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From Ivo Meißner <i...@overtronic.com>
Subject Re: Secondary index data gone after restart (1.1.1)
Date Tue, 26 Jun 2012 08:11:33 GMT
Hi,

but if the data must be converted, this is something that should be fixed inside cassandra…
Is this a bug, should I file a bug report?
Or is there some kind of setting I can change to make it work for now?

Maybe it is related to this issue, but this should have been fixed in 1.1.0:

https://issues.apache.org/jira/browse/CASSANDRA-3954

Thanks
Ivo


Am 26.06.2012 um 09:26 schrieb Fei Shan:

> Hi
> 
>    please refer JDK nio package's ByteBuffer, I don't think that ByteBuffer can be cast
from the BigInteger directly, 
> it seems you need make some conversion before put it into a ByteBuffer.
> 
> Thanks
> Fei
> 
> On Tue, Jun 26, 2012 at 12:07 AM, Ivo Meißner <info@overtronic.com> wrote:
> Hi,
> 
> I am running into some problems with secondary indexes that I am unable to track down.
When I restart the cassandra service, the secondary index data won't load and I get the following
error during startup: 
> 
> INFO 08:29:42,127 Opening /var/myproject/cassandra/data/mykeyspace/group_admin/mykeyspace-group_admin.group_admin_groupId_idx-hd-1
(20808 bytes)
> ERROR 08:29:42,159 Exception in thread Thread[SSTableBatchOpen:1,5,main]
> java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.nio.ByteBuffer
> 	at org.apache.cassandra.db.marshal.TimeUUIDType.compare(TimeUUIDType.java:37)
> 	at org.apache.cassandra.dht.LocalToken.compareTo(LocalToken.java:45)
> 	at org.apache.cassandra.db.DecoratedKey.compareTo(DecoratedKey.java:89)
> 	at org.apache.cassandra.db.DecoratedKey.compareTo(DecoratedKey.java:38)
> 	at java.util.TreeMap.getEntry(TreeMap.java:328)
> 	at java.util.TreeMap.containsKey(TreeMap.java:209)
> 	at java.util.TreeSet.contains(TreeSet.java:217)
> 	at org.apache.cassandra.io.sstable.SSTableReader.load(SSTableReader.java:396)
> 	at org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:187)
> 	at org.apache.cassandra.io.sstable.SSTableReader$1.run(SSTableReader.java:225)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:662)
> 
> When the service starts I can still select data from the column family, but not using
the secondary index. 
> After I execute "nodetool rebuild_index" the secondary index works fine again until the
next restart. 
> 
> The error only seems to occur on the column groupId (TimeUUIDType). The other index on
userId seems to work. 
> 
> I have the following column family definition: 
> 
> create column family group_admin with
>   comparator = UTF8Type and
>   key_validation_class = UTF8Type and
>   column_metadata = [
>     {column_name: id, validation_class: UTF8Type},
>     {column_name: added, validation_class: LongType},
>     {column_name: userId, validation_class: BytesType, index_type: KEYS},
>     {column_name: requestMessage, validation_class: UTF8Type},
>     {column_name: status, validation_class: LongType},
>     {column_name: groupId, validation_class: TimeUUIDType, index_type: KEYS}
>   ];
> 
> Thank you very much for your help!
> 
> Ivo
> 



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