Just a thought...anyone do any load testing with GFS (and non-GFS clusters) using different I/O schedulers (CFQ v Deadline v NOOP v as?) --Jeff Service Engineer OpSource Inc. > -----Original Message----- > Subject: Re: reducing heartbeat interval > > garylua@xxxxxxxxxxxxxx wrote: > > Hi, hwo do i go about changing the heartbeat intervals for cluster > > suite for RHEL4? Is the minimum 5 seconds, or can i go even lower, > > like 1 sec? thanks > > cluster.conf parameters (eg): > > <cman hello_timer="1" deadnode_timer="10"/> > > The number are integer seconds so 1 is the smallest value you > can have. Before you put that into production though, check > it under load because high I/O or network loads can cause > spurious node "failures". > > see /proc/cluster/config/cman for all the changeable values. -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
