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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-1017) Use distributed tracing to indentify performance problems in Ozone
Date Fri, 08 Feb 2019 09:23:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-1017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16763439#comment-16763439
] 

Hadoop QA commented on HDDS-1017:
---------------------------------

| (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 17s{color} | {color:blue}
Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  0s{color} | {color:red}
The patch doesn't appear to include any new or modified tests. Please justify why no new tests
are needed for this patch. Also please list what manual steps were performed to verify this
patch. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 21s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 47s{color}
| {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  0s{color} | {color:blue}
Skipped patched modules with no Java source: . {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m  0s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 41s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m  8s{color}
| {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 46s{color}
| {color:orange} root: The patch generated 1 new + 1 unchanged - 0 fixed = 2 total (was 1)
{color} |
| {color:green}+1{color} | {color:green} shellcheck {color} | {color:green}  0m  1s{color}
| {color:green} There were no new shellcheck issues. {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  0s{color} | {color:blue}
Skipped patched modules with no Java source: . {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m  0s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 43s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 30m 55s{color} | {color:red}
hadoop-ozone in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  5m 16s{color} | {color:green}
hadoop-hdds in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 21s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 50m 59s{color} | {color:black}
{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdds.scm.pipeline.TestSCMRestart |
|   | hadoop.ozone.container.common.statemachine.commandhandler.TestCloseContainerByPipeline
|
|   | hadoop.hdds.scm.pipeline.TestRatisPipelineProvider |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8f97d6f |
| JIRA Issue | HDDS-1017 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12958034/HDDS-1017.007.patch
|
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  checkstyle  shellcheck  |
| uname | Linux 3d99c8caf432 4.4.0-138-generic #164~14.04.1-Ubuntu SMP Fri Oct 5 08:56:16
UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HDDS-Build/ozone.sh |
| git revision | trunk / a140a89 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_191 |
| shellcheck | v0.4.6 |
| checkstyle | https://builds.apache.org/job/PreCommit-HDDS-Build/2209/artifact/out/diff-checkstyle-root.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDDS-Build/2209/artifact/out/patch-unit-hadoop-ozone.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDDS-Build/2209/testReport/ |
| Max. process+thread count | 1111 (vs. ulimit of 10000) |
| modules | C: hadoop-hdds hadoop-hdds/client hadoop-hdds/common hadoop-hdds/container-service
hadoop-hdds/server-scm hadoop-ozone hadoop-ozone/client hadoop-ozone/common hadoop-ozone/dist
hadoop-ozone/objectstore-service hadoop-ozone/ozone-manager hadoop-ozone/ozonefs hadoop-ozone/tools
U: . |
| Console output | https://builds.apache.org/job/PreCommit-HDDS-Build/2209/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Use distributed tracing to indentify performance problems in Ozone
> ------------------------------------------------------------------
>
>                 Key: HDDS-1017
>                 URL: https://issues.apache.org/jira/browse/HDDS-1017
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HDDS-1017.001.patch, HDDS-1017.002.patch, HDDS-1017.003.patch, HDDS-1017.004.patch,
HDDS-1017.005.patch, HDDS-1017.006.patch, HDDS-1017.007.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> In the recent months multiple performance issues are resolved in OM/SCM and datanode
sides. To identify the remaining problems a distributed tracing framework would help a lot.
> In HADOOP-15566 there is an ongoing discussion to remove the discontinued HTrace and
use something else instead. Until now without any conclusion, but
>  1). There is one existing poc in the jira which uses opentracing
>  2). It was suggested to "evaluating all the options" before a final decision 
> As an evaluation step we would like to investigate the performance of ozone components
with opentracing. This patch can help us to find the performance problem but can be reverted
when we will have a final solution in HADOOP-15566 about the common tracing library.
> To make it lightweight we can use the ozone message level tracing identifier for context
propagation instead of modifying the existing hadoop rpc framework. 



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