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kevin su commented on HADOOP-16504: ----------------------------------- [~leosun08] it's ok, I haven't started yet. > Increase ipc.server.listen.queue.size default from 128 to 256 > ------------------------------------------------------------- > > Key: HADOOP-16504 > URL: https://issues.apache.org/jira/browse/HADOOP-16504 > Project: Hadoop Common > Issue Type: Improvement > Reporter: Lisheng Sun > Assignee: Lisheng Sun > Priority: Major > Attachments: HADOOP-16504.000.patch > > > Because ipc.server.listen.queue.size default value is too small, TCP's > ListenDrop indicator along with the rpc request large. > The upper limit of the system's semi-join queue is 65636 and maximum number > of fully connected queues is 1024. > {code:java} > [work@c3-hadoop-srv-talos27 ~]$ cat /proc/sys/net/ipv4/tcp_max_syn_backlog > 65536 > [work@c3-hadoop-srv-talos27 ~]$ cat /proc/sys/net/core/somaxconn > 1024 > {code} > I think this default value should be adjusted. -- This message was sent by Atlassian JIRA (v7.6.14#76016) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org