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https://issues.apache.org/jira/browse/HBASE-27355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ruanhui updated HBASE-27355:
----------------------------
Release Note: Dispatch the client's meta read request and the master's meta
read request to different processing queues. Introduce a new configuration
hbase.ipc.server.metacallqueue.handler.factor to determine the size of the meta
request processing queue.
> Separate meta read requests from master and client
> ---------------------------------------------------
>
> Key: HBASE-27355
> URL: https://issues.apache.org/jira/browse/HBASE-27355
> Project: HBase
> Issue Type: Improvement
> Components: IPC/RPC
> Affects Versions: 3.0.0-alpha-3
> Reporter: ruanhui
> Assignee: ruanhui
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.0.0-beta-2
>
>
> If we have a large number of store files in a single region or the response
> from hdfs is slow, the region transition can be slow, the client may put a
> lot of pressure on the meta server when retrying. This may block the master
> system read requests. Maybe we can set a special priority for the master
> request to isolate read requests from master and client.
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