Re: [SSI-devel] SSI-1.1.1-FC2 HA-LVS dropping realservers from table after long inactivity
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Re: [SSI-devel] SSI-1.1.1-FC2 HA-LVS dropping realservers from table after long inactivity
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From: Roger T. <pe...@ho...> - 2004-12-02 01:24:43
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I think HA-LVS has a larger problem. After failover twice from node1 to node2 and back to node1, this is what I see on node1: IP Virtual Server version 1.0.10 (size=65536) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 10.0.0.211:8443 wlc TCP 10.0.0.211:3456 wlc TCP 10.0.0.211:143 wlc TCP 10.0.0.211:443 wlc TCP 10.0.0.211:80 wlc TCP 10.0.0.211:22 wlc Services on these ports are httpd, imap(143), and ssh. # chkconfig --ssi --list httpd httpd all N # chkconfig --list httpd httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off > Roger Tsang wrote: >> SSI-1.1.1-FC2 HA-LVS dropping realservers from load-balancer table after >> long inactivity >> >> Hi, I noticed that the IPVS table is dropping realserver entries after >> long periods of inactivity (no incoming traffic). So for instance, imap >> server run as an xinetd service on both director nodes as realservers. >> After 9-12 hours, ipvsadm would show loadbalancing imap port to only one >> of the nodes. I verified that both nodes are still running xinetd. My >> xinetd runs with -stayalive -pidfile /var/run/xinetd.pid >> >> I'm running directors on 2 nodes, one is IPVS master. Both nodes are >> also realservers. >> >> TCP cluster:imap wlc >> -> node2:imap Local 1471 0 0 >> -> node1:imap Route 3997 0 0 >> > > > Can you see if the service is available on the real server node (netstat > -a should help you ) when you find it dropped on the director node. The > way ha-lvs works now is when the real server close the binded socket the > service will be automatically unregistered from the director node. May > be imap server has some configuration that makes it close the socket > when there is no activity. > > -aneesh > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://productguide.itmanagersjournal.com/ > _______________________________________________ > ssic-linux-devel mailing list > ssi...@li... > https://lists.sourceforge.net/lists/listinfo/ssic-linux-devel > |