Cassandra throws Exceptions at startup when using TTL in SuperColumns
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Key: CASSANDRA-1130
URL: https://issues.apache.org/jira/browse/CASSANDRA-1130
Project: Cassandra
Issue Type: Bug
Components: Core
Reporter: Jignesh Dhruv
Priority: Critical
Hello,
I am trying to use TTL (timeToLive) feature in SuperColumns.
My usecase is:
- I have a SuperColumn and 3 subcolumns.
- I try to expire data after 60 seconds.
While Cassandra is up and running, I am successfully able to push and read data
without any problems. Data compaction and all occurs fine. After inserting say
about 100000 records, I stop Cassandra while data is still coming.
On startup Cassandra throws an exception and won't start up. (This happens 1 in
every 3 times). Exception varies like:
- EOFException while reading data
- negative value encountered exception
- Heap Space Exception
Cassandra simply won't start up.
Again I get this problem only when I use TTL with SuperColumns. There are no
issues with using TTL with regular Columns.
I tried to diagnose the problem and it seems to happen on startup when it sees
a Column that is marked Deleted and its trying to read data. Its off by some
bytes and hence all these exceptions.
Caused by: java.io.IOException: Corrupt (negative) value length encountered
at
org.apache.cassandra.utils.FBUtilities.readByteArray(FBUtilities.java:317)
at
org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:84)
at
org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:336)
at
org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:285)
at
org.apache.cassandra.db.filter.SSTableSliceIterator$ColumnGroupReader.getNextBlock(SSTableSliceIterator.java:235)
at
org.apache.cassandra.db.filter.SSTableSliceIterator$ColumnGroupReader.pollColumn(SSTableSliceIterator.java:195)
... 18 more
Let me know if you need more information.
Thanks,
Jignesh
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