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ASF GitHub Bot logged work on HADOOP-17749: ------------------------------------------- Author: ASF GitHub Bot Created on: 05/Jul/21 05:18 Start Date: 05/Jul/21 05:18 Worklog Time Spent: 10m Work Description: hadoop-yetus commented on pull request #3080: URL: https://github.com/apache/hadoop/pull/3080#issuecomment-873809787 :confetti_ball: **+1 overall** | Vote | Subsystem | Runtime | Logfile | Comment | |:----:|----------:|--------:|:--------:|:-------:| | +0 :ok: | reexec | 0m 31s | | Docker mode activated. | |||| _ Prechecks _ | | +1 :green_heart: | dupname | 0m 0s | | No case conflicting files found. | | +0 :ok: | codespell | 0m 0s | | codespell was not available. | | +1 :green_heart: | @author | 0m 0s | | The patch does not contain any @author tags. | | +1 :green_heart: | test4tests | 0m 0s | | The patch appears to include 1 new or modified test files. | |||| _ trunk Compile Tests _ | | +1 :green_heart: | mvninstall | 31m 4s | | trunk passed | | +1 :green_heart: | compile | 21m 41s | | trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | compile | 19m 0s | | trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +1 :green_heart: | checkstyle | 1m 7s | | trunk passed | | +1 :green_heart: | mvnsite | 1m 31s | | trunk passed | | +1 :green_heart: | javadoc | 1m 9s | | trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | javadoc | 1m 47s | | trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +1 :green_heart: | spotbugs | 2m 25s | | trunk passed | | +1 :green_heart: | shadedclient | 15m 51s | | branch has no errors when building and testing our client artifacts. | |||| _ Patch Compile Tests _ | | +1 :green_heart: | mvninstall | 0m 53s | | the patch passed | | +1 :green_heart: | compile | 20m 10s | | the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | javac | 20m 10s | | the patch passed | | +1 :green_heart: | compile | 18m 11s | | the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +1 :green_heart: | javac | 18m 11s | | the patch passed | | +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks issues. | | +1 :green_heart: | checkstyle | 1m 5s | | hadoop-common-project/hadoop-common: The patch generated 0 new + 6 unchanged - 7 fixed = 6 total (was 13) | | +1 :green_heart: | mvnsite | 1m 34s | | the patch passed | | +1 :green_heart: | javadoc | 1m 7s | | the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 | | +1 :green_heart: | javadoc | 1m 41s | | the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | +1 :green_heart: | spotbugs | 2m 36s | | the patch passed | | +1 :green_heart: | shadedclient | 15m 56s | | patch has no errors when building and testing our client artifacts. | |||| _ Other Tests _ | | +1 :green_heart: | unit | 17m 4s | | hadoop-common in the patch passed. | | +1 :green_heart: | asflicense | 0m 58s | | The patch does not generate ASF License warnings. | | | | 177m 51s | | | | Subsystem | Report/Notes | |----------:|:-------------| | Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3080/7/artifact/out/Dockerfile | | GITHUB PR | https://github.com/apache/hadoop/pull/3080 | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell | | uname | Linux bf2c58d82d3f 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | dev-support/bin/hadoop.sh | | git revision | trunk / e822825ed6c96e1094c24031650528b578143e08 | | Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 | | Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3080/7/testReport/ | | Max. process+thread count | 1549 (vs. ulimit of 5500) | | modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common | | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3080/7/console | | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 | | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org | This message was automatically generated. -- This is an automated message from the Apache Git Service. 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To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 618528) Time Spent: 3h 50m (was: 3h 40m) > Remove lock contention in SelectorPool of SocketIOWithTimeout > ------------------------------------------------------------- > > Key: HADOOP-17749 > URL: https://issues.apache.org/jira/browse/HADOOP-17749 > Project: Hadoop Common > Issue Type: Improvement > Components: common > Reporter: Xuesen Liang > Priority: Major > Labels: pull-request-available > Time Spent: 3h 50m > Remaining Estimate: 0h > > *SelectorPool* in > hadoop-common/src/main/java/org/apache/hadoop/net/*SocketIOWithTimeout.java* > is a point of lock contention. > For example: > {code:java} > $ grep 'waiting to lock <0x00007f7d94006d90>' 63692.jstack | uniq -c > 1005 - waiting to lock <0x00007f7d94006d90> (a > org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool) > {code} > and the thread stack is as follows: > {code:java} > "IPC Client (324579982) connection to /100.10.6.10:60020 from user_00" #14139 > daemon prio=5 os_prio=0 tid=0x00007f7374039000 nid=0x85cc waiting for monitor > entry [0x00007f6f45939000] > java.lang.Thread.State: BLOCKED (on object monitor) > at > org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.get(SocketIOWithTimeout.java:390) > - waiting to lock <0x00007f7d94006d90> (a > org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool) > at > org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:325) > at > org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:157) > at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161) > at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131) > at java.io.FilterInputStream.read(FilterInputStream.java:133) > at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) > at java.io.BufferedInputStream.read(BufferedInputStream.java:265) > - locked <0x00007fa818caf258> (a java.io.BufferedInputStream) > at java.io.DataInputStream.readInt(DataInputStream.java:387) > at > org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.readResponse(RpcClientImpl.java:967) > at > org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.run(RpcClientImpl.java:568) > {code} > We should remove the lock contention. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org