GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/3972
[FLINK-6662] [errMsg] Improve error message if recovery from
RetrievableStateHandles fails
When recovering state from a ZooKeeperStateHandleStore it can happen that
the deserialization
fails, because one tries to recover state from an old Flink version which
is not compatible.
In this case we should output a better error message such that the user can
easily spot the
problem.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink improveErrorMessages
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3972.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 #3972
commit 31d099c4768f1ee8dfbecfd8eddc6f05842425e6
Author: Till Rohrmann
Date: 2017-05-23T13:42:38Z
[FLINK-6662] [errMsg] Improve error message if recovery from
RetrievableStateHandles fails
When recovering state from a ZooKeeperStateHandleStore it can happen that
the deserialization
fails, because one tries to recover state from an old Flink version which
is not compatible.
In this case we should output a better error message such that the user can
easily spot the
problem.
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