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https://issues.apache.org/jira/browse/MAPREDUCE-6197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15328477#comment-15328477
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Hadoop QA commented on MAPREDUCE-6197:
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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 12s
{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} 6m
44s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 15s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
12s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 18s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
13s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m
23s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 12s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
12s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 12s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 12s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 10s
{color} | {color:red}
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle:
The patch generated 8 new + 90 unchanged - 1 fixed = 98 total (was 91) {color}
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 15s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
12s {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 21 line(s) that end in whitespace. Use git
apply --whitespace=fix. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m
26s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 10s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 16s
{color} | {color:green} hadoop-mapreduce-client-shuffle in the patch passed.
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
16s {color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 11m 17s {color}
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:2c91fd8 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12810092/MAPREDUCE-6197.patch |
| JIRA Issue | MAPREDUCE-6197 |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux a46ee62cc804 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 / 709a814 |
| Default Java | 1.8.0_91 |
| findbugs | v3.0.0 |
| checkstyle |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6552/artifact/patchprocess/diff-checkstyle-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-shuffle.txt
|
| whitespace |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6552/artifact/patchprocess/whitespace-eol.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6552/testReport/ |
| modules | C:
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle
U:
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle
|
| Console output |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/6552/console |
| Powered by | Apache Yetus 0.3.0 http://yetus.apache.org |
This message was automatically generated.
> Cache MapOutputLocations in ShuffleHandler
> ------------------------------------------
>
> Key: MAPREDUCE-6197
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6197
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Siddharth Seth
> Assignee: Junping Du
> Attachments: MAPREDUCE-6197.patch
>
>
> ShuffleHandler currently seems to create a map of mapId - mapInfo (file.out /
> index information) when it receives a message.
> This should be caching map info across requests, so that the a scan of all
> directories is not required for each reducer fetching from the same map.
> Also, the scan for each map output / index file is performed twice per mapId
> within a request. In populateHeaders - once in the call to getMapOutputInfo,
> and then directly in the method.
> For an invocation where we do end up with more than 1000 (default) mapIds in
> a single call, and don't cache them in the map - the path constructed for
> such entries will be invalid. This is highly unlikely to be the case though,
> until there's proper caching.
> {code}
> MapOutputInfo info = mapOutputInfoMap.get(mapId);
> if (info == null) {
> info = getMapOutputInfo(outputBasePathStr, mapId, reduceId, user);
> }
> {code}
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