do you :<br><br>reject invalid recipients on the incoming postfix<br clear="all"><br>only run a few RBL's in Spamassassin?<br><br>run a local caching nameserver?<br><br>looked at the tuning/performance stuff in the wiki for clues?<br>
<br>-- <br>Martin Hepworth<br>Oxford, UK<br>
<br><br><div class="gmail_quote">On 11 November 2010 12:19, Zaeem Arshad <span dir="ltr"><<a href="mailto:zaeem.arshad@gmail.com">zaeem.arshad@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi List,<br>
<br>
For the past couple of days, my normally fine MailScanner system<br>
started showing signs of sluggishness. At one time, the queue climbed<br>
up to 90,000. We did not observe any sort of spam or other attack<br>
during that period. Since that fateful day, I have tried upgrading the<br>
version from 4.77 to 4.81 but no effect. While I am still trying to<br>
understand why the system is working slow, I have observed that the<br>
queue has more than a 1000 messages but MailScanner processes are<br>
picking up a random number instead of the configured 50 messages. A<br>
log of the processes is available at <a href="http://pastebin.com/hgBu66HL" target="_blank">http://pastebin.com/hgBu66HL</a>. .<br>
For now, I have bypassed MailScanner as the queue buildup is too much<br>
to handle. The incoming workdir is on tmpfs and I haven't seen any<br>
disk or IO issues. Here is the output of MailScanner -version.<br>
<br>
<br>
MailScanner -version<br>
Running on<br>
Linux <a href="http://antivirus5.cyber.net.pk" target="_blank">antivirus5.cyber.net.pk</a> 2.6.18-128.el5 #1 SMP Wed Jan 21<br>
10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux<br>
This is CentOS release 5.3 (Final)<br>
This is Perl version 5.008008 (5.8.8)<br>
<br>
This is MailScanner version 4.81.4<br>
Module versions are:<br>
1.00 AnyDBM_File<br>
1.30 Archive::Zip<br>
0.23 bignum<br>
1.04 Carp<br>
1.41 Compress::Zlib<br>
1.119 Convert::BinHex<br>
0.17 Convert::TNEF<br>
2.121_08 Data::Dumper<br>
2.27 Date::Parse<br>
1.00 DirHandle<br>
1.05 Fcntl<br>
2.74 File::Basename<br>
2.09 File::Copy<br>
2.01 FileHandle<br>
1.08 File::Path<br>
0.20 File::Temp<br>
0.90 Filesys::Df<br>
3.64 HTML::Entities<br>
3.64 HTML::Parser<br>
3.57 HTML::TokeParser<br>
1.23 IO<br>
1.14 IO::File<br>
1.13 IO::Pipe<br>
2.04 Mail::Header<br>
1.89 Math::BigInt<br>
0.22 Math::BigRat<br>
3.07 MIME::Base64<br>
5.427 MIME::Decoder<br>
5.427 MIME::Decoder::UU<br>
5.427 MIME::Head<br>
5.427 MIME::Parser<br>
3.07 MIME::QuotedPrint<br>
5.427 MIME::Tools<br>
0.13 Net::CIDR<br>
1.25 Net::IP<br>
0.16 OLE::Storage_Lite<br>
1.04 Pod::Escapes<br>
3.05 Pod::Simple<br>
1.09 POSIX<br>
1.19 Scalar::Util<br>
1.78 Socket<br>
2.16 Storable<br>
1.4 Sys::Hostname::Long<br>
0.27 Sys::Syslog<br>
1.26 Test::Pod<br>
0.86 Test::Simple<br>
1.9707 Time::HiRes<br>
1.02 Time::localtime<br>
<br>
Optional module versions are:<br>
1.30 Archive::Tar<br>
0.23 bignum<br>
1.82 Business::ISBN<br>
1.10 Business::ISBN::Data<br>
1.08 Data::Dump<br>
1.814 DB_File<br>
1.25 DBD::SQLite<br>
1.607 DBI<br>
1.15 Digest<br>
1.01 Digest::HMAC<br>
2.36 Digest::MD5<br>
2.11 Digest::SHA1<br>
1.00 Encode::Detect<br>
0.17008 Error<br>
0.18 ExtUtils::CBuilder<br>
2.18 ExtUtils::ParseXS<br>
2.38 Getopt::Long<br>
0.44 Inline<br>
1.08 IO::String<br>
1.04 IO::Zlib<br>
2.21 IP::Country<br>
missing Mail::ClamAV<br>
3.002005 Mail::SpamAssassin<br>
v2.004 Mail::SPF<br>
1.999001 Mail::SPF::Query<br>
0.2808 Module::Build<br>
0.20 Net::CIDR::Lite<br>
0.66 Net::DNS<br>
0.002.2 Net::DNS::Resolver::Programmable<br>
missing Net::LDAP<br>
4.004 NetAddr::IP<br>
1.94 Parse::RecDescent<br>
missing SAVI<br>
2.64 Test::Harness<br>
0.95 Test::Manifest<br>
1.98 Text::Balanced<br>
1.35 URI<br>
0.7203 version<br>
0.62 YAML<br>
<br>
<br>
<br>
Regards<br>
<br>
Zaeem<br>
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</font></blockquote></div><br>