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https://issues.apache.org/jira/browse/SPARK-2881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14088018#comment-14088018
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Mridul Muralidharan edited comment on SPARK-2881 at 8/6/14 6:45 PM:
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To add, this will affect spark whenever tmp directory is not overridden via
java.io.tmpdir to something ephemeral.
So local, yarn client, standalone should be affected by default (unless I
missed something in the scripts).
I am not very of how mesos runs jobs, so cant comment about that, anyone care
to add ?
A workaround I can think of is to always set 'org.xerial.snappy.tempdir' to a
randomly generated directory under "java.io.tmpdir" as part of spark startup
(only) once : which will cause snappy to use that directory and avoid this
issue.
Since snappy is the default codec now, I am +1 on marking this as a blocker for
release
was (Author: mridulm80):
To add, this will affect spark whenever tmp directory is not overridden via
java.io.tmpdir to something ephemeral.
So local, yarn client, standalone should be affected by default (unless I
missed something in the scripts).
I am not very of how mesos runs jobs, so cant comment about that, anyone care
to add ?
A workaround I can think of is to always set 'org.xerial.snappy.tempdir' to a
randomly generated directory under "java.io.tmpdir" as part of spark startup
(only) once : which will cause snappy to use that directory and avoid this
issue.
Since snappy is the default codec now, I am marking this as a blocker for
release
> Snappy is now default codec - could lead to conflicts since uses /tmp
> ---------------------------------------------------------------------
>
> Key: SPARK-2881
> URL: https://issues.apache.org/jira/browse/SPARK-2881
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.1.0
> Reporter: Thomas Graves
> Priority: Blocker
>
> I was using spark master branch and I ran into an issue with Snappy since its
> now the default codec for shuffle.
> The issue was that someone else had run with snappy and it created
> /tmp/snappy-*.so but it had restrictive permissions so I was not able to use
> it or remove it. This caused my spark job to not start.
> I was running in yarn client mode at the time. Yarn cluster mode shouldn't
> have this issue since we change the java.io.tmpdir.
> I assume this would also affect standalone mode.
> I'm not sure if this is a true blocker but wanted to file it as one at first
> and let us decide.
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