[
https://issues.apache.org/jira/browse/HDFS-15160?focusedWorklogId=644595&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-644595
]
ASF GitHub Bot logged work on HDFS-15160:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 31/Aug/21 19:40
Start Date: 31/Aug/21 19:40
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3200:
URL: https://github.com/apache/hadoop/pull/3200#issuecomment-909552788
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 8m 8s | | 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 9 new or modified test files. |
|||| _ branch-3.2 Compile Tests _ |
| +0 :ok: | mvndep | 3m 50s | | Maven dependency ordering for branch |
| +1 :green_heart: | mvninstall | 24m 44s | | branch-3.2 passed |
| +1 :green_heart: | compile | 16m 34s | | branch-3.2 passed |
| +1 :green_heart: | checkstyle | 2m 28s | | branch-3.2 passed |
| +1 :green_heart: | mvnsite | 2m 40s | | branch-3.2 passed |
| +1 :green_heart: | javadoc | 2m 16s | | branch-3.2 passed |
| +1 :green_heart: | spotbugs | 4m 59s | | branch-3.2 passed |
| +1 :green_heart: | shadedclient | 14m 51s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +0 :ok: | mvndep | 0m 23s | | Maven dependency ordering for patch |
| +1 :green_heart: | mvninstall | 1m 57s | | the patch passed |
| +1 :green_heart: | compile | 14m 24s | | the patch passed |
| -1 :x: | javac | 14m 24s |
[/results-compile-javac-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3200/6/artifact/out/results-compile-javac-root.txt)
| root generated 1 new + 1587 unchanged - 1 fixed = 1588 total (was 1588) |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 2m 33s | | root: The patch generated
0 new + 569 unchanged - 1 fixed = 569 total (was 570) |
| +1 :green_heart: | mvnsite | 2m 44s | | the patch passed |
| +1 :green_heart: | xml | 0m 1s | | The patch has no ill-formed XML
file. |
| +1 :green_heart: | javadoc | 2m 19s | | the patch passed |
| +1 :green_heart: | spotbugs | 5m 22s | | the patch passed |
| +1 :green_heart: | shadedclient | 15m 20s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 15m 54s | | hadoop-common in the patch
passed. |
| -1 :x: | unit | 174m 57s |
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3200/6/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch failed. |
| +1 :green_heart: | asflicense | 1m 3s | | The patch does not
generate ASF License warnings. |
| | | 316m 39s | | |
| Reason | Tests |
|-------:|:------|
| Failed junit tests | hadoop.hdfs.server.namenode.ha.TestHAAppend |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3200/6/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/3200 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell xml |
| uname | Linux 8ac03118cb9f 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 | branch-3.2 / 29a98320b76d60afb481f729456fbb9db1c37287 |
| Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~18.04-b10 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3200/6/testReport/ |
| Max. process+thread count | 3189 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs U: . |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3200/6/console |
| versions | git=2.17.1 maven=3.6.0 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: 644595)
Time Spent: 3.5h (was: 3h 20m)
> ReplicaMap, Disk Balancer, Directory Scanner and various FsDatasetImpl
> methods should use datanode readlock
> -----------------------------------------------------------------------------------------------------------
>
> Key: HDFS-15160
> URL: https://issues.apache.org/jira/browse/HDFS-15160
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 3.3.0
> Reporter: Stephen O'Donnell
> Assignee: Stephen O'Donnell
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.1, 3.4.0
>
> Attachments: HDFS-15160-branch-3.3-001.patch, HDFS-15160.001.patch,
> HDFS-15160.002.patch, HDFS-15160.003.patch, HDFS-15160.004.patch,
> HDFS-15160.005.patch, HDFS-15160.006.patch, HDFS-15160.007.patch,
> HDFS-15160.008.patch, HDFS-15160.branch-3-3.001.patch,
> image-2020-04-10-17-18-08-128.png, image-2020-04-10-17-18-55-938.png
>
> Time Spent: 3.5h
> Remaining Estimate: 0h
>
> Now we have HDFS-15150, we can start to move some DN operations to use the
> read lock rather than the write lock to improve concurrence. The first step
> is to make the changes to ReplicaMap, as many other methods make calls to it.
> This Jira switches read operations against the volume map to use the readLock
> rather than the write lock.
> Additionally, some methods make a call to replicaMap.replicas() (eg
> getBlockReports, getFinalizedBlocks, deepCopyReplica) and only use the result
> in a read only fashion, so they can also be switched to using a readLock.
> Next is the directory scanner and disk balancer, which only require a read
> lock.
> Finally (for this Jira) are various "low hanging fruit" items in BlockSender
> and fsdatasetImpl where is it fairly obvious they only need a read lock.
> For now, I have avoided changing anything which looks too risky, as I think
> its better to do any larger refactoring or risky changes each in their own
> Jira.
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