[Building Sakai] Sakai as a large file dropbox

[Dave Ross]

Right - but what version of Sakai?

After 6306, large uploads do not consume memory that way (as long as
they are being written to a filesystem and not to a db)


On 10/8/09, Steve Swinsburg <steve.swinsburg at gmail.com> wrote:
> In out situation, when someone uploaded a file that was rather large
> (but under 2Gb) we ran out of memory. We had a small available heap of
> ~500Mb so limited file uploads to 400Mb. Anything much over that,
> uploads would fail with a memory related stacktrace.
>
> Steve
>
>
>
> On 09/10/2009, at 3:23 AM, Dave Ross wrote:
>
>> To my knowledge, the 2gig limit was a Java datatype issue - not an
>> available heap issue. Files up to 2gig in size have been possible
>> since SAK-6306 and related tickets were resolved (in 2.4.x).
>>
>> -Dave
>>
>> On Thu, Oct 8, 2009 at 4:35 AM, Steve Swinsburg <steve.swinsburg at gmail.com
>>
>> > wrote:
>> We were restricted by the amount of memory available and adding more
>> was proving to be a hurdle so we hadn't gotten around to getting to
>> the 'very large file support' going. But with that squared away, and
>> the new kernel, very large files should be fine (in 2.7).
>>
>> cheers,
>> Steve
>>
>>
>>
>>
>> On 08/10/2009, at 7:05 PM, David Horwitz wrote:
>>
>>> Actually files larger than 2G are only possible with the latest 1.1
>>> range of kernels. This is due to the getContentLength() method in
>>> contenthosting returning an int. Support for file >2G will be
>>> something 2.7 will therefore support
>>>
>>> D
>>>
>>> Steve Swinsburg wrote:
>>>>
>>>> At NCeSS in the UK we have an upload limit of around 400Mb. The
>>>> only limiting factor is the amount of JVM heap. We have people
>>>> wanting to upload files in the order of Gb's which should be doable.
>>>>
>>>> cheers,
>>>> Steve
>>>>
>>>>
>>>>
>>>> On 08/10/2009, at 5:47 AM, Dave Ross wrote:
>>>>
>>>>> Once we moved to 2.5.x, in our instance "You can only upload 1000
>>>>> MB worth of files at one time"
>>>>>
>>>>> We've tested various .iso files and yes it works.
>>>>>
>>>>> File storage is NTFS share in front of a SAN.
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Oct 7, 2009 at 2:24 PM, Michael Wenk <mjwenk at ucdavis.edu>
>>>>> wrote:
>>>>> Branden Visser wrote:
>>>>> > Hi everyone,
>>>>> >
>>>>> > What kind of limits do you put on your file upload sizes? We're
>>>>> running
>>>>> > Oracle 10g, storing our content in the database, and our
>>>>> content field
>>>>> > currently still has LONG RAW data-type.
>>>>> >
>>>>> > Aside from using LONG RAW instead of LOB and disk-space, is there
>>>>> > anything that would keep us from being able to set, say, a
>>>>> 100Mb file
>>>>> > size limit?
>>>>> >
>>>>> > Thanks,
>>>>> > Branden
>>>>> > _______________________________________________
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>>>>> >
>>>>>
>>>>> At UC Davis, we set a file limit of 120 MB.  We use the file
>>>>> system(AFS
>>>>> in our case) to store the data.
>>>>>
>>>>> Mike
>>>>>
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>>>>
>>>>
>>>>
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>>
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>
>

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