Re: [PATCH] Re: Kannel HTTP MO delivery failing under load
Stipe Tolj <[email protected]>
| Newsgroups | gmane.comp.mobile.kannel.devel |
|---|---|
| Organization | tolj.org system architecture |
| Message-ID | <[email protected]> |
Giulio Harding wrote:
> Sorry I didn't reply sooner - I was away sick last week, and I'm only
> just getting back into things at work...
>
> I've just tested Alex's patch, and first impressions are good - I've
> set max-pending-requests to 400, and I can swamp Kannel on our test
> server (~500 MOs/sec and ~180 MTs/sec) with no errors at all! I'm going
> to do some more tests with different values of max-pending- requests, to
> see how that affects performance, and try on some newer, faster
> hardware as well, but at this point, I'm satisfied the patch has
> resolved our issue.
Ok, thanks a lot for the tests.
> Thanks Alex!
>
> My only suggestion is to change the default value for max-pending-
> requests to a value below 1024, simply because the default max open
> files for a Linux process (at least in RHEL and Fedora Core) is 1024 -
> and smsbox already uses up some file descriptors for other stuff,
> further limiting the number of concurrent HTTP connections. With max-
> pending-requests set to 1024, we encounter the original 'too many open
> files' problem. Not sure what the best value would be, but without a
> better idea, I'd suggest a default like 512 or something?
yep, agree'ing here. Since it's configurable we don't hurt to be more
restrictive in the default case.
> Stipe, I assume you still want me to write up a detailed bug report to
> keep a record of this?
yep :)
Stipe
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