Hi, We're using LVS-DR to loadbalance HTTP/HTTPS requests to three webservers. Both active and backup LVS servers have fully updated CentOS 5.1. ARP problem is solved with arptables_jf. All this time i have been restarting realservers during the night under very little load and s at all. But lately one of the realservers crashed during the day and when it came back it was automatically added back to the LVS and all but no new requests were sent to it. Ipvsadm showed it had a lot of ActiveConn's and zero InActConn's. These numbers remained the same for 10 or more minutes and then ActiveConn started decreasing slowly. Once the ActiveConn was lower than the other realservers had, new requests started to reach the server and InActConn increased from 0. I could reproduce this later when i took a realserver down myself and noticed that the more connections there were during the crash and after, the bigger static count of ActiveConn's appeared for the crashed server once it came back. Neither LVS restart or "ipvsadm --zero" helped. It seems to me that when one of the realservers disappears, LVS doesn't close the open connections and they just hang there until timeout comes. Definately doesn't seem like an ARP prolem. Oh.. and i should mention that i'm using firewall marks and lc scheduler.
Any help would be appreciated! Thanks, Janar Kartau _______________________________________________ LinuxVirtualServer.org mailing list - [email protected] Send requests to [EMAIL PROTECTED] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
