Instance Tag Problem

endyl13 · Post by **endyl13** » Mon Apr 02, 2007 11:46 am

Hi All,

We're having a problem. We tried to change our DS itag to bcb, by changing the uvconfig and running DSEsettag.sh script (DSEsettag -itag bcb) but without root access. We had some error messages when DSEsettag was run, but the uv -admin -regen was fine. When we restarted uv -admin -start, it failed.
So we changed back the uvconfig, and rerun DSEsettag.sh -force -itag reset. The script ran okay, and we ran uv -admin -regen also no problem. We restarted the server also no problem and the user can connect and all jobs can run.
But, when we tried uv -admin -info, these warnings keep coming:
WARNING: The engine instance tag control files are not synchronized.
WARNING: Shut down the engine, and run the 'DSEsettag.sh' script.

When we checked the shared memory segments (ipcs -m -a) we could see that the memory still pointing to bcb tag instead of ade tag:

IPC status from /dev/mem as of Tue Apr 3 01:43:39 WAUST 2007
T ID KEY MODE OWNER GROUP
Shared Memory:
m 28 0xbcbc7521 --rw-rw-rw- root dsadm
m 30 0xbcbf0000 --rw-rw-rw- root dsadm
m 31 0xbcbf0001 --rw-rw-rw- root dsadm
m 19922978 0xbcbbbfd4 --rw-rw-rw- william dsadm
m 73400355 0xbcbbfd3e --rw-rw-rw- william dsadm
m 2097188 0xbcbbea82 --rw-rw-rw- william dsadm
m 56623147 0xbcbb8fda --rw-rw-rw- william dsadm
m 7340076 0xaaaa1111 --rw-rw-rw- dsadm dsadm
m 33554483 0xffffffff D-rw------- prdinst1 dba
m 2097234 0xaaaa3333 --rw-rw-rw- dsadm dsadm
m 84934742 0xbcbbbe0e --rw-rw-rw- william dsadm
m 3145820 0xaaaa2222 --rw-rw-rw- dsadm dsadm
m 66060392 0xbcbbdd46 --rw-rw-rw- william dsadm

How could this happen? Is there a way to create the shared memory segment with 0xadexxxxx instead?

Did we miss any steps?

Thanks...
Endy

ray.wurlod · Post by **ray.wurlod** » Mon Apr 02, 2007 11:54 am

After changing the setting back in uvconfig, did you re-run uvregen command?

endyl13 · Post by **endyl13** » Mon Apr 02, 2007 8:50 pm

ray.wurlod wrote:After changing the setting back in uvconfig, did you re-run uvregen command? ...

Hi Ray,
Yes Ray, we rerun the uvregen.
The steps that we did:
- login as root
- cd `cat /.dshome`
- . ./dsenv
- bin/uv -admin -stop
- change the uvconfig
- scripts/DSEsettag.sh -force -itag reset
- bin/uv -admin -regen
- bin/uv -admin -reset
- bin/uv -admin -start

DS services are okay and clients can connect, but the memory segment still pointing to bcb instance tag instead of ade.
Any hints?

Thanks...

ray.wurlod · Post by **ray.wurlod** » Mon Apr 02, 2007 10:18 pm

What changes did you make in uvconfig?

Shouldn't you supply the new value with the -itag option? (That's from memory, but I recall that -itag ade is needed to reset to ade.)

endyl13 · Post by **endyl13** » Mon Apr 02, 2007 10:32 pm

ray.wurlod wrote:What changes did you make in uvconfig?

Shouldn't you supply the new value with the -itag option? (That's from memory, but I recall that -itag ade is needed to reset to ade.) ...

When we tried to change the instance to bcb, in uvconfig we changed the parameter value of instancetag to bcb.
Then we changed it back the value to ade.