What exactly *IS* the status of 2GB quotas? [WAS Re: ****Re: Odd quota problem]

[Daniel Eckl]

Hi Scott!

You don't need Ken here. You need google. :)

https://bugzilla.andrew.cmu.edu/show_bug.cgi?id=1212
https://bugzilla.andrew.cmu.edu/show_bug.cgi?id=2690

Best,
Daniel

Scott Adkins schrieb:
> --On Saturday, August 05, 2006 6:55 PM +0200 Simon Matter 
> <simon.matter at ch.sauter-bc.com> wrote:
> Okay, I would like to hear specifically from Ken on this one...
> 
> I asked the question myself and go an answer suggesting the limit is not 
> 2GB,
> but 2TB.  I saw a posting from Ken earlier on suggesting something similar.
> 
> In a nutshell, it looks like we can set quotas to any size (even larger 
> than
> 4GB) because the quote limit is defined in Kilobytes and note bytes.  
> However,
> the real problem is the tracking of the actual space used by the user, 
> which
> is done in bytes... so, even though you can set the quota larger, the 2GB
> limit still gets hit because the actual usage counter overflows.  Is 
> this how
> it really is, or am I barking up the wrong tree?
> 
> There also seem to be some third-party patches out there (Simon, etc) that
> implement a "large quota patch", which gets around this problem.  It looks
> like it is actually a 64-bit quota patch, which allows Cyrus to track how
> much disk space is used to greater than 4GB.  Again, am I interpreting this
> correctly?
> 
> So, to wrap up this discussion once and for all:
> 
>  What is the actual quota limitation for Cyrus 2.2 and for Cyrus 2.3?
>        (are they different? did the third party patches make it into
>         the 2.3 versions of Cyrus?)
> 
>  Does the large quota patch require a 64-bit machine/os in order to permit
>    quotas larger than 2GB?
> 
> Thanks,
> Scott
> 
>>> On Fri, 2006-08-04 at 17:34 +0200, Daniel Eckl wrote:
>>>> Perhaps I didn't describe the max quota limit problem good enough:
>>>>
>>>> When your system is affected by this problem and you set a quota 
>>>> greater
>>>> than 2 GB, it results in running mad. In this case it will report over
>>>> quota way before 2GB. Setting quota back to 2GB (or some bytes below),
>>>> the user will be able to use this 2GB w/o problems again.
>>>>
>>>> So your symptoms point exactly to this problem.
>>>>
>>>> In this case, the only way to have more space as 2GB is to remove quota
>>>> like it has been suggested here already.
>>> ----
>>> are there any versions of cyrus 2.2.x that are fixed to allow quota's
>>> over 2Gb or is that fix only available for 2.3.x ?
>>
>> I have large quota patches in my 2.2.12 rpms which seem to work fine.
>>
>> Simon
>> ----
>> Cyrus Home Page: http://asg.web.cmu.edu/cyrus
>> Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
>> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
>>
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> ----
> Cyrus Home Page: http://asg.web.cmu.edu/cyrus
> Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html