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3.6

Server (swap) issue.

Asked by kgp43 in Miscellaneous Networking

Hi,

I run a file hosting service which handle around 300,000 downloads per day.
Average filesize: 10MB (max 60MB).

The service use the following servers:

1 main server (site): Dual xeon 2.4, 2GB RAM, 2x250GB SATA2 drives.
1 DB server: Dual xeon 2.4, 2GB RAM, SCSI drives, .
5 fileservers: Dual xeon 2.4, 2GB RAM, 2x250GB SATA2.
1 fileserver: Dual xeon 2.4, 2GB RAM, 3 x 250GB SATA2, RAID5.
1 fileserver: Dual xeon 3.0, 4GB RAM, 5 x 250GB SATA2, RAID0.

- The problem is that ALL fileservers crash (swapping increase like !@#$ and load jump to 300) when I enable uploading, but run okay with uploading disabled - count all fileservers. All servers use SATA2 drives and have 1gbit lan connection and is placed in the same cabinet.

Using apache/php on all fileservers, but they run okay (load below 1) when uploading is disabled, so I think that part is okay.

Files is being uploaded directly to the fileservers by the user (upload form), but have been thinking about adding a seperate "upload server" which will handle the upoads and SSH them to the fileservers afterwards.

Any idea what i'm doing wrong?

(have been dealing with this problem for several months now and got two server management companies to look into it, but they cant tell me the reason for the errors).

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20091021-EE-VQP-81

Server (swap) issue.

Asked by kgp43 in Miscellaneous Networking

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