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https://issues.apache.org/jira/browse/HDFS-14783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16949558#comment-16949558
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Hadoop QA commented on HDFS-14783:
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| (x) *{color:red}-1 overall{color}* |
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|| 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} |
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|| 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] |
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|| 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.
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