Re: ODS 7.22 on IRIX

In article <6jv14n$der$1@news.xmission.com>, Elizabeth Finson <efinson@uswest.com> writes > >Joe, after I sent you about IRIX versions I noted your reference to >ipcs. If you are having shared memory/semaphore troubles my >immediate suspicion is that the recommended system tuning hasn't >been done. There is a README with the install listing desried >(more like required) parameters. Just a guess, but this is what >leaps to my mind. Also, I have a little script called 'clear' you >might be interested in, let me know. > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >| Elizabeth Finson efinson@uswest.com| >| Web Site/Systems Administrator (206) 345-2751| >| U S WEST Creative Services | > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >| Look: trees do exist; the houses that we live in still | >| stand. We alone fly past all things, as fugitive as the | >| wind. -- Rainer Maria Rilke | > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > >On Wed, 20 May 1998, Joe Lumbley wrote: >> A customer of mine is running 7.22 ODS on a Silicon Graphics IRIX 6.X system. Isn;t 7.24 or 7.30 available ??? >> We're finding some strange stuff. Engine freezes. Onmonitor gives blank >> screen. onmode -z pid just hangs. onmode -k hangs. No action whatsoever >> from any of the onstat info commands (returns numbers, but they don't ever >> change. An oninit process jumps up and according to "top", sucks up 99.5 >> percent of CPU time, does nothing, and keeps sucking up CPU. >> I have seen this before on Online 7.10 on a Pyramid machine. It hung solid and we have to get a Pyramid engineer in. He broke out in the PROM monitor and found that Online was repeatable trying to acquire a semaphore which it could not because of a UNIX limit. i.e. you are running out of semaphores or semaphores sets. make sure all semaphore parameters are set to at least 400 and all shared memory parameters are set to at least 1000 EXCEPT SHMMIN (minimum size of a shared memory segment which should be 1). Make sure the maximum size of a shared memory segment is 512Mb or unlimited. Also check that any of the following kernel parameters (if they exist on your version of UNIX) are set to unlimited.. HDATLIM,SDATLIM,HVMMLIM,SVMMLIM,HSTKLIM,SSTKLIM >> Seems to be load related. Same query runs OK with few users, seems to trigger >> the freezup under heavier load. onstat -z hangs. Again points to UNIX kernel parameters... >> >> only way to proceed is either as root, killing the ipc's or as informix, >> kill -9 the first oninit (I know...slap my hand, but it's that or reboot) >> >> Has anyone else seen this? >> >> joe >> -- >> --------------------------------------------------------------------------- >> Joe Lumbley(jlumbley@netcom.com) author of: "INFORMIX DBA Survival Guide" >> >> Slaving away on "INFORMIX DBA Survival Guide, The SQL", available late 1998 >> from Prentice Hall/Informix Press. >> --------------------------------------------------------------------------- >> -- David Williams Maintainer of the Informix FAQ Primary site (Beta Version) http://www.smooth1.demon.co.uk Official site http://www.iiug.org/techinfo/faq/faq_top.html I see you standin', Standin' on your own, It's such a lonely place for you, For you to be If you need a shoulder, Or if you need a friend, I'll be here standing, Until the bitter end... So don't chastise me Or think I, I mean you harm... All I ever wanted Was for you To know that I care