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HADOOP-17386. Change default fs.s3a.buffer.dir to be under Yarn container path on yarn applications #3908

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Merged
aajisaka merged 1 commit into from
Feb 22, 2022
Merged

HADOOP-17386. Change default fs.s3a.buffer.dir to be under Yarn container path on yarn applications #3908

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7 changes: 5 additions & 2 deletions hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -1617,9 +1617,12 @@

<property>
<name>fs.s3a.buffer.dir</name>
<value>${hadoop.tmp.dir}/s3a</value>
<value>${env.LOCAL_DIRS:-${hadoop.tmp.dir}}/s3a</value>
<description>Comma separated list of directories that will be used to buffer file
uploads to.</description>
uploads to.
Yarn container path will be used as default value on yarn applications,
otherwise fall back to hadoop.tmp.dir
</description>
</property>

<property>
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2 changes: 1 addition & 1 deletion hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/committers.md
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Expand Up @@ -546,7 +546,7 @@ Conflict management is left to the execution engine itself.
| Option | Meaning | Default |
|--------|---------|---------|
| `mapreduce.fileoutputcommitter.marksuccessfuljobs` | Write a `_SUCCESS` file on the successful completion of the job. | `true` |
| `fs.s3a.buffer.dir` | Local filesystem directory for data being written and/or staged. | `${hadoop.tmp.dir}/s3a` |
| `fs.s3a.buffer.dir` | Local filesystem directory for data being written and/or staged. | `${env.LOCAL_DIRS:-${hadoop.tmp.dir}}/s3a` |
| `fs.s3a.committer.magic.enabled` | Enable "magic committer" support in the filesystem. | `true` |
| `fs.s3a.committer.abort.pending.uploads` | list and abort all pending uploads under the destination path when the job is committed or aborted. | `true` |
| `fs.s3a.committer.threads` | Number of threads in committers for parallel operations on files. | 8 |
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14 changes: 10 additions & 4 deletions hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
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Expand Up @@ -967,9 +967,12 @@ options are covered in [Testing](./testing.md).

<property>
<name>fs.s3a.buffer.dir</name>
<value>${hadoop.tmp.dir}/s3a</value>
<value>${env.LOCAL_DIRS:-${hadoop.tmp.dir}}/s3a</value>
<description>Comma separated list of directories that will be used to buffer file
uploads to.</description>
uploads to.
Yarn container path will be used as default value on yarn applications,
otherwise fall back to hadoop.tmp.dir
</description>
</property>

<property>
Expand Down Expand Up @@ -1746,9 +1749,12 @@ consumed, and so eliminates heap size as the limiting factor in queued uploads

<property>
<name>fs.s3a.buffer.dir</name>
<value>${hadoop.tmp.dir}/s3a</value>
<value>${env.LOCAL_DIRS:-${hadoop.tmp.dir}}/s3a</value>
<description>Comma separated list of directories that will be used to buffer file
uploads to.</description>
uploads to.
Yarn container path will be used as default value on yarn applications,
otherwise fall back to hadoop.tmp.dir
</description>
</property>
```

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