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Király István
Asked: 2020-11-12 04:10:42 +0800 CST

Saslauthd - slow response, client timeout

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We use saslauthd 2.1.27 with postfix and rimap authentication. We experience a strange issue after an update: terribly slow response times soon after a restart.

If the saslauthd process is restarted, the response is fast, under one second. Then a few seconds later response is around one second. After one minute several seconds, and after several minutes up to several minutes.

While testsaslauthd always gives a response after a certain time, the mailing client's timeout.

The imap servers respond normally, so it seems to be an issue with saslauthd. Anyone ha sany ideas how to troubleshoot this?

saslauthd

1 Answers

  1. It appears that setting threads to 0 solved the issue.

    -n threads Use threads processes for responding to authentication queries. (default: 5) A value of zero will indicate that saslauthd should fork an individual process for each connection. This can solve leaks that occur in some deployments..

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