[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16640353#comment-16640353 ] Ben Lau commented on HBASE-15911: - Hi, checking back in here. Francis didn't have time to look at the master patch. Meanwhile, in master, it looks like the regionstate listener was refactored out in a later revision in favor of a more explicit call to the quota manager, so I believe this bug no longer exists in master. So I will submit a patch for 1.3 and 1.4 instead. Will attach a patch for branch-1.4. [~yuzhih...@gmail.com] Can you review it? > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Ben Lau >Priority: Major > Attachments: HBASE-15911-master.patch > > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[
https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16379258#comment-16379258
]
Hadoop QA commented on HBASE-15911:
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| (x) *{color:red}-1 overall{color}* |
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
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|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m
0s{color} | {color:green} Patch does not have any anti-patterns. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
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|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
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| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
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58s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 5m
8s{color} | {color:green} branch has no errors when building our shaded
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
53s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
26s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
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| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m
1s{color} | {color:red} hbase-server: The patch generated 14 new + 323
unchanged - 2 fixed = 337 total (was 325) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 4m
8s{color} | {color:green} patch has no errors when building our shaded
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| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 6m
8s{color} | {color:red} The patch causes 10 errors with Hadoop v2.6.5. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 8m
5s{color} | {color:red} The patch causes 10 errors with Hadoop v2.7.4. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red} 10m
11s{color} | {color:red} The patch causes 10 errors with Hadoop v3.0.0. {color}
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| {color:green}+1{color} | {color:green} unit {color} | {color:green} 78m
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:eee3b01 |
| JIRA Issue | HBASE-15911 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12911285/HBASE-15911-master.patch
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| Optional Tests | asflicense javac javadoc unit findbugs shadedjars
hadoopcheck hbaseanti checkstyle compile |
| uname | Linux 3006f97bdd8f 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12
13:48:03 UTC 2016 x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
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| git revision | master / 0fa5d69fc7 |
| maven | version: Apache Maven 3.5.2
(138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T07:58:13Z) |
| Default Java | 1.8.0_151 |
| findbugs | v3.1.0-RC3 |
| checkstyle |
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16379134#comment-16379134 ] Ben Lau commented on HBASE-15911: - Okay maybe [~toffer] should take a look as he is very familiar with the quota implementation (although it has changed a little in master branch from 1.X). > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Ben Lau >Priority: Major > Attachments: HBASE-15911-master.patch > > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16379132#comment-16379132 ] Ted Yu commented on HBASE-15911: One +1 should be enough. I can take a look if Francis is busy. > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Ben Lau >Priority: Major > Attachments: HBASE-15911-master.patch > > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16379126#comment-16379126 ] Ben Lau commented on HBASE-15911: - [~toffer] Want to review? Do we need 2 +1's? [~te...@apache.org] want to look too? > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Ben Lau >Priority: Major > Attachments: HBASE-15911-master.patch > > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16370660#comment-16370660 ] Ben Lau commented on HBASE-15911: - Attached a patch for master. Let me know what you think guys. The master patch will be different for the patch I will submit for 1.X later because in master, splits/merges are now procedure transactions, which means we probably should use ProcedureSyncWait to block until the quota manager is available before splitting/merging. In contrast in 1.X, split/merge are still second-class actions within the AssignmentManager. So I think what makes sense is in master branch, for splits against an uninitialized hmaster to wait until the hmaster is ready, before being processed. Whereas in 1.X, splits against an uninitialized hmaster that has quota support enabled should instead throw a PleaseHoldException to the regionserver that reported the split. Let me know if that sounds reasonable. > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Mikhail Antonov >Priority: Major > Attachments: HBASE-15911-master.patch > > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16366288#comment-16366288 ] Ben Lau commented on HBASE-15911: - Thanks [~pankaj2461], I will take a look at master to see if this is broken there as well or just in branch-1 and/or branch-2 and then submit forward ports of our patch later (we are on 1.3). Master code looks somewhat different. > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Mikhail Antonov >Priority: Major > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16364274#comment-16364274 ] Pankaj Kumar commented on HBASE-15911: -- Hi [~benlau], please feel free to take this Jira. I too fixed in our version but didn't find time to write test case. > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Mikhail Antonov >Priority: Major > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16363161#comment-16363161 ] Ben Lau commented on HBASE-15911: - [~pankaj2461] [~mantonov] We recently ran into this and had to fix this as it was preventing our master from starting up. We would like to submit a suggested fix and test case if you guys do not have a patch yet. > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Mikhail Antonov >Priority: Major > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15859399#comment-15859399 ] Pankaj Kumar commented on HBASE-15911: -- Shall I take this and provide a patch? > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Mikhail Antonov > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[ https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15857685#comment-15857685 ] Pankaj Kumar commented on HBASE-15911: -- [~mantonov], Have you met this again? > NPE in AssignmentManager.onRegionTransition after Master restart > > > Key: HBASE-15911 > URL: https://issues.apache.org/jira/browse/HBASE-15911 > Project: HBase > Issue Type: Bug > Components: master, Region Assignment >Affects Versions: 1.3.0 >Reporter: Mikhail Antonov >Assignee: Mikhail Antonov > > 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object > java.lang.NullPointerException > at > org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364) > at > org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421) > at > org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623) > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239) > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116) > at > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137) > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112) > at java.lang.Thread.run(Thread.java:745) > I'm pretty sure I've seen it before and more than once, but never got to dig > in. -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Commented] (HBASE-15911) NPE in AssignmentManager.onRegionTransition after Master restart
[
https://issues.apache.org/jira/browse/HBASE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15309091#comment-15309091
]
Pankaj Kumar commented on HBASE-15911:
--
NPE will be thrown when HM is still in initialization phase (not completed
initialization) and by that time RS send "reportRegionStateTransition" ,
AssignmentManager.onRegionTransition()
{code}
case READY_TO_SPLIT:
try {
regionStateListener.onRegionSplit(hri);
if (!((HMaster)server).getSplitOrMergeTracker().isSplitOrMergeEnabled(
Admin.MasterSwitchType.SPLIT)) {
errorMsg = "split switch is off!";
}
} catch (IOException exp) {
errorMsg = StringUtils.stringifyException(exp);
}
break;
{code}
regionStateListener will be initialized during Quota Manager initialization,
HMaster.finishActiveMasterInitialization()
{code}
status.setStatus("Starting quota manager");
initQuotaManager();
{code}
> NPE in AssignmentManager.onRegionTransition after Master restart
>
>
> Key: HBASE-15911
> URL: https://issues.apache.org/jira/browse/HBASE-15911
> Project: HBase
> Issue Type: Bug
> Components: master, Region Assignment
>Affects Versions: 1.3.0
>Reporter: Mikhail Antonov
>Assignee: Mikhail Antonov
>
> 16/05/27 17:49:18 ERROR ipc.RpcServer: Unexpected throwable object
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.master.AssignmentManager.onRegionTransition(AssignmentManager.java:4364)
> at
> org.apache.hadoop.hbase.master.MasterRpcServices.reportRegionStateTransition(MasterRpcServices.java:1421)
> at
> org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:8623)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2239)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:116)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:137)
> at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:112)
> at java.lang.Thread.run(Thread.java:745)
> I'm pretty sure I've seen it before and more than once, but never got to dig
> in.
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