[ https://issues.apache.org/jira/browse/HDFS-13183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17109977#comment-17109977 ]
Hadoop QA commented on HDFS-13183: ---------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 1m 22s{color} | {color:blue} Docker mode activated. {color} | || || || || {color:brown} Prechecks {color} || | {color:green}+1{color} | {color:green} dupname {color} | {color:green} 0m 0s{color} | {color:green} No case conflicting files found. {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:red}-1{color} | {color:red} mvninstall {color} | {color:red} 22m 3s{color} | {color:red} root in trunk failed. {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 9s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 45s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 14s{color} | {color:green} trunk passed {color} | | {color:red}-1{color} | {color:red} shadedclient {color} | {color:red} 18m 9s{color} | {color:red} branch has errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 40s{color} | {color:green} trunk passed {color} | | {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 3m 0s{color} | {color:blue} Used deprecated FindBugs config; considering switching to SpotBugs. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 58s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 8s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 3s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 3s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 41s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 8s{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:red}-1{color} | {color:red} shadedclient {color} | {color:red} 15m 59s{color} | {color:red} patch has errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 39s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m 3s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} unit {color} | {color:red}114m 14s{color} | {color:red} hadoop-hdfs in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 35s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}187m 1s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.hdfs.TestDistributedFileSystem | | | hadoop.hdfs.TestDFSInputStream | | | hadoop.hdfs.server.balancer.TestBalancerWithHANameNodes | | | hadoop.hdfs.server.balancer.TestBalancerWithNodeGroup | \\ \\ || Subsystem || Report/Notes || | Docker | ClientAPI=1.40 ServerAPI=1.40 base: https://builds.apache.org/job/PreCommit-HDFS-Build/29317/artifact/out/Dockerfile | | JIRA Issue | HDFS-13183 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/13003241/HDFS-13183.007.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux dce5a9c87862 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | personality/hadoop.sh | | git revision | trunk / a3809d20230 | | Default Java | Private Build-1.8.0_252-8u252-b09-1~18.04-b09 | | mvninstall | https://builds.apache.org/job/PreCommit-HDFS-Build/29317/artifact/out/branch-mvninstall-root.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/29317/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/29317/testReport/ | | Max. process+thread count | 2624 (vs. ulimit of 5500) | | modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/29317/console | | versions | git=2.17.1 maven=3.6.0 findbugs=3.1.0-RC1 | | Powered by | Apache Yetus 0.12.0 https://yetus.apache.org | This message was automatically generated. > Standby NameNode process getBlocks request to reduce Active load > ---------------------------------------------------------------- > > Key: HDFS-13183 > URL: https://issues.apache.org/jira/browse/HDFS-13183 > Project: Hadoop HDFS > Issue Type: Improvement > Components: balancer & mover, namenode > Reporter: Xiaoqiao He > Assignee: Xiaoqiao He > Priority: Major > Attachments: HDFS-13183-trunk.001.patch, HDFS-13183-trunk.002.patch, > HDFS-13183-trunk.003.patch, HDFS-13183.004.patch, HDFS-13183.005.patch, > HDFS-13183.006.patch, HDFS-13183.007.patch > > > The performance of Active NameNode could be impact when {{Balancer}} requests > #getBlocks, since query blocks of overly full DNs performance is extremely > inefficient currently. The main reason is {{NameNodeRpcServer#getBlocks}} > hold read lock for long time. In extreme case, all handlers of Active > NameNode RPC server are occupied by one reader > {{NameNodeRpcServer#getBlocks}} and other write operation calls, thus Active > NameNode enter a state of false death for number of seconds even for minutes. > The similar performance concerns of Balancer have reported by HDFS-9412, > HDFS-7967, etc. > If Standby NameNode can shoulder #getBlocks heavy burden, it could speed up > the progress of balancing and reduce performance impact to Active NameNode. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org