Ming Ma created HADOOP-10599: -------------------------------- Summary: Support prioritization of DN RPCs over client RPCs Key: HADOOP-10599 URL: https://issues.apache.org/jira/browse/HADOOP-10599 Project: Hadoop Common Issue Type: Sub-task Reporter: Ming Ma
We might need to prioritize DN RPC over client RPC so that no matter what application do to NN RPC and FSNamesystem's global lock, DN's requests will be processed timely. After a cluster is configured to have service RPC server separated from client RPC server, it is mitigated to some degree with fair FSNamesystem's global lock. Also if the NN global lock can be made more fine grained; such need becomes less important. Still, it will be good to evaluate if this is a good option. -- This message was sent by Atlassian JIRA (v6.2#6252)