[jira] [Commented] (CASSANDRA-8332) Null pointer after droping keyspace

["Chris Lohfink (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-8332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14230991#comment-14230991 ] 

Chris Lohfink commented on CASSANDRA-8332:
------------------------------------------

+1

> Null pointer after droping keyspace
> -----------------------------------
>
>                 Key: CASSANDRA-8332
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8332
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Chris Lohfink
>            Assignee: T Jake Luciani
>            Priority: Minor
>             Fix For: 2.0.12, 2.1.3
>
>         Attachments: 8332.txt, CassandraStressTest-8332.zip
>
>
> After dropping keyspace, sometimes I see this in logs:
> {code}
> ERROR 03:40:29 Exception in thread Thread[CompactionExecutor:2,1,main]
> java.lang.AssertionError: null
> 	at org.apache.cassandra.io.compress.CompressionParameters.setLiveMetadata(CompressionParameters.java:108) ~[main/:na]
> 	at org.apache.cassandra.io.sstable.SSTableReader.getCompressionMetadata(SSTableReader.java:1142) ~[main/:na]
> 	at org.apache.cassandra.io.sstable.SSTableReader.openDataReader(SSTableReader.java:1896) ~[main/:na]
> 	at org.apache.cassandra.io.sstable.SSTableScanner.<init>(SSTableScanner.java:68) ~[main/:na]
> 	at org.apache.cassandra.io.sstable.SSTableReader.getScanner(SSTableReader.java:1681) ~[main/:na]
> 	at org.apache.cassandra.io.sstable.SSTableReader.getScanner(SSTableReader.java:1693) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getScanners(LeveledCompactionStrategy.java:181) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.WrappingCompactionStrategy.getScanners(WrappingCompactionStrategy.java:320) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.getScanners(AbstractCompactionStrategy.java:340) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:151) ~[main/:na]
> 	at org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48) ~[main/:na]
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:75) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59) ~[main/:na]
> 	at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:233) ~[main/:na]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[na:1.7.0_71]
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[na:1.7.0_71]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_71]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_71]
> 	at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
> {code}
> Minor issue since doesn't really affect anything, but the error makes it look like somethings wrong.  Seen on 2.1 branch (1b21aef8152d96a180e75f2fcc5afad9ded6c595), not sure how far back (may be post 2.1.2).



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