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https://issues.apache.org/jira/browse/HDFS-13388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16438963#comment-16438963
]
genericqa commented on HDFS-13388:
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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} 19m
5s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 28m
30s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
46s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 4s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
29s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {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} 0m
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
44s{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} shadedclient {color} | {color:green}
12m 16s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
26s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
34s{color} | {color:green} hadoop-hdfs-client 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} 82m 58s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:8620d2b |
| JIRA Issue | HDFS-13388 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12919137/HADOOP-13388.0013.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle |
| uname | Linux 0be9f970e20e 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27
10:45:36 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 896b473 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_162 |
| findbugs | v3.1.0-RC1 |
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/23941/testReport/ |
| Max. process+thread count | 356 (vs. ulimit of 10000) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client U:
hadoop-hdfs-project/hadoop-hdfs-client |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/23941/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> RequestHedgingProxyProvider calls multiple configured NNs all the time
> ----------------------------------------------------------------------
>
> Key: HDFS-13388
> URL: https://issues.apache.org/jira/browse/HDFS-13388
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Attachments: HADOOP-13388.0001.patch, HADOOP-13388.0002.patch,
> HADOOP-13388.0003.patch, HADOOP-13388.0004.patch, HADOOP-13388.0005.patch,
> HADOOP-13388.0006.patch, HADOOP-13388.0007.patch, HADOOP-13388.0008.patch,
> HADOOP-13388.0009.patch, HADOOP-13388.0010.patch, HADOOP-13388.0011.patch,
> HADOOP-13388.0012.patch, HADOOP-13388.0013.patch
>
>
> In HDFS-7858 RequestHedgingProxyProvider was designed to "first
> simultaneously call multiple configured NNs to decide which is the active
> Namenode and then for subsequent calls it will invoke the previously
> successful NN ." But the current code call multiple configured NNs every time
> even when we already got the successful NN.
> That's because in RetryInvocationHandler.java, ProxyDescriptor's member
> proxyInfo is assigned only when it is constructed or when failover occurs.
> RequestHedgingProxyProvider.currentUsedProxy is null in both cases, so the
> only proxy we can get is always a dynamic proxy handled by
> RequestHedgingInvocationHandler.class. RequestHedgingInvocationHandler.class
> handles invoked method by calling multiple configured NNs.
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