Description of problem:
The installed script for logrotate (/etc/logrotate.d/httpd)uses SIGHUP to get
httpd to reopen log files. This is unncessarily harsh, and kills child process
which might have active tasks running, and SIGUSR1 should be used instead.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.make client http connection ... some long running database access, for example
3.kill -HUP `cat /var/run/httpd.pid`
4.check for active client connection
SIGHUP kills client connections and creates new error_log
Only new log should be created
In above steps if SIGUSR1 is used then only log file is created and client
connection remain unterminated. Deliberately killing client connections when
creating new log files is not a good idea.
Yes, thanks for the report.
Graceful restarts are not ideal when using piped loggers unfortunately so there
is a tricky trade-off here. With piped loggers you will lose all log messages
after the SIGUSR1; I wanted to get this fixed before switching the default.
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*** Bug 436724 has been marked as a duplicate of this bug. ***
*** Bug 555981 has been marked as a duplicate of this bug. ***
Another difference between HUP and USR1 is that USR1 starts the httpd if it was not running, HUP does not. I noticed this recently when I turned off an old webserver where I had changed the logrotate script to do a graceful and next day apache was running again.
You mean 'apachectl graceful' restarts httpd. A signal cannot restart anything.
In any case:
/sbin/service httpd status >/dev/null && /usr/sbin/apachectl graceful || true
is all that is required to prevent a restart.
(In reply to comment #7)
> You mean 'apachectl graceful' restarts httpd.
Yes, of course.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
as mentioned by Joe Orton, this bug is fixed in RHEL7, since systemd's reload is executing "httpd -k graceful".
This should be fixed for some time already in all supported Fedora versions.