On 25.10.2011 07:17, [email protected] wrote:
> On Mon, 24 Oct 2011, Andreas Piesk wrote:
>>
>> the bad news: the message order changes when the backlog is transferred to 
>> the logserver.
> 
> the order of syslog messages is not maintained. Even in the simplest, most 
> generic case it is
> possible for the network packets to pass one another between the source and 
> the destination.
> 
> rsyslog used to put a lot more effort into maintaining the order of the logs, 
> but it turns out that
> this effort was slowing things down significantly, and still couldn't provide 
> the guarantee that it
> was assuming was needed.
> 
> As a result of that discussion, many new features have been implemented in 
> rsyslog that have
> provided very significant speedups, but they also provide more ways that the 
> logs can get out of order.
> 

thank you for the info.

I'm right assuming that using a disk queue would preserve the order (the 
possibility of packets
passing each other on network ignored) because all messages have to go though 
the queue? i know,
disk queues are not great for performance but speed is not so important for me.
the test with a disk queue is still on my list, but maybe someone can share 
first-hand experience.

regards,
-ap
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