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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HBASE-17069) RegionServer writes invalid META entries for split daughters in some circumstances
Date Wed, 22 Feb 2017 01:40:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15877228#comment-15877228
] 

Andrew Purtell edited comment on HBASE-17069 at 2/22/17 1:39 AM:
-----------------------------------------------------------------

bq. So you think it good in branch-1.2, branch-1.3 but not branch-1 Andrew Purtell?

I think this isn't completely solved and that surfaces in branch-1. Not sure at this point
if that is the only affected branch. My guess is there is common code between them all that
needs adjusting, to do with merging. 

bq. Interesting we were focused on locking but it seems like the issue something else altogether
but it was in the locking patch.... Dang.

Yeah I spent a while looking at locking... but Abhishek got us pointed in the right direction,
thankfully. 


was (Author: apurtell):
bq. So you think it good in branch-1.2, branch-1.3 but not branch-1 Andrew Purtell?

I think this isn't completely solved and that surfaces in branch-1. Not sure at this point
if that is the only affected branch. My guess is there is common code between them all that
needs adjusting, to do with merging. 

> RegionServer writes invalid META entries for split daughters in some circumstances
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-17069
>                 URL: https://issues.apache.org/jira/browse/HBASE-17069
>             Project: HBase
>          Issue Type: Bug
>          Components: wal
>    Affects Versions: 2.0.0, 1.3.0, 1.4.0, 1.2.4
>            Reporter: Andrew Purtell
>            Assignee: Abhishek Singh Chouhan
>            Priority: Blocker
>             Fix For: 2.0.0, 1.4.0, 1.3.1, 1.2.5
>
>         Attachments: daughter_1_d55ef81c2f8299abbddfce0445067830.log, daughter_2_08629d59564726da2497f70451aafcdb.log,
HBASE-17069.branch-1.3.001.patch, HBASE-17069.branch-1.3.002.patch, HBASE-17069.master.001.patch,
logs.tar.gz, parent-393d2bfd8b1c52ce08540306659624f2.log
>
>
> I have been seeing frequent ITBLL failures testing various versions of 1.2.x. 
> Over the lifetime of 1.2.x the following issues have been fixed:
> - HBASE-15315 (Remove always set super user call as high priority)
> - HBASE-16093 (Fix splits failed before creating daughter regions leave meta inconsistent)
> And this one is pending:
> - HBASE-17044 (Fix merge failed before creating merged region leaves meta inconsistent)
> I can apply all of the above to branch-1.2 and still see this failure: 
> *The life of stillborn region d55ef81c2f8299abbddfce0445067830*
> *Master sees SPLITTING_NEW*
> {noformat}
> 2016-11-08 04:23:21,186 INFO  [AM.ZK.Worker-pool2-t82] master.RegionStates: Transition
null to {d55ef81c2f8299abbddfce0445067830 state=SPLITTING_NEW, ts=1478579001186, server=node-3.cluster,16020,1478578389506}
> {noformat}
> *The RegionServer creates it*
> {noformat}
> 2016-11-08 04:23:26,035 INFO  [StoreOpener-d55ef81c2f8299abbddfce0445067830-1] hfile.CacheConfig:
Created cacheConfig for GomnU: blockCache=LruBlockCache{blockCount=34, currentSize=14996112,
freeSize=12823716208, maxSize=12838712320, heapSize=14996112, minSize=12196776960, minFactor=0.95,
multiSize=6098388480, multiFactor=0.5, singleSize=3049194240, singleFactor=0.25}, cacheDataOnRead=true,
cacheDataOnWrite=false, cacheIndexesOnWrite=false, cacheBloomsOnWrite=false, cacheEvictOnClose=false,
cacheDataCompressed=false, prefetchOnOpen=false
> 2016-11-08 04:23:26,038 INFO  [StoreOpener-d55ef81c2f8299abbddfce0445067830-1] hfile.CacheConfig:
Created cacheConfig for big: blockCache=LruBlockCache{blockCount=34, currentSize=14996112,
freeSize=12823716208, maxSize=12838712320, heapSize=14996112, minSize=12196776960, minFactor=0.95,
multiSize=6098388480, multiFactor=0.5, singleSize=3049194240, singleFactor=0.25}, cacheDataOnRead=true,
cacheDataOnWrite=false, cacheIndexesOnWrite=false, cacheBloomsOnWrite=false, cacheEvictOnClose=false,
cacheDataCompressed=false, prefetchOnOpen=false
> 2016-11-08 04:23:26,442 INFO  [StoreOpener-d55ef81c2f8299abbddfce0445067830-1] hfile.CacheConfig:
Created cacheConfig for meta: blockCache=LruBlockCache{blockCount=63, currentSize=17187656,
freeSize=12821524664, maxSize=12838712320, heapSize=17187656, minSize=12196776960, minFactor=0.95,
multiSize=6098388480, multiFactor=0.5, singleSize=3049194240, singleFactor=0.25}, cacheDataOnRead=true,
cacheDataOnWrite=false, cacheIndexesOnWrite=false, cacheBloomsOnWrite=false, cacheEvictOnClose=false,
cacheDataCompressed=false, prefetchOnOpen=false
> 2016-11-08 04:23:26,713 INFO  [StoreOpener-d55ef81c2f8299abbddfce0445067830-1] hfile.CacheConfig:
Created cacheConfig for nwmrW: blockCache=LruBlockCache{blockCount=96, currentSize=19178440,
freeSize=12819533880, maxSize=12838712320, heapSize=19178440, minSize=12196776960, minFactor=0.95,
multiSize=6098388480, multiFactor=0.5, singleSize=3049194240, singleFactor=0.25}, cacheDataOnRead=true,
cacheDataOnWrite=false, cacheIndexesOnWrite=false, cacheBloomsOnWrite=false, cacheEvictOnClose=false,
cacheDataCompressed=false, prefetchOnOpen=false
> 2016-11-08 04:23:26,715 INFO  [StoreOpener-d55ef81c2f8299abbddfce0445067830-1] hfile.CacheConfig:
Created cacheConfig for piwbr: blockCache=LruBlockCache{blockCount=96, currentSize=19178440,
freeSize=12819533880, maxSize=12838712320, heapSize=19178440, minSize=12196776960, minFactor=0.95,
multiSize=6098388480, multiFactor=0.5, singleSize=3049194240, singleFactor=0.25}, cacheDataOnRead=true,
cacheDataOnWrite=false, cacheIndexesOnWrite=false, cacheBloomsOnWrite=false, cacheEvictOnClose=false,
cacheDataCompressed=false, prefetchOnOpen=false
> 2016-11-08 04:23:26,717 INFO  [StoreOpener-d55ef81c2f8299abbddfce0445067830-1] hfile.CacheConfig:
Created cacheConfig for tiny: blockCache=LruBlockCache{blockCount=96, currentSize=19178440,
freeSize=12819533880, maxSize=12838712320, heapSize=19178440, minSize=12196776960, minFactor=0.95,
multiSize=6098388480, multiFactor=0.5, singleSize=3049194240, singleFactor=0.25}, cacheDataOnRead=true,
cacheDataOnWrite=false, cacheIndexesOnWrite=false, cacheBloomsOnWrite=false, cacheEvictOnClose=false,
cacheDataCompressed=false, prefetchOnOpen=false
> {noformat}
> *The RegionServer onlines it*
> {noformat}
> 2016-11-08 04:23:27,015 INFO  [node-3.cluster,16020,1478578389506-daughterOpener=d55ef81c2f8299abbddfce0445067830]
regionserver.HRegion: Onlined d55ef81c2f8299abbddfce0445067830; next sequenceid=19184
> 2016-11-08 04:23:27,029 INFO  [regionserver/node-3.cluster/192.168.124.4:16020-splits-1478579001099]
regionserver.HRegionServer: Post open deploy tasks for IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830.
> 2016-11-08 04:23:27,047 INFO  [regionserver/node-3.cluster/192.168.124.4:16020-splits-1478579001099]
hbase.MetaTableAccessor: Updated row IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830.
with server=node-3.cluster,16020,1478578389506
> {noformat}
> *The Master transitions state from SPLITTING_NEW to OPEN*
> {noformat}
> 2016-11-08 04:23:27,058 INFO  [AM.ZK.Worker-pool2-t84] master.RegionStates: Transition
{d55ef81c2f8299abbddfce0445067830 state=SPLITTING_NEW, ts=1478579007057, server=node-3.cluster,16020,1478578389506}
to {d55ef81c2f8299abbddfce0445067830 state=OPEN, ts=1478579007058, server=node-3.cluster,16020,1478578389506}
> 2016-11-08 04:23:27,059 INFO  [AM.ZK.Worker-pool2-t84] master.AssignmentManager: Handled
SPLIT event; parent=IntegrationTestBigLinkedList,,1478577020916.393d2bfd8b1c52ce08540306659624f2.,
daughter a=IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830.,
daughter b=IntegrationTestBigLinkedList,/\xFB\x14,1478579001155.08629d59564726da2497f70451aafcdb.,
on node-3.cluster,16020,1478578389506
> {noformat}
> *RegionServer updates META  - BUT APPARENTLY NOT CORRECTLY*
> {noformat}
> 2016-11-08 04:23:27,165 INFO  [regionserver/node-3.cluster/192.168.124.4:16020-splits-1478579001099]
regionserver.SplitRequest: Region split, hbase:meta updated, and report to master. Parent=IntegrationTestBigLinkedList,,1478577020916.393d2bfd8b1c52ce08540306659624f2.,
new regions: IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830.,
IntegrationTestBigLinkedList,/\xFB\x14,1478579001155.08629d59564726da2497f70451aafcdb.. Split
took 6sec
> {noformat}
> *RegionServer delays flush*
> (Is this important?)
> {noformat}
> 2016-11-08 04:24:14,639 WARN  [MemStoreFlusher.0] regionserver.MemStoreFlusher: Region
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830. has too many
store files; delaying flush up to 90000ms
> {noformat}
> *Immediate warnings about No serialized HRegionInfo*
> {noformat}
> 2016-11-08 04:24:44,691 WARN  [B.defaultRpcServer.handler=26,queue=2,port=16000] hbase.MetaTableAccessor:
No serialized HRegionInfo in keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478579007029/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478579007029/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478579007029/Put/vlen=8/seqid=0}
> {noformat}
> *Master is not happy either*
> {noformat}
> 2016-11-08 04:24:51,148 WARN  [MASTER_TABLE_OPERATIONS-node-1:16000-0] hbase.MetaTableAccessor:
No serialized HRegionInfo in keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478579007029/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478579007029/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478579007029/Put/vlen=8/seqid=0}
> {noformat}
> *TestRunner MetaScanner complains about invalid entries in META missing HRegionInfo*
> {noformat}
> (standard input):9086:2016-11-08 05:04:17,230 WARN  [B.defaultRpcServer.handler=4,queue=1,port=16000]
hbase.MetaTableAccessor: No serialized HRegionInfo in keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478581041080/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478581041080/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478581041080/Put/vlen=8/seqid=0}
> {noformat}
> *ITBLL MapReduce tasks fail because part of the keyspace cannot be located:*
> {noformat}
> java.io.IOException: HRegionInfo was null in IntegrationTestBigLinkedList, row=keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478581041080/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478581041080/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478581041080/Put/vlen=8/seqid=0}
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1293)
>         at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1185)
>         at org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:410)
>         at org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:359)
>         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.backgroundFlushCommits(BufferedMutatorImpl.java:238)
>         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.mutate(BufferedMutatorImpl.java:154)
>         at org.apache.hadoop.hbase.client.BufferedMutatorImpl.mutate(BufferedMutatorImpl.java:121)
>         at org.apache.hadoop.hbase.test.IntegrationTestBigLinkedList$Generator$GeneratorMapper.persist(IntegrationTestBigLinkedList.java:486)
>         at org.apache.hadoop.hbase.test.IntegrationTestBigLinkedList$Generator$GeneratorMapper.map(IntegrationTestBigLinkedList.java:431)
>         at org.apache.hadoop.hbase.test.IntegrationTestBigLinkedList$Generator$GeneratorMapper.map(IntegrationTestBigLinkedList.java:375)
>         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
>         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
>         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:170)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:422)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1719)
>         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:164)
> {noformat}
> {noformat}
> ./application_1478574724776_0002/container_1478574724776_0002_01_000008/syslog:920:java.io.IOException:
HRegionInfo was null in IntegrationTestBigLinkedList, row=keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478580288482/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478580288482/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478580288482/Put/vlen=8/seqid=0}
> {noformat}
> {noformat}
> ./application_1478574724776_0002/container_1478574724776_0002_01_000010/syslog:920:java.io.IOException:
HRegionInfo was null in IntegrationTestBigLinkedList, row=keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478580288482/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478580288482/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478580288482/Put/vlen=8/seqid=0}
> {noformat}
> {noformat}
> ./application_1478574724776_0002/container_1478574724776_0002_01_000011/syslog:909:java.io.IOException:
HRegionInfo was null in IntegrationTestBigLinkedList, row=keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478580288482/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478580288482/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478580288482/Put/vlen=8/seqid=0}
> {noformat}
> {noformat}
> ./application_1478574724776_0002/container_1478574724776_0002_01_000030/syslog:48:java.io.IOException:
HRegionInfo was null in IntegrationTestBigLinkedList, row=keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478581041080/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478581041080/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478581041080/Put/vlen=8/seqid=0}
> {noformat}
> {noformat}
> ./application_1478574724776_0002/container_1478574724776_0002_01_000048/syslog:48:java.io.IOException:
HRegionInfo was null in IntegrationTestBigLinkedList, row=keyvalues={IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:seqnumDuringOpen/1478581041080/Put/vlen=8/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:server/1478581041080/Put/vlen=20/seqid=0,
IntegrationTestBigLinkedList,,1478579001155.d55ef81c2f8299abbddfce0445067830./info:serverstartcode/1478581041080/Put/vlen=8/seqid=0}
> {noformat}



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