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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12043) Add counters for block re-replication
Date Thu, 29 Jun 2017 01:41:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067564#comment-16067564
] 

Hadoop QA commented on HDFS-12043:
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| (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  9s{color} | {color:blue}
Docker mode activated. {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 files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m 26s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 58s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 38s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  3s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 49s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 43s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 56s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 51s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 51s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 36s{color}
| {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch generated 3 new + 174 unchanged
- 1 fixed = 177 total (was 175) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 51s{color} |
{color:green} the patch passed {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} findbugs {color} | {color:green}  1m 45s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 38s{color} |
{color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 66m 19s{color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 19s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 92m 18s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.namenode.TestReconstructStripedBlocks |
|   | hadoop.hdfs.TestDFSStripedInputStreamWithRandomECPolicy |
|   | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HDFS-12043 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12874983/HDFS-12043.002.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 8cef9ac02737 3.13.0-119-generic #166-Ubuntu SMP Wed May 3 12:18:55 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / c1edca1 |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/20087/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/20087/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/20087/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/20087/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Add counters for block re-replication
> -------------------------------------
>
>                 Key: HDFS-12043
>                 URL: https://issues.apache.org/jira/browse/HDFS-12043
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-12043.001.patch, HDFS-12043.002.patch
>
>
> We occasionally see that the under-replicated block count is not going down quickly enough.
We've made at least one fix to speed up block replications (HDFS-9205) but we need better
insight into the current state and activity of the block re-replication logic. For example,
we need to understand whether is it because re-replication is not making forward progress
at all, or is it because new under-replicated blocks are being added faster.
> We should include additional metrics:
> # Cumulative number of blocks that were successfully replicated. 
> # Cumulative number of re-replications that timed out.
> # Cumulative number of blocks that were dequeued for re-replication but not scheduled
e.g. because they were invalid, or under-construction or replication was postponed.
>  
> The growth rate of of the above metrics will make it clear whether block replication
is making forward progress and if not then provide potential clues about why it is stalled.
> Thanks [~arpitagarwal] for the offline discussions.



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