saslauthd memory leak

Solution Verified - Updated -

Issue

  • We are facing the saslauthd meamory leak issue on a mail server. below are the details

    Apr 15 02:34:41 HOSTNAME saslauthd[14544]: do_auth         : auth failure: [user=960241] [service=imap] [realm=] [mech=pam] [reason=PAM auth error]
    Apr 15 02:35:18 HOSTNAME saslauthd[15503]: do_auth         : auth failure: [user=960241] [service=imap] [realm=] [mech=pam] [reason=PAM auth error]
    


  • saslauthd memory consumption on the server:

      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    13463 open-xch  14  -1 8892m 6.6g 4076 S  8.0 41.9   5156:03 java
     8744 root      15   0 3124m 407m 1728 S  0.0  2.5  42:49.87 saslauthd
     8720 root      15   0 3111m 407m 1740 S  0.0  2.5  44:36.95 saslauthd
     8748 root      15   0 3110m 405m 1728 S  0.0  2.5  43:24.10 saslauthd
     8746 root      15   0 3115m 405m 1728 S  0.0  2.5  43:42.92 saslauthd
     8749 root      15   0 3087m 401m 1728 S  0.0  2.5  43:19.59 saslauthd
    

Environment

  • Red Hat Enterprise Linux 5
  • cyrus-imapd-2.3.7-2.el5 or older

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