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https://issues.apache.org/jira/browse/HBASE-22280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17463389#comment-17463389
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Richard Marscher commented on HBASE-22280:
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I also noticed that this means the meta call queue type now becomes the same as
your normal rpc call queue type. This is since instead of passing in a FIFO
queue like the fast path executor path does, the `MetaRWQueueRpcExecutor` is a
child of `RpcExecutor`, which runs through the logic to load the call queue
type based on the `base.ipc.server.callqueue.type` config.
> Separate read/write handler for priority request(especially for meta).
> ----------------------------------------------------------------------
>
> Key: HBASE-22280
> URL: https://issues.apache.org/jira/browse/HBASE-22280
> Project: HBase
> Issue Type: New Feature
> Components: Scheduler
> Reporter: Lijin Bin
> Assignee: Lijin Bin
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.3.0, 2.2.3
>
> Attachments: HBASE-22280.patch
>
>
> Client may give too many read pressure on meta, so blocking master write meta
> for region open.
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