Sergey Shelukhin created HBASE-22333:
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Summary: move certain internal RPCs to high priority level
Key: HBASE-22333
URL: https://issues.apache.org/jira/browse/HBASE-22333
Project: HBase
Issue Type: Bug
Reporter: Sergey Shelukhin
User calls can inadvertently DDoS master (and potentially RS), causing issues
(e.g. CallQueueTooBig) for important system calls like
reportRegionStateTransition.
These calls should be moved to high pri level... I wonder if all the low-volume
internal calls (i.e. except heartbeats and maybe WAL splitting stuff) should
have higher pri (e.g. 20 QoS in HConstants).
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