Java client not reconnecting to couchabse after a restart

Java SDK
1

Hello,

We are using java 8 and java-client 2.6.0.
After restarting couchbase, the application was not able to save data into couchbase with the following issue:

com.couchbase.client.core.RequestCancelledException: Could not dispatch request, cancelling instead of retrying.
at com.couchbase.client.core.retry.RetryHelper.retryOrCancel(RetryHelper.java:51) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.service.PooledService.send(PooledService.java:341) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.node.CouchbaseNode.send(CouchbaseNode.java:211) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.node.locate.KeyValueLocator.locateForCouchbaseBucket(KeyValueLocator.java:140) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.node.locate.KeyValueLocator.locateAndDispatch(KeyValueLocator.java:90) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.RequestHandler.dispatchRequest(RequestHandler.java:249) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.RequestHandler.onEvent(RequestHandler.java:200) [core-io-1.5.5.jar:?]
at com.couchbase.client.core.RequestHandler.onEvent(RequestHandler.java:76) [core-io-1.5.5.jar:?]
at com.couchbase.client.deps.com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:137) [core-io-1.5.5.jar:?]
at com.couchbase.client.deps.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [core-io-1.5.5.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]

Any suggestion please?

2

Hi Zizou,

Does upgrading to the latest version of the client fix the problem?

Thanks,
David

3

Thanks David,

The issue is that this happen in a production environment and upgrading the sdk is not evident.
Also I wanted to add that we are deploying couchbase as a 3 nodes cluster if this can help?

Any thought please about the cause of this issue?

4

Hi Zizou,

I’m not sure if this is the cause, but Couchbase Java SDK 2.6.0 is intended for use with core-io 1.6.0; this stack trace shows core-io 1.5.5. Any idea why that old core-io is present?

Thanks,
David

5

Hi David,

Sorry I have shared the wrong version.
We are using java-client 2.5.5.

Did this change any thing?is this a know issue in this version?

Thanks