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https://issues.apache.org/jira/browse/HADOOP-14035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16039225#comment-16039225
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Hadoop QA commented on HADOOP-14035:
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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} 12m
58s{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 3 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
50s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m
40s{color} | {color:green} branch-2 passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m
39s{color} | {color:green} branch-2 passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
30s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
59s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
48s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
42s{color} | {color:green} branch-2 passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
53s{color} | {color:green} branch-2 passed with JDK v1.7.0_131 {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
46s{color} | {color:green} the patch passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 5m
46s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m
56s{color} | {color:green} the patch passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m
56s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 29s{color} | {color:orange} hadoop-common-project/hadoop-common: The patch
generated 2 new + 295 unchanged - 1 fixed = 297 total (was 296) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
0s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
1s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
5s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
44s{color} | {color:green} the patch passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
53s{color} | {color:green} the patch passed with JDK v1.7.0_131 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m
48s{color} | {color:green} hadoop-common in the patch passed with JDK
v1.7.0_131. {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} 73m 33s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:5e40efe |
| JIRA Issue | HADOOP-14035 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12871620/HADOOP-14035.branch-2.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle |
| uname | Linux cf1b1265381f 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 | branch-2 / e889c82 |
| Default Java | 1.7.0_131 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_131
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_131 |
| findbugs | v3.0.0 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HADOOP-Build/12453/artifact/patchprocess/diff-checkstyle-hadoop-common-project_hadoop-common.txt
|
| JDK v1.7.0_131 Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/12453/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/12453/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Reduce fair call queue backoff's impact on clients
> --------------------------------------------------
>
> Key: HADOOP-14035
> URL: https://issues.apache.org/jira/browse/HADOOP-14035
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: ipc
> Affects Versions: 2.7.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HADOOP-14035.branch-2.patch, HADOOP-14035.patch
>
>
> When fcq backoff is enabled and an abusive client overflows the call queue,
> its connection is closed, as well as subsequent good client connections.
> Disconnects are very disruptive, esp. to multi-threaded clients with multiple
> outstanding requests, or clients w/o a retry proxy (ex. datanodes).
> Until the abusive user is downgraded to a lower priority queue,
> disconnect/reconnect mayhem occurs which significantly degrades performance.
> Server metrics look good despite horrible client latency.
> The fcq should utilize selective ipc disconnects to avoid pushback
> disconnecting good clients.
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