Thanks Cheng. I'll try increasing my max region size limit. However I am not clear with this math:
"Since you set the max file size to 2G, you can only store 2XN G data into a single CF." Why is that? My assumption is, even though single region can only be 2 GB, I can still have hundreds of regions, and hence can store 200GB+ data in single CF on my 10 machine cluster. Ameya On Thu, Nov 1, 2012 at 1:19 AM, Cheng Su <[email protected]> wrote: > I met same problem these days. > I'm not very sure the error log is exactly same, but I do have the > same exception > > org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: > Failed 1 action: NotServingRegionException: 1 time, servers with > issues: smartdeals-hbase8-snc1.snc1:60020, > > and the table is also neither enabled nor disabled, thus I can't drop it. > > I guess the problem is the total store size. > How many region server do you have? > Since you set the max file size to 2G, you can only store 2XN G data > into a single CF. > (N is the number of your region servers) > > You might want to increase the max file size or region servers. > > On Thu, Nov 1, 2012 at 3:29 PM, Ameya Kantikar <[email protected]> wrote: > > One more thing, the Hbase table in question is neither enabled, nor > > disabled: > > > > hbase(main):006:0> is_disabled 'userTable1' > > false > > > > 0 row(s) in 0.0040 seconds > > > > hbase(main):007:0> is_enabled 'userTable1' > > false > > > > 0 row(s) in 0.0040 seconds > > > > Ameya > > > > On Thu, Nov 1, 2012 at 12:02 AM, Ameya Kantikar <[email protected]> > wrote: > > > >> Hi, > >> > >> I am trying to load lot of data (around 1.5 TB) into a single Hbase > table. > >> I have setup region size at 2 GB. I also > >> set hbase.regionserver.handler.count at 30. > >> > >> When I start loading data via MR, after a while, tasks start failing > with > >> following error: > >> > >> org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: > Failed 1 action: NotServingRegionException: 1 time, servers with issues: > smartdeals-hbase8-snc1.snc1:60020, > >> at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatchCallback(HConnectionManager.java:1641) > >> at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatch(HConnectionManager.java:1409) > >> at > org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:943) > >> at org.apache.hadoop.hbase.client.HTable.doPut(HTable.java:820) > >> at org.apache.hadoop.hbase.client.HTable.put(HTable.java:795) > >> at > com..mr.hbase.LoadUserCacheInHbase$TokenizerMapper.map(LoadUserCacheInHbase.java:83) > >> at > com..mr.hbase.LoadUserCacheInHbase$TokenizerMapper.map(LoadUserCacheInHbase.java:33) > >> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:140) > >> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:645) > >> at org.apache.hadoop.mapred.MapTask.run(MapTask.j > >> > >> On the hbase8 machine I see following in logs: > >> > >> ERROR org.apache.hadoop.hbase.regionserver.wal.HLog: Error while > syncing, requesting close of hlog > >> java.io.IOException: Reflection > >> at > org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.sync(SequenceFileLogWriter.java:230) > >> at > org.apache.hadoop.hbase.regionserver.wal.HLog.syncer(HLog.java:1109) > >> at > org.apache.hadoop.hbase.regionserver.wal.HLog.sync(HLog.java:1213) > >> at > org.apache.hadoop.hbase.regionserver.wal.HLog$LogSyncer.run(HLog.java:1071) > >> at java.lang.Thread.run(Thread.java:662) > >> Caused by: java.lang.reflect.InvocationTargetException > >> at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) > >> at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > >> at java.lang.reflect.Method.invoke(Method.java:597) > >> at > org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.sync(SequenceFileLogWriter.java:228) > >> ... 4 more > >> > >> > >> I only have 15 map tasks each on a 10 machine cluster (total 150 map > tasks entering data into Hbase table). > >> > >> Further, I see 2-3 regions perpetually under "Regions in Transitions" > in Hbase master web console as follows: > >> > >> 8dcb3edee4e43faa3dbeac2db4f12274userTable1,[email protected],1351728961461.8dcb3edee4e43faa3dbeac2db4f12274. > state=PENDING_OPEN, ts=Thu Nov 01 06:39:57 UTC 2012 (409s ago), > server=smartdeals-hbase1-snc1.snc1,60020,1351751785514 > >> > >> > >> bb91fd0c855e60dd4159e0ad3fd52cdauserTable1,[email protected],1351728968936.bb91fd0c855e60dd4159e0ad3fd52cda. > state=PENDING_OPEN, ts=Thu Nov 01 06:42:17 UTC 2012 (269s ago), > server=smartdeals-hbase3-snc1.snc1,60020,1351747466016 > >> bd44334a11464baf85013c97d673e600userTable1,[email protected],1351728952308.bd44334a11464baf85013c97d673e600. > state=PENDING_OPEN, ts=Thu Nov 01 06:42:17 UTC 2012 (269s ago), > server=smartdeals-hbase1-snc1.snc1,60020,1351751785514 > >> ed1f7e7908fc232f10d78dd1e796a5d7userTable1,[email protected],1351728971232.ed1f7e7908fc232f10d78dd1e796a5d7. > state=PENDING_OPEN, ts=Thu Nov 01 06:37:37 UTC 2012 (549s ago), > server=smartdeals-hbase3-snc1.snc1,60020,1351747466016 > >> > >> > >> Note these are not going away even after 30 minutes. > >> > >> Further after running > >> > >> hbase hbck -summary I get following: > >> > >> Summary: > >> -ROOT- is okay. > >> Number of regions: 1 > >> Deployed on: smartdeals-hbase7-snc1.snc1,60020,1351747458782 > >> .META. is okay. > >> Number of regions: 1 > >> Deployed on: smartdeals-hbase7-snc1.snc1,60020,1351747458782 > >> test1 is okay. > >> Number of regions: 1 > >> Deployed on: smartdeals-hbase2-snc1.snc1,60020,1351747457308 > >> userTable1 is okay. > >> Number of regions: 32 > >> Deployed on: smartdeals-hbase10-snc1.snc1,60020,1351747456776 > smartdeals-hbase2-snc1.snc1,60020,1351747457308 > smartdeals-hbase4-snc1.snc1,60020,1351747455571 > smartdeals-hbase5-snc1.snc1,60020,1351747458579 > smartdeals-hbase6-snc1.snc1,60020,1351747458186 > smartdeals-hbase7-snc1.snc1,60020,1351747458782 > smartdeals-hbase8-snc1.snc1,60020,1351747459112 > smartdeals-hbase9-snc1.snc1,60020,1351747455106 > >> 24 inconsistencies detected. > >> Status: INCONSISTENT > >> > >> In master logs I am seeing following error: > >> > >> ERROR org.apache.hadoop.hbase.master.AssignmentManager: Failed > assignment in: smartdeals-hbase3-snc1.snc1,60020,1351747466016 due to > >> > org.apache.hadoop.hbase.regionserver.RegionAlreadyInTransitionException: > Received:OPEN for the > region:userTable1,[email protected],1351728968936.bb91fd0c855e60dd4159e0ad3fd52cda. > ,which we are already trying to OPEN. > >> at > org.apache.hadoop.hbase.regionserver.HRegionServer.checkIfRegionInTransition(HRegionServer.java:2499) > at > org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:2457) > at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) at > org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364) > at > org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1336) > >> > >> > >> Am I missing something? How do I recover from this? How do I load lot > of data via MR into Hbase Tables? > >> > >> > >> I am running under following setup: > >> > >> hadoop:2.0.0-cdh4.0.1 > >> > >> hbase: 0.92.1-cdh4.0.1, r > >> > >> > >> Would greatly appreciate any help. > >> > >> > >> Ameya > >> > >> > >> > >> > > > > -- > > Regards, > Cheng Su >
