ls /hbase/replication/rs/va-p-hbase-01-c,60020,1369249873379 [1] [zk: va-p-zookeeper-01-c:2181(CONNECTED) 2] ls /hbase/replication/rs/va-p-hbase-01-c,60020,1369249873379/1 []
I'm on hbase-0.94.2-cdh4.2.1 Thanks On Wed, May 22, 2013 at 11:40 PM, Varun Sharma <[email protected]> wrote: > Also what version of HBase are you running ? > > > On Wed, May 22, 2013 at 1:38 PM, Varun Sharma <[email protected]> wrote: > > > Basically, > > > > You had va-p-hbase-02 crash - that caused all the replication related > data > > in zookeeper to be moved to va-p-hbase-01 and have it take over for > > replicating 02's logs. Now each region server also maintains an in-memory > > state of whats in ZK, it seems like when you start up 01, its trying to > > replicate the 02 logs underneath but its failing to because that data is > > not in ZK. This is somewhat weird... > > > > Can you open the zookeepeer shell and do > > > > ls /hbase/replication/rs/va-p-hbase-01-c,60020,1369249873379 > > > > And give the output ? > > > > > > On Wed, May 22, 2013 at 1:27 PM, [email protected] < > > [email protected]> wrote: > > > >> Hi, > >> > >> This is bad ... and happened twice: I had my replication-slave cluster > >> offlined. I performed quite a massive Merge operation on it and after a > >> couple of hours it had finished and I returned it back online. At the > same > >> time, the replication-master RS machines crashed (see first crash > >> http://pastebin.com/1msNZ2tH) with the first exception being: > >> > >> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = > >> NoNode for > >> > >> > /hbase/replication/rs/va-p-hbase-01-c,60020,1369233253404/1-va-p-hbase-01-c,60020,1369042378287-va-p-hbase-02-c,60020,1369042377731/va-p-hbase-01-c%2C60020%2C1369042378287.1369220050719 > >> at > >> org.apache.zookeeper.KeeperException.create(KeeperException.java:111) > >> at > >> org.apache.zookeeper.KeeperException.create(KeeperException.java:51) > >> at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1266) > >> at > >> > >> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.setData(RecoverableZooKeeper.java:354) > >> at > >> org.apache.hadoop.hbase.zookeeper.ZKUtil.setData(ZKUtil.java:846) > >> at > >> org.apache.hadoop.hbase.zookeeper.ZKUtil.setData(ZKUtil.java:898) > >> at > >> org.apache.hadoop.hbase.zookeeper.ZKUtil.setData(ZKUtil.java:892) > >> at > >> > >> > org.apache.hadoop.hbase.replication.ReplicationZookeeper.writeReplicationStatus(ReplicationZookeeper.java:558) > >> at > >> > >> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSourceManager.logPositionAndCleanOldLogs(ReplicationSourceManager.java:154) > >> at > >> > >> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.shipEdits(ReplicationSource.java:638) > >> at > >> > >> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:387) > >> > >> Before restarting the crashed RS's, I have applied a 'stop_replication' > >> cmd. Then fired up the RS's again. They've started o.k. but once I've > hit > >> 'start_replication' they have crashed once again. The second crash log > >> http://pastebin.com/8Nb5epJJ has the same initial exception > >> (org.apache.zookeeper.KeeperException$NoNodeException: > >> KeeperErrorCode = NoNode). I've started the crash region servers again > >> without replication and currently all is well, but I need to start > >> replication asap. > >> > >> Does anyone have an idea what's going on and how can I solve it ? > >> > >> Thanks, > >> Amit > >> > > > > >
