Geneva,
since you don't have a lot of items, this cannot be related to the browse
index problems in version 1.4.2 and earlier. It's the first time I'm seeing
such an issue (about number of bitstreams) since I'm following the DSpace
community so I'm very curious about the reason.
Can you tell us about the average number of bitstreams each items possess?
What's the highest number of bitstreams for one item?
Are the items, possessing a lot of bitstreams, frequently accessed by users?
In which cases does you experience sluggish responses? When you access an item?
When you're doing a search? When you're opening a bitstream?
Can you know approximately what's the average number of concurrent users that
are accessing your DSpace instance?
What do you mean by "platform going down"? The machine or Tomcat only? Do you
restart only Tomcat to resolve that issue or do you have to restart the server
entirely?
Are the bitstreams registered or not? Do they resides in the default assetstore
or in another server (SAN, SRB)? If they resides in the same server, what's the
capacity of its drive (space and number of inodes for directories, in case of a
Unix/Linux system)?
Thanks for your responses, this can help.
________________________________
De: [EMAIL PROTECTED] de la part de Geneva Henry
Date: mer. 2008-02-06 10:01
À: Richard Rodgers
Cc: dspace-tech@lists.sourceforge.net
Objet : Re: [Dspace-tech] DSpace stability with large number of bitstreams
Sluggish response and the platform goes down rather frequently. We have
a test server and development server running, with the test server
configured the same as the production server except for the content
load. The test environment works just fine so that's why we're thinking
it's the number of bitstreams.
regards,
geneva
^~^
(o o)
/`v`\ who?
|'''|
|\'/|
"""
Geneva Henry
Executive Director, Digital Library Initiative
Rice University
Fondren Library -- MS-44
P.O. Box 1892
Houston, TX 77251-1892
(overnight delivery address: 6100 Main St., Houston, TX 77005)
voice:(713)348-2480 | [EMAIL PROTECTED]
Richard Rodgers wrote:
> Hi geneva:
>
> Can you characterize the stability problems a bit more? Errors or
> sluggish responses, etc
>
> Thanks,
>
> Richard
>
> Quoting Geneva Henry <[EMAIL PROTECTED]>:
>
>
>> On our production DSpace server we're managing around 12,243 items, but
>> around 430,000 bitstreams. We've seen a lot of issues with the server's
>> stability and are wondering if it's related to this large number of
>> bitstreams being managed. Has anyone else experienced stability problems
>> as the number of bitstreams has scaled up significantly?
>>
>> --
>> regards,
>> geneva
>>
>> ^~^
>> (o o)
>> /`v`\ who?
>> |'''|
>> |\'/|
>> """
>> Geneva Henry
>> Executive Director, Digital Library Initiative
>> Rice University
>> Fondren Library -- MS-44
>> P.O. Box 1892
>> Houston, TX 77251-1892
>> (overnight delivery address: 6100 Main St., Houston, TX 77005)
>> voice:(713)348-2480 | [EMAIL PROTECTED]
>>
>>
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>
>
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