"George Pavlov" <gpavlov@xxxxxxxxxxxxxx> writes: > I am on 8.1.3 on Linux. I have a > log entry like this: > 2006-11-08 12:38:34 PST [3739]: [3-1] LOG: could not truncate directory > "pg_multixact/members": apparent wraparound During crash recovery? If so, probably nothing to worry about, per this 8.1.5 bug fix: 2006-07-19 20:46 tgl * src/backend/access/transam/multixact.c (REL8_1_STABLE): Don't try to truncate multixact SLRU files in checkpoints done during xlog recovery. In the first place, it doesn't work because slru's latest_page_number isn't set up yet (this is why we've been hearing reports of strange "apparent wraparound" log messages during crash recovery, but only from people who'd managed to advance their next-mxact counters some considerable distance from 0). In the second place, it seems a bit unwise to be throwing away data during crash recovery anwyway. This latter consideration convinces me to just disable truncation during recovery, rather than computing latest_page_number and pushing ahead. regards, tom lane
