[syslog-ng] db-parser reuse for multiple logs?

Evan Rempel erempel at uvic.ca
Wed Apr 8 17:38:04 CEST 2015


I don't have an answer to your actual question, however, you can work around it by

log {
         source(src_udp);
         parser(myparser);
         log {
                 filter(filter_host1);
                 destination(dst_host1);
                 flags(final);
         };
         log {
                 filter(filter_host2);
                 destination(dst_host2);
                 flags(final);
         };
};

Hope that helps.

Evan.

On 04/08/2015 04:31 AM, Mikkel Leth Carlsen wrote:
> Hi
>
> Are db-parsers defined in syslog-ng configurations not reusable for multiple logs?  A simplified example (syslog 3.6.2):
>
> parser myparser {
>          db_parser(
>                  file("/usr/local/etc/patterndb.d/myparser.xml")
>          );
> };
>
> template mytemplate {
>           template("${A};${B};${C}\n");
> }
>
> filter filter_host1 {
>          netmask(10.0.0.1/255.255.255.255);
> };
>
> filter filter_host2 {
>          netmask(10.0.0.2/255.255.255.255);
> };
>
> destination dst_host1 {
>          file("host1.log" perm(0644) template(mytemplate));
> };
>
>
> destination dst_host2 {
>          file("host2.log" perm(0644) template(mytemplate));
> };
>
> log {
>          source(src_udp);
>          filter(filter_host1);
>          parser(myparser);
>          destination(dst_host1);
>          flags(final);
> };
>
> log {
>          source(src_udp);
>          filter(filter_host2);
>          parser(myparser);
>          destination(dst_host2);
>          flags(final);
> };
>
> This seems to work as expected and 'syslog-ng -s' does not report any problems, but I see the following in the syslog-ng internal log:
>
> Internal error, duplicate configuration elements refer to the same persistent config; name='db-parser(/usr/local/etc/patterndb.d/myparser.xml)'
> Internal error, duplicate configuration elements refer to the same persistent config; name='db-parser(/usr/local/etc/patterndb.d/myparser.xml)'
>
> /Mikkel
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