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https://issues.apache.org/jira/browse/CASSANDRA-11290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15206973#comment-15206973
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Carl Yeksigian commented on CASSANDRA-11290:
--------------------------------------------
This looks like a real bug, but I'm not sure what is causing this. We don't
allow a null lock in the {{locks}} array, instead following a path that
includes rescheduling, so it doesn't seem like we should get to the end and
have a null. The only other thing would be if the {{columnFamilyIds}} changed
during execution, so that {{size()}} was different, but other threads don't
have access to it, and we should also get a {{ConcurrentModificationException}}.
> dtest failure in
> materialized_views_test.TestMaterializedViewsConsistency.single_partition_consistent_reads_after_write_test
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-11290
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11290
> Project: Cassandra
> Issue Type: Bug
> Reporter: Russ Hatch
> Assignee: Carl Yeksigian
> Labels: dtest
> Fix For: 3.x
>
> Attachments: node1.log, node1_debug.log, node2.log, node2_debug.log,
> node3.log, node3_debug.log
>
>
> example failure:
> http://cassci.datastax.com/job/trunk_offheap_dtest/26/testReport/materialized_views_test/TestMaterializedViewsConsistency/single_partition_consistent_reads_after_write_test
> Failed on CassCI build trunk_offheap_dtest #26
> Failing infrequently but same error on at least two of those infrequent flaps:
> {noformat}
> Connection to 127.0.0.2 was closed
> {noformat}
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