Steve Loughran created HADOOP-17386:
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Summary: fs.s3a.buffer.dir to be under Yarn container path on yarn
applications
Key: HADOOP-17386
URL: https://issues.apache.org/jira/browse/HADOOP-17386
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3
Affects Versions: 3.3.0
Reporter: Steve Loughran
# fs.s3a.buffer.dir defaults to hadoop.tmp.dir which is /tmp or similar
# we use this for storing file blocks during upload
# staging committers use it for all files in a task, which can be a lot more
# a lot of systems don't clean up /tmp until reboot -and if they stay up for a
long time then they accrue files written through s3a staging committer from
spark containers which fail
Fix: use ${env.LOCAL_DIRS:-${hadoop.tmp.dir}}/s3a as the option so that if
env.LOCAL_DIRS is set is used over hadoop.tmp.dir. YARN-deployed apps will use
that for the buffer dir. When the app container is destroyed, so is the
directory.
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