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https://issues.apache.org/jira/browse/CASSANDRA-9935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15197339#comment-15197339
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Paulo Motta commented on CASSANDRA-9935:
----------------------------------------

That's strange, did you take the node offline when running scrub? If not, it 
could be that the faulty sstable was still loaded so when the node was 
restarted only the correct sstable was loaded.

Is the problem fixed now?

> Repair fails with RuntimeException
> ----------------------------------
>
>                 Key: CASSANDRA-9935
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9935
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: C* 2.1.8, Debian Wheezy
>            Reporter: mlowicki
>            Assignee: Yuki Morishita
>             Fix For: 2.1.x
>
>         Attachments: db1.sync.lati.osa.cassandra.log, 
> db5.sync.lati.osa.cassandra.log, system.log.10.210.3.117, 
> system.log.10.210.3.221, system.log.10.210.3.230
>
>
> We had problems with slow repair in 2.1.7 (CASSANDRA-9702) but after upgrade 
> to 2.1.8 it started to work faster but now it fails with:
> {code}
> ...
> [2015-07-29 20:44:03,956] Repair session 23a811b0-3632-11e5-a93e-4963524a8bde 
> for range (-5474076923322749342,-5468600594078911162] finished
> [2015-07-29 20:44:03,957] Repair session 336f8740-3632-11e5-a93e-4963524a8bde 
> for range (-8631877858109464676,-8624040066373718932] finished
> [2015-07-29 20:44:03,957] Repair session 4ccd8430-3632-11e5-a93e-4963524a8bde 
> for range (-5372806541854279315,-5369354119480076785] finished
> [2015-07-29 20:44:03,957] Repair session 59f129f0-3632-11e5-a93e-4963524a8bde 
> for range (8166489034383821955,8168408930184216281] finished
> [2015-07-29 20:44:03,957] Repair session 6ae7a9a0-3632-11e5-a93e-4963524a8bde 
> for range (6084602890817326921,6088328703025510057] finished
> [2015-07-29 20:44:03,957] Repair session 8938e4a0-3632-11e5-a93e-4963524a8bde 
> for range (-781874602493000830,-781745173070807746] finished
> [2015-07-29 20:44:03,957] Repair command #4 finished
> error: nodetool failed, check server logs
> -- StackTrace --
> java.lang.RuntimeException: nodetool failed, check server logs
>         at 
> org.apache.cassandra.tools.NodeTool$NodeToolCmd.run(NodeTool.java:290)
>         at org.apache.cassandra.tools.NodeTool.main(NodeTool.java:202)
> {code}
> After running:
> {code}
> nodetool repair --partitioner-range --parallel --in-local-dc sync
> {code}
> Last records in logs regarding repair are:
> {code}
> INFO  [Thread-173887] 2015-07-29 20:44:03,956 StorageService.java:2952 - 
> Repair session 09ff9e40-3632-11e5-a93e-4963524a8bde for range 
> (-7695808664784761779,-7693529816291585568] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,956 StorageService.java:2952 - 
> Repair session 17d8d860-3632-11e5-a93e-4963524a8bde for range 
> (8063716953988492222,8065203836608925992] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,956 StorageService.java:2952 - 
> Repair session 23a811b0-3632-11e5-a93e-4963524a8bde for range 
> (-5474076923322749342,-5468600594078911162] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,956 StorageService.java:2952 - 
> Repair session 336f8740-3632-11e5-a93e-4963524a8bde for range 
> (-8631877858109464676,-8624040066373718932] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,957 StorageService.java:2952 - 
> Repair session 4ccd8430-3632-11e5-a93e-4963524a8bde for range 
> (-5372806541854279315,-5369354119480076785] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,957 StorageService.java:2952 - 
> Repair session 59f129f0-3632-11e5-a93e-4963524a8bde for range 
> (8166489034383821955,8168408930184216281] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,957 StorageService.java:2952 - 
> Repair session 6ae7a9a0-3632-11e5-a93e-4963524a8bde for range 
> (6084602890817326921,6088328703025510057] finished
> INFO  [Thread-173887] 2015-07-29 20:44:03,957 StorageService.java:2952 - 
> Repair session 8938e4a0-3632-11e5-a93e-4963524a8bde for range 
> (-781874602493000830,-781745173070807746] finished
> {code}
> but a bit above I see (at least two times in attached log):
> {code}
> ERROR [Thread-173887] 2015-07-29 20:44:03,853 StorageService.java:2959 - 
> Repair session 1b07ea50-3608-11e5-a93e-4963524a8bde for range 
> (5765414319217852786,5781018794516851576] failed with error 
> org.apache.cassandra.exceptions.RepairException: [repair 
> #1b07ea50-3608-11e5-a93e-4963524a8bde on sync/entity_by_id2, 
> (5765414319217852786,5781018794516851576]] Validation failed in /10.195.15.162
> java.util.concurrent.ExecutionException: java.lang.RuntimeException: 
> org.apache.cassandra.exceptions.RepairException: [repair 
> #1b07ea50-3608-11e5-a93e-4963524a8bde on sync/entity_by_id2, 
> (5765414319217852786,5781018794516851576]] Validation failed in /10.195.15.162
>         at java.util.concurrent.FutureTask.report(FutureTask.java:122) 
> [na:1.7.0_80]
>         at java.util.concurrent.FutureTask.get(FutureTask.java:188) 
> [na:1.7.0_80]
>         at 
> org.apache.cassandra.service.StorageService$4.runMayThrow(StorageService.java:2950)
>  ~[apache-cassandra-2.1.8.jar:2.1.8]
>         at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) 
> [apache-cassandra-2.1.8.jar:2.1.8]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
> [na:1.7.0_80]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
> [na:1.7.0_80]
>         at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80]
> Caused by: java.lang.RuntimeException: 
> org.apache.cassandra.exceptions.RepairException: [repair 
> #1b07ea50-3608-11e5-a93e-4963524a8bde on sync/entity_by_id2, 
> (5765414319217852786,5781018794516851576]] Validation failed in /10.195.15.162
>         at com.google.common.base.Throwables.propagate(Throwables.java:160) 
> ~[guava-16.0.jar:na]
>         at 
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:32) 
> [apache-cassandra-2.1.8.jar:2.1.8]
>         at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 
> [na:1.7.0_80]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
> [na:1.7.0_80]
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>  ~[na:1.7.0_80]
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>  ~[na:1.7.0_80]        ... 1 common frames omitted
> Caused by: org.apache.cassandra.exceptions.RepairException: [repair 
> #1b07ea50-3608-11e5-a93e-4963524a8bde on sync/entity_by_id2, 
> (5765414319217852786,5781018794516851576]] Validation failed in /10.195.15.162
>         at 
> org.apache.cassandra.repair.RepairSession.validationComplete(RepairSession.java:166)
>  ~[apache-cassandra-2.1.8.jar:2.1.8]        at 
> org.apache.cassandra.service.ActiveRepairService.handleMessage(ActiveRepairService.java:406)
>  ~[apache-cassandra-2.1.8.jar:2.1.8]
>         at 
> org.apache.cassandra.repair.RepairMessageVerbHandler.doVerb(RepairMessageVerbHandler.java:134)
>  ~[apache-cassandra-2.1.8.jar:2.1.8]        at 
> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:62) 
> ~[apache-cassandra-2.1.8.jar:2.1.8]
>         ... 3 common frames omittedINFO  [Thread-173887] 2015-07-29 
> 20:44:03,854 StorageService.java:2952 - Repair session 
> 846d9300-3608-11e5-a93e-4963524a8bde for range (-6705935
> 742755245856,-6704072966568763453] finished
> {code}



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