Can you start the master as well (besides region servers)?
On Thu, Aug 8, 2013 at 2:41 PM, oc tsdb <[email protected]> wrote: > I am using hbase-0.92 > > Region server was not running on any of the nodes. > > Restarted the cluster. It started region server on all nodes except > HMaster but still unresponsive. > > processes running on master are > TSDMain > HMaster > SecondaryNameNode > NameNode > JobTracker > HQuorumPeer > > processes running on all other nodes are > DataNode > TaskTracker > RegionServer > TSDMain > > This time, I see the error messages in the attached log. > > Could you please suggest if I can recover/restore the data and get the > cluster up. > > Thanks & Regards, > VSR > > > > On Thu, Aug 8, 2013 at 1:40 PM, Ted Yu <[email protected]> wrote: > >> Can you tell us the version of HBase you're using ? >> >> Do you find something in region server logs on the 4 remaining nodes ? >> >> Cheers >> >> On Thu, Aug 8, 2013 at 1:36 PM, oc tsdb <[email protected]> wrote: >> >> > Hi, >> > >> > I am running a cluster with 6 nodes; >> > Two of 6 nodes in my cluster went down (due to other application >> failure) >> > and came back after some time (had to do a power reboot). >> > When these nodes are back I use to get "WARN >> org.apache.hadoop.DFSClient: >> > Failed to connect to , add to deadnodes and continue". >> > Now these messages are stopped and getting continuous debug message as >> > follows. >> > >> > 2013-08-08 12:57:36,628 DEBUG org.apache.hadoop.hbase. >> > master.SplitLogManager: total tasks = 14 unassigned = 14 >> > 2013-08-08 12:57:37,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-3.corp.oc.com%2C60020%2C1375466447768-splitting%2Fmb-3.corp.oc.com >> > %252C60020%252C1375466447768.1375631802971 >> > ver = 0 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-6.corp.oc.com%2C60020%2C1375466460755-splitting%2Fmb-6.corp.oc.com >> > %252C60020%252C1375466460755.1375623787557 >> > ver = 0 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-6.corp.oc.com%2C60020%2C1375466460755-splitting%2Fmb-6.corp.oc.com >> > %252C60020%252C1375466460755.1375619231059 >> > ver = 3 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-2.corp.oc.com%2C60020%2C1375466479427-splitting%2Fmb-2.corp.oc.com >> > %252C60020%252C1375466479427.1375639017535 >> > ver = 0 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-6.corp.oc.com%2C60020%2C1375466460755-splitting%2Fmb-6.corp.oc.com >> > %252C60020%252C1375466460755.1375623021175 >> > ver = 0 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-3.corp.oc.com%2C60020%2C1375466447768-splitting%2Fmb-3.corp.oc.com >> > %252C60020%252C1375466447768.1375630425141 >> > ver = 0 >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: resubmitting unassigned >> > task(s) after timeout >> > 2013-08-08 12:57:37,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-6.corp.oc.com%2C60020%2C1375466460755-splitting%2Fmb-6.corp.oc.com >> > %252C60020%252C1375466460755.1375620714514 >> > ver = 3 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-6.corp.oc.com%2C60020%2C1375924525310-splitting%2Fmb-6.corp.oc.com >> > %252C60020%252C1375924525310.1375924529658 >> > ver = 0 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-4.corp.oc.com%2C60020%2C1375466551673-splitting%2Fmb-4.corp.oc.com >> > %252C60020%252C1375466551673.1375641592581 >> > ver = 0 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-5.corp.oc.com%2C60020%2C1375924528073-splitting%2Fmb-5.corp.oc.com >> > %252C60020%252C1375924528073.1375924532442 >> > ver = 0 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-6.corp.oc.com%2C60020%2C1375466460755-splitting%2Fmb-6.corp.oc.com >> > %252C60020%252C1375466460755.1375622290167 >> > ver = 3 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-5.corp.oc.com%2C60020%2C1375466463385-splitting%2Fmb-5.corp.oc.com >> > %252C60020%252C1375466463385.1375638183425 >> > ver = 0 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-5.corp.oc.com%2C60020%2C1375466463385-splitting%2Fmb-5.corp.oc.com >> > %252C60020%252C1375466463385.1375639599559 >> > ver = 0 >> > 2013-08-08 12:57:37,630 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: task not yet acquired >> > /hbase/splitlog/hdfs%3A%2F%2Fmb-1.corp.oc.com%3A54310%2Fhbase%2F.logs% >> > 2Fmb-5.corp.oc.com%2C60020%2C1375466463385-splitting%2Fmb-5.corp.oc.com >> > %252C60020%252C1375466463385.1375641710787 >> > ver = 3 >> > 2013-08-08 12:57:37,633 INFO >> > org.apache.hadoop.hbase.master.SplitLogManager: task >> > /hbase/splitlog/RESCAN0000006975 entered state done mb-1.corp.oc.com >> > ,60000,1375924508669 >> > 2013-08-08 12:57:37,633 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager$DeleteAsyncCallback: >> deleted >> > /hbase/splitlog/RESCAN0000006975 >> > 2013-08-08 12:57:37,633 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: deleted task without in >> > memory state /hbase/splitlog/RESCAN0000006975 >> > 2013-08-08 12:57:38,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:39,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:40,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:41,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:42,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:43,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:44,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:45,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:46,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:47,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:48,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:49,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:50,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:51,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:52,628 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:53,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:54,487 DEBUG >> > >> > >> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation: >> > Lookedup root region location, >> > >> > >> connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@24ddb5c9 >> > ; >> > serverName= >> > 2013-08-08 12:57:54,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:55,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:56,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:57,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:58,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:57:59,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > 2013-08-08 12:58:00,629 DEBUG >> > org.apache.hadoop.hbase.master.SplitLogManager: total tasks = 14 >> unassigned >> > = 14 >> > >> > >> > The cluster is unresponsive. I cannot access 4242 port on any of the >> > cluster nodes. >> > When I try to run tsdb command "tsdb uig grep metrics .", i am getting >> > following error messages >> > ERROR [main-EventThread] HBaseClient: The znode for the -ROOT- region >> > doesn't exist! >> > ERROR [main-EventThread] HBaseClient: The znode for the -ROOT- region >> > doesn't exist! >> > >> > Could you please suggest me what I can do to stop it. >> > >> > Thanks in Advance. >> > >> > Regards, >> > OC. >> > >> > >
