GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/3981
[FLINK-6646] [yarn] Let YarnJobManager delete Yarn application files
Before the YarnClusterClient decided when to delete the Yarn application
files.
This is problematic because the client does not know whether a Yarn
application
is being restarted or terminated. Due to this the files where always
deleted. This
prevents Yarn from restarting a failed ApplicationMaster, effectively
thwarting
Flink's HA capabilities.
The PR changes the behaviour such that the YarnJobManager deletes the Yarn
files
if it receives a StopCluster message. That way, we can be sure that the
yarn files
are deleted only iff the cluster is intended to be shut down.
cc @rmetzger
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink fixYarnSession
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3981.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3981
----
commit 72ce39a1752cc19669f003b70cc2708852a06ac5
Author: Till Rohrmann <trohrm...@apache.org>
Date: 2017-05-24T15:59:51Z
[FLINK-6646] [yarn] Let YarnJobManager delete Yarn application files
Before the YarnClusterClient decided when to delete the Yarn application
files.
This is problematic because the client does not know whether a Yarn
application
is being restarted or terminated. Due to this the files where always
deleted. This
prevents Yarn from restarting a failed ApplicationMaster, effectively
thwarting
Flink's HA capabilities.
The PR changes the behaviour such that the YarnJobManager deletes the Yarn
files
if it receives a StopCluster message. That way, we can be sure that the
yarn files
are deleted only iff the cluster is intended to be shut down.
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