[
https://issues.apache.org/jira/browse/HBASE-18002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000413#comment-16000413
]
ramkrishna.s.vasudevan commented on HBASE-18002:
------------------------------------------------
Good point.
But with latest SSDs this will still happen but may be at lesser error rate and
we may have no way to improve this.
bq.(Clear file data from code I mean)
YEs then this seems the best soln. Like if there is a valid path configured and
if the file len is not equal to 0 then better delete it from code and recreate
it. Any failure here handlie it as failure in bucket cache init only.
> 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
> Fix For: 2.0.0
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
