Arpit Agarwal created HADOOP-12903:
--------------------------------------
Summary: Add IPC Server support for suppressing exceptions by
type, suppress 'server too busy' messages
Key: HADOOP-12903
URL: https://issues.apache.org/jira/browse/HADOOP-12903
Project: Hadoop Common
Issue Type: Bug
Components: ipc
Affects Versions: 2.7.2
Reporter: Arpit Agarwal
Assignee: Arpit Agarwal
HADOOP-10597 added support for RPC congestion control by sending retriable
'server too busy' exceptions to clients.
However every backoff results in a log message. We've seen these log messages
slow down the NameNode.
{code}
2016-03-07 15:02:23,272 INFO org.apache.hadoop.ipc.Server: Socket Reader #1 for
port 8020: readAndProcess from client 127.0.0.1 threw exception
[org.apache.hadoop.ipc.RetriableException: Server is too busy.]
{code}
We already have a metric that tracks the number of backoff events. This log
message adds nothing useful.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
