I think I caught a pvfs2-induced crash in progress on 2.8.5. I don't have a crash file, and it looks like its still in the process of bringing down my head node. Symptoms were:
Someone was doing an scp from (or to, not sure which, but probably from) the pvfs2 volume. At some point, CPU usage spikes on the head node. Top shows both the scp and the pvfs2-client-core using 100% of a core. The load avg just keeps going up and up. About 29, I lost responsiveness from the server. CPU load shows 62.5% iowait, 25% system, 12.5% idle, all others 0. The only processes of note running is the one SCP and the pvfs2 process. My machine has now gone unresponsive; I'll probably need to go hit the front panel reset button. When it comes back up, I doubt there will be any written logs of what happened. Hence, why I can never catch the logs of the crash; it *thinks* its working until the system goes non-responsive and resets. --Jim _______________________________________________ Pvfs2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
