Enis Soztutar created HBASE-15765:
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Summary: RPC handlers should steal from other queues in the same
or higher priority
Key: HBASE-15765
URL: https://issues.apache.org/jira/browse/HBASE-15765
Project: HBase
Issue Type: Improvement
Reporter: Enis Soztutar
With the simple rpc scheduler model by default, a request first falls in one
type of queue (priority, general, replication) and it will get "sharded" in a
queue within that priority level (for example there are 2 queues for the high
priority level). The handlers can only take from their specific queues, and
nothing else.
Even if a request is waiting in a high priority queue, the handlers within the
same priority level or a lower priority level will not see these requests
(which is the root cause for HBASE-15613). We should be able to steal from
other queues, without losing the prioritization and sharding benefits.
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