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Date: Fri, 29 Jun 2012 10:28:53 +0200
From: Thierry Templier <thierry.templier@restlet.com>
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To: user@cassandra.apache.org
Subject: ClassCastException during Cassandra server startup
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Hello,

When I start the Cassandra server, some exceptions occur:

INFO 10:22:16,014 reading saved cache 
/var/lib/cassandra/saved_caches/apispark-CellMessage-KeyCache
  INFO 10:22:16,016 Opening 
/var/lib/cassandra/data/apispark/CellMessage/apispark-CellMessage-hd-2 
(498 bytes)
  INFO 10:22:16,016 Opening 
/var/lib/cassandra/data/apispark/CellMessage/apispark-CellMessage-hd-1 
(635 bytes)
  INFO 10:22:16,041 Creating new index : 
ColumnDefinition{name=76657273696f6e, 
validator=org.apache.cassandra.db.marshal.UTF8Type, index_type=KEYS, 
index_name='cellmessage_version'}
  INFO 10:22:16,045 reading saved cache 
/var/lib/cassandra/saved_caches/apispark-CellMessage.cellmessage_version-KeyCache
  INFO 10:22:16,066 Opening 
/var/lib/cassandra/data/apispark/CellMessage/apispark-CellMessage.cellmessage_version-hd-2 
(349 bytes)
  INFO 10:22:16,066 Opening 
/var/lib/cassandra/data/apispark/CellMessage/apispark-CellMessage.cellmessage_version-hd-1 
(401 bytes)
ERROR 10:22:16,068 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.UTF8Type.compare(UTF8Type.java:27)
     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:345)
     at java.util.TreeMap.containsKey(TreeMap.java:226)
     at java.util.TreeSet.contains(TreeSet.java:234)
     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:471)
     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
     at java.util.concurrent.FutureTask.run(FutureTask.java:166)
     at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
     at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
     at java.lang.Thread.run(Thread.java:636)
ERROR 10:22:16,071 Exception in thread Thread[SSTableBatchOpen:2,5,main]
java.lang.ClassCastException: java.math.BigInteger cannot be cast to 
java.nio.ByteBuffer
     at org.apache.cassandra.db.marshal.UTF8Type.compare(UTF8Type.java:27)
     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:345)
     at java.util.TreeMap.containsKey(TreeMap.java:226)
     at java.util.TreeSet.contains(TreeSet.java:234)
     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:471)
     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
     at java.util.concurrent.FutureTask.run(FutureTask.java:166)
     at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
     at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
     at java.lang.Thread.run(Thread.java:636)

Here is the definition of the related table CellMessage:

CREATE TABLE CellMessage (
   id text PRIMARY KEY,
   "type" text,
   version text,
   content text,
   title text,
   generated text,
   date text
) WITH
   comment='' AND
   comparator=text AND
   read_repair_chance=0.100000 AND
   gc_grace_seconds=864000 AND
   default_validation=text AND
   min_compaction_threshold=4 AND
   max_compaction_threshold=32 AND
   replicate_on_write='true' AND
   compaction_strategy_class='SizeTieredCompactionStrategy' AND
   compression_parameters:sstable_compression='SnappyCompressor';

CREATE INDEX cellmessage_version ON CellMessage (version);

Such errors occur for most tables I defined...

Thanks very much for your help!
Thierry