[
https://issues.apache.org/jira/browse/HDFS-16408?focusedWorklogId=703472&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-703472
]
ASF GitHub Bot logged work on HDFS-16408:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 04/Jan/22 18:49
Start Date: 04/Jan/22 18:49
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3853:
URL: https://github.com/apache/hadoop/pull/3853#issuecomment-1005081255
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 52s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 1s | | codespell was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| -1 :x: | test4tests | 0m 0s | | The patch doesn't appear to include
any new or modified tests. Please justify why no new tests are needed for this
patch. Also please list what manual steps were performed to verify this patch.
|
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 35m 44s | | trunk passed |
| +1 :green_heart: | compile | 1m 35s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | compile | 1m 34s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | checkstyle | 1m 9s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 36s | | trunk passed |
| +1 :green_heart: | javadoc | 1m 7s | | 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 | 3m 21s | | trunk passed |
| +1 :green_heart: | shadedclient | 25m 19s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 30s | | the patch passed |
| +1 :green_heart: | compile | 1m 29s | | the patch passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javac | 1m 29s | | the patch passed |
| +1 :green_heart: | compile | 1m 22s | | the patch passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | javac | 1m 22s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -0 :warning: | checkstyle | 0m 53s |
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3853/2/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs-project/hadoop-hdfs: The patch generated 1 new + 126 unchanged
- 1 fixed = 127 total (was 127) |
| +1 :green_heart: | mvnsite | 1m 26s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 57s | | the patch passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 1m 33s | | the patch passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 3m 43s | | the patch passed |
| +1 :green_heart: | shadedclient | 25m 38s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 230m 20s | | hadoop-hdfs in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 48s | | The patch does not
generate ASF License warnings. |
| | | 341m 3s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3853/2/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/3853 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell |
| uname | Linux 3353d625be69 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 | dev-support/bin/hadoop.sh |
| git revision | trunk / a045b93ff4cd3d19e9e85c869887fbf54237de26 |
| 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-3853/2/testReport/ |
| Max. process+thread count | 3479 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3853/2/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 |
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Issue Time Tracking
-------------------
Worklog Id: (was: 703472)
Time Spent: 1h 40m (was: 1.5h)
> Negative LeaseRecheckIntervalMs will let LeaseMonitor loop forever and print
> huge amount of log
> -----------------------------------------------------------------------------------------------
>
> Key: HDFS-16408
> URL: https://issues.apache.org/jira/browse/HDFS-16408
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.1.3, 3.3.1
> Reporter: Jingxuan Fu
> Priority: Major
> Labels: pull-request-available
> Original Estimate: 1h
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> There is a problem with the try catch statement in the LeaseMonitor daemon
> (in LeaseManager.java), when an unknown exception is caught, it simply prints
> a warning message and continues with the next loop.
> An extreme case is when the configuration item
> 'dfs.namenode.lease-recheck-interval-ms' is accidentally set to a negative
> number by the user, as the configuration item is read without checking its
> range, 'fsnamesystem. getLeaseRecheckIntervalMs()' returns this value and is
> used as an argument to Thread.sleep(). A negative argument will cause
> Thread.sleep() to throw an IllegalArgumentException, which will be caught by
> 'catch(Throwable e)' and a warning message will be printed.
> This behavior is repeated for each subsequent loop. This means that a huge
> amount of repetitive messages will be printed to the log file in a short
> period of time, quickly consuming disk space and affecting the operation of
> the system.
> As you can see, 178M log files are generated in one minute.
>
> {code:java}
> ll logs/
> total 174456
> drwxrwxr-x 2 hadoop hadoop 4096 1月 3 15:13 ./
> drwxr-xr-x 11 hadoop hadoop 4096 1月 3 15:13 ../
> -rw-rw-r-- 1 hadoop hadoop 36342 1月 3 15:14
> hadoop-hadoop-datanode-ljq1.log
> -rw-rw-r-- 1 hadoop hadoop 1243 1月 3 15:13
> hadoop-hadoop-datanode-ljq1.out
> -rw-rw-r-- 1 hadoop hadoop 178545466 1月 3 15:14
> hadoop-hadoop-namenode-ljq1.log
> -rw-rw-r-- 1 hadoop hadoop 692 1月 3 15:13
> hadoop-hadoop-namenode-ljq1.out
> -rw-rw-r-- 1 hadoop hadoop 33201 1月 3 15:14
> hadoop-hadoop-secondarynamenode-ljq1.log
> -rw-rw-r-- 1 hadoop hadoop 3764 1月 3 15:14
> hadoop-hadoop-secondarynamenode-ljq1.out
> -rw-rw-r-- 1 hadoop hadoop 0 1月 3 15:13 SecurityAuth-hadoop.audit
>
> tail -n 15 logs/hadoop-hadoop-namenode-ljq1.log
> 2022-01-03 15:14:46,032 WARN
> org.apache.hadoop.hdfs.server.namenode.LeaseManager: Unexpected throwable:
> java.lang.IllegalArgumentException: timeout value is negative
> at java.base/java.lang.Thread.sleep(Native Method)
> at
> org.apache.hadoop.hdfs.server.namenode.LeaseManager$Monitor.run(LeaseManager.java:534)
> at java.base/java.lang.Thread.run(Thread.java:829)
> 2022-01-03 15:14:46,033 WARN
> org.apache.hadoop.hdfs.server.namenode.LeaseManager: Unexpected throwable:
> java.lang.IllegalArgumentException: timeout value is negative
> at java.base/java.lang.Thread.sleep(Native Method)
> at
> org.apache.hadoop.hdfs.server.namenode.LeaseManager$Monitor.run(LeaseManager.java:534)
> at java.base/java.lang.Thread.run(Thread.java:829)
> 2022-01-03 15:14:46,033 WARN
> org.apache.hadoop.hdfs.server.namenode.LeaseManager: Unexpected throwable:
> java.lang.IllegalArgumentException: timeout value is negative
> at java.base/java.lang.Thread.sleep(Native Method)
> at
> org.apache.hadoop.hdfs.server.namenode.LeaseManager$Monitor.run(LeaseManager.java:534)
> at java.base/java.lang.Thread.run(Thread.java:829)
> {code}
>
> I think there are two potential solutions.
> The first is to adjust the position of the try catch statement in the
> LeaseMonitor daemon by moving 'catch(Throwable e)' to the outside of the loop
> body. This can be done like the NameNodeResourceMonitor daemon, which ends
> the thread when an unexpected exception is caught.
> The second is to use Precondition.checkArgument() to scope the configuration
> item 'dfs.namenode.lease-recheck-interval-ms' when it is read, to avoid the
> wrong configuration item can affect the subsequent operation of the program.
>
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