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shm error on Solaris 8

9 messages in this thread

list Stephen Menton · Wed, 27 Sep 2006 12:57:22 -0700 · 
I saw a problem similar to mine on this thread: http://www.hswn.dk/hobbiton/2006/08/msg00667.html <http://www.hswn.dk/hobbiton/2006/08/msg00667.html>; 
My situation may be a little different though. In my case I've been tasked with running a hobbit instance in parallel with an existing bb4 instance ON THE SAME HOST. I've modified my hobbitserver.cfg to run on port 1985 but I get the same error in /var/log/hobbitlaunch.log as David observed. A section of the logs follows (similar messages repeat):
2006-09-27 12:48:56 hobbitlaunch starting
2006-09-27 12:48:56 Loading tasklist configuration from /opt/home/hobbit/server/etc/hobbitlaunch.cfg
2006-09-27 12:48:56 Loading hostnames
2006-09-27 12:48:56 Loading saved state
2006-09-27 12:48:56 Cannot access checkpoint file /opt/home/hobbit/server/tmp/hobbitd.chk for restore
2006-09-27 12:48:56 Setting up network listener on 0.0.0.0:1985
2006-09-27 12:48:56 Setting up signal handlers
2006-09-27 12:48:56 Setting up hobbitd channels
2006-09-27 12:48:56 Could not attach shm Too many open files
2006-09-27 12:48:56 Cannot setup client channel
2006-09-27 12:48:56 Task hobbitd terminated, status 1

Help? I'm not comfortable tweaking kernel parameters. Can someone walk me through it? Should it solve my problems? Can hobbit and bb4 co-exist on the same host?
 
 
Stephen F. Menton  メントン・スティーバン
Cingular Wireless, Business Consultant I
IT Billing Operations, Performance Monitoring
user-4db528dfd7f0@xymon.invalid
(XXX) XXX-XXXX - office
list Stephen Menton · Thu, 28 Sep 2006 11:43:55 -0700 · 
I've modified /etc/system to include:
set shmsys:shminfo_shmseg=7
 and rebooted... but I still get the exact same error. What else must be changed for Solaris 8 ?
▸ quoted from Stephen Menton

	-----Original Message-----
	From: Menton, Stephen 	Sent: Wednesday, September 27, 2006 12:57 PM
	To: user-ae9b8668bcde@xymon.invalid
	Subject: [hobbit] shm error on Solaris 8
	
	
	I saw a problem similar to mine on this thread: http://www.hswn.dk/hobbiton/2006/08/msg00667.html <http://www.hswn.dk/hobbiton/2006/08/msg00667.html>; 	My situation may be a little different though. In my case I've been tasked with running a hobbit instance in parallel with an existing bb4 instance ON THE SAME HOST. I've modified my hobbitserver.cfg to run on port 1985 but I get the same error in /var/log/hobbitlaunch.log as David observed. A section of the logs follows (similar messages repeat): 	 	2006-09-27 12:48:56 hobbitlaunch starting
	2006-09-27 12:48:56 Loading tasklist configuration from /opt/home/hobbit/server/etc/hobbitlaunch.cfg
	2006-09-27 12:48:56 Loading hostnames
	2006-09-27 12:48:56 Loading saved state
	2006-09-27 12:48:56 Cannot access checkpoint file /opt/home/hobbit/server/tmp/hobbitd.chk for restore
	2006-09-27 12:48:56 Setting up network listener on 0.0.0.0:1985
	2006-09-27 12:48:56 Setting up signal handlers
	2006-09-27 12:48:56 Setting up hobbitd channels
	2006-09-27 12:48:56 Could not attach shm Too many open files
	2006-09-27 12:48:56 Cannot setup client channel
	2006-09-27 12:48:56 Task hobbitd terminated, status 1 	 	Help? I'm not comfortable tweaking kernel parameters. Can someone walk me through it? Should it solve my problems? Can hobbit and bb4 co-exist on the same host?
	 	Stephen F. Menton  メントン・スティーバン
	Cingular Wireless, Business Consultant I
	IT Billing Operations, Performance Monitoring
	user-4db528dfd7f0@xymon.invalid
	(XXX) XXX-XXXX - office
list Charles Jones · Thu, 28 Sep 2006 12:11:15 -0700 · 
try running "ulimit -a" and see if you are being limited as to how many
open files or memory you can access. If so you can change the limit to
unlimited.

-Charles
▸ quoted from Stephen Menton

Menton, Stephen wrote:
I've modified /etc/system to include:
set shmsys:shminfo_shmseg=7
and rebooted... but I still get the exact same error. What else must
be changed for Solaris 8 ?

    -----Original Message-----
    *From:* Menton, Stephen
    *Sent:* Wednesday, September 27, 2006 12:57 PM
    *To:* user-ae9b8668bcde@xymon.invalid
    *Subject:* [hobbit] shm error on Solaris 8

    I saw a problem similar to mine on this thread:
    http://www.hswn.dk/hobbiton/2006/08/msg00667.html
    My situation may be a little different though. In my case I've
    been tasked with running a hobbit instance in parallel with an
    existing bb4 instance ON THE SAME HOST. I've modified my
    hobbitserver.cfg to run on port 1985 but I get the same error in
    /var/log/hobbitlaunch.log as David observed. A section of the logs
    follows (similar messages repeat):
    2006-09-27 12:48:56 hobbitlaunch starting
    2006-09-27 12:48:56 Loading tasklist configuration from
    /opt/home/hobbit/server/etc/hobbitlaunch.cfg
    2006-09-27 12:48:56 Loading hostnames
    2006-09-27 12:48:56 Loading saved state
    2006-09-27 12:48:56 Cannot access checkpoint file
    /opt/home/hobbit/server/tmp/hobbitd.chk for restore
    2006-09-27 12:48:56 Setting up network listener on 0.0.0.0:1985
    2006-09-27 12:48:56 Setting up signal handlers
    2006-09-27 12:48:56 Setting up hobbitd channels
    2006-09-27 12:48:56 Could not attach shm Too many open files
    2006-09-27 12:48:56 Cannot setup client channel
    2006-09-27 12:48:56 Task hobbitd terminated, status 1

    Help? I'm not comfortable tweaking kernel parameters. Can someone

    walk me through it?Should it solve my problems? Can hobbit and bb4
▸ quoted from Stephen Menton
    co-exist on the same host?
    Stephen F. Menton メントン・スティーバン
    Cingular Wireless, Business Consultant I
    IT Billing Operations, Performance Monitoring

    user-4db528dfd7f0@xymon.invalid <mailto:user-4db528dfd7f0@xymon.invalid>
    (XXX) XXX-XXXX - office
list Stephen Menton · Thu, 28 Sep 2006 12:32:56 -0700 · 
Ahh, file descriptors is at it's default, 256. Does this need to be increased? I've tried doing a 'ulimit -n 1024' and confirmed the change before doing "./server/hobbit.sh start" and it hasn't changed the results.
 
Do I need to change something again in /etc/system to make this a permanent change ?
 
steve
▸ quoted from Charles Jones

	-----Original Message-----
	From: Charles Jones [mailto:user-e86b4aeade4e@xymon.invalid] 
	Sent: Thursday, September 28, 2006 12:11 PM  
	To: user-ae9b8668bcde@xymon.invalid
	Subject: Re: [hobbit] shm error on Solaris 8
	
	
	try running "ulimit -a" and see if you are being limited as to how many open files or memory you can access. If so you can change the limit to unlimited.
	
	-Charles
	
	Menton, Stephen wrote: 

		I've modified /etc/system to include:
		set shmsys:shminfo_shmseg=7
		 
		and rebooted... but I still get the exact same error. What else must be changed for Solaris 8 ?

			-----Original Message-----
			From: Menton, Stephen 
			Sent: Wednesday, September 27, 2006 12:57 PM
			To: user-ae9b8668bcde@xymon.invalid
			Subject: [hobbit] shm error on Solaris 8
			
			
			I saw a problem similar to mine on this thread: http://www.hswn.dk/hobbiton/2006/08/msg00667.html <http://www.hswn.dk/hobbiton/2006/08/msg00667.html>; 
			My situation may be a little different though. In my case I've been tasked with running a hobbit instance in parallel with an existing bb4 instance ON THE SAME HOST. I've modified my hobbitserver.cfg to run on port 1985 but I get the same error in /var/log/hobbitlaunch.log as David observed. A section of the logs follows (similar messages repeat): 
			 
			2006-09-27 12:48:56 hobbitlaunch starting
			2006-09-27 12:48:56 Loading tasklist configuration from /opt/home/hobbit/server/etc/hobbitlaunch.cfg
			2006-09-27 12:48:56 Loading hostnames
			2006-09-27 12:48:56 Loading saved state
			2006-09-27 12:48:56 Cannot access checkpoint file /opt/home/hobbit/server/tmp/hobbitd.chk for restore
			2006-09-27 12:48:56 Setting up network listener on 0.0.0.0:1985
			2006-09-27 12:48:56 Setting up signal handlers
			2006-09-27 12:48:56 Setting up hobbitd channels
			2006-09-27 12:48:56 Could not attach shm Too many open files
			2006-09-27 12:48:56 Cannot setup client channel
			2006-09-27 12:48:56 Task hobbitd terminated, status 1 
			
			Help? I'm not comfortable tweaking kernel parameters. Can someone walk me through it? Should it solve my problems? Can hobbit and bb4 co-exist on the same host?
			 
			Stephen F. Menton  メントン・スティーバン
			Cingular Wireless, Business Consultant I
			IT Billing Operations, Performance Monitoring
			user-4db528dfd7f0@xymon.invalid
			(XXX) XXX-XXXX - office
list Nicolas Dorfsman · Thu, 28 Sep 2006 21:34:56 +0200 ·
▸ quoted from Charles Jones
Le 28 sept. 06 à 21:11, Charles Jones a écrit :

try running "ulimit -a" and see if you are being limited as to how  many open files or memory you can access. If so you can change the  limit to unlimited.
No. I don't think it could be the right way.  (and this is limited to  1024...rlim_fd_max in /etc/system)

2006-09-27 12:48:56 Could not attach shm Too many open files

extract of man shmat :

      EMFILE
            The number of shared memory segments attached  to  the
            calling process would exceed the system-imposed limit.


I have one box with 8 segment for hobbit.

Why don't you put shmseg to 32 and try again ?
set shmsys:shminfo_shmseg=32  (I'd even set it to 64)

and also increase shminfo_shmmni
set shmsys:shminfo_shmmni=512


http://docs.sun.com/app/docs/doc/816-0607/6m735r5fq?q=tunable +kernel&a=view

Nicolas


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list Nicolas Dorfsman · Thu, 28 Sep 2006 21:37:25 +0200 ·
▸ quoted from Stephen Menton
Le 28 sept. 06 à 21:32, Menton, Stephen a écrit :

Ahh, file descriptors is at it's default, 256. Does this need to be  increased? I've tried doing a 'ulimit -n 1024' and confirmed the  change before doing "./server/hobbit.sh start" and it hasn't  changed the results.

Do I need to change something again in /etc/system to make this a  permanent change ?

rlim_fd_cur

see http://docs.sun.com/app/docs/doc/816-0607/6m735r5fi?q=tunable +kernel&a=view


...but can't be that ( see previous mail )
list Nicolas Dorfsman · Thu, 28 Sep 2006 21:49:41 +0200 ·
▸ quoted from Nicolas Dorfsman
Le 28 sept. 06 à 21:34, Nicolas Dorfsman a écrit :

Why don't you put shmseg to 32 and try again ?
set shmsys:shminfo_shmseg=32  (I'd even set it to 64)

and also increase shminfo_shmmni
set shmsys:shminfo_shmmni=512

Check also that your tunnables are really set :

# sysdef -i | grep SHM


Nicolas
list Stephen Menton · Thu, 28 Sep 2006 12:54:25 -0700 · 
# sysdef -i | grep SHM
   1048576      max shared memory segment size (SHMMAX)
     1  min shared memory segment size (SHMMIN)
   100  shared memory identifiers (SHMMNI)
     7  max attached shm segments per process (SHMSEG)
▸ quoted from Nicolas Dorfsman

-----Original Message-----
From: Nicolas Dorfsman [mailto:user-0b8cdfcc881d@xymon.invalid] 
Sent: Thursday, September 28, 2006 12:50 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] shm error on Solaris 8


Le 28 sept. 06 à 21:34, Nicolas Dorfsman a écrit :

Why don't you put shmseg to 32 and try again ?
set shmsys:shminfo_shmseg=32  (I'd even set it to 64)

and also increase shminfo_shmmni
set shmsys:shminfo_shmmni=512

Check also that your tunnables are really set :

# sysdef -i | grep SHM


Nicolas
list Nicolas Dorfsman · Thu, 28 Sep 2006 22:03:11 +0200 ·
▸ quoted from Stephen Menton
Le 28 sept. 06 à 21:54, Menton, Stephen a écrit :

# sysdef -i | grep SHM
   1048576      max shared memory segment size (SHMMAX)
     1  min shared memory segment size (SHMMIN)
   100  shared memory identifiers (SHMMNI)
     7  max attached shm segments per process (SHMSEG)
wow

put that :


set shmsys:shminfo_shmmax=16777216
set shmsys:shminfo_shmseg=64
set shmsys:shminfo_shmmni=512

rlim_fd_max=2048
rlim_fd_cur=1024