[
https://issues.apache.org/jira/browse/HDDS-1843?focusedWorklogId=303306&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-303306
]
ASF GitHub Bot logged work on HDDS-1843:
----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Aug/19 23:57
Start Date: 28/Aug/19 23:57
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on issue #1364: HDDS-1843.
Undetectable corruption after restart of a datanode.
URL: https://github.com/apache/hadoop/pull/1364#issuecomment-525966992
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Comment |
|:----:|----------:|--------:|:--------|
| 0 | reexec | 144 | Docker mode activated. |
||| _ Prechecks _ |
| +1 | dupname | 1 | No case conflicting files found. |
| +1 | @author | 0 | The patch does not contain any @author tags. |
| +1 | test4tests | 0 | The patch appears to include 4 new or modified test
files. |
||| _ trunk Compile Tests _ |
| 0 | mvndep | 81 | Maven dependency ordering for branch |
| +1 | mvninstall | 688 | trunk passed |
| +1 | compile | 401 | trunk passed |
| +1 | checkstyle | 86 | trunk passed |
| +1 | mvnsite | 0 | trunk passed |
| +1 | shadedclient | 924 | branch has no errors when building and testing
our client artifacts. |
| +1 | javadoc | 182 | trunk passed |
| 0 | spotbugs | 444 | Used deprecated FindBugs config; considering
switching to SpotBugs. |
| +1 | findbugs | 666 | trunk passed |
||| _ Patch Compile Tests _ |
| 0 | mvndep | 36 | Maven dependency ordering for patch |
| +1 | mvninstall | 593 | the patch passed |
| +1 | compile | 417 | the patch passed |
| +1 | cc | 417 | the patch passed |
| +1 | javac | 417 | the patch passed |
| -0 | checkstyle | 42 | hadoop-hdds: The patch generated 2 new + 0
unchanged - 0 fixed = 2 total (was 0) |
| -0 | checkstyle | 40 | hadoop-ozone: The patch generated 4 new + 0
unchanged - 0 fixed = 4 total (was 0) |
| +1 | mvnsite | 0 | the patch passed |
| -1 | whitespace | 0 | The patch has 25 line(s) that end in whitespace. Use
git apply --whitespace=fix <<patch_file>>. Refer
https://git-scm.com/docs/git-apply |
| +1 | shadedclient | 752 | patch has no errors when building and testing
our client artifacts. |
| +1 | javadoc | 179 | the patch passed |
| -1 | findbugs | 272 | hadoop-hdds generated 1 new + 0 unchanged - 0 fixed
= 1 total (was 0) |
| -1 | findbugs | 422 | hadoop-ozone in the patch failed. |
||| _ Other Tests _ |
| -1 | unit | 1102 | hadoop-hdds in the patch failed. |
| -1 | unit | 506 | hadoop-ozone in the patch failed. |
| +1 | asflicense | 45 | The patch does not generate ASF License warnings. |
| | | 7750 | |
| Reason | Tests |
|-------:|:------|
| FindBugs | module:hadoop-hdds |
| |
org.apache.hadoop.ozone.container.common.impl.HddsDispatcher.dispatchRequest(ContainerProtos$ContainerCommandRequestProto,
DispatcherContext) invokes inefficient new Long(long) constructor; use
Long.valueOf(long) instead At HddsDispatcher.java:Long(long) constructor; use
Long.valueOf(long) instead At HddsDispatcher.java:[line 241] |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | Client=19.03.1 Server=19.03.1 base:
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/1364 |
| Optional Tests | dupname asflicense compile cc mvnsite javac unit javadoc
mvninstall shadedclient findbugs checkstyle |
| uname | Linux 8d1d475f5d3b 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 | personality/hadoop.sh |
| git revision | trunk / 6f2226a |
| Default Java | 1.8.0_222 |
| checkstyle |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/diff-checkstyle-hadoop-hdds.txt
|
| checkstyle |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/diff-checkstyle-hadoop-ozone.txt
|
| whitespace |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/whitespace-eol.txt
|
| findbugs |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/new-findbugs-hadoop-hdds.html
|
| findbugs |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/patch-findbugs-hadoop-ozone.txt
|
| unit |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/patch-unit-hadoop-hdds.txt
|
| unit |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/artifact/out/patch-unit-hadoop-ozone.txt
|
| Test Results |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/testReport/ |
| Max. process+thread count | 1371 (vs. ulimit of 5500) |
| modules | C: hadoop-hdds/common hadoop-hdds/container-service
hadoop-ozone/integration-test U: . |
| Console output |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1364/3/console |
| versions | git=2.7.4 maven=3.3.9 findbugs=3.1.0-RC1 |
| Powered by | Apache Yetus 0.10.0 http://yetus.apache.org |
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Issue Time Tracking
-------------------
Worklog Id: (was: 303306)
Time Spent: 4h 50m (was: 4h 40m)
> Undetectable corruption after restart of a datanode
> ---------------------------------------------------
>
> Key: HDDS-1843
> URL: https://issues.apache.org/jira/browse/HDDS-1843
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Datanode
> Affects Versions: 0.5.0
> Reporter: Shashikant Banerjee
> Assignee: Shashikant Banerjee
> Priority: Critical
> Labels: pull-request-available
> Fix For: 0.5.0
>
> Attachments: HDDS-1843.000.patch
>
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
> Right now, all write chunks use BufferedIO ie, sync flag is disabled by
> default. Also, Rocks Db metadata updates are done in Rocks DB cache first at
> Datanode. In case, there comes a situation where the buffered chunk data as
> well as the corresponding metadata update is lost as a part of datanode
> restart, it may lead to a situation where, it will not be possible to detect
> the corruption (not even with container scanner) of this nature in a
> reasonable time frame, until and unless there is a client IO failure or Recon
> server detects it over time. In order to atleast to detect the problem, Ratis
> snapshot on datanode should sync the rocks db file . In such a way,
> ContainerScanner will be able to detect this.We can also add a metric around
> sync to measure how much of a throughput loss it can incurr.
> Thanks [~msingh] for suggesting this.
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