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https://issues.apache.org/jira/browse/HADOOP-12765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15427123#comment-15427123
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Hadoop QA commented on HADOOP-12765:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
18s{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 2 new or modified test
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
14s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
5s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m
6s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
50s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
49s{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:
hadoop-project {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
7s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
30s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
16s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
29s{color} | {color:green} root: The patch generated 0 new + 81 unchanged - 1
fixed = 81 total (was 82) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 1m
2s{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} xml {color} | {color:green} 0m
2s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-project {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m
15s{color} | {color:green} hadoop-project in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m
16s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m
16s{color} | {color:green} hadoop-kms in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m
47s{color} | {color:green} hadoop-hdfs-httpfs in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
27s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 79m 48s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:9560f25 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12824419/HADOOP-12765.005.patch
|
| JIRA Issue | HADOOP-12765 |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit xml findbugs checkstyle |
| uname | Linux e17215c58626 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 / ae4db25 |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10300/testReport/ |
| modules | C: hadoop-project hadoop-common-project/hadoop-common
hadoop-common-project/hadoop-kms hadoop-hdfs-project/hadoop-hdfs-httpfs U: . |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10300/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> HttpServer2 should switch to using the non-blocking SslSelectChannelConnector
> to prevent performance degradation when handling SSL connections
> ----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-12765
> URL: https://issues.apache.org/jira/browse/HADOOP-12765
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.7.2, 2.6.3
> Reporter: Min Shen
> Assignee: Min Shen
> Attachments: HADOOP-12765.001.patch, HADOOP-12765.001.patch,
> HADOOP-12765.002.patch, HADOOP-12765.003.patch, HADOOP-12765.004.patch,
> HADOOP-12765.005.patch, blocking_1.png, blocking_2.png, unblocking.png
>
>
> The current implementation uses the blocking SslSocketConnector which takes
> the default maxIdleTime as 200 seconds. We noticed in our cluster that when
> users use a custom client that accesses the WebHDFS REST APIs through https,
> it could block all the 250 handler threads in NN jetty server, causing severe
> performance degradation for accessing WebHDFS and NN web UI. Attached
> screenshots (blocking_1.png and blocking_2.png) illustrate that when using
> SslSocketConnector, the jetty handler threads are not released until the 200
> seconds maxIdleTime has passed. With sufficient number of SSL connections,
> this issue could render NN HttpServer to become entirely irresponsive.
> We propose to use the non-blocking SslSelectChannelConnector as a fix. We
> have deployed the attached patch within our cluster, and have seen
> significant improvement. The attached screenshot (unblocking.png) further
> illustrates the behavior of NN jetty server after switching to using
> SslSelectChannelConnector.
> The patch further disables SSLv3 protocol on server side to preserve the
> spirit of HADOOP-11260.
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