Need Help Please on Restore
Restoring an IDS 11.5 backup onto a secondary Linux server with ontape -p failed with "Fatal error in shared memory creation" and log messages "shmget: EEXIST ... shared memory already exists / mt_shm_init can't create resident segment." Replies explained that an instance was still running or had left shared memory segments behind, and advised shutting it down or running onclean -k (and checking SERVERNUM doesn't clash with another instance on the host). The poster resolved it by locating the segment with ipcs -m and removing it with ipcrm -m; the restore then ran.
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We are trying to do a restore of our primary on the secondary. Version 11.5 on
Linux
We took a backup on the primary.
Moved it to the secondary.
When we run ontape -p
We get Continue restore y
backup logs n
oninit: Fatal error in shared memory creation.
WARNING: server initialization failed, or possibly timed out. See message log
In the log I see
IBM server started
shmget: EEXIST 17 key 52634801 shared memory already exists
mt_shm_init can't create resident segment.
What can I do to fix this? :(
Is the secondary server offline? If so, shut it down before starting the
restore.
If it is already offline, then it's likely left a memory segment in place
that needs to be removed. You can do this with ipcs, but it's easier (and
safer) to run "onclean -k". Just make sure that you are on the correct
server before running this.
Mike Walker
Advanced DataTools Corporation
-----Original Message-----
From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of BENJI
LONG
Sent: Tuesday, April 17, 2018 3:25 PM
To: ids@iiug.org
Subject: Need Help Please on Restore [40992]
We are trying to do a restore of our primary on the secondary. Version 11.5
on Linux
We took a backup on the primary.
Moved it to the secondary.
When we run ontape -p
We get Continue restore y
backup logs n
oninit: Fatal error in shared memory creation.
WARNING: server initialization failed, or possibly timed out. See message
log
In the log I see
IBM server started
shmget: EEXIST 17 key 52634801 shared memory already exists mt_shm_init
can't create resident segment.
What can I do to fix this? :(
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***
Forum Note: Use "Reply" to post a response in the discussion forum.
Benji
You have segments in the shared memory , you can remove with : onclean -k
Regards
On Tue, Apr 17, 2018 at 6:25 PM, BENJI LONG <ruggedmouse@hotmail.com> wrote:
> We are trying to do a restore of our primary on the secondary. Version
> 11.5 on
> Linux
>
> We took a backup on the primary.
> Moved it to the secondary.
>
> When we run ontape -p
> We get Continue restore y
> backup logs n
> oninit: Fatal error in shared memory creation.
>
> WARNING: server initialization failed, or possibly timed out. See message
> log
>
> In the log I see
> IBM server started
> shmget: EEXIST 17 key 52634801 shared memory already exists
> mt_shm_init can't create resident segment.
>
> What can I do to fix this? :(
>
>
>
*******************************************************************************
>
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>
It looks like you already have an instance running on your secondary. If
you're trying to replace it and restart replication or something like that,
shut down the instance on your secondary before your restore.
-----Original Message-----
From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of BENJI
LONG
Sent: Tuesday, April 17, 2018 4:25 PM
To: ids@iiug.org
Subject: Need Help Please on Restore [40992]
We are trying to do a restore of our primary on the secondary. Version 11.5 on
Linux
We took a backup on the primary.
Moved it to the secondary.
When we run ontape -p
We get Continue restore y
backup logs n
oninit: Fatal error in shared memory creation.
WARNING: server initialization failed, or possibly timed out. See message log
In the log I see
IBM server started
shmget: EEXIST 17 key 52634801 shared memory already exists mt_shm_init can't
create resident segment.
What can I do to fix this? :(
*******************************************************************************
Forum Note: Use "Reply" to post a response in the discussion forum.
Thanks for the quick response. I will give this a try
Also make sure the SERVERNUM in the onconfig does not match with another server on the same host or you will affect the other server! Regards, David. > On 17 April 2018 at 22:52 BENJI LONG <ruggedmouse@hotmail.com> wrote: > > > Thanks for the quick response. I will give this a try > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. >
Looks like my restore is now running Had to run ipcs -m | grep 5263 Then ipcrm -m <#returned from above>