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https://issues.apache.org/jira/browse/HBASE-21505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16711798#comment-16711798
 ] 

Hadoop QA commented on HBASE-21505:
-----------------------------------

| (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 
12s{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:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
27s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 
40s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  6m  
7s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  3m 
20s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
44s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
30s{color} | {color:blue} hbase-hadoop2-compat in master has 18 extant Findbugs 
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  2m  
5s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
15s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 
 1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  6m  
8s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green}  6m  
8s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  6m  
8s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m 
30s{color} | {color:red} hbase-server: The patch generated 3 new + 85 unchanged 
- 3 fixed = 88 total (was 88) {color} |
| {color:red}-1{color} | {color:red} rubocop {color} | {color:red}  0m  
9s{color} | {color:red} The patch generated 55 new + 405 unchanged - 9 fixed = 
460 total (was 414) {color} |
| {color:orange}-0{color} | {color:orange} ruby-lint {color} | {color:orange}  
0m  4s{color} | {color:orange} The patch generated 3 new + 748 unchanged - 1 
fixed = 751 total (was 749) {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 
56s{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 31s{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} hbaseprotoc {color} | {color:green}  
3m  0s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  2m 
43s{color} | {color:red} hbase-server generated 2 new + 0 unchanged - 0 fixed = 
2 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
54s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
34s{color} | {color:green} hbase-protocol-shaded in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
27s{color} | {color:green} hbase-hadoop-compat in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
31s{color} | {color:green} hbase-hadoop2-compat in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
22s{color} | {color:green} hbase-protocol in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  3m 
11s{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}126m 47s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  7m  
0s{color} | {color:green} hbase-shell in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  2m 
23s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}220m  1s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:hbase-server |
|  |  Dead store to lastWriteTime in 
org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.replicate(ReplicationEndpoint$ReplicateContext)
  At 
HBaseInterClusterReplicationEndpoint.java:org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.replicate(ReplicationEndpoint$ReplicateContext)
  At HBaseInterClusterReplicationEndpoint.java:[line 377] |
|  |  Dead store to walGroupId in 
org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.replicate(ReplicationEndpoint$ReplicateContext)
  At 
HBaseInterClusterReplicationEndpoint.java:org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.replicate(ReplicationEndpoint$ReplicateContext)
  At HBaseInterClusterReplicationEndpoint.java:[line 347] |
| Failed junit tests | hadoop.hbase.master.TestGetReplicationLoad |
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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-21505 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12950843/HBASE-21505-master.002.patch
 |
| Optional Tests |  dupname  asflicense  javac  javadoc  unit  findbugs  
shadedjars  hadoopcheck  hbaseanti  checkstyle  compile  cc  hbaseprotoc  
rubocop  ruby_lint  |
| uname | Linux b5b3c01578d0 4.4.0-139-generic #165~14.04.1-Ubuntu SMP Wed Oct 
31 10:55:11 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/component/dev-support/hbase-personality.sh
 |
| git revision | master / 12e75a8a63 |
| 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/15210/artifact/patchprocess/diff-checkstyle-hbase-server.txt
 |
| rubocop | v0.60.0 |
| rubocop | 
https://builds.apache.org/job/PreCommit-HBASE-Build/15210/artifact/patchprocess/diff-patch-rubocop.txt
 |
| ruby-lint | v2.3.1 |
| ruby-lint | 
https://builds.apache.org/job/PreCommit-HBASE-Build/15210/artifact/patchprocess/diff-patch-ruby-lint.txt
 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HBASE-Build/15210/artifact/patchprocess/new-findbugs-hbase-server.html
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/15210/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/15210/testReport/ |
| Max. process+thread count | 4656 (vs. ulimit of 10000) |
| modules | C: hbase-protocol-shaded hbase-hadoop-compat hbase-hadoop2-compat 
hbase-protocol hbase-client hbase-server hbase-shell U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/15210/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Several inconsistencies on information reported for Replication Sources by 
> hbase shell status 'replication' command.
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-21505
>                 URL: https://issues.apache.org/jira/browse/HBASE-21505
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Wellington Chevreuil
>            Assignee: Wellington Chevreuil
>            Priority: Major
>         Attachments: 
> 0001-HBASE-21505-initial-version-for-more-detailed-report.patch, 
> HBASE-21505-master.001.patch, HBASE-21505-master.002.patch
>
>
> While reviewing hbase shell status 'replication' command, noticed the 
> following issues related to replication source section:
> 1) TimeStampsOfLastShippedOp keeps getting updated and increasing even when 
> no new edits were added to source, so nothing was really shipped. Test steps 
> performed:
> 1.1) Source cluster with only one table targeted to replication;
> 1.2) Added a new row, confirmed the row appeared in Target cluster;
> 1.3) Issued status 'replication' command in source, TimeStampsOfLastShippedOp 
> shows current timestamp T1.
> 1.4) Waited 30 seconds, no new data added to source. Issued status 
> 'replication' command, now shows timestamp T2.
> 2) When replication is stuck due some connectivity issues or target 
> unavailability, if new edits are added in source, reported AgeOfLastShippedOp 
> is wrongly showing same value as "Replication Lag". This is incorrect, 
> AgeOfLastShippedOp should not change until there's indeed another edit 
> shipped to target. Test steps performed:
> 2.1) Source cluster with only one table targeted to replication;
> 2.2) Stopped target cluster RS;
> 2.3) Put a new row on source. Running status 'replication' command does show 
> lag increasing. TimeStampsOfLastShippedOp seems correct also, no further 
> updates as described on bullet #1 above.
> 2.4) AgeOfLastShippedOp keeps increasing together with Replication Lag, even 
> though there's no new edit shipped to target:
> {noformat}
> ...
>  SOURCE: PeerID=1, AgeOfLastShippedOp=5581, SizeOfLogQueue=1, 
> TimeStampsOfLastShippedOp=Wed Nov 21 02:50:23 GMT 2018, Replication Lag=5581
> ...
> ...
> SOURCE: PeerID=1, AgeOfLastShippedOp=8586, SizeOfLogQueue=1, 
> TimeStampsOfLastShippedOp=Wed Nov 21 02:50:23 GMT 2018, Replication Lag=8586
> ...
> {noformat}
> 3) AgeOfLastShippedOp gets set to 0 even when a given edit had taken some 
> time before it got finally shipped to target. Test steps performed:
> 3.1) Source cluster with only one table targeted to replication;
> 3.2) Stopped target cluster RS;
> 3.3) Put a new row on source. 
> 3.4) AgeOfLastShippedOp keeps increasing together with Replication Lag, even 
> though there's no new edit shipped to target:
> {noformat}
> T1:
> ...
>  SOURCE: PeerID=1, AgeOfLastShippedOp=5581, SizeOfLogQueue=1, 
> TimeStampsOfLastShippedOp=Wed Nov 21 02:50:23 GMT 2018, Replication Lag=5581
> ...
> T2:
> ...
> SOURCE: PeerID=1, AgeOfLastShippedOp=8586, SizeOfLogQueue=1, 
> TimeStampsOfLastShippedOp=Wed Nov 21 02:50:23 GMT 2018, Replication Lag=8586
> ...
> {noformat}
> 3.5) Restart target cluster RS and verified the new row appeared there. No 
> new edit added, but status 'replication' command reports AgeOfLastShippedOp 
> as 0, while it should be the diff between the time it concluded shipping at 
> target and the time it was added in source:
> {noformat}
> SOURCE: PeerID=1, AgeOfLastShippedOp=0, SizeOfLogQueue=1, 
> TimeStampsOfLastShippedOp=Wed Nov 21 02:50:23 GMT 2018, Replication Lag=0
> {noformat}
> 4) When replication is stuck due some connectivity issues or target 
> unavailability, if RS is restarted, once recovered queue source is started, 
> TimeStampsOfLastShippedOp is set to initial java date (Thu Jan 01 01:00:00 
> GMT 1970, for example), thus "Replication Lag" also gives a complete 
> inaccurate value. 
> Tests performed:
> 4.1) Source cluster with only one table targeted to replication;
> 4.2) Stopped target cluster RS;
> 4.3) Put a new row on source, restart RS on source, waited a few seconds for 
> recovery queue source to startup, then it gives:
> {noformat}
> SOURCE: PeerID=1, AgeOfLastShippedOp=0, SizeOfLogQueue=1, 
> TimeStampsOfLastShippedOp=Thu Jan 01 01:00:00 GMT 1970, Replication 
> Lag=9223372036854775807
> {noformat}
> Also, we should report status to all sources running, current output format 
> gives the impression there’s only one, even when there are recovery queues, 
> for instance. 
> Here is a list of ideas on how the command should report under different 
> states of replication:
> a) Source started, target stopped, no edits arrived on source yet: 
> Status replication should not show any lags, no edits shipped, no edits 
> arrived;
> b) Source started, target stopped, add edit on source:
> Status replication should report following info -> lag, time of edit arrival 
> on source, additional message saying no edits had been shipped to target;
> c) Source started, target stopped, edit added on source, restart source:
> Status replication should list two sources, one normal, other recovered. 
> Normal source should show no lags, no edits shipped, no edits arrived. 
> Recovered should show no edits shipped, but should have edits arrived in 
> source and lag > 0;
> d) Source started, target stopped, add edit on source, restart source, add 
> another edit on source:
> Status replication should list two sources, one normal, other recovered. Both 
> sources should show no edits shipped, but should have edits arrived in source 
> and lag > 0;
> e) Source started, target stopped, add edit on source, restart source, add 
> another edit on source, start target:
> Status replication should list normal source only (after some short period), 
> with proper times for last shipped, last arrived in source and no replication 
> lag.
> f) Source started, target stopped, add edit on source, restart source, 
> restart target:
> Status replication should list normal source only, with no shipped, nor 
> arrived edits, and lag should be 0;



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