TIMING [total 3516 ms] - SA check: 3480 (99%)100

[Patrick Ben Koetter]

* Django [BOfH] <django at nausch.org>:
> I've a very bad performace on one of my MX. MAils a scanned most while 3
> - 5 seconds. :(
> 
> 
> The system is:
> 
> CentOS 7
> spamassassin-3.4.0-2.el7.x86_64
> amavisd-new-2.11.0-1.el7.noarch
> amavisd-milter-1.6.1-6.el7.centos.x86_64
> clamav-0.99.3-1.el7.x86_64
> 
> No database, all datas in filespace!
> 
> Here's an example mail delivery on this system's maillog:
> 
> Feb  2 21:57:59 mailbitch1 amavis[17306]: (17306-04) TIMING-SA total
> 3482 ms - parse: 0.88 (0.0%), extract_message_metadata: 1.71 (0.0%),
> get_uri_detail_list: 0.09 (0.0%), tests_pri_-1000: 4.6 (0.1%),
> tests_pri_-950: 0.61 (0.0%), tests_pri_-900: 0.61 (0.0%),
> tests_pri_-400: 0.47 (0.0%), tests_pri_0: 971 (27.9%), check_dkim_adsp:
> 2.9 (0.1%), check_spf: 3.8 (0.1%), poll_dns_idle: 2486 (71.4%),

Quoting from
https://mail-archives.apache.org/mod_mbox/spamassassin-users/201010.mbox/%3C201010251453.15011.Mark.Martinec+sa@ijs.si%3E:

    The poll_dns_idle is just a state where SpamAssassin is waiting for
    DNS replies to come in or a timeout to expire. Apparently at least
    some (if not all) of your DNS queries are not being answered.
    Typically these are RBS or URIDNSBL tests, so perhaps one of the
    queried black/white-lists is down, or some perhaps there is a
    DNS resolver problem at your site.

    The 14+ (15) seconds timeout comes from your 'rbl_timeout' setting.
    You may decrease this value, perhaps down to 6 seconds, if your
    DNS resolving is otherwise reasonably fast.

    Nevertheless, you should investigate which DNS query is stalled
    by adding a '--debug=async' debug area to you spamd or spamassassin,
    e.g.:

      $ spamassassin -D timing,async -t <test.msg

p at rick


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