Couchbase

[JCBC-280] Provision for auth failure in case of calling createBucket in the same txn twice and adding updateBucket functionality

Fri, 26 Apr 2013 05:21:11 -0500

There are three ways using which we are creating connection in the java client to the server.

1) ClusterManager
2) BucketTool

Both of these classes internally call the ClusterManager.createBucket for creation of the bucket.

Now if I am using all the three instances of the above classes in a single function, the bucket information is overridden without any checks. Ideally using any of the connection classes if I have created a SASL bucket with some information like bucket name = 'SaslBucket', bucket password = 'password', I should not be allowed to change the password using instance of another class. There should be auth failure error being returned the second time client tries to connect to the same bucket. Server supports this because there is an Edit Bucket functionality at the server for the same.

There should be a means of distinction in the request that we want to create the bucket or update.
In case of bucket creation duplicity should be checked where as in case of update this should be allowed as is.

Also, the expectation is that, the user might update the bucket information if he requires to change the password or other details, by explicitly calling updateBucket method which is currently not available.

[JCBC-274] Jenkins test results failing.

Dependency — Mon, 13 May 2013 02:17:00 -0500

When the jenkins job for java build is run with the latest source in Git and the tests are run, 6 tests are failing. Those are very obvious errors and can be fixed. Screenshot attached.

[JCBC-266] NPE in ConfigurationProviderHTTP needs to be handled.

Dependency — Sat, 18 May 2013 01:56:46 -0500

NPE in ConfigurationProviderHTTP needs to be handled.
This is seen at quite a lot of places.

Please refer to the integration test results at :

https://docs.google.com/a/globallogic.com/spreadsheet/ccc?key=0AmLvaJ8oRZ-TdHJBNHJ0eGZfbjBaenBSVGM2VS1oNlE#gid=0

Stack Trace :

SDKD: Mar 12, 2013 1:55:39 AM com.couchbase.client.CouchbaseConnectionFactory$Resubscriber run
SDKD: WARNING: Resubscribe attempt failed:
SDKD: java.lang.NullPointerException
SDKD: at com.couchbase.client.vbucket.ConfigurationProviderHTTP.getBucketConfiguration(ConfigurationProviderHTTP.java:149)
SDKD: at com.couchbase.client.vbucket.ConfigurationProviderHTTP.subscribe(ConfigurationProviderHTTP.java:319)
SDKD: at com.couchbase.client.CouchbaseConnectionFactory$Resubscriber.run(CouchbaseConnectionFactory.java:405)
SDKD: at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
SDKD: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
SDKD: at java.lang.Thread.run(Thread.java:619)
SDKD: Mar 12, 2013 1:55:39 AM com.couchbase.client.CouchbaseConnectionFactory$Resubscriber run

[JCBC-289] Document manipulation of the designdoc/view interface

Mon, 22 Apr 2013 10:21:16 -0500

The library already supports programmatic creation of design docs and views, need to supply documentation around it.

[JCBC-290] Support for publishing view from dev to prod

Mon, 22 Apr 2013 12:18:50 -0500

Support for publishing view from dev to prod

[JCBC-283] Document how best to use expiry with times >30 days

Fri, 12 Apr 2013 07:53:51 -0500

Really needed across all languages...do you want me to file separate issues?

We have some documentation on how to use expiration with relative values, but nothing clearly showing how we recommend calculating a timestamp and sending it to the operation.

[JCBC-281] Document working with the cluster manager in java manual

Mon, 8 Apr 2013 10:17:47 -0500

http://www.couchbase.com/autodocs/couchbase-java-client-1.1.5/com/couchbase/client/ClusterManager.html

This is in the Java docs, but not yet in the manual.

[JCBC-279] Docs: Cross-link bulk loading and blocking queue documentation with async commands

Tue, 2 Apr 2013 19:05:49 -0500

Just had a customer potentially running >1M touch() operations all at once and not checking the return code nor having them in a blocking queue. I think it would be worthwhile to make sure that everyone realizes the importance of proper handling of async operations and it's not obvious when just looking at the API reference for an individual operation.

[JCBC-277] Provide warnings when dependencies don't match expected versions

Tue, 26 Mar 2013 11:53:42 -0500

Recent issues with netty dependencies would be easier caught if we had logging when dependencies are mismatched from what we expect.

[JCBC-275] Slow performance in virtualized environments

Wed, 20 Mar 2013 07:27:21 -0500

This is a placeholder bug meant to indicate that there are disproportionate performance impacts in the Java client when running under a virtualized environment. There are no obvious bottlenecks but it is something we've seen in multiple situations and should be investigated.

In short, there is no specific CPU, network, or disk bottleneck being hit, but performance still seems to drop significantly.

Will update with specific stats later on.

[JCBC-273] Unknown Host Exception should be caught

Fri, 15 Mar 2013 10:34:26 -0500

Encountered these errors while running on Jenkins. These need to be handled.

Stack Trace :

  [junit] Testcase: testMessageReceived took 0.173 sec
    [junit] Testsuite: com.couchbase.client.vbucket.ConfigurationProviderHTTPDownNodeTest
    [junit] 2013-03-15 04:07:54.268 WARN com.couchbase.client.vbucket.ConfigurationProviderHTTP: Connection problems with URI http://bogus:8091/pools ...skipping
    [junit] java.net.UnknownHostException: bogus
    [junit] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:175)
    [junit] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
    [junit] at java.net.Socket.connect(Socket.java:546)
    [junit] at sun.net.NetworkClient.doConnect(NetworkClient.java:173)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
    [junit] at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:321)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:338)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:935)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:876)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:801)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readToString(ConfigurationProviderHTTP.java:417)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readPools(ConfigurationProviderHTTP.java:210)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.getBucketConfiguration(ConfigurationProviderHTTP.java:147)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTPDownNodeTest.testGetBucketConfiguration(ConfigurationProviderHTTPDownNodeTest.java:67)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] at java.lang.reflect.Method.invoke(Method.java:616)
    [junit] at junit.framework.TestCase.runTest(TestCase.java:168)
    [junit] at junit.framework.TestCase.runBare(TestCase.java:134)
    [junit] at junit.framework.TestResult$1.protect(TestResult.java:110)
    [junit] at junit.framework.TestResult.runProtected(TestResult.java:128)
    [junit] at junit.framework.TestResult.run(TestResult.java:113)
    [junit] at junit.framework.TestCase.run(TestCase.java:124)
    [junit] at junit.framework.TestSuite.runTest(TestSuite.java:232)
    [junit] at junit.framework.TestSuite.run(TestSuite.java:227)
    [junit] at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
    [junit] at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:420)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:768)
    [junit] 2013-03-15 04:07:54.724 WARN com.couchbase.client.vbucket.ConfigurationProviderHTTP: Connection problems with URI http://bogustoo:8091/pools ...skipping
    [junit] java.net.UnknownHostException: bogustoo
    [junit] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:175)
    [junit] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
    [junit] at java.net.Socket.connect(Socket.java:546)
    [junit] at sun.net.NetworkClient.doConnect(NetworkClient.java:173)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
    [junit] at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:321)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:338)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:935)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:876)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:801)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readToString(ConfigurationProviderHTTP.java:417)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readPools(ConfigurationProviderHTTP.java:210)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.getBucketConfiguration(ConfigurationProviderHTTP.java:147)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTPDownNodeTest.testGetBucketConfiguration(ConfigurationProviderHTTPDownNodeTest.java:67)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] at java.lang.reflect.Method.invoke(Method.java:616)
    [junit] at junit.framework.TestCase.runTest(TestCase.java:168)
    [junit] at junit.framework.TestCase.runBare(TestCase.java:134)
    [junit] at junit.framework.TestResult$1.protect(TestResult.java:110)
    [junit] at junit.framework.TestResult.runProtected(TestResult.java:128)
    [junit] at junit.framework.TestResult.run(TestResult.java:113)
    [junit] at junit.framework.TestCase.run(TestCase.java:124)
    [junit] at junit.framework.TestSuite.runTest(TestSuite.java:232)
    [junit] at junit.framework.TestSuite.run(TestSuite.java:227)
    [junit] at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
    [junit] at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:420)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:768)
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 0.991 sec
    [junit] ------------- Standard Error -----------------
    [junit] 2013-03-15 04:07:54.268 WARN com.couchbase.client.vbucket.ConfigurationProviderHTTP: Connection problems with URI http://bogus:8091/pools ...skipping
    [junit] java.net.UnknownHostException: bogus
    [junit] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:175)
    [junit] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
    [junit] at java.net.Socket.connect(Socket.java:546)
    [junit] at sun.net.NetworkClient.doConnect(NetworkClient.java:173)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
    [junit] at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:321)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:338)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:935)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:876)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:801)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readToString(ConfigurationProviderHTTP.java:417)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readPools(ConfigurationProviderHTTP.java:210)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.getBucketConfiguration(ConfigurationProviderHTTP.java:147)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTPDownNodeTest.testGetBucketConfiguration(ConfigurationProviderHTTPDownNodeTest.java:67)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] at java.lang.reflect.Method.invoke(Method.java:616)
    [junit] at junit.framework.TestCase.runTest(TestCase.java:168)
    [junit] at junit.framework.TestCase.runBare(TestCase.java:134)
    [junit] at junit.framework.TestResult$1.protect(TestResult.java:110)
    [junit] at junit.framework.TestResult.runProtected(TestResult.java:128)
    [junit] at junit.framework.TestResult.run(TestResult.java:113)
    [junit] at junit.framework.TestCase.run(TestCase.java:124)
    [junit] at junit.framework.TestSuite.runTest(TestSuite.java:232)
    [junit] at junit.framework.TestSuite.run(TestSuite.java:227)
    [junit] at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
    [junit] at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:420)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:768)
    [junit] 2013-03-15 04:07:54.724 WARN com.couchbase.client.vbucket.ConfigurationProviderHTTP: Connection problems with URI http://bogustoo:8091/pools ...skipping
    [junit] java.net.UnknownHostException: bogustoo
    [junit] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:175)
    [junit] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
    [junit] at java.net.Socket.connect(Socket.java:546)
    [junit] at sun.net.NetworkClient.doConnect(NetworkClient.java:173)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
    [junit] at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
    [junit] at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:321)
    [junit] at sun.net.www.http.HttpClient.New(HttpClient.java:338)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:935)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:876)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:801)
    [junit] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readToString(ConfigurationProviderHTTP.java:417)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readPools(ConfigurationProviderHTTP.java:210)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.getBucketConfiguration(ConfigurationProviderHTTP.java:147)
    [junit] at com.couchbase.client.vbucket.ConfigurationProviderHTTPDownNodeTest.testGetBucketConfiguration(ConfigurationProviderHTTPDownNodeTest.java:67)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    [junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [junit] at java.lang.reflect.Method.invoke(Method.java:616)
    [junit] at junit.framework.TestCase.runTest(TestCase.java:168)
    [junit] at junit.framework.TestCase.runBare(TestCase.java:134)
    [junit] at junit.framework.TestResult$1.protect(TestResult.java:110)
    [junit] at junit.framework.TestResult.runProtected(TestResult.java:128)
    [junit] at junit.framework.TestResult.run(TestResult.java:113)
    [junit] at junit.framework.TestCase.run(TestCase.java:124)
    [junit] at junit.framework.TestSuite.runTest(TestSuite.java:232)
    [junit] at junit.framework.TestSuite.run(TestSuite.java:227)
    [junit] at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
    [junit] at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:420)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911)
    [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:768)

[JCBC-263] memcached connection fails with "Attempting to overwrite channel"

Mon, 11 Mar 2013 13:45:28 -0500

In this case, multiple CouchbaseClient objects are being connected. At the 14th instance, this is printed to the screen and the application hangs.

[SDKD(WARNING) 5.49 cbsdk.sdkd.remote remote.py:266] WARNING: URIs: [http://10.2.1.102:8091/pools?#]
[SDKD(WARNING) 5.51 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM com.couchbase.sdkd.cbclient.Handle makeViewTimeout
[SDKD(WARNING) 5.51 cbsdk.sdkd.remote remote.py:266] WARNING: ~~JCBC-168~~: Manually setting view timeout to 75000
[SDKD(WARNING) 5.51 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection createConnections
[SDKD(WARNING) 5.51 cbsdk.sdkd.remote remote.py:266] INFO: Added {QA sa=/10.2.1.102:11210, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} to connect queue
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection createConnections
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] INFO: Added {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} to connect queue
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM com.couchbase.client.CouchbaseClient <init>
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] INFO: viewmode property isn't defined. Setting viewmode to production mode
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection handleIO
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] INFO: Connection state changed for sun.nio.ch.SelectionKeyImpl@6d79953c
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection handleIO
[SDKD(WARNING) 5.53 cbsdk.sdkd.remote remote.py:266] INFO: Connection state changed for sun.nio.ch.SelectionKeyImpl@4934ce4a
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection queueReconnect
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] WARNING: Closing, and reopening {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=8}, attempt 1.
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection handleIO
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] INFO: Reconnecting due to failure to connect to {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=Cmd: 10 Opaque: 55, toWrite=0, interested=0}
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] java.net.ConnectException: Could not send noop upon connect! This may indicate a running, but not responding memcached instance.
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:439)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.CouchbaseMemcachedConnection.run(CouchbaseMemcachedConnection.java:158)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection queueReconnect
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] WARNING: Closing, and reopening {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=Cmd: 10 Opaque: 55, toWrite=0, interested=0}, attempt 1.
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection queueReconnect
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] WARNING: Closing, and reopening {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=Cmd: 10 Opaque: 55, toWrite=0, interested=0}, attempt 3.
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.MemcachedConnection queueReconnect
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] INFO: The channel or socket was null for {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=Cmd: 10 Opaque: 55, toWrite=0, interested=0}
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] Exception in thread "SDK Handle-14" java.lang.NullPointerException
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.MemcachedConnection.queueReconnect(MemcachedConnection.java:589)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.CouchbaseMemcachedConnection.reconfigure(CouchbaseMemcachedConnection.java:132)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.CouchbaseClient.reconfigure(CouchbaseClient.java:273)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.vbucket.ReconfigurableObserver.update(ReconfigurableObserver.java:54)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at java.util.Observable.notifyObservers(Observable.java:159)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.vbucket.BucketMonitor.setBucket(BucketMonitor.java:258)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.vbucket.BucketMonitor.startMonitor(BucketMonitor.java:188)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.vbucket.ConfigurationProviderHTTP.subscribe(ConfigurationProviderHTTP.java:288)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.CouchbaseClient.<init>(CouchbaseClient.java:246)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.sdkd.SdkdConfig.getClient(SdkdConfig.java:99)
[SDKD(WARNING) 5.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.sdkd.cbclient.Handle.<init>(Handle.java:159)
[SDKD(WARNING) 5.59 cbsdk.sdkd.remote remote.py:266] at com.couchbase.sdkd.server.SdkServer.executeCommand(SdkServer.java:104)
[SDKD(WARNING) 5.59 cbsdk.sdkd.remote remote.py:266] at com.couchbase.sdkd.server.SdkServer.handleRequest(SdkServer.java:189)
[SDKD(WARNING) 5.59 cbsdk.sdkd.remote remote.py:266] at com.couchbase.sdkd.server.SdkServer.run(SdkServer.java:245)
[SDKD(WARNING) 5.59 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:20 PM net.spy.memcached.auth.AuthThread$1 receivedStatus
[SDKD(WARNING) 5.59 cbsdk.sdkd.remote remote.py:266] INFO: Authenticated to /10.2.1.102:11210
[SDKD(WARNING) 13.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:28 PM net.spy.memcached.MemcachedConnection attemptReconnects
[SDKD(WARNING) 13.55 cbsdk.sdkd.remote remote.py:266] INFO: Reconnecting {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=Cmd: 10 Opaque: 55, toWrite=0, interested=0}
[SDKD(WARNING) 13.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:28 PM net.spy.memcached.MemcachedConnection handleIO
[SDKD(WARNING) 13.55 cbsdk.sdkd.remote remote.py:266] INFO: Connection state changed for sun.nio.ch.SelectionKeyImpl@79884a40
[SDKD(WARNING) 13.56 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:28 PM net.spy.memcached.auth.AuthThread$1 receivedStatus
[SDKD(WARNING) 13.56 cbsdk.sdkd.remote remote.py:266] INFO: Authenticated to /10.2.1.101:11210
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] Mar 8, 2013 5:39:36 PM net.spy.memcached.MemcachedConnection attemptReconnects
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] INFO: Reconnecting {QA sa=/10.2.1.101:11210, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] Exception in thread "Memcached IO over {MemcachedConnection to /10.2.1.102:11210 /10.2.1.101:11210}" java.lang.AssertionError: Attempting to overwrite channel
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.protocol.TCPMemcachedNodeImpl.setChannel(TCPMemcachedNodeImpl.java:496)
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.protocol.TCPMemcachedNodeImpl.registerChannel(TCPMemcachedNodeImpl.java:484)
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.MemcachedConnection.attemptReconnects(MemcachedConnection.java:680)
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:262)
[SDKD(WARNING) 21.55 cbsdk.sdkd.remote remote.py:266] at com.couchbase.client.CouchbaseMemcachedConnection.run(CouchbaseMemcachedConnection.java:158)

[JCBC-264] create a unit test for ensuring couchbase client configuration works with memcached bucket type

Mon, 11 Mar 2013 15:44:29 -0500

With a recent bug, we had the config's lack of warmup throwing off the configuration provider. This should be unit-testable since we have unit tests for the configuration provider.

[JCBC-262] Transcoder error not reported correctly

Mon, 11 Mar 2013 09:42:32 -0500

When a custom transcoder has an error, certain CAS operations fail with an error about the operation being cancelled, which is misleading and doesn't point to the transcoder as a problem.

Logs:
Mar 7, 2013 10:20:37 AM net.spy.memcached.protocol.TCPMemcachedNodeImpl setupResend
WARNING: Discarding partially completed op: Cmd: 0 Opaque: 120 Key: *****
Mar 7, 2013 10:20:40 AM net.spy.memcached.auth.AuthThread$1 receivedStatus
INFO: Authenticated to 127.0.0.1/127.0.0.1:11210

The error occurs on the get on the future. It is in fact a marshalling error in the transcoder but that never gets reported.

Code:
OperationFuture<CASValue<documentType>> future = this.client.asyncGets(key, transcoder);
return future.get(5, TimeUnit.SECONDS);

Transcoder (incorrect):

@Component
public class TranscoderImpl<T> implements Transcoder<T> {

@Autowired
@Qualifier("JSON")
Marshaller marshaler;

@Autowired
@Qualifier("JSON")
Unmarshaller unmarshaler;

@Override
public boolean asyncDecode(CachedData arg0) {
// TODO Auto-generated method stub
return false;
}

@Override
public T decode(CachedData arg0) {
// TODO Auto-generated method stub
StreamSource str = new StreamSource(new java.io.ByteArrayInputStream(arg0.getData()));

Object obj;
try {
obj = unmarshaler.unmarshal(str);
} catch (Exception e) {
// TODO Auto-generated catch block
throw new RuntimeException(e);
}

return (T)obj;
}

@Override
public CachedData encode(T arg0) {
// TODO Auto-generated method stub
ByteArrayOutputStream sink = new ByteArrayOutputStream();

try {
marshaler.marshal(arg0, new StreamResult(sink));
} catch (Exception e) {
// TODO Auto-generated catch block
throw new RuntimeException(e);
}

return new CachedData(0, sink.toByteArray(), getMaxSize());
}

@Override
public int getMaxSize() {
// TODO Auto-generated method stub
return CachedData.MAX_SIZE;
}

}

[JCBC-259] String starting with number converted to number only in setKey for views

Wed, 6 Mar 2013 14:52:18 -0600

If a key of "3abc" is passed in to a setKey for a view query, it will convert this into just 3.

Looking at /src/main/java/com/couchbase/client/protocol/views/Query.java:558
it looks like NumberFormat.getInstance().parse(value.toString()).toString(); will convert 3abc to 3.

This is because NumberFormat.parse is define to "Parses text from the beginning of the given string to produce a number. The method may not use the entire text of the given string." so if the string starts with a number it will not fail out and just be used as a string.

[JCBC-255] improve warmup handing

Wed, 27 Feb 2013 14:18:56 -0600

With the integration of ~~JCBC-27~~, the client will do an exponential backoff at construction time when the server is unavailable, and then throw an exception (from the ctor, unfortunately) if it could not complete.

There are scenarios where this isn't ideal. For example, if someone were to cut off power to a datacenter, the app servers will start up much faster than the Couchbase cluster will. Unfortunately, this means someone will need to go around and restart the app servers after the DB cluster is up.

This process should be improved and bootstrapping should no longer block construction. It should block operations (there is a latch for that), but not construction.

[JCBC-246] Docs: No CAS+durability in API reference table

Tue, 12 Feb 2013 07:05:05 -0600

The table here: http://www.couchbase.com/docs/couchbase-sdk-java-1.1/api-reference-summary.html

Doesn't contain CAS methods with durability constraints.

[JCBC-239] Docs: Document "paginator"

Wed, 6 Feb 2013 15:18:23 -0600

Docs still point to library version 1.1...will that be updated?

I see reference to a paginator (http://www.couchbase.com/docs/couchbase-sdk-java-1.1/couchbase-sdk-java-rn_1-1-0c.html) but can't find any further documentation on how to use it

[JCBC-295] Spring Connector Guide

Mon, 6 May 2013 11:32:41 -0500

Phase 1:

-Need intended user/audience from SME
-Need suggested topics for TOC from SME

[JCBC-301] Strange Logic in CouchbaseClient observePoll method

Thu, 9 May 2013 23:21:24 -0500

At CouchbaseClient.java line 2192 and line 2196

They both call

replicaPersistedTo++;

it means when r.getValue() == ObserveResponse.NOT_FOUND_PERSISTED) && !isMaster, replicaPersistedTo will be called twice.

Is that intensional. Looks odd to me.

[JCBC-303] javadoc builds must include spymemcached

Duplicate — Wed, 15 May 2013 11:21:36 -0500

Current javadoc build process does not include the spymemcached docs, which were included in previous releases. The documentation:

http://hub.internal.couchbase.com/confluence/display/techpubs/Using+Existing+Docs+System+%28WIP%29

does not mention how to include, nor is there evidence of how it was done before.

Need to have:

* a process that includes correct third-party documentation, when required.

* one that is not tied to a particular host

* is fully documented

[JCBC-294] OOME on ViewResponse for very large view

Thu, 2 May 2013 08:17:10 -0500

We had some complain from developer that are using large view for example 500k elements. (with small content id+url for example). The total size of the view is in this case around 52Mb.

The result out of memory.
2013-05-01 16:47:06.536 INFO
com.couchbase.client.http.AsyncConnectionManager$ConnRequestCallback:
/192.168.63.99:8092 - Session request successful
Exception in thread "I/O dispatcher 3" java.lang.OutOfMemoryError: Java
heap space
    at org.apache.http.util.CharArrayBuffer.expand(CharArrayBuffer.java:61)
    at org.apache.http.util.CharArrayBuffer.append(CharArrayBuffer.java:91)
    at org.apache.http.util.EntityUtils.toString(EntityUtils.java:200)
    at org.apache.http.util.EntityUtils.toString(EntityUtils.java:221)
    at
com.couchbase.client.protocol.views.HttpOperationImpl.getEntityString(Http
OperationImpl.java:106)
    at
com.couchbase.client.protocol.views.ViewOperationImpl.handleResponse(ViewO
perationImpl.java:60)

Note from our community member

After digging into the SDK and apache code, it occurred that the viewResponse actually contains Strings (the json objects). I think the "problem" lies in handleResponse method in ViewOperationImpl.
Here the SDK are using the apache http core to get the json String via the call
String json = getEntityString(response);
Would it be smarter to give back a InputStream instead? This could quite
easily be fixed because the response could give back a HttpEntity that
again could give the developer a InputStream.
In this way the SDK did not have to copy each Char, which it actually
does in the apache http core library (see expand in
CharArrayBufffer.class ). It does the following: char newbuffer[] = new
char[Math.max(this.buffer.length << 1, newlen)];
I think it kind of chokes when it get 52MB it have to copy from Char to a
String and then deliver it back.

BTW: I've tried calling the same view and operating on it form node.js
(using baseview and the official sdk), it just worked like a charm. And
this is prob. because you get a stream of data chunks that you can work
on, which seems more effective.

[JCBC-240] Add the total number of rows in the ViewResponce

Fri, 17 May 2013 02:38:55 -0500

It will be great to have the total number of rows in the ViewResponse object when calling a view.

This is the value present in the JSON attribute "total_rows" of a response
{"total_rows":1412,"rows":[

This enhancement request comes from the community forum:
http://www.couchbase.com/forums/thread/recommend-including-totalrows-value-java-client-viewresponse-class

[JCBC-305] Client does not recover with Memcached connection to the server and primary node goes down.

Tue, 21 May 2013 22:35:54 -0500

2013-05-21 12:59:04.158 ERROR net.spy.memcached.protocol.ascii.StoreOperationImpl: Error: SERVER_ERROR temporary failure
Deepti Exception 1 java.util.concurrent.ExecutionException: OperationException: SERVER: SERVER_ERROR temporary failure
2013-05-21 12:59:04.158 INFO net.spy.memcached.MemcachedConnection: Reconnection due to exception handling a memcached operation on {QA sa=/10.3.121.207:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: add Key: Emp0000000365cbc Flags: 0 Exp: 0 Data Length: 79, topWop=null, toWrite=0, interested=8}. This may be due to an authentication failure.
OperationException: SERVER: SERVER_ERROR temporary failure
at net.spy.memcached.protocol.BaseOperationImpl.handleError(BaseOperationImpl.java:164)
at net.spy.memcached.protocol.ascii.OperationImpl.readFromBuffer(OperationImpl.java:151)
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:537)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-05-21 12:59:04.159 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000366cbc.
2013-05-21 12:59:04.159 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/10.3.121.207:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: add Key: Emp0000000365cbc Flags: 0 Exp: 0 Data Length: 79, topWop=null, toWrite=0, interested=8}, attempt 22.
2013-05-21 12:59:04.159 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000366cbc.
2013-05-21 12:59:04.159 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: add Key: Emp0000000365cbc Flags: 0 Exp: 0 Data Length: 79
2013-05-21 12:59:04.160 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-05-21 12:59:04.160 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000366cbc.
2013-05-21 12:59:04.160 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000366cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:06.660 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000367cbc.
2013-05-21 12:59:06.661 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000367cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:09.163 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000368cbc.
2013-05-21 12:59:09.164 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000368cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:11.666 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000369cbc.
2013-05-21 12:59:11.667 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000369cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:14.168 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000370cbc.
2013-05-21 12:59:14.169 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000370cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:16.671 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000371cbc.
2013-05-21 12:59:16.672 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000371cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:19.174 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000372cbc.
2013-05-21 12:59:19.175 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000372cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:21.677 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000373cbc.
2013-05-21 12:59:21.678 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000373cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-05-21 12:59:24.179 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000374cbc.
2013-05-21 12:59:24.180 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000374cbc.

[JCBC-304] Client leads to a deadlock when all the servers are unavailable

Dependency — Fri, 24 May 2013 04:03:16 -0500

Stack Trace :-

"pool-17-thread-8" prio=10 tid=0x00007fdea007c800 nid=0xacac waiting on condition [0x00007fdf168e6000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <0x00000007f8d383f0> (a java.util.concurrent.CountDownLatch$Sync)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.jav
a:994)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:
1303)
        at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:236)
        at com.couchbase.client.vbucket.BucketUpdateResponseHandler.getReceivedFuture(BucketUpdateResponseHandler.java:147)
        at com.couchbase.client.vbucket.BucketUpdateResponseHandler.getLastResponse(BucketUpdateResponseHandler.java:127)
        at com.couchbase.client.vbucket.BucketMonitor.startMonitor(BucketMonitor.java:212)
        at com.couchbase.client.vbucket.ConfigurationProviderHTTP.subscribe(ConfigurationProviderHTTP.java:333)
        - locked <0x00000007f81cb9c0> (a com.couchbase.client.vbucket.ConfigurationProviderHTTP)
        at com.couchbase.client.CouchbaseClient.<init>(CouchbaseClient.java:247)

[JCBC-285] Memcached connection disconnects in case of single node server instance.

Mon, 22 Apr 2013 00:43:58 -0500

When I tried to establish a Memcached Connection with a single node server - either 1.8.1 or 2.0.1, following errors were received :

2013-04-16 18:27:01.247 INFO net.spy.memcached.MemcachedConnection: Added {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} to connect queue
Created a MemcachedClient with port 11211
2013-04-16 18:27:01.251 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@1ffb3754
2013-04-16 18:27:01.263 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000001cbc.
2013-04-16 18:27:01.266 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:27:01.267 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 1.
2013-04-16 18:27:01.268 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:27:01.268 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: add Key: Emp0000000001cbc Flags: 0 Exp: 0 Data Length: 52
Deepti Exception 1 java.util.concurrent.ExecutionException: java.util.concurrent.CancellationException: Cancelled
2013-04-16 18:27:01.269 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000002cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:03.772 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000003cbc.
2013-04-16 18:27:05.271 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=2, #iq=0, topRop=null, topWop=Cmd: add Key: Emp0000000002cbc Flags: 0 Exp: 0 Data Length: 52, toWrite=0, interested=0}
2013-04-16 18:27:05.273 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@30b42a7e
2013-04-16 18:27:05.275 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: add Key: Emp0000000003cbc Flags: 0 Exp: 0 Data Length: 52, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:27:05.278 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: add Key: Emp0000000003cbc Flags: 0 Exp: 0 Data Length: 52, topWop=null, toWrite=0, interested=8}, attempt 2.
2013-04-16 18:27:05.279 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: add Key: Emp0000000003cbc Flags: 0 Exp: 0 Data Length: 52
Deepti Exception 1 java.util.concurrent.ExecutionException: java.util.concurrent.CancellationException: Cancelled
2013-04-16 18:27:05.281 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:27:05.281 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000004cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:07.783 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000005cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:10.286 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000006cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:12.788 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000007cbc.
2013-04-16 18:27:13.281 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=4, #iq=0, topRop=null, topWop=Cmd: add Key: Emp0000000004cbc Flags: 0 Exp: 0 Data Length: 52, toWrite=0, interested=0}
2013-04-16 18:27:13.283 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@1a23b006
2013-04-16 18:27:13.286 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: add Key: Emp0000000007cbc Flags: 0 Exp: 0 Data Length: 52, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:27:13.289 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=2, #Wops=0, #iq=0, topRop=Cmd: add Key: Emp0000000007cbc Flags: 0 Exp: 0 Data Length: 52, topWop=null, toWrite=0, interested=8}, attempt 3.
2013-04-16 18:27:13.291 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: add Key: Emp0000000007cbc Flags: 0 Exp: 0 Data Length: 52
Deepti Exception 1 java.util.concurrent.ExecutionException: java.util.concurrent.CancellationException: Cancelled
2013-04-16 18:27:13.292 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:27:13.293 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000008cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:15.796 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000009cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:18.298 WARN net.spy.memcached.MemcachedConnection: Could not redistribute to another node, retrying primary node for Emp0000000010cbc.
Deepti Exception 1 java.lang.RuntimeException: Timed out waiting for operation
2013-04-16 18:27:29.302 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=3, #iq=0, topRop=null, topWop=Cmd: add Key: Emp0000000008cbc Flags: 0 Exp: 0 Data Length: 52, toWrite=0, interested=0}
2013-04-16 18:27:29.304 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@3bb59c1b
2013-04-16 18:27:29.306 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:27:29.306 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 4.
2013-04-16 18:27:29.307 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:27:59.338 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:27:59.340 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@7685dfcf
2013-04-16 18:27:59.342 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:27:59.344 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 5.
2013-04-16 18:27:59.346 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:28:29.376 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:28:29.378 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@606145c5
2013-04-16 18:28:29.380 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:28:29.382 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 6.
2013-04-16 18:28:29.384 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:28:59.414 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:28:59.416 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@15fac189
2013-04-16 18:28:59.417 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:28:59.419 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 7.
2013-04-16 18:28:59.420 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:29:29.451 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:29:29.453 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@6520b476
2013-04-16 18:29:29.454 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:29:29.456 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 8.
2013-04-16 18:29:29.457 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:29:59.485 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:29:59.487 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@3ebbe4b0
2013-04-16 18:29:59.488 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:29:59.490 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 9.
2013-04-16 18:29:59.491 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:30:29.521 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:30:29.523 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@14220a0c
2013-04-16 18:30:29.524 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:30:29.526 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 10.
2013-04-16 18:30:29.527 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:30:59.557 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:30:59.559 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@2d64ff8f
2013-04-16 18:30:59.561 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:30:59.562 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 11.
2013-04-16 18:30:59.564 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version
2013-04-16 18:31:29.582 INFO net.spy.memcached.MemcachedConnection: Reconnecting {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0}
2013-04-16 18:31:29.584 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@59799a64
2013-04-16 18:31:29.585 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}
java.io.IOException: Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(MemcachedConnection.java:526)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:430)
at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:247)
at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:915)
2013-04-16 18:31:29.587 WARN net.spy.memcached.MemcachedConnection: Closing, and reopening {QA sa=/127.0.0.1:11211, #Rops=1, #Wops=0, #iq=0, topRop=Cmd: version, topWop=null, toWrite=0, interested=8}, attempt 12.
2013-04-16 18:31:29.588 WARN net.spy.memcached.protocol.ascii.AsciiMemcachedNodeImpl: Discarding partially completed op: Cmd: version

Memcached connection is trying to re-distribute the data on other nodes in a cluster which is why the connection is not getting established.

[JCBC-244] Sample Application : fix the welcome file and gitignore

Thu, 2 May 2013 16:33:23 -0500

1- the Welcome auto redirect in Jetty does not work correctly.
2- Update the gitignore to handle IDE and OS

[JCBC-247] ViewReponse: Provide a way to return the JSON as it is

Tue, 7 May 2013 14:09:23 -0500

The Java API provide most of the time access to the JSON document (as string):
- get commands
- view command using the ViewRow.getDocument

When we call a view the result is a ViewResponse, but it is not possible to get the JSON document out of it, and the view engine returned a JSON doc.

It could be interesting for some development, to be able to do a viewResponse.toJSON() that returns the exact result of the view. (this function may not be compliant with the includesDoc(true) option)

The use case is simple, suppose I am creating a REST API and I would like to call the view and return the result to the user it would be good to do something like :

@GET
@Produces({ "application/json"})
@Path("/person/")
public String getPersons( ) {

           View view = client.getView(PERSON_DSGN_DOC, PERSON_BY_NAME_VIEW);
            Query query = new Query();
            ViewResponse viewResponse = client.query(view, query);
            return viewResponse.toJSON();

}

Today I have to loop on each result and create a new object/document

[JCBC-302] Small issue in release note 1.1.6

Mon, 13 May 2013 13:36:54 -0500

In the release note :
http://www.couchbase.com/docs/couchbase-sdk-java-1.1/couchbase-sdk-java-rn_1-1-6a.html

Small typo:
"(wthout the quotes) "

should be "without"

[JCBC-300] Add as Example: Java/NoSQL Tricks

Mon, 20 May 2013 14:35:47 -0500

http://www.infoworld.com/d/application-development/how-teach-java-ee-app-new-nosql-tricks-215277

[JCBC-306] Add a method that returns the list of design document for a bucket

Tue, 21 May 2013 03:40:34 -0500

It would be great to add a method to return the list of design document for a bucket.

We should do something like:

List< DesignDocument > client.getDesignDocuments()

[JCBC-310] Create a getBulk() operation that returns CASValue object

Thu, 23 May 2013 10:37:57 -0500

The current client.getBulk(keys) returns the values only,

It would be useful to create an operation that returns the list of CASValue to allow developer to do CAS operations.

This should also be supported by the views when doing a "includeDocs" operation

[JCBC-311] Expose the Server Error Code in the OperationStatus

Thu, 23 May 2013 11:05:18 -0500

The Java SDK does not use the Error Code from the server side, as documented here:
http://blog.couchbase.com/handling-runtime-errors-ruby-python-and-c-clients

It would be very useful for the developer to be able to use the same code in Java. We could use the OperationStatus to expose this enumeration.

[JCBC-292] Missing documentation about delete method with durability option

Thu, 25 Apr 2013 07:29:05 -0500

The Delete chapter of the documentation does not mention the methods with durability parameter (persistedto and replicatedto)

http://www.couchbase.com/docs/couchbase-sdk-java-1.1/couchbase-sdk-java-update-delete.html#table-couchbase-sdk_java_delete

We need to put the same type of content that the one used for the store operation:
http://www.couchbase.com/docs/couchbase-sdk-java-1.1/couchbase-sdk-java-set-durability.html

may be "join/merge" the store and delete?