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From "Sergey B (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4000) Division by zero on get_slice
Date Mon, 05 Mar 2012 15:47:56 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey B updated CASSANDRA-4000:
--------------------------------

    Description: 
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.


Exception itself:
[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)

  was:
[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)

    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.

  was:
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.

    
> 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.
>            Reporter: Sergey B
>
> 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.
> Exception itself:
> [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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