[syslog-ng] "Error checking uniqueness"

[David Hauck]

Hi András,
 
On Thu, 23 Feb 2017 at 00:22:00, syslog-ng wrote:
> Hi David,
> 
> The issue with persist_name() option was mentioned (and solved) 
> previously in: https://github.com/balabit/syslog-
> ng/issues/1275

Thx, I'd seen that entry prior to my email, however, it wasn't clear to me what exactly this doing. And I wasn't able to find anything in the documentation regarding the persist-name() option. Moreover, I wasn't sure if this would work with my 'destination' specification (as seen below).

What exactly does "persit-name()" do? How exactly do I specifcy this for my destination specifications below? And what has changed between these two versions to now require this option?

Thanks,
-David
 
> Br,
> Andras
> 
> 
> On Thu, Feb 23, 2017 at 1:28 AM, David Hauck <davidh at netacquire.com>
> wrote:
> 
> 
> 	Hi,
> 
> 	I'm in the processing or updating a distribution's v3.6.3 syslog-ng 
> configuration to v3.9.1 and am running into some issues getting 
> syslog-ng started. The first one was:
> 
> 	Starting syslog-ng: Error parsing config, Error compiling template 
> (Unknown template function "format-json") in 
> /usr/share/syslog-ng/include/scl/cim/template.conf at line 23, column 
> 32
> 
> 	I found a reference online to fixing this by removing 
> /usr/share/syslog-ng/include/scl/cim and this indeed got me past this 
> error (hopefully this is an otherwise benign modification).
> 
> 	I'm now stuck at the following error:
> 
> 	Starting syslog-ng: [2017-02-22T08:07:50.101422] Error checking the 
> uniqueness of the persist names, please override it with persist-name 
> option. Shutting down.; 
> persist_name='affile_dd_writers(/var/log/abc/audit_log)',
> location='/etc/syslog-ng.conf:128:33'
> 
> 	Here's snippet from my configuration file that this error message
> references:
> 
> 	...
> 	destination d_abcaudit         { file("/var/log/abc/audit_log"
> template(t_NAFormat));        };
> 	destination d_abcaudit_Prio    { file("/var/log/abc/audit_log"
> template(t_NAFormat_Prio));   };
> 	--> destination d_abcaudit_IPtab   {
> file("/var/log/abc/audit_log" template(t_abcFormat_IPtab));   };
> 	destination d_abcmessage_Prio  { file("/dev/null"); };
> 	...
> 
> 	I wasn't able to find any documentation or guidance on the 
> "persist-name" option. Any ideas on how I should go about fixing this 
> error?
> 
> 	Thanks,
> 	-David
> 
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