Fatal error in shred memeory creation
After a power failure, IDS 9.21 on HP-UX 11 refused to start, with oninit failing at "Initializing rhead structure" / "Fatal error in shared memory creation" and the online log showing shmmax too small, multiple segments created, "semget: errno = 28" and "create_vp: cannot allocate memory". Respondents blamed kernel tuning, suggesting SHMMAX/semaphore parameters be set per the release notes (or ONCONFIG BUFFERS/SHMVIRTSIZE/SHMADD reduced), and one joked RAM had been removed. The poster's resolution: the UNIX admin restored a system backup taken before the power failure, and the server came up normally.
Auto-generated by DrWatson from the posts below — may be imperfect; read the full thread.
I am running IDS 9.21 on HP-UX 11 on a test box trying to test upgrade.
Whilst i was away on holiday recently there was a power failure and now I get
Fatal error in shared memory creation when I try to run oninit.
The online .log shows
08:49:53 Informix Dynamic Server 2000 Started.
08:49:53 shmmax is configured too small to allow a single resident+virtual
segment.
Multiple OS shared memory segments will be required
08:49:53 Could not create single shared memory segment with resident and
non-resident par
titions. Proceeding to create 2 shared memory segments instead.
08:49:54 Segment locked: addr=0xc1307000, size=92946432
08:49:54 Segment locked: addr=0xc1307000, size=92946432
08:49:54 semget: errno = 28
08:49:54 create_vp: cannot allocate memory
if I run oninit v I get
hps02(informix): oninit -v
Checking group membership to determine server run modesucceeded
Reading configuration file '/users/informix/etc/onconfig.hps02'...succeeded
Creating /INFORMIXTMP/.infxdirs ... succeeded
Creating infos file "/users/informix/etc/.infos.hps02" ...
"/users/informix/etc/.conf.hps02" ... succeeded
Writing to infos file ... succeeded
Checking config parameters...succeeded
Allocating and attaching to shared memory...succeeded
Creating resident pool 10414 kbytes...succeeded
Creating buffer pool 80002 kbytes...succeeded
Initializing rhead structure...FAILED
oninit: Fatal error in shared memory creation
Any ideas before I resort to rebuilding server from scratch again !!!
Sue
SUE SIMMONDS said:
> I am running IDS 9.21 on HP-UX 11 on a test box trying to test upgrade.
>
> Whilst i was away on holiday recently there was a power failure and now I
> get
> Fatal error in shared memory creation when I try to run oninit.
>
> The online .log shows
>
> 08:49:53 Informix Dynamic Server 2000 Started.
> 08:49:53 shmmax is configured too small to allow a single resident+virtual
> segment.
> Multiple OS shared memory segments will be required
> 08:49:53 Could not create single shared memory segment with resident and
> non-resident par
>
> titions. Proceeding to create 2 shared memory segments instead.
> 08:49:54 Segment locked: addr=0xc1307000, size=92946432
> 08:49:54 Segment locked: addr=0xc1307000, size=92946432
> 08:49:54 semget: errno = 28
>
> 08:49:54 create_vp: cannot allocate memory
>
> if I run oninit v I get
>
> hps02(informix): oninit -v
> Checking group membership to determine server run modesucceeded
> Reading configuration file
> '/users/informix/etc/onconfig.hps02'...succeeded
> Creating /INFORMIXTMP/.infxdirs ... succeeded
> Creating infos file "/users/informix/etc/.infos.hps02" ...
> "/users/informix/etc/.conf.hps02" ... succeeded
> Writing to infos file ... succeeded
> Checking config parameters...succeeded
> Allocating and attaching to shared memory...succeeded
> Creating resident pool 10414 kbytes...succeeded
> Creating buffer pool 80002 kbytes...succeeded
> Initializing rhead structure...FAILED
> oninit: Fatal error in shared memory creation
>
> Any ideas before I resort to rebuilding server from scratch again !!!
It looks from the error messages that your kernel config isn't up to
scratch. Check in the release notes for what parameters were set to what
values and check that your kernel config is similar.
--
Bye now,
Obnoxio
"I'm astonished anyone pays real money for this crap."
-- Cosmo
"Cluster in my trousers"
-- Guy Bowerman
--
This message has been scanned for viruses and
dangerous content by OpenProtect(http://www.openprotect.com), and is
believed to be clean.
Hi,
It seems your OS settings for SHMMAX are not large enough to fit the
shared memory you want to acquire in onconfig.
Modify your SHM/SEM system vars on the test box according to your
original system.
Marcus
-----Original Message-----
From: SUE SIMMONDS [mailto:sues@hmgcc.gsi.gov.uk]
Sent: Thursday, August 30, 2007 10:29 AM
To: ids@iiug.org
Subject: Fatal error in shred memeory creation [9878]
I am running IDS 9.21 on HP-UX 11 on a test box trying to test upgrade.
Whilst i was away on holiday recently there was a power failure and now
I get Fatal error in shared memory creation when I try to run oninit.
The online .log shows
08:49:53 Informix Dynamic Server 2000 Started.
08:49:53 shmmax is configured too small to allow a single
resident+virtual segment.
Multiple OS shared memory segments will be required
08:49:53 Could not create single shared memory segment with resident and
non-resident par
titions. Proceeding to create 2 shared memory segments instead.
08:49:54 Segment locked: addr=0xc1307000, size=92946432
08:49:54 Segment locked: addr=0xc1307000, size=92946432
08:49:54 semget: errno = 28
08:49:54 create_vp: cannot allocate memory
if I run oninit v I get
hps02(informix): oninit -v
Checking group membership to determine server run modesucceeded Reading
configuration file '/users/informix/etc/onconfig.hps02'...succeeded
Creating /INFORMIXTMP/.infxdirs ... succeeded Creating infos file
"/users/informix/etc/.infos.hps02" ...
"/users/informix/etc/.conf.hps02" ... succeeded Writing to infos file
... succeeded Checking config parameters...succeeded Allocating and
attaching to shared memory...succeeded Creating resident pool 10414
kbytes...succeeded Creating buffer pool 80002 kbytes...succeeded
Initializing rhead structure...FAILED
oninit: Fatal error in shared memory creation
Any ideas before I resort to rebuilding server from scratch again !!!
Sue
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Forum Note: Use "Reply" to post a response in the discussion forum.
Being a suspicious soul... ...someone didn't take the opportunity and remove
some of the RAM while you were away?
>From: "SUE SIMMONDS" <sues@hmgcc.gsi.gov.uk>
>Reply-To: ids@iiug.org
>To: ids@iiug.org
>Subject: Fatal error in shred memeory creation [9878]
>Date: Thu, 30 Aug 2007 04:28:41 -0400 (EDT)
>
>I am running IDS 9.21 on HP-UX 11 on a test box trying to test upgrade.
>
>Whilst i was away on holiday recently there was a power failure and now I
>get
>Fatal error in shared memory creation when I try to run oninit.
>
>The online .log shows
>
>08:49:53 Informix Dynamic Server 2000 Started.
>08:49:53 shmmax is configured too small to allow a single resident+virtual
>segment.
>Multiple OS shared memory segments will be required
>08:49:53 Could not create single shared memory segment with resident and
>non-resident par
>
>titions. Proceeding to create 2 shared memory segments instead.
>08:49:54 Segment locked: addr=0xc1307000, size=92946432
>08:49:54 Segment locked: addr=0xc1307000, size=92946432
>08:49:54 semget: errno = 28
>
>08:49:54 create_vp: cannot allocate memory
>
>if I run oninit v I get
>
>hps02(informix): oninit -v
>Checking group membership to determine server run modesucceeded
>Reading configuration file '/users/informix/etc/onconfig.hps02'...succeeded
>Creating /INFORMIXTMP/.infxdirs ... succeeded
>Creating infos file "/users/informix/etc/.infos.hps02" ...
>"/users/informix/etc/.conf.hps02" ... succeeded
>Writing to infos file ... succeeded
>Checking config parameters...succeeded
>Allocating and attaching to shared memory...succeeded
>Creating resident pool 10414 kbytes...succeeded
>Creating buffer pool 80002 kbytes...succeeded
>Initializing rhead structure...FAILED
>oninit: Fatal error in shared memory creation
>
>Any ideas before I resort to rebuilding server from scratch again !!!
>
>Sue
>
>
>*******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
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Andrew Lennard said: > Being a suspicious soul... ...someone didn't take the opportunity and > remove > some of the RAM while you were away? I don't want to work where you work ... :o) -- Bye now, Obnoxio "I'm astonished anyone pays real money for this crap." -- Cosmo "Cluster in my trousers" -- Guy Bowerman -- This message has been scanned for viruses and dangerous content by OpenProtect(http://www.openprotect.com), and is believed to be clean.
Sue,
I suggest that you tune the OS of the server to allocate one big
memory chunk rather then multiple smaller ones. You can use ipcs -m to
determine the number of segments allocated by Informix. Maybe you need
to reduce the amount of memory allocated by Informix (BUFFERS,
SHMVIRTSIZE , SHMADD) and try to startup the server. Shmget allocates
shared memory, for me it shows that your kernel is not tuned correctly.
Kenneth Penza
Systems Engineer
Systems and Database Services
Service Management Department
Malta Information Technology & Training Services Ltd
Please read our Legal Notice: http://emailpolicy.mitts.gov.mt
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-----Original Message-----
From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of
Andrew Lennard
Sent: 30 August 2007 19:28
To: ids@iiug.org
Subject: RE: Fatal error in shred memeory creation [9882]
Being a suspicious soul... ...someone didn't take the opportunity and
remove
some of the RAM while you were away?
>From: "SUE SIMMONDS" <sues@hmgcc.gsi.gov.uk>
>Reply-To: ids@iiug.org
>To: ids@iiug.org
>Subject: Fatal error in shred memeory creation [9878]
>Date: Thu, 30 Aug 2007 04:28:41 -0400 (EDT)
>
>I am running IDS 9.21 on HP-UX 11 on a test box trying to test upgrade.
>
>Whilst i was away on holiday recently there was a power failure and now
I
>get
>"Fatal error in shared memory creation" when I try to run oninit.
>
>The online .log shows
>
>08:49:53 Informix Dynamic Server 2000 Started.
>08:49:53 shmmax is configured too small to allow a single
resident+virtual
>segment.
>Multiple OS shared memory segments will be required
>08:49:53 Could not create single shared memory segment with resident
and
>non-resident par
>
>titions. Proceeding to create 2 shared memory segments instead.
>08:49:54 Segment locked: addr=0xc1307000, size=92946432
>08:49:54 Segment locked: addr=0xc1307000, size=92946432
>08:49:54 semget: errno = 28
>
>08:49:54 create_vp: cannot allocate memory
>
>if I run oninit -v I get
>
>hps02(informix): oninit -v
>Checking group membership to determine server run modesucceeded
>Reading configuration file
'/users/informix/etc/onconfig.hps02'...succeeded
>Creating /INFORMIXTMP/.infxdirs ... succeeded
>Creating infos file "/users/informix/etc/.infos.hps02" ...
>"/users/informix/etc/.conf.hps02" ... succeeded
>Writing to infos file ... succeeded
>Checking config parameters...succeeded
>Allocating and attaching to shared memory...succeeded
>Creating resident pool 10414 kbytes...succeeded
>Creating buffer pool 80002 kbytes...succeeded
>Initializing rhead structure...FAILED
>oninit: Fatal error in shared memory creation
>
>Any ideas before I resort to rebuilding server from scratch again !!!
>
>Sue
>
>
>***********************************************************************
********
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
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http://maps.live.com
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Forum Note: Use "Reply" to post a response in the discussion forum.
FYI - My UNIX Administrator has restored a system backup taken before the power failure and my Database server is now up and running.