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RE: Question about limiting rate of conserver output

ronaldo.mercado ronaldo.mercado@diamond.ac.uk
Fri, 16 Jan 2015 09:15:09 GMT

Hi John, 

Thanks for replying.

> So are you wanting to discard output and just write every third line or
> something?  Just slowing down the output isn't going to address the
> problem here, which is too small space for logs.

The underlying problem is the service writing out too many errors. I am the guy in charge of fixing it. 
A sustained message storm broke past a few protection mechanisms of log rotating and disk space monitoring over several days finally caused problems in other systems. 
Limiting the rate could offer additional protection.

> How about using the 'logfilemax' parameter from conserver.cf (see the man
> page) and then have a cronjob which copies old log files over the network
> to another system with more disk space.

Effectively I want "logfilemax" that throws away messages in case of a sustained message storm. 
I prefer throwing away messages because they tend to be repeated anyway. The system will be fixed eventually and the service restarted. 
Logging can continue from where it left off.

There is a cronjob rotating log files at midnight already. I did not realise there are similar facilities in conserver.


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