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From "" <>
Subject 鍥炲: How Can I close dead session in Impala 2.3.0
Date Wed, 29 Nov 2017 09:52:07 GMT
Hi 董博:
        you can configure the TCP Keepalive parameters for Linux.
            net.ipv4.tcp_keepalive_time = 1200
            net.ipv4.tcp_keepalive_intvl = 30
            net.ipv4.tcp_keepalive_probes = 3
        I hope the suggestion helpful.

Yunbo Fan
发件人: Dong Bo 董博
发送时间: 2017-11-29 17:08
主题: How Can I close dead session in Impala 2.3.0
Hi guys,
         Due to some reason , some session on impala hangs but not closed , service_thread
is full and no more new session can be setup , but the client of dead session is no longer
exist, just Increase service_thread is not a solution cause it just extends a little bit the
service time .
         Is there any variable or solution can be set to manage this kind of dead sessions
         Tried option –idle_session_timeout , but this option only set the session expire
to TRUE but can’t close it .
         Impala Version : 2.3.0
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