Salvatore,

> Hi, I use amavisd-new-2.2.1 with Maia/MySQL Server/Postfix/Clamv and
> sometimes I have this error:

> A00301A195  1037884 Tue Jun 30 16:19:29  acco...@domain.com
> (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 Error in processing, id=22278-02,
> spam_scan FAILED: DBD::mysql::st execute failed: Got a packet bigger than
> 'max_allowed_packet' bytes at /usr/sbin/amavisd line 3790, <GEN10> line
> 36191. (in reply to end of DATA command))

> This error is caused from amavis or not ? How can I resolve this problem ?
> Thanks.

maybe you should increase the value for max_allowed_packet in your
mysql configuration (my.cnf). Sometimes this value is a bit low; I
mean that standard value is 1 MB.

You can check this setting in phpmyadmin or manually at the mysql
command prompt like

mysql> SHOW VARIABLES;

Look for max_allowed_packet. If the value is low you can increase the
value in my.cnf. Example:

[mysqld]
max_allowed_packet=8M

Further informations:
http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
http://dev.mysql.com/doc/refman/5.0/en/show-variables.html


-- 
Daniel



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