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Hadoop QA commented on HDFS-14783: ---------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 1m 25s{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} 20m 3s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 18m 13s{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 16s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 14m 46s{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 1s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 26s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 53s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 41s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 16m 41s{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 46s{color} | {color:orange} hadoop-common-project/hadoop-common: The patch generated 1 new + 25 unchanged - 0 fixed = 26 total (was 25) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 21s{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} 12m 49s{color} | {color:green} patch has no errors when building and testing our client artifacts. {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 54s{color} | {color:red} hadoop-common-project/hadoop-common generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 36s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 10m 26s{color} | {color:green} hadoop-common in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 43s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}107m 7s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | FindBugs | module:hadoop-common-project/hadoop-common | | | Inconsistent synchronization of org.apache.hadoop.metrics2.lib.MutableRollingAverages.statInterval; locked 50% of time Unsynchronized access at MutableRollingAverages.java:50% of time Unsynchronized access at MutableRollingAverages.java:[line 158] | \\ \\ || Subsystem || Report/Notes || | Docker | Client=19.03.3 Server=19.03.3 Image:yetus/hadoop:104ccca9169 | | JIRA Issue | HDFS-14783 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12982778/HDFS-14783-001.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux f672ae9ebdad 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | trunk / ec86f42 | | 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/28065/artifact/out/diff-checkstyle-hadoop-common-project_hadoop-common.txt | | findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/28065/artifact/out/new-findbugs-hadoop-common-project_hadoop-common.html | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/28065/testReport/ | | Max. process+thread count | 1357 (vs. ulimit of 5500) | | modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/28065/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > expired SlowPeersReport will keep staying on namenode's jmx > ----------------------------------------------------------- > > Key: HDFS-14783 > URL: https://issues.apache.org/jira/browse/HDFS-14783 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Haibin Huang > Assignee: Haibin Huang > Priority: Major > Attachments: HDFS-14783, HDFS-14783-001.patch > > > SlowPeersReport in namenode's jmx can tell us which datanode is slow node, > and it is calculated by the average duration between two datanode sending > packet. Here is an example, if dn1 send packet to dn2 tasks too long in > average (over the *upperLimitLatency*), you will see SlowPeersReport in > namenode's jmx like this : > {code:java} > "SlowPeersReport" :[{"SlowNode":"dn2","ReportingNodes":["dn1"]}] > {code} > However, if dn1 just sending some packet to dn2 with a slow speed in the > beginning , then didn't send any packet to dn2 for a long time, which will > keep the abovementioned SlowPeersReport staying on namenode's jmx . I think > this SlowPeersReport might be an expired message, because the network between > dn1 and dn2 may have returned to normal, but the SlowPeersReport is still on > nameonode's jmx until next time dn1 sending packet to dn2. So I use a > timestamp to record when an *org.apache.hadoop.metrics2.util.SampleStat* is > created, and calculate the average duration with the valid *SampleStat ,* > which is judged by it timestamp. -- 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