On Tue, Jul 02, 2019 at 20:24:09 +0200, Jan Zerebecki wrote: > With logrotates copytruncate when e.g. domain1 doesn't exist anymore > /var/log/libvirt/qemu/domain1.log will still exist after rotation even > though it will never be written to. When new domain names keep getting > used this leads to a lot of empty logfiles. This may lead to slowdown or > lack of free disk space / inodes. > > Fix this by replacing copytruncate with the apropriate postrotate > command to reopen log files. Thus after the apropriate time log files > for deleted domains will be gone. This also has the advantage that the > chance for loss of a few lines during copytruncate is gone. > > Signed-off-by: Jan Zerebecki <[email protected]> > --- > src/remote/libvirtd.libxl.logrotate.in | 4 +++- > src/remote/libvirtd.logrotate.in | 4 +++- > src/remote/libvirtd.lxc.logrotate.in | 4 +++- > src/remote/libvirtd.qemu.logrotate.in | 4 +++- > 4 files changed, 12 insertions(+), 4 deletions(-)
I'm not sure that this is the right thing to do. virtlogd has some internal log rotation mechanisms and also the SIGUSR1 action is reserved for re-exec updates and not for dealing with modified files Additionally the internals are supposed to keep all the FD's open during re-exec so I'm not even sure that this will help.
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