connect() returns EADDRINUSE during massive host->host conn rate

Ivan Voras ivoras at
Wed Nov 28 12:06:34 PST 2007

Daniel Eischen wrote:
> On Wed, 28 Nov 2007, Ivan Voras wrote:

>> This looks like the old (and probably well known) problem "ab" has.
>> ("ab" is "apache benchmark", a utility which is bundled with apache and
>> which does repeated connections to the specified address, does
>> transactions and computes some statistics). AFAIK this behaviour was
>> present since at least 5.2, maybe earlier. No known fixes.
> Could it have anything to do with the listen backlog on the
> server end?

No, since the same utility used from Linux (not the same binary...)
works as it should.

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