On Feb 6, 2004, at 11:42 AM, Jeff Bohmer wrote:
It seems like the app server on OS X crashes a lot under load. I've done tests against Witango/OS X and found that as long as requests were coming in sequentially, so that only one thread was active on the app server, it would run and run without problems. But once the same requests were run in parallel so that multiple threads were active, the app server crashed frequently.
I've tried different ODBC settings and driver managers with no luck (except for unix odbc which I never could get to work on OS X). I also tried JDBC and OS X 10.3 (the last preview at the time -- not the final release) and the crashes still happened. I've spent over 100 hours on this problem and can't figure out how to make the app server on OS X behave.
I still haven't finished all necessary testing to be able to say exactly what does or doesn't work with OS X. But at this point it's my opinion that the problem is with OS X and NOT with the app server. I've found that the app server on Linux doesn't have this crashing problem and is also much faster. The Windows version is probably OK too but I've never used it.
- Jeff
one other clue: Console sez:
[ 4058] 2004-02-06 01:35:40 RUNTIME WARNING Unable to open to odbc.nagel due to an error during connection
[ 4058] 2004-02-06 01:35:40 RUNTIME INFO Total Connection in Datasource Pool: 1 Max connections for the host: 0 Current connections in use for the host: 0
[ 4058] 2004-02-06 01:49:39 RUNTIME FATAL Caught fatal signal 11 (SIGSEGV); thread id = 4397920; code: 1; address: 00068b00; value: 00000000; errno: 0; status: 0;
odbc.nagel is a data source (accessed a lot)
On Feb 6, 2004, at 10:14 AM, Jason Pamental wrote:
Ben-
Actaully, the same thing occurred to me, so I don't think your disclaimer is needed... but the permissions thing seems to go wrong far more frequently than RAM chips. But a really good suggestion. See if this is the same 'funny number' (or really close, if you're good at reading Hexadecimal):
Codes: KERN_INVALID_ADDRESS (0x0001) at >>>>> 0x028d7fff <<<<<<
(I've put lots of pointy arrows around the number to watch...)
Jason
On Feb 6, 2004, at 1:05 PM, Ben Johansen wrote:
Disclaimer: Not a Mac Guy ;-)
This sounds a lot like a RAM module going bad.
This can be intermittent for several reasons
-the ram chip is fail intermittently
-the failed location on the ram chip is in a high mem address and only
is reached under higher loads.
One thing you can do when looking at those funny number is to see if you
see a consistent funny number :)
Ben Johansen - http://www.pcforge.com Authorized Witango & MDaemon Reseller Available for Witango Developement
-----Original Message----- From: Roland Dumas [mailto:[EMAIL PROTECTED] Sent: Friday, February 06, 2004 12:58 PM To: [EMAIL PROTECTED] Subject: Re: Witango-Talk: Crashes on OS X
On Feb 6, 2004, at 9:29 AM, Jason Pamental wrote:
Roland,
Have you tried the 'standard Mac OS X voodoo' of running the 'repair
permissions' bit in the disk utility (applications/utilities)?
can you run the disk utility to fix permissions while server is in operation?
____________________________________________________________________ __ __
TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
____________________________________________________________________ __ __
TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
-- ____________________________________________________________________
Jason Pamental, President [EMAIL PROTECTED]
Bathysphere Digital Media Services, Inc. http://bathyspheredms.com
____________________________________________________________________
Tel: 401.490.6830 Fax: 401.490.6831 ________________________________________
A North American Distributor for Witango (http://www.witango.us)
Rapid Web Application Development - XML Execution Engine
_____________________________________________________________________ __ _
TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
______________________________________________________________________ __
TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
--
Jeff Bohmer
VisionLink, Inc.
_________________________________
303.402.0170
www.visionlink.org
_________________________________
People. Tools. Change. Community.
_______________________________________________________________________ _
TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
--- Jon van der Raadt
TeamOnly Network
412, Alastair Ross Technology Centre 3553 - 31 Street NW Calgary, Alberta Canada T2L 2K7
http://www.teamonly.net
Office: (403) 286-5586 Fax: (403) 286-5576
Cell: (403) 863-6304 Email: [EMAIL PROTECTED]
________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
