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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15654) Optimize client's MetaCache handling
Date Fri, 15 Apr 2016 18:58:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15243411#comment-15243411

Vladimir Rodionov commented on HBASE-15654:

Do you think we should move it as subtask here?

Yeah. This is where it belongs to :)

> Optimize client's MetaCache handling
> ------------------------------------
>                 Key: HBASE-15654
>                 URL: https://issues.apache.org/jira/browse/HBASE-15654
>             Project: HBase
>          Issue Type: Umbrella
>          Components: Client
>    Affects Versions: 1.3.0
>            Reporter: Mikhail Antonov
>            Assignee: Mikhail Antonov
>             Fix For: 1.3.0
> This is an umbrella jira to track all individual issues, bugfixes and small optimizations
around MetaCache (region locations cache) in the client. Motivation is that under the load
one could see a spikes in the number of requests going to meta - reaching tens of thousands
requests per second.
> That covers issues when we clear entries from location cache unnecessary, as well as
when we do more lookups than necessary when entries are legitimately evicted.

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