Re: [RFC] Adding timestamp to guest's serial console log
On Tue, Aug 29, 2023 at 07:04:22AM +0000, Shaleen Bathla wrote:
ping
-----Original Message-----
From: Shaleen Bathla <shaleen.bathla(a)oracle.com>
Sent: Tuesday, June 20, 2023 2:44 PM
To: libvir-list(a)redhat.com
Subject: [RFC] Adding timestamp to guest's serial console log
Hi,
Need some comments regarding the following feature :
Addition of timestamp support for serial console logs of a guest.
We can implement it as a configurable attribute in xml.
For example :
<serial type='pty'>
<log file='$PATH/$GUESTNAME-serial0.log' append='on'
timestamp="on/off"/>
<target type='isa-serial' port='0'>
<model name='isa-serial'/>
</target>
</serial>
We can add a timestamp after every '\n' character received from qemu.
Can I have some comments regarding this change like what I should keep
in mind while implementing, whether it is a welcome addition or not,
issues I might face, any qemu changes required.
QEMU does not have ability to add timestamps currently.
If it was to be added by libvirt, it will need logic added to virtlogd
and would obviously be unavailable in any deployment that disables
virtlogd. We recommend using virtlogd to prevent guest denial of service
by consuming all disk space, so not a big problem.
With regards,
Daniel
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