[
https://issues.apache.org/jira/browse/HADOOP-16852?focusedWorklogId=639818&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-639818
]
ASF GitHub Bot logged work on HADOOP-16852:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 19/Aug/21 12:40
Start Date: 19/Aug/21 12:40
Worklog Time Spent: 10m
Work Description: hadoop-yetus removed a comment on pull request #1898:
URL: https://github.com/apache/hadoop/pull/1898#issuecomment-610182688
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Comment |
|:----:|----------:|--------:|:--------|
| +0 :ok: | reexec | 1m 28s | Docker mode activated. |
||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | No case conflicting files
found. |
| +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
1 new or modified test files. |
||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 22m 15s | trunk passed |
| +1 :green_heart: | compile | 0m 28s | trunk passed |
| +1 :green_heart: | checkstyle | 0m 21s | trunk passed |
| +1 :green_heart: | mvnsite | 0m 29s | trunk passed |
| +1 :green_heart: | shadedclient | 16m 35s | branch has no errors when
building and testing our client artifacts. |
| +1 :green_heart: | javadoc | 0m 22s | trunk passed |
| +0 :ok: | spotbugs | 0m 57s | Used deprecated FindBugs config;
considering switching to SpotBugs. |
| +1 :green_heart: | findbugs | 0m 53s | trunk passed |
| -0 :warning: | patch | 1m 13s | Used diff version of patch file.
Binary files and potentially other changes not applied. Please rebase and
squash commits if necessary. |
||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 27s | the patch passed |
| +1 :green_heart: | compile | 0m 22s | the patch passed |
| +1 :green_heart: | javac | 0m 22s | the patch passed |
| +1 :green_heart: | checkstyle | 0m 16s | the patch passed |
| +1 :green_heart: | mvnsite | 0m 25s | the patch passed |
| +1 :green_heart: | whitespace | 0m 0s | The patch has no whitespace
issues. |
| +1 :green_heart: | shadedclient | 15m 36s | patch has no errors when
building and testing our client artifacts. |
| +1 :green_heart: | javadoc | 0m 19s | the patch passed |
| +1 :green_heart: | findbugs | 0m 53s | the patch passed |
||| _ Other Tests _ |
| +1 :green_heart: | unit | 1m 24s | hadoop-azure in the patch passed.
|
| +1 :green_heart: | asflicense | 0m 28s | The patch does not generate
ASF License warnings. |
| | | 64m 38s | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | Client=19.03.8 Server=19.03.8 base:
https://builds.apache.org/job/hadoop-multibranch/job/PR-1898/8/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/1898 |
| JIRA Issue | HADOOP-16852 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle |
| uname | Linux 62d9b5860a70 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19
08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 0b855b9 |
| Default Java | 1.8.0_242 |
| Test Results |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1898/8/testReport/ |
| Max. process+thread count | 307 (vs. ulimit of 5500) |
| modules | C: hadoop-tools/hadoop-azure U: hadoop-tools/hadoop-azure |
| Console output |
https://builds.apache.org/job/hadoop-multibranch/job/PR-1898/8/console |
| versions | git=2.7.4 maven=3.3.9 findbugs=3.1.0-RC1 |
| Powered by | Apache Yetus 0.11.1 https://yetus.apache.org |
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Issue Time Tracking
-------------------
Worklog Id: (was: 639818)
Time Spent: 50m (was: 40m)
> ABFS: Send error back to client for Read Ahead request failure
> --------------------------------------------------------------
>
> Key: HADOOP-16852
> URL: https://issues.apache.org/jira/browse/HADOOP-16852
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.3.1
> Reporter: Sneha Vijayarajan
> Assignee: Sneha Vijayarajan
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.1
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Issue seen by a customer:
> The failed requests we were seeing in the AbfsClient logging actually never
> made it out over the wire. We have found that there’s an issue with ADLS
> passthrough and the 8 read ahead threads that ADLSv2 spawns in
> ReadBufferManager.java. We depend on thread local storage in order to get the
> right JWT token and those threads do not have the right information in their
> thread local storage. Thus, when they pick up a task from the read ahead
> queue they fail by throwing an AzureCredentialNotFoundException exception in
> AbfsRestOperation.executeHttpOperation() where it calls
> client.getAccessToken(). This exception is silently swallowed by the read
> ahead threads in ReadBufferWorker.run(). As a result, every read ahead
> attempt results in a failed executeHttpOperation(), but still calls
> AbfsClientThrottlingIntercept.updateMetrics() and contributes to throttling
> (despite not making it out over the wire). After the read aheads fail, the
> main task thread performs the read with the right thread local storage
> information and succeeds, but first sleeps for up to 10 seconds due to the
> throttling.
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