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https://issues.apache.org/jira/browse/HBASE-20965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571415#comment-16571415
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Reid Chan commented on HBASE-20965:
-----------------------------------
bq. REGION_SERVER_REPORT_HANDLER_COUNT =
"hbase.regionserver.report.handler.count";
Move this parameter into {{MasterFifoRpcScheduler}} instead of {{HConstants}},
besides, please use 'hbase.master.**\**.**\**.**\**.', apparently it is master
parameter, current naming is misleading, 'hbase.master.server.report.handler'
for your reference.
Please well java-doc to introduce what REPORT_HANDLER_COUNT for and what will
happen if unset or set, which parameter it needs to cooperate with, when user
chooses to use {{MasterFifoRpcScheduler}}
Mark {{MasterFifoRpcScheduler}} Evolving.
{quote}Special rpc scheduler only used for master.{quote}
Java docs about {{MasterFifoRpcScheduler}} is too simple to let people know why
it is special...
{code}private static final Logger LOG =
LoggerFactory.getLogger(MasterFifoRpcScheduler.class);{code}
Remove this unused LOG and related package, or LOG where necessary by your good
judge.
> Separate region server report requests to new handlers
> ------------------------------------------------------
>
> Key: HBASE-20965
> URL: https://issues.apache.org/jira/browse/HBASE-20965
> Project: HBase
> Issue Type: Improvement
> Components: Performance
> Reporter: Yi Mei
> Assignee: Yi Mei
> Priority: Major
> Fix For: 3.0.0, 2.2.0
>
> Attachments: HBASE-20965.master.001.patch,
> HBASE-20965.master.002.patch, HBASE-20965.master.003.patch,
> HBASE-20965.master.004.patch, HBASE-20965.master.005.patch,
> HBASE-20965.master.006.patch, HBASE-20965.master.007.patch,
> HBASE-20965.master.008.patch
>
>
> In master rpc scheduler, all rpc requests are executed in a thread pool. This
> task separates rs report requests to new handlers.
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