[ https://issues.apache.org/jira/browse/HDFS-10702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15428971#comment-15428971 ]
Hadoop QA commented on HDFS-10702: ---------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || 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 4 new or modified test files. {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 16s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 46s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 56s{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 37s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 45s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 32s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 1s{color} | {color:green} trunk passed {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 14s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 58s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 46s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} cc {color} | {color:green} 6m 46s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 46s{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 1m 39s{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 20s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 39s{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 2s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 3s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m 12s{color} | {color:green} hadoop-common in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 55s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 83m 13s{color} | {color:red} hadoop-hdfs in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 28s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}140m 23s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.hdfs.server.namenode.ha.TestQuotasWithHA | | | hadoop.hdfs.server.namenode.ha.TestXAttrsWithHA | | | hadoop.hdfs.server.namenode.ha.TestFailureToReadEdits | | | hadoop.hdfs.server.namenode.ha.TestStandbyIsHot | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:9560f25 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12824629/HDFS-10702.004.patch | | JIRA Issue | HDFS-10702 | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle cc | | uname | Linux 5510bd6b69c2 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 / 763f049 | | Default Java | 1.8.0_101 | | findbugs | v3.0.0 | | checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/16484/artifact/patchprocess/diff-checkstyle-root.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/16484/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/16484/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/16484/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, 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org