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https://issues.apache.org/jira/browse/HBASE-21291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16648745#comment-16648745
 ] 

Hadoop QA commented on HBASE-21291:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
15s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {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 2 new or modified test 
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
 9s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
23s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
16s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
37s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
26s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
14s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 
31s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
14s{color} | {color:red} hbase-procedure: The patch generated 13 new + 13 
unchanged - 0 fixed = 26 total (was 13) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 1s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
30s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
10m 59s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.7.4 or 3.0.0. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
13s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  3m 
12s{color} | {color:green} hbase-procedure in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
 9s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 38m 33s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:b002b0b |
| JIRA Issue | HBASE-21291 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12943742/HBASE-21291.master.004.patch
 |
| Optional Tests |  dupname  asflicense  javac  javadoc  unit  findbugs  
shadedjars  hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 16a568ae067b 4.4.0-134-generic #160~14.04.1-Ubuntu SMP Fri Aug 
17 11:07:07 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | master / 7464e2ef9d |
| maven | version: Apache Maven 3.5.4 
(1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z) |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC3 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/14682/artifact/patchprocess/diff-checkstyle-hbase-procedure.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/14682/testReport/ |
| Max. process+thread count | 268 (vs. ulimit of 10000) |
| modules | C: hbase-procedure U: hbase-procedure |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/14682/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Add a test for bypassing stuck state-machine procedures
> -------------------------------------------------------
>
>                 Key: HBASE-21291
>                 URL: https://issues.apache.org/jira/browse/HBASE-21291
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Jingyun Tian
>            Assignee: Jingyun Tian
>            Priority: Major
>         Attachments: HBASE-21291.master.001.patch, 
> HBASE-21291.master.002.patch, HBASE-21291.master.003.patch, 
> HBASE-21291.master.004.patch
>
>
> {code}
>       if (!procedure.isFailed()) {
>         if (subprocs != null) {
>           if (subprocs.length == 1 && subprocs[0] == procedure) {
>             // Procedure returned itself. Quick-shortcut for a state 
> machine-like procedure;
>             // i.e. we go around this loop again rather than go back out on 
> the scheduler queue.
>             subprocs = null;
>             reExecute = true;
>             LOG.trace("Short-circuit to next step on pid={}", 
> procedure.getProcId());
>           } else {
>             // Yield the current procedure, and make the subprocedure runnable
>             // subprocs may come back 'null'.
>             subprocs = initializeChildren(procStack, procedure, subprocs);
>             LOG.info("Initialized subprocedures=" +
>               (subprocs == null? null:
>                 Stream.of(subprocs).map(e -> "{" + e.toString() + "}").
>                 collect(Collectors.toList()).toString()));
>           }
>         } else if (procedure.getState() == ProcedureState.WAITING_TIMEOUT) {
>           LOG.debug("Added to timeoutExecutor {}", procedure);
>           timeoutExecutor.add(procedure);
>         } else if (!suspended) {
>           // No subtask, so we are done
>           procedure.setState(ProcedureState.SUCCESS);
>         }
>       }
> {code}
> Currently implementation of ProcedureExecutor will set the reExcecute to true 
> for state machine like procedure. Then if this procedure is stuck at one 
> certain state, it will loop forever.
> {code}
>           IdLock.Entry lockEntry = 
> procExecutionLock.getLockEntry(proc.getProcId());
>           try {
>             executeProcedure(proc);
>           } catch (AssertionError e) {
>             LOG.info("ASSERT pid=" + proc.getProcId(), e);
>             throw e;
>           } finally {
>             procExecutionLock.releaseLockEntry(lockEntry);
> {code}
> Since procedure will get the IdLock and release it after execution done, 
> state machine procedure will never release IdLock until it is finished.
> Then bypassProcedure doesn't work because is will try to grab the IdLock at 
> first.
> {code}
>     IdLock.Entry lockEntry = 
> procExecutionLock.tryLockEntry(procedure.getProcId(), lockWait);
> {code}



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