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https://issues.apache.org/jira/browse/HIVE-18056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16254606#comment-16254606
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Sergey Shelukhin edited comment on HIVE-18056 at 11/16/17 1:42 AM:
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Hmm... I don't understand the new logic. waitForInitAndBlock seems to be a dup
of waitForInit.
The difference is that waitForInit doesn't sleep forever to avoid common bugs
we've seen with the code that does sleep forever when some changes are made
later and the state is modified without waking it up. It still does wait
forever (via the while loop), sleeping 100ms on every iteration and re-checking
the state. Notify is a nice addition.
Also, Wrapper.get already calls waitForInit, so there shouldn't be need to also
call waitForInitAndBlock (or if there's a bug in waitForInit that makes it not
wait forever, it should be fixed).
was (Author: sershe):
Hmm... I don't understand the new logic. waitForInitAndBlock seems to be a dup
of waitForInit.
The difference is that waitForInit doesn't sleep forever to avoid common bugs
we've seen with the code that does sleep forever when some changes are made
later and the state is modified without waking it up. It still does wait
forever (via the while loop), sleeping 100ms on every iteration and re-checking
the state.
Wrapper.get already calls waitForInit, so there shouldn't be need to also call
waitForInitAndBlock (or if there's a bug in waitForInit that makes it not wait
forever, it should be fixed).
> CachedStore: Have a whitelist/blacklist config to allow selective caching of
> tables/partitions and allow read while prewarming
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-18056
> URL: https://issues.apache.org/jira/browse/HIVE-18056
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 3.0.0
> Reporter: Vaibhav Gumashta
> Assignee: Vaibhav Gumashta
> Attachments: HIVE-18056.1.patch
>
>
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