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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10175) add per-operation stats to FileSystem.Statistics
Date Thu, 21 Apr 2016 01:05:25 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15251041#comment-15251041
] 

Hadoop QA commented on HDFS-10175:
----------------------------------

| (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: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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 45s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 44s {color} |
{color:green} trunk passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 38s {color} |
{color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 23s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 57s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 34s {color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 56s {color} |
{color:green} trunk passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 3s {color} | {color:green}
trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 41s {color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 53s {color} |
{color:green} the patch passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 5m 53s {color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 42s {color} |
{color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 42s {color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 23s {color} | {color:red}
hadoop-common-project/hadoop-common: patch generated 29 new + 131 unchanged - 0 fixed = 160
total (was 131) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 55s {color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color}
| {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s {color} | {color:red}
The patch has 2 line(s) that end in whitespace. Use git apply --whitespace=fix. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 52s {color} | {color:red}
hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was
0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 53s {color} |
{color:green} the patch passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 4s {color} | {color:green}
the patch passed with JDK v1.7.0_95 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 7m 37s {color} | {color:red}
hadoop-common in the patch failed with JDK v1.8.0_77. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 7m 44s {color} | {color:red}
hadoop-common in the patch failed with JDK v1.7.0_95. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 24s {color}
| {color:green} Patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 60m 0s {color} | {color:black}
{color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-common-project/hadoop-common |
|  |  Should org.apache.hadoop.fs.FileSystemStorageStatistics$LongStatisticIterator be a _static_
inner class?  At FileSystemStorageStatistics.java:inner class?  At FileSystemStorageStatistics.java:[lines
50-74] |
| JDK v1.8.0_77 Failed junit tests | hadoop.fs.TestFilterFileSystem |
|   | hadoop.fs.TestHarFileSystem |
| JDK v1.7.0_95 Failed junit tests | hadoop.fs.TestFilterFileSystem |
|   | hadoop.fs.TestHarFileSystem |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:fbe3e86 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12799860/HDFS-10175.006.patch
|
| JIRA Issue | HDFS-10175 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  |
| uname | Linux 7311e739f2f9 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 63ac2db |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_77 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95
|
| findbugs | v3.0.0 |
| checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/diff-checkstyle-hadoop-common-project_hadoop-common.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/whitespace-eol.txt
|
| findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/new-findbugs-hadoop-common-project_hadoop-common.html
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.8.0_77.txt
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_95.txt
|
| unit test logs |  https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.8.0_77.txt
https://builds.apache.org/job/PreCommit-HDFS-Build/15230/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common-jdk1.7.0_95.txt
|
| JDK v1.7.0_95  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/testReport/
|
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
|
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/15230/console |
| Powered by | Apache Yetus 0.2.0   http://yetus.apache.org |


This message was automatically generated.



> add per-operation stats to FileSystem.Statistics
> ------------------------------------------------
>
>                 Key: HDFS-10175
>                 URL: https://issues.apache.org/jira/browse/HDFS-10175
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs-client
>            Reporter: Ram Venkatesh
>            Assignee: Mingliang Liu
>         Attachments: HDFS-10175.000.patch, HDFS-10175.001.patch, HDFS-10175.002.patch,
HDFS-10175.003.patch, HDFS-10175.004.patch, HDFS-10175.005.patch, HDFS-10175.006.patch, TestStatisticsOverhead.java
>
>
> Currently FileSystem.Statistics exposes the following statistics:
> BytesRead
> BytesWritten
> ReadOps
> LargeReadOps
> WriteOps
> These are in-turn exposed as job counters by MapReduce and other frameworks. There is
logic within DfsClient to map operations to these counters that can be confusing, for instance,
mkdirs counts as a writeOp.
> Proposed enhancement:
> Add a statistic for each DfsClient operation including create, append, createSymlink,
delete, exists, mkdirs, rename and expose them as new properties on the Statistics object.
The operation-specific counters can be used for analyzing the load imposed by a particular
job on HDFS. 
> For example, we can use them to identify jobs that end up creating a large number of
files.
> Once this information is available in the Statistics object, the app frameworks like
MapReduce can expose them as additional counters to be aggregated and recorded as part of
job summary.



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