Description Florian Best 2014-12-12 12:10:14 CET

For 4.0-0 errata.
+++ This bug was initially created as a clone of Bug #37316 +++

For 3.2-4 errata.
+++ This bug was initially created as a clone of Bug #37159 +++

In case there is a crash with UMC, this problem leads to empty UMC log files:
* logrotate renames the log files → UMC server process still holds the file handle to the moved files
* after a day, logrotate compresses the log file → output into the old file handles is not written anymore to hard disk

In addition to Bug 36473, UMC server would need to handle the corresponding signal emitted by logrotate. 

+++ This bug was initially created as a clone of Bug #36473 +++

logrotate does not trigger the running applications to reopen their logfiles. Thus they are still logging into already deleted files and the log entries are lost.

root@master:~# lsof | grep .log.1
apache2    1445   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2    1629   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2    5946   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2    5947   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2    6637   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
squid3     8153       root    3u      REG              253,0     18665     399352 /var/log/squid3/cache.log.1 (deleted)
squid3     8156      proxy    3u      REG              253,0     18665     399352 /var/log/squid3/cache.log.1 (deleted)
univentio 11056       root    4u      REG              253,0     37070     400458 /var/log/univention/management-console-web-server.log.1 (deleted)
apache2   11104       root    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2   18150   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2   18157   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2   20148   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2   23107   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)
apache2   31323   www-data    3u      REG              253,0      1069     400448 /var/log/univention/management-console-module-lib.log.1 (deleted)