Thank you for the pointer Michael, I'll try to investigate if this is the same bug I am seeing.
I am afraid it might not be, since I'm observing the error periodically, not just during compactions, and the traceback seems different. Regards, Daniel On Wed, Mar 22, 2017 at 1:27 PM Michael Shuler <mich...@pbandjelly.org> wrote: Possibly https://issues.apache.org/jira/browse/CASSANDRA-12336, which shows fixed in 3.0.9, 3.8. There are a couple related bug reports listed on there, which you might investigate, as well. -- Kind regards, Michael On 03/22/2017 11:21 AM, Daniel Miranda wrote: > 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 <http://www.cobli.co/>