[Linux-HA] question on heartbeat logging

Todd Denniston Todd.Denniston at ssa.crane.navy.mil
Thu Feb 23 04:14:43 MST 2006

Werner Fischer wrote:
> you are right - I missed the "without restarting heartbeat" in the
> original question. sorry for my confusion.

Actually, your (Werner Fischer) original answer was correct.
logrotate deals with the ha-log just fine, at least on my Fedora Core 1 
systems, i.e., as FC1 comes configured to rotate all the logs in /var/log, so 
  if I:
cd /var/log/
ls -ltrh ha-log*
#I get:
-rw-r--r--  1 root root  56K Nov 18 21:39 ha-log.3
-rw-r--r--  1 root root    0 Dec  1 04:02 ha-log.2
-rw-r--r--  1 root root  42K Jan 31 22:10 ha-log.1
-rw-r--r--  1 root root 302K Feb 22 18:16 ha-log

been a bad month :}

> On Wed, 2006-02-22 at 10:44 -0600, Dave Blaschke wrote:
>>Sweet, Larry D wrote:
>>>Hello, all,
>>>The log /var/log/ha-log is getting quite large, over 400 meg.  can I 
>>>delete it, I believe it will recreate itself without restarting heartbeat?
>>>How do I control the size?
>>Well, you can certainly "truncate" the log file via "echo > 
>>/var/log/ha-log" while heartbeat is running and heartbeat will continue 
>>to log to the file without having to be restarted.  Deleting the file 
>>while it is not used by ANY process is okay too.  However, deleting the 
>>file while it is in use (opened by heartbeat) will result in the file 
>>being marked as deleted even though heartbeat continues to log to it - 
>>of course when the file IS no longer in use, it is deleted so that any 
>>logging which occurred between the rm and the file's final close will be 

Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter

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