[syslog-ng] Issue about using perl script in Receiving messages from external applications

[Jian Zhu]

Right. Thanks :)

On Fri, Aug 10, 2012 at 4:31 PM, Pal Tamas <folti at balabit.hu> wrote:

> Hi,
>
> IMO you should put the 2 lines before the while() block. You only have
> to set it once.
>
> On Fri, Aug 10, 2012 at 09:02:26AM +0800, Jian Zhu wrote:
> > Thanks you Evan for you quick response. I changed my script as below and
> now
> > it's working fine.
> >
> > #!/usr/bin/perl
> >
> > $i=0;
> > while(true){
> >         $i++;
> >         #added below 2 lines to force a flush right away and after every
> print
> >         #according to perl document: "STDOUT will typically be line
> buffered if
> > output is to the terminal and block buffered otherwise."
> >         #since the output is not to terminal so here it's block
> buffered, i
> > guess this is the root cause.
> >         select(STDOUT);
> >         $| = 1;
> >
> >         print STDOUT "hello $i\n";
> >
> >         sleep 1;
> >
> > }
> >
> >
> >
> >
> >
> > On Fri, Aug 10, 2012 at 8:52 AM, Evan Rempel <erempel at uvic.ca> wrote:
> >
> >     You are probably suffering from perl's buffering. I forget the exact
> syntax right now but a quick google of disabling Perl auto flush should
> give you what you need.
> >
> >     Jian Zhu <zhujian0805 at gmail.com> wrote:
> >
> >
> >     Hello,
> >
> >     Could anyone please help me on this below issue?
> >
> >     my syslog-ng.conf file look like below:
> >
> >     The test.sh script work fine, I can see it's output in the
> test.sh.log
> >     file.
> >     But the test.pl doesn't work. the test.sh and test.pl have the same
> >     function of printing something to STDOUT.
> >     ------------------------------
> >
> -------------------------------------------------------------------------------------------------------------------
> >     @version: 3.0
> >     #Default configuration file for syslog-ng.
> >     #
> >     # For a description of syslog-ng configuration file directives,
> please read
> >     # the syslog-ng Administrator s guide at:
> >     #
> >     # http://www.balabit.com/dl/html/syslog-ng-admin-guide_en.html/
> >     bk01-toc.html
> >     #
> >     options {
> >     # Number of syslog lines stored in memory before being written to
> files
> >     flush_lines (0);
> >     log_fifo_size (2048);
> >     create_dirs (yes);
> >     perm (0640);
> >     dir_perm (0750);
> >     };
> >
> >
> >
> >     source ppp { program("/root/perl/test.pl"); };
> >     destination ppp {
> >     file ("/var/log/syslog-ng/$HOST/perl.pl.log" create_dirs(yes));
> >     };
> >     log {
> >             source(ppp);
> >             destination(ppp);
> >     };
> >
> >     source sss { program("/root/shell/test.sh"); };
> >     destination sss {
> >     file ("/var/log/syslog-ng/$HOST/test.sh.log" create_dirs(yes));
> >     };
> >     log {
> >             source(sss);
> >             destination(sss);
> >     };
> >
> -------------------------------------------------------------------------------------------------------------------------------------------------
> >
> >
> >     --
> >
> >     Thanks & Best Regards
> >
> >     James Zhu
> >
> >     Mobile: +86 186 8482 2818
> >
> >     Email: zhujian0805 at gmail.com
> >
> >
> >
> >
> ______________________________________________________________________________
> >     Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
> >     Documentation:
> http://www.balabit.com/support/documentation/?product=
> >     syslog-ng
> >     FAQ: http://www.balabit.com/wiki/syslog-ng-faq
> >
> >
> >
> >
> >
> >
> > --
> >
> > Thanks & Best Regards
> >
> > James Zhu
> >
> > Mobile: +86 186 8482 2818
> >
> > Email: zhujian0805 at gmail.com
> >
> >
>
> >
> ______________________________________________________________________________
> > Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
> > Documentation:
> http://www.balabit.com/support/documentation/?product=syslog-ng
> > FAQ: http://www.balabit.com/wiki/syslog-ng-faq
> >
>
>
> --
> Pal Tamas/Folti
> folti at balabit.hu
>
>
> ______________________________________________________________________________
> Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
> Documentation:
> http://www.balabit.com/support/documentation/?product=syslog-ng
> FAQ: http://www.balabit.com/wiki/syslog-ng-faq
>
>


-- 

*Thanks & Best Regards*

*James Zhu*

*Mobile**:* *+86 18**6 8482 2818*

*Email: *zhujian0805 at gmail.com
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