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From Daniel Miranda <dan...@cobli.co>
Subject Assertions being hit on Cassandra 3.5 cluster (UnfilteredRowIterators.concat)
Date Wed, 22 Mar 2017 16:21:06 GMT
Greetings,

Recently I've started to see the an assertion (traceback follows at the end
of the message) causing exceptions in a 3-node Cassandra 3.5 cluster
(running on Ubuntu 14.04 on Amazon EC2). It seems to happen in all nodes.
Repairs run fine without indicating any errors.

I can't seem to find any information about it from someone else or any bug
reports.

Should I bother running an SSTable scrub? Is it a known issue that is fixed
in subsequent versions?

Thanks in advance,
Daniel

---
WARN  [SharedPool-Worker-1] 2017-03-16 18:54:35,587
AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread
Thread[SharedPool-Worker-1,5,main]: {}
java.lang.AssertionError: null
        at
org.apache.cassandra.db.rows.UnfilteredRowIterators.concat(UnfilteredRowIterators.java:157)
~[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.db.SinglePartitionReadCommand.getThroughCache(SinglePartitionReadCommand.java:420)
~[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.db.SinglePartitionReadCommand.queryStorage(SinglePartitionReadCommand.java:324)
~[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.db.ReadCommand.executeLocally(ReadCommand.java:366)
~[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1797)
~[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2466)
~[apache-cassandra-3.5.jar:3.5]
        at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
~[na:1.8.0_111]
        at
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
~[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:136)
[apache-cassandra-3.5.jar:3.5]
        at
org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
[apache-cassandra-3.5.jar:3.5]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]
-- 
*Daniel Miranda*

DevOps Engineering Intern
(11) 991959845
www.cobli.co

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