On Thursday 26 June 2003 01:04, you wrote: > Greetings, > > We have recently corrected a problem with random AOLserver crashes, and now
Was it somewhere in AOLserver code? If yes, do you mind opening a bug report so we can fix that? > we are seeing a different problem: ever-increasing memory usage by our > primary application service between restarts. Some of our application > functions require fairly extensive string processing, which is currently > handled by manipulating large local variables in memory. As nearly as we > can tell, none of this memory is ever freed after usage, even when page > processing is completed. If left unchecked, this eventually runs the > webserver out of physical memory and paging begins...with predictably > negative results. We can work around the problem by restarting the > services every few days, but that's what we were trying to avoid in the > first place. > > :-) I understand that by "manipulating large local variables in memory" you mean variables local to the connection interpreter, not AOL shared variables (arrays). You could try "ns_atclose" to fire up scripts at the end of each connection. There you can devise a custom garbage-collection scheme. If the nature of data is such that it can be shared among threads, you can try the nsv* interface, but this would require changes to your script code. > > Does anyone have any experience with this type of problem? Is this > expected behavior, or is there special handling required to reclaim process > memory (e.g., using a trace filter to unset variables after processing is > completed)? See above. > > Also, is there any simple way to determine how much memory is allocated for > a particular Tcl variable? This would be helpful if we end up needing to > optimize our existing code, and a quick look at the built-in Tcl functions > and AOLserver API did not turn up anything that meets this need. > There is no way to do this, AFAIK. Cheers, Zoran -- AOLserver - http://www.aolserver.com/ To Remove yourself from this list, simply send an email to <[EMAIL PROTECTED]> with the body of "SIGNOFF AOLSERVER" in the email message. You can leave the Subject: field of your email blank.
