Hi, On Fri, 2010-02-26 at 16:52 +0100, Emilio Arjona wrote: > Hi, > > we are experiencing some problems commented in an old thread: > > http://www.mail-archive.com/linux-cluster@xxxxxxxxxx/msg07091.html > > We have 3 clustered servers under Red Hat 5.4 accessing a GFS2 resource. > > fstab options: > /dev/vg_cluster/lv_cluster /opt/datacluster gfs2 > defaults,noatime,nodiratime,noquota 0 0 > > GFS options: > plock_rate_limit="0" > plock_ownership=1 > > httpd processes run into D status sometimes and the only solution is > hard reset the affected server. > > Can anyone give me some hints to diagnose the problem? > > Thanks :) > Can you give me a rough idea of what the actual workload is and how it is distributed amoung the director(y/ies) ? This is often down to contention on glocks (one per inode) and maybe because there is a process of processes writing a file or directory which is in use (either read-only or writable) by other processes. If you are using php, then you might have to strace it to find out what it is really doing, Steve. > -- > > Emilio Arjona. > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
