I'm doing some work when I came across this issue with Cassandra. It seems
that the session used to connect is expiring when it tries to discover new
nodes.
I'm using the Cassandra carbon component. From what I observed, reads and
writes does not seem to be affected with this.The stack trace is given
below:
[2011-04-18 16:38:45,468] INFO
{me.prettyprint.cassandra.connection.NodeAutoDiscoverService} - using
existing hosts [localhost(127.0.0.1):9160]
[2011-04-18 16:38:45,469] ERROR
{me.prettyprint.cassandra.connection.NodeAutoDiscoverService} - Downed Host
retry failed attempt to verify CassandraHost
InvalidRequestException(why:You have not logged in)
at
org.apache.cassandra.thrift.Cassandra$describe_keyspaces_result.read(Cassandra.java:18413)
at
org.apache.cassandra.thrift.Cassandra$Client.recv_describe_keyspaces(Cassandra.java:1034)
at
org.apache.cassandra.thrift.Cassandra$Client.describe_keyspaces(Cassandra.java:1010)
at
me.prettyprint.cassandra.connection.NodeAutoDiscoverService.discoverNodes(NodeAutoDiscoverService.java:81)
at
me.prettyprint.cassandra.connection.NodeAutoDiscoverService$QueryRing.run(NodeAutoDiscoverService.java:56)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at
java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
--
Regards,
Tharindu
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