Hi, I've Found the root cause. I have had to many CLOSE_WAIT connections because I've set proxy.config.http.transaction_active_timeout_in to 0. By changing this variable the issue has been solved. I thought, as such connections are not active, they should be fully closed even without transaction_active_timeout_in...
On 25.12.2012 13:30, Vladyslav Bachynskyi wrote: > Hi All, > > I'm seeing strange behavior. After some time of work I'm getting to many > CLOSE_WAIT connections from clients, and the number is increasing. > > # netstat -tonp | grep CLOSE > tcp 1 0 111.22.33.44:80 > 10.214.35.4:52429 CLOSE_WAIT 14531/traffic_serve off (0.00/0/0) > tcp 1 0 111.22.33.44:80 > 11.202.242.217:51424 CLOSE_WAIT 14531/traffic_serve off (0.00/0/0) > tcp 1 0 111.22.33.44:80 > 12.153.247.234:49950 CLOSE_WAIT 14531/traffic_serve off (0.00/0/0) > tcp 1 0 111.22.33.44:80 > 13.179.104.225:58900 CLOSE_WAIT 14531/traffic_serve off (0.00/0/0) > > To the end of the day, the amount of CLOSE_WAIT connections will be more > then 100. > Due to this issue, I'm getting incorrect number of > proxy.node.current_client_connections (as example, I can see hundred of > proxy.node.current_client_connections, while there is almost no traffic > on the server). > > My timeouts: > CONFIG proxy.config.http.keep_alive_no_activity_timeout_in INT 30 > CONFIG proxy.config.http.keep_alive_no_activity_timeout_out INT 120 > CONFIG proxy.config.http.transaction_no_activity_timeout_in INT 30 > CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 30 > CONFIG proxy.config.http.transaction_active_timeout_in INT 0 > CONFIG proxy.config.http.transaction_active_timeout_out INT 0 > CONFIG proxy.config.http.accept_no_activity_timeout INT 120 > CONFIG proxy.config.http.background_fill_active_timeout INT 60 > CONFIG proxy.config.http.background_fill_completed_threshold FLOAT 0.500000 > > OS: CenOS 6.3 2.6.32-279.14.1.el6.x86_64 > traffic_server - 3.3.1-dev - (build # 11318) > > Changing of net.ipv4.tcp_tw_reuse had no any effect. > Any suggestions will be very appreciated. > > Thanks, > >
