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https://issues.apache.org/jira/browse/HDFS-10702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15429100#comment-15429100
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Hadoop QA commented on HDFS-10702:
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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
14s{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 4 new or modified test
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
47s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
39s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
31s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
4s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
15s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m
5s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 7m
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 7m
18s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
1m 40s{color} | {color:orange} root: The patch generated 10 new + 1027
unchanged - 2 fixed = 1037 total (was 1029) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
56s{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} findbugs {color} | {color:green} 5m
10s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m
57s{color} | {color:red} hadoop-hdfs-project_hadoop-hdfs generated 10 new + 7
unchanged - 0 fixed = 17 total (was 7) {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m
23s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 32s{color}
| {color:red} hadoop-hdfs-client in the patch failed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 28s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
21s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 59m 41s{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/12824658/HDFS-10702.005.patch |
| JIRA Issue | HDFS-10702 |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle cc |
| uname | Linux acbac0ae1cd5 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 / 723facf |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/16486/artifact/patchprocess/diff-checkstyle-root.txt
|
| javadoc |
https://builds.apache.org/job/PreCommit-HDFS-Build/16486/artifact/patchprocess/diff-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/16486/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-client.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/16486/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/16486/testReport/ |
| modules | C: hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/16486/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Add a Client API and Proxy Provider to enable stale read from Standby
> ---------------------------------------------------------------------
>
> Key: HDFS-10702
> URL: https://issues.apache.org/jira/browse/HDFS-10702
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Jiayi Zhou
> Assignee: Jiayi Zhou
> Priority: Minor
> Attachments: HDFS-10702.001.patch, HDFS-10702.002.patch,
> HDFS-10702.003.patch, HDFS-10702.004.patch, HDFS-10702.005.patch,
> StaleReadfromStandbyNN.pdf
>
>
> Currently, clients must always talk to the active NameNode when performing
> any metadata operation, which means active NameNode could be a bottleneck for
> scalability. One way to solve this problem is to send read-only operations to
> Standby NameNode. The disadvantage is that it might be a stale read.
> Here, I'm thinking of adding a Client API to enable/disable stale read from
> Standby which gives Client the power to set the staleness restriction.
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