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Redirecting Cache Folder
Hi everybody,
this solution applies only to network user accounts (Home folder on server) configuration and Leopard on Workstations.That doesn’t work with Tiger Workstations.
Safari, Firefox, MS Office, Pages etc… have a cache folder. This cache is in the User_Home_Folder/library/Caches located on the server. If you have a hundred users logged in on your server and using a web browser, their cache folder is being re-written non-stop with temporary files. This cache folder size increases with time. That creates heavy network communication between your workstations and server.
The solution is on page 13 of Leopard Server Quickstart. The goal is to redirect the cache locally on the user workstation.
In my case, CPU loads went from %130 to %20.
My network has the same problem
I run an art college’s data network, usually 50-100 people connected via AFP to OS/X 10.5.8 server. Over the past week we’ve had our AFP service go bananas and create a 40TB+ file in random users’ Firefox Profile directory spaces. It’s exactly as you describe.
Interestingly enough, last year our Apple Sales Engineers, while ‘helping’ us trouble-shoot the now-well-published run-away AFP issue, convinced us to upgrade our AFP/OD server. We did, our problems became much lighter in frequency but now this Firefox 3 thing has surfaced.
Have you heard any word from the Mozilla team? Has Apple contacted them or vice-versa? We’ve elected to dump Firefox for now but have had to replace it with a compliant browser other than Safari because of two large-scale collaborative server system our college uses.
Thanks for reporting the issue.
Firefox 3
Dear all,
We have been experiencing this for a lot of time now.
Today we did an experiment: Kill Firefox on all Macs.
The load suddenly went down to 4-5% on AppleFileServer with 40 Users.
Check if your users are using Firefox 3. People on other platforms are getting the same behaviour: https://bugzilla.mozilla.org/show_bug.cgi?id=441481
I instructed all my users to use Safari for the moment. For 10 hours, the load on the server has been fine and everything works as it should.
I hope this solves it for you, because for us, it’s been a nightmare…
The problem here lies on how Firefox currently handles the urlclassifier3.sqlite and other sqlite files. It seems that it perform some badass filelocking that consequently leads to a thread shortage, that makes less threads available to serve, which, we think, leads to a penalty on accesing the disk. Also, that file is being updated continuously by google servers in an incremental way.
A simple fs_usage AppleFileServer will show you quite some access to that file. Please note that even only 4 users running firefox makes our 4 cores go 100% and our clients to beachball.
afp server problem
After we have deleted all ds-Store files, the server works normal.
Did Security Update solve the Problem?
did someone installed Security Update 2009-1 ??
- AFP Server
CVE-ID: CVE-2009-0142
Available for: Mac OS X v10.5.6, Mac OS X Server v10.5.6
Impact: A user with the ability to connect to AFP Server may be a able to trigger a denial of service
Description: A race condition in AFP Server may lead to an infinite loop. Enumerating files on an AFP server may lead to a denial of service. This update addresses the issue through improved file enumeration logic. This issue only affects systems running Mac OS X v10.5.6.
Please post your feedback here, if the Security Update fix the AFP Problem !!
Re: afp server issue - very hign cpu load
That little birdy was wrong. Still having the issue here. Of course this was applying the update to only the server, and not the clients. If this
Source: http://discussions.apple.com/rss/rssmessages.jspa?threadID=1685965
Re: afp server issue - very hign cpu load
a little birdy tells me that the issue is fixed in the latest update released last night. Fixed under the premise of a security update.. Time will
Source: http://discussions.apple.com/rss/rssmessages.jspa?threadID=1685965
Re: afp server issue - very hign cpu load
I’ve installed the update. So far so good.
Source: http://discussions.apple.com/rss/rssmessages.jspa?threadID=1685965
Re: afp server issue - very hign cpu load
I plan on upgrading over the weekend. From the Read Me:
Source: http://discussions.apple.com/rss/rssmessages.jspa?threadID=1685965