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From "Jacob, Arun" <Arun.Ja...@disney.com>
Subject After deleting some data from the cluster under Solandra, we keep seeing this assertion.
Date Sat, 12 Nov 2011 01:16:02 GMT
After removing some data from Solandra via a Solr query, we are getting DecoratedKey assertions.

Our setup:
latest version of Solandra (I think it supports 0.8.6, please correct if wrong)

3 solandra nodes, with replication set to 2 and sharding set to 3.

No systems are currently running (ingest or read) other than a simple


http://tn7cldsolandra01/solandra/schema/<http://tn7cldsolandra01/solandra/schema/WDPRO-NGELOG-DEV>myschemaquery.

The delete command I ran was:

http://tn7cldsolandra01/solandra/myschema/update<http://tn7cldsolandra01/solandra/WDPRO-NGELOG-DEV/update>
 -H”Content-Type: text/xml” –data-binary “<delete><query>time:[0 TO 1318143600000]
</query></delete>

This is what’s getting dumped into one node (solandra01).   I’ve ran nodetool scrub and
nodetool –repair on this node and nodetool –repair on our solandra02 box (solandra03 is
still doing the nodetool –repair).

ERROR [ReadStage:3709] 2011-11-11 16:54:06,185 AbstractCassandraDaemon.java (line 139) Fatal
exception in thread Thread[ReadStage:3709,5,main]
java.lang.AssertionError: DecoratedKey(144225997531208877267913204104447190682, 44434c4f55442d52414e44592d444556)
!= DecoratedKey(144225997531208877267913204104447190682, 313434323235393937353331323038383737323637393133323034313034343437313930363832efbfbf736861726473)
in /data/dcloud-querysvc/data/L/SI-g-94-Data.db
        at org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:59)
        at org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:66)
        at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:80)
        at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1407)
        at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1304)
        at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1261)
        at org.apache.cassandra.db.Table.getRow(Table.java:385)
        at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:61)
        at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:668)
        at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)

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