[jira] [Commented] (HDFS-14783) expired SampleStat need to be removed from SlowPeersReport
[
https://issues.apache.org/jira/browse/HDFS-14783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17060974#comment-17060974
]
Hadoop QA commented on HDFS-14783:
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.8 Server=19.03.8 Image:yetus/hadoop:c44943d1fc3 |
| JIRA Issue | HDFS-14783 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12996924/HDFS-14783-003.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux 39bb0473565a 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 1975479 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_242 |
| findbugs | v3.1.0-RC1 |
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/28968/testReport/ |
| Max. process+thread count | 1419 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
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This message was automatically generated.
> expired SampleStat need to be removed from SlowPeersReport
>
[jira] [Commented] (HDFS-14783) expired SampleStat need to be removed from SlowPeersReport
[
https://issues.apache.org/jira/browse/HDFS-14783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17060902#comment-17060902
]
Haibin Huang commented on HDFS-14783:
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update patch, fix bug and checkstyle
> expired SampleStat need to be removed from SlowPeersReport
> --
>
> 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, HDFS-14783-002.patch,
> HDFS-14783-003.patch
>
>
> SlowPeersReport is calculated by the SampleStat between tow dn, so it can
> present on nn's jmx like this:
> {code:java}
> "SlowPeersReport" :[{"SlowNode":"dn2","ReportingNodes":["dn1"]}]
> {code}
> the SampleStat is stored in a LinkedBlockingDeque, it won't be
> removed until the queue is full and a newest one is generated. Therefore, if
> dn1 don't send any packet to dn2 for a long time, the old SampleStat will
> keep staying in the queue, and will be used to calculated slowpeer.I think
> these old SampleStats should be considered as expired message and ignore them
> when generating a new SlowPeersReport.
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[jira] [Commented] (HDFS-14783) expired SampleStat need to be removed from SlowPeersReport
[
https://issues.apache.org/jira/browse/HDFS-14783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17060869#comment-17060869
]
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} 0m
27s{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} 18m
3s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 15m
21s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
48s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
19s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
15m 33s{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} 1m
59s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
2s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
46s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 14m
38s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 14m
38s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 47s{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
16s{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} |
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13m 23s{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} 2m
11s{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
2s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 8m 54s{color}
| {color:red} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
49s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 98m 35s{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 155] |
| Failed junit tests | hadoop.metrics2.source.TestJvmMetrics |
| | hadoop.ipc.TestIPC |
| | hadoop.security.token.delegation.TestZKDelegationTokenSecretManager |
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.8 Server=19.03.8 Image:yetus/hadoop:c44943d1fc3 |
| JIRA Issue | HDFS-14783 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12996881/HDFS-14783-002.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux ab2d59fdc8d6 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 1975479 |
| maven | version: Apache Maven 3.3.9
[jira] [Commented] (HDFS-14783) expired SampleStat need to be removed from SlowPeersReport
[
https://issues.apache.org/jira/browse/HDFS-14783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17060623#comment-17060623
]
Haibin Huang commented on HDFS-14783:
-
[~ayushtkn] [~elgoiri] , can you take a look for this, thanks.
> expired SampleStat need to be removed from SlowPeersReport
> --
>
> 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, HDFS-14783-002.patch
>
>
> SlowPeersReport is calculated by the SampleStat between tow dn, so it can
> present on nn's jmx like this:
> {code:java}
> "SlowPeersReport" :[{"SlowNode":"dn2","ReportingNodes":["dn1"]}]
> {code}
> the SampleStat is stored in a LinkedBlockingDeque, it won't be
> removed until the queue is full and a newest one is generated. Therefore, if
> dn1 don't send any packet to dn2 for a long time, the old SampleStat will
> keep staying in the queue, and will be used to calculated slowpeer.I think
> these old SampleStats should be considered as expired message and ignore them
> when generating a new SlowPeersReport.
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