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https://issues.apache.org/jira/browse/CASSANDRA-9405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14547752#comment-14547752
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Sam Tunnicliffe commented on CASSANDRA-9405:
--------------------------------------------
+1 opening the keyspace before scrubbing is unnecessary & looks like a leftover
from some refactoring during CASSANDRA-8049 dev (and as such it won't affect
earlier versions).
> AssertionError: Data component is missing
> -----------------------------------------
>
> Key: CASSANDRA-9405
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9405
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Tyler Hobbs
> Assignee: Marcus Eriksson
> Fix For: 2.2.x
>
> Attachments:
> 0001-don-t-open-system-ks-before-scrubbing-the-data-direc.patch, node2.log
>
>
> In a [counter
> dtest|http://cassci.datastax.com/job/trunk_dtest/135/testReport/counter_tests/TestCounters/upgrade_test/]
> that drains and restarts nodes several times, we're occasionally seeing
> errors in the logs after restarting like the following:
> {noformat}
> ERROR [SSTableBatchOpen:2] 2015-05-15 16:54:41,087
> DebuggableThreadPoolExecutor.java:242 - Error in ThreadPoolExecutor
> java.lang.AssertionError: Data component is missing for
> sstable/tmp/dtest-r8mRyB/test/node2/data/system/sstable_activity-5a1ff267ace03f128563cfae6103c65e/la-5-big
> at
> org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:414)
> ~[main/:na]
> at
> org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:346)
> ~[main/:na]
> at
> org.apache.cassandra.io.sstable.format.SSTableReader$4.run(SSTableReader.java:476)
> ~[main/:na]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> ~[na:1.7.0_76]
> at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[na:1.7.0_76]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> ~[na:1.7.0_76]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [na:1.7.0_76]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_76]
> {noformat}
> Looking at the node's logs (attached), the {{sstable_activity}} table started
> a compaction just prior to the node being drained, and {{la-5-big}} is
> probably the partial compaction result.
> I set the fix version as 2.2, but the problem may exist in earlier C*
> versions.
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