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https://issues.apache.org/jira/browse/MAPREDUCE-7486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18068893#comment-18068893
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ASF GitHub Bot commented on MAPREDUCE-7486:
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deepujain opened a new pull request, #8388:
URL: https://github.com/apache/hadoop/pull/8388
# MAPREDUCE-7486. Handling Cluster Storage Capacity Exceeded Exception with
Enhanced Logging
## Summary
This patch improves the logging path in `YarnChild.reportError()` when
`ClusterStorageCapacityExceededException` is raised and fast fail is disabled.
The task now emits a warning that explains why the job is not failing
immediately and points users to the configuration that enables fast fail.
## Change
-
`hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java`:
add a warning log message for the non-fast-fail capacity-exceeded path.
-
`hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapred/TestYarnChild.java`:
extend the unit coverage to assert the warning path and preserve the existing
fatal-error behavior checks.
## Tests
- `JAVA_HOME=/opt/homebrew/opt/openjdk /opt/homebrew/bin/mvn
-Dmaven.repo.local=/tmp/codex-m2 test -pl
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app
-am -Dtest=TestYarnChild -DskipTests=false`
## JIRA
Fixes MAPREDUCE-7486
> Handling Cluster Storage Capacity Exceeded Exception with Enhanced Logging
> --------------------------------------------------------------------------
>
> Key: MAPREDUCE-7486
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7486
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mapreduce-client
> Affects Versions: 3.3.6
> Environment: Version: {{`3.3.6`}}
> Location:
> {{{}`hadoop/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java`{}}}，
> in {{`reportError`}} method, starting from Line 241-250.
> Reporter: LoggingResearch
> Priority: Major
> Attachments: TestYarnChild.java, original-vs-log-enhanced.md
>
>
> The existing {{reportError}} method in {{YarnChild.java}} is responsible for
> handling exceptions during job execution. However, when the exception is due
> to the cluster storage capacity being exceeded, the method lacks sufficient
> logging, especially in cases where the job is not configured to fast fail.
> This can make it difficult for users to understand why a job did not fail
> immediately when the storage capacity was exceeded. The enhancement adds
> detailed logging to inform users about the configuration that prevents fast
> failure.
>
> *Expected Behavior:*
> When a {{ClusterStorageCapacityExceededException}} is encountered, the system
> should log whether the job is configured to fail fast. If fast fail is
> disabled, the log should advise users on how to enable it.
>
> *How-to-Fix:*
> We propose to *expose such a relationship by logging.*
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