Phil Yang created HBASE-16285:
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Summary: Drop RPC requests if it must be considered as timeout at
client
Key: HBASE-16285
URL: https://issues.apache.org/jira/browse/HBASE-16285
Project: HBase
Issue Type: Improvement
Reporter: Phil Yang
Assignee: Phil Yang
After HBASE-15593, we have a timeout param in header of RPC requests. We can
use it in more scenes.
A straightforward scene is to drop requests if it has waited so long in RPC
queue and has been dropped by client. Even if we handle this request and send
the response back, it will not be used any more. And client may have been sent
a retry. In an extreme case, if the server is slow, all requests may be timeout
or queue-full-exception because we should handle previous requests which have
been dropped by client and many resources at server are wasted.
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