OCFS2 fencing
Few days back, one of our server rebooted by itself because of ocfs2 fencing.
When i checked the log file, the message was as below:
Feb 27 20:49:17 ImageInt2 kernel: Index 0: took 0 ms to do bio alloc write
Feb 27 20:49:17 ImageInt2 kernel: Index 1: took 0 ms to do bio add page write
Feb 27 20:49:17 ImageInt2 kernel: Index 2: took 0 ms to do submit_bio for write
Feb 27 20:49:17 ImageInt2 kernel: Index 3: took 0 ms to do checking slots
Feb 27 20:49:17 ImageInt2 kernel: Index 4: took 8074 ms to do waiting for write completion
Feb 27 20:49:17 ImageInt2 kernel: Index 5: took 0 ms to do allocating bios for read
Feb 27 20:49:17 ImageInt2 kernel: Index 6: took 0 ms to do bio alloc read