Couchbase Q&A

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zbintliff's picture
Asked 3 months 3 weeks ago
Latest activity 3 months 1 week ago

set(key, doc, persistTo) sychronous or asychronous?

We are doing some proof of concepts and are testing different parts of couchbase. We have about 2.9 million documents that we are loading. I noticed that when I switched from set(key, value) to set(key, value, PersistTo.ONE) the performance plummetted (normal run time was 5 minutes now its...

flo_vonderuni's picture
Asked 3 months 3 weeks ago

Node.js, Sync Gateway, CBL: best way to transfer small files

Hello,

I'm trying to transfer some image files of thumbnails (one per CB document) to the iOS app that I'm writing.

I'm entering documents into my main bucket using the Node.js API, and the data gets synced to the iOS devices using the CB Sync Gateway and CBL.

I've seen that...

byrnoth's picture
Asked 3 months 3 weeks ago

How can I find out when is Couchbase reindexing a design document?

Hi all.

We're trying to find out how many times Couchbase indexes a certain design document, when does it exactly index and how many time does the server needs to index.
We have generated logs via cbcollect_info and we have found some information, e.g. ns_server.couchdb.log...

jakobbg's picture
Asked 3 months 3 weeks ago
Latest activity 3 months 1 week ago

Newly installed CE Couchbase 2.2 crashes on startup (W7 Enterprise x64)

Did a fresh install of Couchbase v2.2 CE on my W7 Enterprise ed. x64 devbox (default path), and no web frontend gets started. Port 8091 not shown using netstat.

Uninstalled and reinstalled into c:/Couchbase/Server, and server popped up.

Is this still an Erlang filename/space bug?...

nt.tung's picture
Asked 3 months 3 weeks ago
Latest activity 3 months 3 weeks ago

How to write a map reduce, query with a specific range datetime and the group by clause

I have example data

...
{"provider": 1, "value": 1, "created_time": "2014-02-11 04:33:45"}
{"provider": 1, "value": 2, "created_time": "2014-02-12 04:33:45"}
{"provider": 2, "value": 3, "created_time": "2014-02-13 04:33:45"}
{"provider": 2, "value": 2, "...

Alex-sf's picture
Asked 3 months 3 weeks ago
Latest activity 3 months 3 weeks ago

RAM requirements for small dataset

I'd like to use couchbase for a number of the reasons, but the memory recommendations seem quite high. If I have a 500MB dataset with a fifth of that the working set, is it really necessary to have 16GB nodes? Plus another 2GB for XDCR? Or are those just sort of baseline numbers?

kamal2222ahmed's picture
Asked 3 months 4 weeks ago

erlang server crashed when running couchbase community server edition on centos 6.4 64 bit Virtual Machine

installed: 2.2.0-837-rel couchbase server
[product]
title = Couchbase Server
version = 2.2.0-837-rel
license = community

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg1-lv_root
5.0G 891M 3.9G...

alexo's picture
Asked 3 months 4 weeks ago
Latest activity 3 months 3 weeks ago

Java client not aware about failed over node

We are using the latest version of couchbase-java-client (1.4.0-dp2).
Assume the following scenario:
- We have a cluster with 2 nodes.
- Client is able to read & write documents to a bucket.
- create a couple of documents (one is active on node1, the other is active...

313180's picture
Asked 3 months 4 weeks ago
Latest activity 3 months 1 week ago

lost a lot of data where a node crash

my Test as follows:
I have start 4 nodes for the coucbase cluster.
1.start a client (1.4.0) to set 100 0000 items to the couchbase!
2.before the client add completed I kill one of the node.
3.and the client logs as "Discarding partially completed op: Cmd: 2 Opaque:...

jnordberg's picture
Asked 3 months 4 weeks ago
Latest activity 3 months 4 weeks ago

Timeout errors

I'm trying to connect to a remote couchbase server, the connection callback fires ok. But if i try to get a key i get a [Error: Operation timed out] code: 23 error and if i try to query a view i get a...

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