http://www.datastax.com/support-forums/topic/classcastexception-when-trying-to-extend-perrowsecondaryindex Software, Support, and Training for Apache Cassandra en-US Thu, 23 May 2013 16:55:00 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/classcastexception-when-trying-to-extend-perrowsecondaryindex#post-8283 Fri, 04 Jan 2013 15:16:01 +0000 Saurabh Kumar Singh 8283@http://www.datastax.com/support-forums/ <p>I am using Cassandra 1.2.0(latest)<br /> I have extended PerRowSecondaryIndex class to provide my own secondary index.<br /> It works fine as long as Cassandra node is running but when it restarts and I query data from Cassandra it throws exception:</p> <p>Caused by: java.lang.ClassCastException: java.nio.HeapByteBuffer cannot be cast to java.lang.Long<br /> at org.apache.cassandra.dht.LongToken.compareTo(LongToken.java:31)<br /> at org.apache.cassandra.db.DecoratedKey.compareTo(DecoratedKey.java:85)<br /> at org.apache.cassandra.db.DecoratedKey.compareTo(DecoratedKey.java:1)<br /> at org.apache.cassandra.utils.IntervalTree.comparePoints(IntervalTree.java:191)<br /> at org.apache.cassandra.utils.IntervalTree.access$2(IntervalTree.java:181)<br /> at org.apache.cassandra.utils.IntervalTree$IntervalNode.searchInternal(IntervalTree.java:293)<br /> at org.apache.cassandra.utils.IntervalTree.search(IntervalTree.java:140)<br /> at org.apache.cassandra.utils.IntervalTree.search(IntervalTree.java:146)<br /> at org.apache.cassandra.db.ColumnFamilyStore.markReferenced(ColumnFamilyStore.java:1300)<br /> at org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:228)<br /> at org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:65)<br /> at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1362)<br /> at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1222)<br /> at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1134)<br /> at org.apache.cassandra.db.index.keys.MyKeysSearcher.search(MyKeysSearcher.java:397)<br /> at org.apache.cassandra.db.index.SecondaryIndexManager.search(SecondaryIndexManager.java:560)<br /> at org.apache.cassandra.db.ColumnFamilyStore.search(ColumnFamilyStore.java:1459)<br /> at org.apache.cassandra.service.RangeSliceVerbHandler.executeLocally(RangeSliceVerbHandler.java:44)<br /> at org.apache.cassandra.service.StorageProxy$LocalRangeSliceRunnable.runMayThrow(StorageProxy.java:1072)<br /> at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1506)<br /> ... 3 more</p> <p>What might be the reason for this?<br /> I have seen similar issue(CASSANDRA-4289) with previous releases but that is marked as fixed in this version. So is this Cassandra issue or am I doing something wrong here? </p>