Re: OSX Server 4.10: hidden HUGE Log file

Hello,

Two other useful Mac OS X applications in this vein are:

GrandPerspective (I think this has been previously mentioned on this
list; a visual view, similar to Disk Inventory X):
http://grandperspectiv.sourceforge.net/

Whatsize (browser type view):
http://www.id-design.com/software/whatsize/

I personally use both and find they each have their strengths.

Regards,
Tony

On Aug 29, 2007, at 12:32 PM, Roy A. Baril wrote:

> To all,
>
> Another very usefull (and free) tool is Disk Inventory X. It has a
> very nice graphical interface. You can find this at the following
> link.
>
> http://www.derlien.com/
>
> Best,
>
> Roy
>
> At 12:00 PM 8/29/2007, Aron Roberts wrote:
>> At 09:44 -0700 2007-08-29, Pedro Alvarez Jr wrote:
>>> Thanks to all for the help in finding this file which was located
>>> in:
>>> /var/log/webperfcahe/webperfcache_log.0 and was over 25gb in size!
>>> Anyone have an idea of how this file gets so big and how to avoid
>>> it? Should I be periodically deleting this file?
>>
>> Via a quick Google search, it appears this log file *may* be
>> associated with a performance cache for the Apache web server in
>> Mac OS X Server. *If* so ...
>>
>> This cache is said in one posting (untried by me) to be
>> configurable in the "Server Admin" app, via "Site->Web->Settings->
>> {sitename}->Options->Performance Cache.
>>
>> Info about this cache:
>> http://docs.info.apple.com/article.html?artnum=107898
>>
>> And, per our campus Safari license, more detailed information
>> from the O'Reilly book, Essential Mac OS X Server Administration,
>> is excerpted below.
>>
>> At 09:25 -0700 2007-08-29, Dana E Keil wrote:
>>> I would probably use Terminal and the "find" utility. Logged in
>>> as root or using sudo, issue the command "find / -size
>>> +1000000000c -ls" -- that will locate everything on the disk over
>>> a gigabyte or so.
>>
>> Thanks, Dana!
>>
>> Another useful tool for finding large files, which uses some
>> innovative visualization techniques:
>>
>> GrandPerspective
>> http://grandperspectiv.sourceforge.net/
>>
>>> GrandPerspective is a small utility application for Mac OS X that
>>> graphically shows the disk usage within a file system. It can
>>> help you to manage your disk, as you can easily spot which files
>>> and folders take up the most space. It uses a so called tree map
>>> for visualisation. Each file is shown as a rectangle with an area
>>> proportional to the file's size. Files in the same folder appear
>>> together, but their placement is otherwise arbitrary.
>>
>> Aron Roberts
>> Information Services and Technology
>>
>> --
>>
>> From Michael Bartosh and Ryan Faas,
>> Essential Mac OS X Server Administration, O'Reilly, 2005
>> http://www.oreilly.com/catalog/macxserver/
>>
>> 23.3.1. The Performance Cache
>>
>> To most administrators comfortable with Apache, the strangest
>> thing about Apple's implementation is the performance cache. The
>> performance cache is a front-end proxy that's designed to speed
>> access to static HTML files. It does this by caching static
>> content from the web server into RAM, thus making it easier for
>> the server to dish out that content as needed instead of having to
>> call it up from disk.
>>
>> When activated in a site's Option pane in Server Admin, the
>> performance cache server (located in /usr/sbin/webperfcache) runs
>> on port 80 (or the other configured ports for a web server's
>> sites) and is the first responder to requests from clients. If the
>> request can be satisfied from the cache, it returns the content
>> for that request-usually faster than Apache can do so by itself.
>> However, if the content doesn't exist in the cache, the request is
>> sent along to Apache, which is running on a private port (10680 in
>> a default installation).
>>
>> Lower traffic sites or sites that serve quite a bit of dynamic
>> (and therefore uncachable) content won't benefit much from the
>> performance cache. In addition, since using the performance cache
>> moves Apache to a different port than the public HTTP port 80, it
>> can interfere with scripts that expect to use the server port to
>> rewrite URLs.
>>
>> If the performance cache were implemented as an Apache module
>> instead of as a separate process, the configuration problems
>> around ports wouldn't rear their ugly head.
>>
>> For most sites, Apache's performance is more than adequate. Even
>> though the performance cache is enabled by default, you should
>> follow the lead of many experienced Apache administrators and
>> disable it. If you do use the performance cache, you can modify
>> its configuration by editing the /etc/webperfcache/
>> webperfcache.conf file.
>>
>>
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>
> Roy A. Baril
> Director of Technology
> U. C. Berkeley Graduate School of Journalism
> 121 North Gate Hall
> Berkeley, CA. 94720
> (510) 643-9215
>
>
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Received on Wed Aug 29 2007 - 16:08:32 PDT