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https://issues.apache.org/jira/browse/YARN-1987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985894#comment-13985894
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Ming Ma commented on YARN-1987:
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Jason,
1. LeveldbIterator.close rethrows IOException instead of DBException. Just
wonder which is better, given JniDBFactory.factory.open throws DBException.
2. It seems "store open via JniDBFactory.factory.open" can also be useful to
put into a wrapper class, to take care of "catch the exception if the store
doesn't exist and create a new one". Perhaps that will be another jira.
> Wrapper for leveldb DBIterator to aid in handling database exceptions
> ---------------------------------------------------------------------
>
> Key: YARN-1987
> URL: https://issues.apache.org/jira/browse/YARN-1987
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.4.0
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Attachments: YARN-1987.patch
>
>
> Per discussions in YARN-1984 and MAPREDUCE-5652, it would be nice to have a
> utility wrapper around leveldb's DBIterator to translate the raw
> RuntimeExceptions it can throw into DBExceptions to make it easier to handle
> database errors while iterating.
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