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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12277) NNThroughputBenchmark should use cumulativeTime to calculate ops per second.
Date Wed, 09 Aug 2017 00:37:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119246#comment-16119246
] 

Hadoop QA commented on HDFS-12277:
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 32s{color} | {color:blue}
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| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  0s{color} |
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| {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 17m 39s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  9s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 50s{color}
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 17s{color} |
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| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  2m  8s{color} | {color:red}
hadoop-hdfs-project/hadoop-hdfs in trunk has 9 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 48s{color} |
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|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m  6s{color}
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the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 43s{color}
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  5s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
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|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}102m  1s{color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 23s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}135m 25s{color} | {color:black}
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HDFS-12277 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12880919/HDFS-12277.001.patch
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| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux c61e8a1e1f41 3.13.0-116-generic #163-Ubuntu SMP Fri Mar 31 14:13:22 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 71b8dda |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/20603/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs-warnings.html
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| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/20603/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
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|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/20603/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/20603/console |
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This message was automatically generated.



> NNThroughputBenchmark should use cumulativeTime to calculate ops per second.
> ----------------------------------------------------------------------------
>
>                 Key: HDFS-12277
>                 URL: https://issues.apache.org/jira/browse/HDFS-12277
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: benchmarks, tools
>            Reporter: Michael Han
>            Assignee: Michael Han
>            Priority: Minor
>         Attachments: HDFS-12277.000.patch, HDFS-12277.001.patch
>
>
> {{NNThroughputBenchmark$getOpsPerSecond}} is using {{elapsedTime}} to calculate ops per
second. {{elapsedTime}} is the time used to measure the time from the start to the finish
of the benchmark main thread, and it's also the total execution time of the single slowest
benchmark worker thread. To measure ops per second, we should use the total execution time
of all worker threads, which is {{cumulativeTime}}. Otherwise, we could get bogus result,
e.g. given same load, the more client threads we have (controlled by {{-threads}}), the larger
ops per second the number would be, with the same NN and its server side configurations.



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