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https://issues.apache.org/jira/browse/CASSANDRA-6294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-6294.
---------------------------------------

    Resolution: Duplicate

Fixed in CASSANDRA-6277

> AssertionError computing Merkle tree for repair
> -----------------------------------------------
>
>                 Key: CASSANDRA-6294
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6294
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jiri Horky
>             Fix For: 2.0.3
>
>
> Trying to run "nodetool repair" on our 2.0.0 cluster results in :
>  INFO [CompactionExecutor:1652] 2013-11-03 22:11:15,749 
> CompactionController.java (line 194) Compacting large row 
> fr/sha:cbe2392792d209e15e44ac29e906ffdd5fbf6eed8bab0d97d66e109ab2c5c56e 
> (103158300 bytes) incrementally
> ERROR [ValidationExecutor:8] 2013-11-03 22:11:51,918 Validator.java (line 
> 197) Failed creating a merkle tree for [repair 
> #5fed6f20-44cc-11e3-b77c-6b91d59c0c0e on fr/sha, 
> (2,21267647932558653966460912964485513216]], /10.10.10.12 (see log for 
> details)
> ERROR [ValidationExecutor:8] 2013-11-03 22:11:51,919 CassandraDaemon.java 
> (line 186) Exception in thread Thread[ValidationExecutor:8,1,main]
> java.lang.AssertionError
>         at 
> org.apache.cassandra.db.compaction.PrecompactedRow.update(PrecompactedRow.java:165)
>         at org.apache.cassandra.repair.Validator.rowHash(Validator.java:161)
>         at org.apache.cassandra.repair.Validator.add(Validator.java:153)
>         at 
> org.apache.cassandra.db.compaction.CompactionManager.doValidationCompaction(CompactionManager.java:669)
>         at 
> org.apache.cassandra.db.compaction.CompactionManager.access$600(CompactionManager.java:64)
>         at 
> org.apache.cassandra.db.compaction.CompactionManager$8.call(CompactionManager.java:395)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>         at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:722)



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