I'm currently using Openfire and got about 400 concurrent users every evening. My Problem is: 1gb of Memory and two Xeon cores with 1.8ghz each are not enought for it and I'm pretty sure more power would not really eliminate the problems as it's memory leaking.

My Use case is as follows:

  • Only MUC

  • Users chat via BOSH (using punjab atm.)

  • Flood prevention is a must

  • Message archiving/logging is a must

  • Webinterface for administering would be good

  • External authentication is a must

Now my question is:

  • What is the best jabber server for this use case?

I want one which is actively developed, has a good documentation and a plus would be a webinterface for administering.

I'm currently evaluating ejabberd. But the documentation is really awful. Or is there any good documentation about it somewhere?

Thanks for any help.

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performant is not a word – JamesRyan Aug 11 '11 at 11:23
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thanks for your useful comment. – Michael Weibel Aug 11 '11 at 11:34
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2 Answers

up vote 4 down vote accepted

One word: ejabberd. No web interface though and docs suck at large.

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Can't begin to stress enough how awesome performance wise ejabberd is. (but yes, truly awful docs) – James Butler Aug 11 '11 at 11:43
I switched to ejabberd now. I'm really happy with the performance :) – Michael Weibel Sep 27 '11 at 12:14
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Tigase (www.tigase.org) is very good option. http://www.tigase.org/content/tigase-10mb-ram

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Thanks for your answer. I'll take a look, although I'm currently evaluating ejabberd. Is the documentation there good? – Michael Weibel Aug 16 '11 at 20:14
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