Division by zero on get_slice
-----------------------------
Key: CASSANDRA-4000
URL: https://issues.apache.org/jira/browse/CASSANDRA-4000
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.0.8
Environment: We start getting this exception after upgrading from
1.0.1 -> 1.0.8.
4 nodes cluster on Cassandra v1.0.8. RF = 3.
Hector v0.8.0-3.
We have a column family with String row keys and Long column keys.
Our WideEntityService is trying to get the first column in the range from 0 to
Long.MAX. It's a batch operation performed for every row in the CF (rows count
is approximately tens of thousands and each row contains from 0 to 1000
columns).
After processing each row we are removing some of the columns we have queried.
Also, at the same time we are writing in this CF in another threads but
somewhat less intensive.
An error rises approximately for a one of 100 rows.
Reporter: Sergey B
[05-Mar-2012 18:47:25,247] ERROR [http-8095-1 WideEntityServiceImpl.java:142] -
get: key1 - {type=RANGE, start=0, end=9223372036854775807, orderDesc=false,
limit=1}
me.prettyprint.hector.api.exceptions.HCassandraInternalException: Cassandra
encountered an internal error processing this request: TApplicationError type:
6 message:Internal error processing get_slice
at
me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:31)
at
me.prettyprint.cassandra.service.KeyspaceServiceImpl$7.execute(KeyspaceServiceImpl.java:285)
at
me.prettyprint.cassandra.service.KeyspaceServiceImpl$7.execute(KeyspaceServiceImpl.java:268)
at
me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:101)
at
me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:233)
at
me.prettyprint.cassandra.service.KeyspaceServiceImpl.operateWithFailover(KeyspaceServiceImpl.java:131)
at
me.prettyprint.cassandra.service.KeyspaceServiceImpl.getSlice(KeyspaceServiceImpl.java:289)
at
me.prettyprint.cassandra.model.thrift.ThriftSliceQuery$1.doInKeyspace(ThriftSliceQuery.java:53)
at
me.prettyprint.cassandra.model.thrift.ThriftSliceQuery$1.doInKeyspace(ThriftSliceQuery.java:49)
at
me.prettyprint.cassandra.model.KeyspaceOperationCallback.doInKeyspaceAndMeasure(KeyspaceOperationCallback.java:20)
at
me.prettyprint.cassandra.model.ExecutingKeyspace.doExecute(ExecutingKeyspace.java:85)
at
me.prettyprint.cassandra.model.thrift.ThriftSliceQuery.execute(ThriftSliceQuery.java:48)
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