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Hadoop QA commented on HDFS-12288: ---------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 2m 14s{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} 25m 1s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 24s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 54s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 25s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 16m 41s{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} 2m 44s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 30s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 29s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 14s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 14s{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 53s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch generated 2 new + 315 unchanged - 0 fixed = 317 total (was 315) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 25s{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} 15m 54s{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} 3m 2s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 24s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} unit {color} | {color:red}125m 15s{color} | {color:red} hadoop-hdfs in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 34s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}202m 59s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.hdfs.TestMaintenanceState | | | hadoop.hdfs.TestAppendSnapshotTruncate | | | hadoop.hdfs.TestErasureCodingMultipleRacks | | | hadoop.hdfs.server.namenode.TestNamenodeCapacityReport | | | hadoop.hdfs.TestDataTransferKeepalive | | | hadoop.hdfs.server.datanode.TestDataXceiverBackwardsCompat | | | hadoop.hdfs.TestErasureCodingPoliciesWithRandomECPolicy | | | hadoop.hdfs.client.impl.TestBlockReaderLocal | \\ \\ || Subsystem || Report/Notes || | Docker | Client=19.03.4 Server=19.03.4 Image:yetus/hadoop:104ccca9169 | | JIRA Issue | HDFS-12288 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12985190/HDFS-12288.004.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux ed440f695602 4.15.0-66-generic #75-Ubuntu SMP Tue Oct 1 05:24:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | trunk / dd90025 | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_222 | | findbugs | v3.1.0-RC1 | | checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/28270/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/28270/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/28270/testReport/ | | Max. process+thread count | 2700 (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/28270/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Fix DataNode's xceiver count calculation > ---------------------------------------- > > Key: HDFS-12288 > URL: https://issues.apache.org/jira/browse/HDFS-12288 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode, hdfs > Reporter: Lukas Majercak > Assignee: Chen Zhang > Priority: Major > Attachments: HDFS-12288.001.patch, HDFS-12288.002.patch, > HDFS-12288.003.patch, HDFS-12288.004.patch > > > The problem with the ThreadGroup.activeCount() method is that the method is > only a very rough estimate, and in reality returns the total number of > threads in the thread group as opposed to the threads actually running. > In some DNs, we saw this to return 50~ for a long time, even though the > actual number of DataXceiver threads was next to none. > This is a big issue as we use the xceiverCount to make decisions on the NN > for choosing replication source DN or returning DNs to clients for R/W. > The plan is to reuse the DataNodeMetrics.dataNodeActiveXceiversCount value > which only accounts for actual number of DataXcevier threads currently > running and thus represents the load on the DN much better. -- 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