[syslog-ng]SIGXXX logrotate patch suggestion.

[Ted_Rule@flextech.co.uk]

This is allied to my previous request a few weeks ago that syslog-ng
doesn't close and re-open listener sockets across a SIGHUP/reconfigure - all in
a desire
to drop as few messages as possible across the overnight log rotation.

How's about another variation on the same theme, namely to provide a separate
signal
for rotating logs, in a similar manner to Squid which has separate signals for
daemon reconfiguration
and log rotation.

The action of the new signal would merely be to close all existing output
descriptors, and re-open them
with the same parameters.

This would allow overnight logrotate commands to rename logs before SIGXXX'ing
syslog-ng and thus
achieve log rotation without requiring listener's are closed/re-opened across
the logrotate.

Whether or not this is particulary easy given the current layout of the output
file objects, I'm afraid I don't know,
but it feels to me as though this might be easier to code than the reworking of
SIGHUP to preserve listeners across
a reconfigure.


Any takers?


Ted




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