We just had a very bizarre outage last night with a symptom we have never seen before... ALL of our file servers on a particular subnet quit responding, even to themselves, and all at the same time (about 12:34pm central). volserver and bos were both responding fine, and giving back useful info, but the file servers were not answering. xstat_fs_test/afsmonitor would get no answer from those file servers as well.
We wound up doing bos restarts on everything, which caused them to start working again. File servers are mostly redhat62 on 2.2.19 running openafs snapshot from back in april. We've never seen anything like this. As near as we can tell we had no other odd things happen at that same time, just out of the blue, all of the file servers up and stopped talking. Unfortunately, I don't really have any useful debug info, just figured I'd pass this along in case anyone else might have seen anything like it. I'm wondering if it may have been a DoS attack of some sort. The interesting thing is - there were two servers in our test cell on that same subnet that continued to respond, but no one ever accesses them. -- Nathan ------------------------------------------------------------ Nathan Neulinger EMail: [EMAIL PROTECTED] University of Missouri - Rolla Phone: (573) 341-4841 Computing Services Fax: (573) 341-4216 _______________________________________________ OpenAFS-devel mailing list [EMAIL PROTECTED] https://lists.openafs.org/mailman/listinfo/openafs-devel
