while doing a vacuum, i got a 'broken pipe' error. is this serious? ... DEBUG: Pages 1: Changed 0, reaped 1, Empty 0, New 0; Tup 2: Vac 0, Keep/VTL 0/0, Crash 0, UnUsed 2, MinLen 1206, MaxLen 1499; Re-using: Free/Avail. Space 5444/0; EndEmpty/Avail. Pages 0/0. CPU 0.00s/0.00u sec. DEBUG: Index pg_toast_16600_idx: Pages 2; Tuples 2: Deleted 0. CPU 0.00s/0.00u sec. DEBUG: MoveOfflineLogs: remove 0000000300000072 DEBUG: MoveOfflineLogs: remove 0000000300000073 DEBUG: MoveOfflineLogs: remove 0000000300000074 DEBUG: MoveOfflineLogs: remove 0000000300000075 DEBUG: MoveOfflineLogs: remove 0000000300000076 DEBUG: MoveOfflineLogs: remove 0000000300000077 DEBUG: MoveOfflineLogs: remove 0000000300000078 DEBUG: MoveOfflineLogs: remove 0000000300000070 DEBUG: MoveOfflineLogs: remove 0000000300000071 pq_flush: send() failed: Broken pipe pq_recvbuf: unexpected EOF on client connection