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https://issues.apache.org/jira/browse/CASSANDRA-12633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15487236#comment-15487236
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Jeff Beck commented on CASSANDRA-12633:
---------------------------------------
Started at 2.1 but if it isn't critical enough for that I made a patch with it
starting at 2.2 as well. Let me know which is preferred and I can create
patches for the other branches.
> Assert Errors occurring with OutboundTcpConnection causes Cassandra to slowly
> stop functioning.
> -----------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-12633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12633
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jeff Beck
> Fix For: 2.1.16
>
> Attachments: 12633-2.1.txt, 12633-2.2-start.txt, 12633-2.2.txt
>
>
> Assert Errors occurring with OutboundTcpConnection causes Cassandra to slowly
> stop functioning.
> There is a possibility of assert errors in
> ByteBufferUtil.writeWithShortLength which can cause a stop to processing.
> There is already good error handling it just needs to catch Throwable instead
> of Exception at
> https://github.com/apache/cassandra/blob/c26bd91852cbf19d7dba9f62078f5da31b04dbe0/src/java/org/apache/cassandra/net/OutboundTcpConnection.java#L239
>
> An example of when this happens:
> {code}
> ERROR [MessagingService-Outgoing-/10.0.19.152] 2016-05-03 21:43:54,638
> CassandraDaemon.java:227 - Exception in thread
> Thread[MessagingService-Outgoing-/10.0.19.152,5,main]
> java.lang.AssertionError: 103265
> at
> org.apache.cassandra.utils.ByteBufferUtil.writeWithShortLength(ByteBufferUtil.java:290)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.composites.AbstractCType$Serializer.serialize(AbstractCType.java:392)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.composites.AbstractCType$Serializer.serialize(AbstractCType.java:381)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.filter.ColumnSlice$Serializer.serialize(ColumnSlice.java:271)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.filter.ColumnSlice$Serializer.serialize(ColumnSlice.java:259)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.filter.SliceQueryFilter$Serializer.serialize(SliceQueryFilter.java:503)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.filter.SliceQueryFilter$Serializer.serialize(SliceQueryFilter.java:490)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.SliceFromReadCommandSerializer.serialize(SliceFromReadCommand.java:168)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.ReadCommandSerializer.serialize(ReadCommand.java:143)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.db.ReadCommandSerializer.serialize(ReadCommand.java:132)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at org.apache.cassandra.net.MessageOut.serialize(MessageOut.java:121)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.net.OutboundTcpConnection.writeInternal(OutboundTcpConnection.java:330)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.net.OutboundTcpConnection.writeConnected(OutboundTcpConnection.java:282)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> at
> org.apache.cassandra.net.OutboundTcpConnection.run(OutboundTcpConnection.java:218)
> ~[apache-cassandra-2.1.12.jar:2.1.12]
> {code}
> The exact error happened when you sent a read request via cql for a
> clustering column value with more than 64k chars much like CASSANDRA-8280 but
> on reads. That exact error case is no longer reproducable in the latest
> versions of C* but in general it seems like it should still handle the
> possible asserts.
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