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 <i...@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
>
