Re: Database deadlock problem
1998-10-15 03:13:34
All,
Futher to the note I sent below (which I have had no response to
todate) the deadlock situation seems to be related to DB activity. On
investigation the Bufpoolsize was using default of 2048 due to a typo
in the dsmserv.opt file (buffpoolsize!).
Anyway that has been sorted and performance has also improved! The DB
buffer hist rate is now in excess of 98%, but we may still tune
further. However the bigger problem is still the aferase which seems
to happen whenever the expire inventory runs. 2 errors happen almost
immediately it starts and then a 3rd happens later. Most times the
expire inventory just hangs and we need to then halt the server.
In addition the following error occasionaly comes up.
10/15/1998 14:09:40 ANR9999D asalloc.c(1195): Missing allocation storage pool.
10/15/1998 14:09:40 ANR9999D pkshmem.c(309): Invalid attempt to free memory;
called from 101F0608 (ssReconstruct).
Any suggestions would be most appreciated.
Regards,
Simon
----------
| From: Simon S. Watson
| From: Simon S. Watson
| To: ADSM-L AT VM.MARIST DOT EDU
| Subject: Database deadlock problem
| Date: Tuesday, 13 October, 1998 4:47PM
|
| Help!
|
| We seem to be having a little problem with the database. Has
| anybody seen the following errors and more importantly, know
| what to do about them.
|
| Any help would be appreciated.
|
| Regards,
|
| Simon
|
| Environment is AIX 4.2 & ADSM 3.1.1.3
|
|
| 10/13/1998 15:41:32 ANR0390W A server database deadlock situation has been
| encountered: lock request for transaction 0:112023766
| will be denied to resolve the deadlock.
| 10/13/1998 15:41:32 ANR9999D afutil.c(1006): Lock acquisition (sLock) failed
| for bitfile root 0.
| 10/13/1998 15:41:32 ANR9999D afmove.c(991): Lock conflict queuing
volumes for
| offsite move data. Move data processing may be
| incomplete.
|
|
| 10/13/1998 15:31:49 ANR9999D aferase.c(493): Invalid logSizeRatio INF
| (logSize=0.3671, size=0.0, aggrSize=0.25959) for
| aggregate 0.13621862.
| 10/13/1998 15:31:49 ANR9999D imutil.c(1167): Error deleting object
(0 8439779)
| 10/13/1998 15:31:49 ANR9999D imexp.c(1316): Error 19 deleting expired object
| (0 8439779) - deletion will be re-tried.
| 10/13/1998 15:31:49 ANR9999D bfcreate.c(582): Bitfile erase prohibited -
| transaction failed.
| 10/13/1998 15:31:49 ANR9999D imexp.c(1338): Object 0.8439779 could not be
| deleted - expiration will continue.
|
|
|
|
|