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From Ran Tavory <ran...@gmail.com>
Subject com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query
Date Sun, 06 Oct 2013 16:35:20 GMT
Hi all, when using the java-driver I see this error on the client, for
reads (as well as for writes).
Many of the ops succeed, however I do see a significant amount of errors.

com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra
timeout during write query at consistency ONE (1 replica were required but
only 0 acknowledged the write)
at
com.datastax.driver.core.ResultSetFuture.convertException(ResultSetFuture.java:243)
 at
com.datastax.driver.core.ResultSetFuture$ResponseCallback.onSet(ResultSetFuture.java:119)
at
com.datastax.driver.core.RequestHandler.setFinalResult(RequestHandler.java:202)
 at com.datastax.driver.core.RequestHandler.onSet(RequestHandler.java:331)
at
com.datastax.driver.core.Connection$Dispatcher.messageReceived(Connection.java:484)
 at
org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)

The cluster itself isn't working very hard and seems to be in good shape...
CPU Load is around 0.1, IO wait is below 1%, all hosts are up, not flapping
of anything and the logs don't indicate any special GC activity...


So I'm a bit puzzled as to where to look next. Any hints?...

-- 
/Ran
http://tavory.com

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