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https://issues.apache.org/jira/browse/CASSANDRA-12590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15695571#comment-15695571
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Sam Tunnicliffe commented on CASSANDRA-12590:
---------------------------------------------
[~cam1982], I was hoping we'd be able to repro before committing, if not with
a test at least with some manually reproducible steps. I spoke offline with
[~KurtG] a week or 2 back & shared my attempts using byteman, but I guess he's
not been able to get any further than I did. Obviously, if we can't repro but
empirically the fix looks good, then we shouldn't block it for lack of a unit
test.
In the meantime though, take a look at [this
comment|https://issues.apache.org/jira/browse/CASSANDRA-12651?focusedCommentId=15674407&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15674407]
on CASSANDRA-12651. Basically, I think we'll end up committing the fix for
this there (but actually your original suggestion, with the fix in
{{LocalToken}}). That ticket is just waiting review, and I expect to commit it
soon.
The only question is to which version. CASSANDRA-12651 relates to one of the
failing tests that drew a -1 on the most recent 3.10 vote, so I haven't pushed
harder to commit it until we make a call on the 3.10 release. Hopefully, that
should get resolved in the next few days.
> Segfault reading secondary index
> --------------------------------
>
> Key: CASSANDRA-12590
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12590
> Project: Cassandra
> Issue Type: Bug
> Components: Local Write-Read Paths
> Environment: Occurs on Cassandra 3.5 and 3.7
> Reporter: Cameron Zemek
> Assignee: Sam Tunnicliffe
>
> Getting segfaults when reading secondary index as follows:
> {code}
> J 9272 C2
> org.apache.cassandra.dht.LocalPartitioner$LocalToken.compareTo(Lorg/apache/cassandra/dht/Token;)I
> (53 bytes) @ 0x00007fd7354749b7 [0x00007fd735474840+0x177]
> J 5661 C2 org.apache.cassandra.db.DecoratedKey.compareTo(Ljava/lang/Object;)I
> (9 bytes) @ 0x00007fd7351b35b8 [0x00007fd7351b3440+0x178]
> J 14205 C2
> java.util.concurrent.ConcurrentSkipListMap.doGet(Ljava/lang/Object;)Ljava/lang/Object;
> (142 bytes) @ 0x00007fd736404dd8 [0x00007fd736404cc0+0x118]
> J 17764 C2
> org.apache.cassandra.db.SinglePartitionReadCommand.queryMemtableAndDiskInternal(Lorg/apache/cassandra/db/ColumnFamilyStore;)Lorg/apache/cassandra/db/rows/UnfilteredRowIterator;
> (635 bytes) @ 0x00007fd736e09638 [0x00007fd736e08720+0xf18]
> J 17808 C2
> org.apache.cassandra.index.internal.CassandraIndexSearcher.search(Lorg/apache/cassandra/db/ReadExecutionController;)Lorg/apache/cassandra/db/partitions/UnfilteredPartitionIterator;
> (68 bytes) @ 0x00007fd736e01a48 [0x00007fd736e012a0+0x7a8]
> J 14217 C2
> org.apache.cassandra.db.ReadCommand.executeLocally(Lorg/apache/cassandra/db/ReadExecutionController;)Lorg/apache/cassandra/db/partitions/UnfilteredPartitionIterator;
> (219 bytes) @ 0x00007fd736417c1c [0x00007fd736416fa0+0xc7c]
> J 14585 C2
> org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow()V
> (337 bytes) @ 0x00007fd736541e6c [0x00007fd736541d60+0x10c]
> J 14584 C2 org.apache.cassandra.service.StorageProxy$DroppableRunnable.run()V
> (48 bytes) @ 0x00007fd7357957b4 [0x00007fd735795760+0x54]
> J 9648% C2 org.apache.cassandra.concurrent.SEPWorker.run()V (253 bytes) @
> 0x00007fd735938d8c [0x00007fd7359356e0+0x36ac]
> {code}
> Which I have translated to the codepath:
> org.apache.cassandra.dht.LocalPartitioner (Line 139)
> org.apache.cassandra.db.DecoratedKey (Line 85)
> java.util.concurrent.ConcurrentSkipListMap (Line 794)
> org.apache.cassandra.db.SinglePartitionReadCommand (Line 498)
> org.apache.cassandra.index.internal.CassandraIndexSearcher (Line 60)
> org.apache.cassandra.db.ReadCommand (Line 367)
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