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kbase: debuglogs: Add a note about auto-shutdown of daemons

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When using runtime setting of logging with 'virt-admin' it can be
confusing that the settings are discarded when the shutdown timeout of a
daemon is reached.

Add a note about this behaviour along with a suggestion to use
virt-admin to disable the behaviour if needed.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Peter Krempa 2022-06-13 15:48:51 +02:00
parent fe69f5074a
commit c37ebda93a
1 changed files with 20 additions and 0 deletions
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docs/kbase/debuglogs.rst
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@ -194,6 +194,26 @@ package manager provided by your distribution to install this package.
guideline in the sections above in place of ``virt-admin`` in the examples
below if needed.
Timeout of the configured daemon
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Common deployments of libvirt start the libvirt daemons via socket activation
and with automatic shutdown timeout of 120 seconds when no client or object is
handled by the daemon. When a timeout is reached the daemon stops and all
settings done during runtime via ``virt-admin`` are discarded. The daemon then
is re-started with another command.
To prevent auto-shutdown of the daemon you can use the following command::
virt-admin daemon-timeout 0
The above is introduced in libvirt-8.6.0.
Adding filters and outputs
~~~~~~~~~~~~~~~~~~~~~~~~~~
The following command allows to query the list of currently active log filters:
::