Thanks robert, For info if it helps to fix the bug i'm starting the downgrade, i restart all the node and do a repair and there are a lot of error like this :
EERROR [ValidationExecutor:2] 2013-10-23 08:39:27,558 Validator.java (line 242) Failed creating a merkle tree for [repair #9f9b7fc0-3bbe-11e3-a220-b18f7c69b044 on ks01/messages, (8746393670077301406,8763948586274310360]], /172.31.38.135 (see log for details) ERROR [ValidationExecutor:2] 2013-10-23 08:39:27,558 CassandraDaemon.java (line 185) Exception in thread Thread[ValidationExecutor:2,1,main] java.lang.AssertionError at org.apache.cassandra.db.compaction.PrecompactedRow.update(PrecompactedRow.java:171) at org.apache.cassandra.repair.Validator.rowHash(Validator.java:198) at org.apache.cassandra.repair.Validator.add(Validator.java:151) at org.apache.cassandra.db.compaction.CompactionManager.doValidationCompaction(CompactionManager.java:798) at org.apache.cassandra.db.compaction.CompactionManager.access$600(CompactionManager.java:60) at org.apache.cassandra.db.compaction.CompactionManager$8.call(CompactionManager.java:395) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) And the repair stop after this error : ERROR [FlushWriter:9] 2013-10-23 08:39:32,979 CassandraDaemon.java (line 185) Exception in thread Thread[FlushWriter:9,5,main] java.lang.AssertionError at org.apache.cassandra.io.sstable.SSTableWriter.rawAppend(SSTableWriter.java:198) at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:186) at org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:358) at org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:317) at org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48) at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) 2013/10/22 Robert Coli <rc...@eventbrite.com> > On Mon, Oct 21, 2013 at 11:57 PM, Kais Ahmed <k...@neteck-fr.com> wrote: > >> I will try to create a new cluster 1.2 and copy data, can you tell me >> please the best pratice to do this, do i have to use sstable2json / >> json2sstable or other method. >> > > Unfortunately to downgrade versions you are going to need to use a method > like sstable2json/json2sstable. > > Other bulkload options, which mostly don't apply in the downgrade case, > here : > > http://www.palominodb.com/blog/2012/09/25/bulk-loading-options-cassandra > > =Rob >