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https://issues.apache.org/jira/browse/HBASE-18002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16073969#comment-16073969
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ramkrishna.s.vasudevan commented on HBASE-18002:
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As already said in the earlier comment here, only if we have persistencPath
then there is a way to retrieve from it. If not no.
Ya one thing to be done is that before deleting need to check for that
'persistencePath != null'. I thought of adding it but while preparing the patch
just forgot. But if a reigon movement happens am not sure how that persistence
is still valid. Need to see the code.
> Investigate why bucket cache filling up in file mode in an exisitng file is
> slower
> -----------------------------------------------------------------------------------
>
> Key: HBASE-18002
> URL: https://issues.apache.org/jira/browse/HBASE-18002
> Project: HBase
> Issue Type: Sub-task
> Components: BucketCache
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 2.0.0
>
> Attachments: HBASE-18002.patch
>
>
> This issue was observed when we recently did some tests with SSD based bucket
> cache. Similar thing was also reported by @stack and [~danielpol] while doing
> some of these bucket cache related testing.
> When we try to preload a bucket cache (in file mode) with a new file the
> bucket cache fills up quite faster and there not much 'failedBlockAdditions'.
> But when the same bucket cache is filled up with a preexisitng file ( that
> had already some entries filled up) this time it has more
> 'failedBlockAdditions' and the cache does not fill up faster. Investigate why
> this happens.
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