Receiving signal for outdated configuration every 10 seconds

Java SDK
,
1

Hello,
I’ve just fresh installed couchbase server community version on single CentOS 6 host with couchbase Java SDK v2.3.4.
long story short,
I’ve connected to couchbase server successfully with following code:

couchbaseEnvironment = DefaultCouchbaseEnvironment.builder().build();
cluster = CouchbaseCluster.create(couchbaseEnvironment, hosts);
bucket = cluster.openBucket(CB_INFO.BUCKET_NAME);

and I’ve done nothing after that.
after connecting to the server, log says,

2016-10-12 16:58:58.124 [INFO ] SLMain::main(42) - COUCHBASE::CONNECTION::INITIALIZED
2016-10-12 16:58:58.264 [INFO ] SLMain::run(68) - CONNECTION::COUCHBASE(OK)
2016-10-12 16:59:03.264 [INFO ] SLMain::run(68) - CONNECTION::COUCHBASE(OK)
2016-10-12 16:59:06.898 [DEBUG] ConfigurationProvider::debug(85) - Received signal for outdated configuration.
2016-10-12 16:59:06.907 [DEBUG] ConfigurationProvider::debug(90) - New Bucket default config proposed.
2016-10-12 16:59:06.912 [DEBUG] CarrierRefresher::debug(90) - Completed refreshing config for bucket “default”
2016-10-12 16:59:08.265 [INFO ] SLMain::run(68) - CONNECTION::COUCHBASE(OK)
2016-10-12 16:59:13.264 [INFO ] SLMain::run(68) - CONNECTION::COUCHBASE(OK)
2016-10-12 16:59:16.896 [DEBUG] ConfigurationProvider::debug(85) - Received signal for outdated configuration.
2016-10-12 16:59:16.902 [DEBUG] ConfigurationProvider::debug(90) - New Bucket default config proposed.
2016-10-12 16:59:16.905 [DEBUG] CarrierRefresher::debug(90) - Completed refreshing config for bucket “default”
2016-10-12 16:59:18.265 [INFO ] SLMain::run(68) - CONNECTION::COUCHBASE(OK)

as you can see, configuration provider keeps receiving “outdated configuration” every 10 seconds.
I have no idea why this happens and yet know the effects.
I’ve tried changing all the environment configurations and sdk versions from 2.0 to 2.3 but the results are the same.
I don’t know what to do and what should do.

has anybody experienced this? or have solution to this?

EDIT: adding trace logs

2016-10-12 18:04:19.139 [DEBUG] ConfigurationProvider::debug(85) - Received signal for outdated configuration.
2016-10-12 18:04:19.141 [TRACE] LoggingHandler::trace(41) - [id: 0x0c1358b6, L:/127.0.0.1:49678 - R:localhost/127.0.0.1:11210] WRITE: 24B
±------------------------------------------------+
| 0 1 2 3 4 5 6 7 8 9 a b c d e f |
±-------±------------------------------------------------±---------------+
|00000000| 80 b5 00 00 00 00 00 00 00 00 00 00 00 00 00 15 |…|
|00000010| 00 00 00 00 00 00 00 00 |… |
±-------±------------------------------------------------±---------------+
2016-10-12 18:04:19.141 [TRACE] LoggingHandler::trace(41) - [id: 0x0c1358b6, L:/127.0.0.1:49678 - R:localhost/127.0.0.1:11210] FLUSH
2016-10-12 18:04:19.142 [TRACE] LoggingHandler::trace(41) - [id: 0x0c1358b6, L:/127.0.0.1:49678 - R:localhost/127.0.0.1:11210] RECEIVED: 5079B
±------------------------------------------------+
| 0 1 2 3 4 5 6 7 8 9 a b c d e f |
±-------±------------------------------------------------±---------------+
|00000000| 81 b5 00 00 00 00 00 00 00 00 13 bf 00 00 00 15 |…|
|00000010| 00 00 00 00 00 00 00 00 7b 22 72 65 76 22 3a 31 |…{“rev”:1|
|00000020| 35 2c 22 6e 61 6d 65 22 3a 22 64 65 66 61 75 6c |5,“name”:“defaul|
|00000030| 74 22 2c 22 75 72 69 22 3a 22 2f 70 6f 6f 6c 73 |t”,“uri”:“/pools|
|00000040| 2f 64 65 66 61 75 6c 74 2f 62 75 63 6b 65 74 73 |/default/buckets|
|00000050| 2f 64 65 66 61 75 6c 74 3f 62 75 63 6b 65 74 5f |/default?bucket_|
|00000060| 75 75 69 64 3d 64 61 34 62 66 38 33 39 38 33 36 |uuid=da4bf839836|
|00000070| 38 66 35 36 64 34 31 61 63 65 36 62 39 63 30 61 |8f56d41ace6b9c0a|
|00000080| 38 31 32 31 61 22 2c 22 73 74 72 65 61 6d 69 6e |8121a”,“streamin|
|00000090| 67 55 72 69 22 3a 22 2f 70 6f 6f 6c 73 2f 64 65 |gUri”:“/pools/de|
|000000a0| 66 61 75 6c 74 2f 62 75 63 6b 65 74 73 53 74 72 |fault/bucketsStr|
|000000b0| 65 61 6d 69 6e 67 2f 64 65 66 61 75 6c 74 3f 62 |eaming/default?b|
|000000c0| 75 63 6b 65 74 5f 75 75 69 64 3d 64 61 34 62 66 |ucket_uuid=da4bf|
|000000d0| 38 33 39 38 33 36 38 66 35 36 64 34 31 61 63 65 |8398368f56d41ace|
|000000e0| 36 62 39 63 30 61 38 31 32 31 61 22 2c 22 6e 6f |6b9c0a8121a”,“no|
|000000f0| 64 65 73 22 3a 5b 7b 22 63 6f 75 63 68 41 70 69 |des”:[{“couchApi|
|00000100| 42 61 73 65 22 3a 22 68 74 74 70 3a 2f 2f 24 48 |Base”:“http://$H|
|00000110| 4f 53 54 3a 38 30 39 32 2f 64 65 66 61 75 6c 74 |OST:8092/default|
|00000120| 25 32 42 64 61 34 62 66 38 33 39 38 33 36 38 66 |%2Bda4bf8398368f|
|00000130| 35 36 64 34 31 61 63 65 36 62 39 63 30 61 38 31 |56d41ace6b9c0a81|
|00000140| 32 31 61 22 2c 22 68 6f 73 74 6e 61 6d 65 22 3a |21a”,“hostname”:expressionless:
|00000150| 22 24 48 4f 53 54 3a 38 30 39 31 22 2c 22 70 6f |“$HOST:8091”,“po|
|00000160| 72 74 73 22 3a 7b 22 70 72 6f 78 79 22 3a 31 31 |rts”:{“proxy”:11|
|00000170| 32 31 31 2c 22 64 69 72 65 63 74 22 3a 31 31 32 |211,“direct”:112|
|00000180| 31 30 7d 7d 5d 2c 22 6e 6f 64 65 73 45 78 74 22 |10}}],“nodesExt”|
|00000190| 3a 5b 7b 22 73 65 72 76 69 63 65 73 22 3a 7b 22 |:[{“services”:{“|
|000001a0| 6d 67 6d 74 22 3a 38 30 39 31 2c 22 69 6e 64 65 |mgmt”:8091,“inde|
|000001b0| 78 41 64 6d 69 6e 22 3a 39 31 30 30 2c 22 69 6e |xAdmin”:9100,“in|
|000001c0| 64 65 78 53 63 61 6e 22 3a 39 31 30 31 2c 22 69 |dexScan”:9101,“i|
|000001d0| 6e 64 65 78 48 74 74 70 22 3a 39 31 30 32 2c 22 |ndexHttp”:9102,“|
|000001e0| 69 6e 64 65 78 53 74 72 65 61 6d 49 6e 69 74 22 |indexStreamInit”|
|000001f0| 3a 39 31 30 33 2c 22 69 6e 64 65 78 53 74 72 65 |:9103,“indexStre|
|00000200| 61 6d 43 61 74 63 68 75 70 22 3a 39 31 30 34 2c |amCatchup”:9104,|
|00000210| 22 69 6e 64 65 78 53 74 72 65 61 6d 4d 61 69 6e |“indexStreamMain|
|00000220| 74 22 3a 39 31 30 35 2c 22 63 61 70 69 22 3a 38 |t”:9105,“capi”:8|
|00000230| 30 39 32 2c 22 70 72 6f 6a 65 63 74 6f 72 22 3a |092,“projector”:expressionless:
|00000240| 39 39 39 39 2c 22 6b 76 22 3a 31 31 32 31 30 2c |9999,“kv”:11210,|
|00000250| 22 6d 6f 78 69 22 3a 31 31 32 31 31 2c 22 6e 31 |“moxi”:11211,“n1|
|00000260| 71 6c 22 3a 38 30 39 33 7d 2c 22 74 68 69 73 4e |ql”:8093},“thisN|
|00000270| 6f 64 65 22 3a 74 72 75 65 7d 5d 2c 22 6e 6f 64 |ode”:true}],“nod|
|00000280| 65 4c 6f 63 61 74 6f 72 22 3a 22 76 62 75 63 6b |eLocator”:“vbuck|
|00000290| 65 74 22 2c 22 75 75 69 64 22 3a 22 64 61 34 62 |et”,“uuid”:“da4b|
|000002a0| 66 38 33 39 38 33 36 38 66 35 36 64 34 31 61 63 |f8398368f56d41ac|
|000002b0| 65 36 62 39 63 30 61 38 31 32 31 61 22 2c 22 64 |e6b9c0a8121a”,“d|
|000002c0| 64 6f 63 73 22 3a 7b 22 75 72 69 22 3a 22 2f 70 |docs”:{“uri”:“/p|
|000002d0| 6f 6f 6c 73 2f 64 65 66 61 75 6c 74 2f 62 75 63 |ools/default/buc|
|000002e0| 6b 65 74 73 2f 64 65 66 61 75 6c 74 2f 64 64 6f |kets/default/ddo|
|000002f0| 63 73 22 7d 2c 22 76 42 75 63 6b 65 74 53 65 72 |cs”},“vBucketSer|
|00000300| 76 65 72 4d 61 70 22 3a 7b 22 68 61 73 68 41 6c |verMap”:{“hashAl|
|00000310| 67 6f 72 69 74 68 6d 22 3a 22 43 52 43 22 2c 22 |gorithm”:“CRC”,“|
|00000320| 6e 75 6d 52 65 70 6c 69 63 61 73 22 3a 30 2c 22 |numReplicas”:0,“|
|00000330| 73 65 72 76 65 72 4c 69 73 74 22 3a 5b 22 24 48 |serverList”:[“$H|
|00000340| 4f 53 54 3a 31 31 32 31 30 22 5d 2c 22 76 42 75 |OST:11210”],“vBu|
|00000350| 63 6b 65 74 4d 61 70 22 3a 5b 5b 30 5d 2c 5b 30 |cketMap”:[[0],[0|
|00000360| 5d 2c 5b 30 5d 2c 5b 30 5d 2c 5b 30 5d 2c 5b 30 |],[0],[0],[0],[0|
… SKIP
|00001340| 5d 2c 5b 30 5d 2c 5b 30 5d 2c 5b 30 5d 2c 5b 30 |],[0],[0],[0],[0|
|00001350| 5d 2c 5b 30 5d 2c 5b 30 5d 5d 7d 2c 22 62 75 63 |],[0],[0]]},“buc|
|00001360| 6b 65 74 43 61 70 61 62 69 6c 69 74 69 65 73 56 |ketCapabilitiesV|
|00001370| 65 72 22 3a 22 22 2c 22 62 75 63 6b 65 74 43 61 |er”:“”,“bucketCa|
|00001380| 70 61 62 69 6c 69 74 69 65 73 22 3a 5b 22 63 62 |pabilities”:[“cb|
|00001390| 68 65 6c 6c 6f 22 2c 22 74 6f 75 63 68 22 2c 22 |hello”,“touch”,“|
|000013a0| 63 6f 75 63 68 61 70 69 22 2c 22 63 63 63 70 22 |couchapi”,“cccp”|
|000013b0| 2c 22 78 64 63 72 43 68 65 63 6b 70 6f 69 6e 74 |,“xdcrCheckpoint|
|000013c0| 69 6e 67 22 2c 22 6e 6f 64 65 73 45 78 74 22 2c |ing”,“nodesExt”,|
|000013d0| 22 64 63 70 22 5d 7d |“dcp”]} |
±-------±------------------------------------------------±---------------+
2016-10-12 18:01:09.150 [TRACE] AbstractGenericHandler::trace(65) - [localhost/127.0.0.1:11210][KeyValueEndpoint]: Started decoding of GetBucketConfigRequest{observable=rx.subjects.AsyncSubject@38e314be, bucket=‘default’}
2016-10-12 18:01:09.151 [TRACE] AbstractGenericHandler::trace(65) - [localhost/127.0.0.1:11210][KeyValueEndpoint]: Finished decoding of GetBucketConfigRequest{observable=rx.subjects.AsyncSubject@38e314be, bucket=‘default’}
2016-10-12 18:01:09.160 [DEBUG] ConfigurationProvider::debug(90) - New Bucket default config proposed.
2016-10-12 18:01:09.160 [TRACE] ConfigurationProvider::trace(60) - Proposed raw config is {“rev”:15,“name”:“default”,“uri”:“/pools/default/buckets/default?bucket_uuid=da4bf8398368f56d41ace6b9c0a8121a”,“streamingUri”:“/pools/default/bucketsStreaming/default?bucket_uuid=da4bf8398368f56d41ace6b9c0a8121a”,“nodes”:[{“couchApiBase”:“http://localhost:8092/default%2Bda4bf8398368f56d41ace6b9c0a8121a",“hostname”:“localhost:8091”,“ports”:{“proxy”:11211,“direct”:11210}}],“nodesExt”:[{“services”:{“mgmt”:8091,“indexAdmin”:9100,“indexScan”:9101,“indexHttp”:9102,“indexStreamInit”:9103,“indexStreamCatchup”:9104,“indexStreamMaint”:9105,“capi”:8092,“projector”:9999,“kv”:11210,“moxi”:11211,“n1ql”:8093},“thisNode”:true}],“nodeLocator”:“vbucket”,“uuid”:“da4bf8398368f56d41ace6b9c0a8121a”,“ddocs”:{“uri”:“/pools/default/buckets/default/ddocs”},“vBucketServerMap”:{“hashAlgorithm”:“CRC”,“numReplicas”:0,“serverList”:[“localhost:11210”],“vBucketMap”:[[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0]]},“bucketCapabilitiesVer”:“”,“bucketCapabilities”:[“cbhello”,“touch”,“couchapi”,“cccp”,“xdcrCheckpointing”,“nodesExt”,"dcp”]}
2016-10-12 18:01:09.168 [TRACE] ConfigurationProvider::trace(55) - Not applying new configuration, older rev ID.
2016-10-12 18:01:09.168 [DEBUG] CarrierRefresher::debug(90) - Completed refreshing config for bucket “default”

2

This is not a problem, and works as designed. We are proactively fetching a new configuration from the server every 10 seconds to make sure the client is fresh in terms of topology information.

The message is maybe a little misleading, all is well here and your system does not have any issues.

3

Thank you for the reply.
I noticed all the operations are working fine.
I just wanted everything under “MY” control and logs to be clean as well.

Is there a way to change the fetching time settings?

4

HI

I was just wondering if there was any update on this as to how i can increase the timeout in development to greater than 10 secs

5

@seamus.murphy there is the configPollInterval which you can tune on the environment :slight_smile:

6

Better to just create a custom logback to hide the Couchbase logs :slight_smile: