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https://issues.apache.org/jira/browse/CASSANDRA-7798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14102963#comment-14102963
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Jeremiah Jordan commented on CASSANDRA-7798:
--------------------------------------------
LGTM +1
> Empty clustering column not caught for CQL3 update to compact storage counter
> table
> -----------------------------------------------------------------------------------
>
> Key: CASSANDRA-7798
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7798
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Jeremiah Jordan
> Assignee: Aleksey Yeschenko
> Fix For: 1.2.19, 2.0.10, 2.1.0
>
> Attachments: 7798.txt
>
>
> If you update a compact storage counter column through cql3 you can set an
> empty column name, which is invalid. The server catches this for normal
> tables, but misses it for counters, and you end up with an assertion when the
> mutation gets serialized.
> {noformat}
> CREATE TABLE nullcoltest (
> key text,
> column1 text,
> value counter,
> PRIMARY KEY (key, column1)
> ) WITH COMPACT STORAGE;
> UPDATE nullcoltest SET value = value + 1 WHERE key = 'k1' AND column1 = '';
> {noformat}
> {noformat}
> ERROR [COMMIT-LOG-WRITER] 2014-08-19 16:11:12,179 CassandraDaemon.java (line
> 199) Exception in thread Thread[COMMIT-LOG-WRITER,5,main]
> java.lang.AssertionError
> at
> org.apache.cassandra.db.ColumnSerializer.serialize(ColumnSerializer.java:56)
> at
> org.apache.cassandra.db.ColumnFamilySerializer.serialize(ColumnFamilySerializer.java:77)
> at
> org.apache.cassandra.db.RowMutation$RowMutationSerializer.serialize(RowMutation.java:278)
> at
> org.apache.cassandra.db.commitlog.CommitLogSegment.write(CommitLogSegment.java:264)
> at
> org.apache.cassandra.db.commitlog.CommitLog$LogRecordAdder.run(CommitLog.java:357)
> at
> org.apache.cassandra.db.commitlog.PeriodicCommitLogExecutorService$1.runMayThrow(PeriodicCommitLogExecutorService.java:51)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at java.lang.Thread.run(Thread.java:744)
> {noformat}
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