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False positives for hobbit-plugins libs test

list Axel Beckert
Mon, 9 Jul 2018 22:29:12 +0200
Message-Id: <user-e2b63a834f54@xymon.invalid>

Hi Jaap,

On Mon, Jul 09, 2018 at 07:47:33PM +0000, Jaap Winius wrote:
  * Debian stretch with xymon-client 4.3.28-2 and hobbit-plugins 20170219
  * Debian wheezy with xymon-client 4.3.0~beta2.dfsg-9.1+deb7u1 and
    hobbit-plugins 20120532

It all works fine, except that hobbit-plugins often gives false
positives in the 'libs' column, indicating that certain "processes
have libs linked that were upgraded". However, in those cases it
makes no difference whether the processes are restarted, or even if
the machine is rebooted: the processes continue to be flagged
falsely. Examples include libvirt-qemu and mysql. It's the same on
both of the platforms indicated above.
At least the mysql case should be fixed in hobbit-plugins 20180610,
see https://bugs.debian.org/873838. The according changelog item:

  * Whitelist multipath-related /[aio] false positives for mysql/mariadb
    servers in libs check. Thanks to Daniel Rieken for the bug report!
    (Closes: #873838)

Don't know what causes libvirt-qemu case. If the fix for mysql
mentioned doesn't fix it for libvirt-qemu, too, the output of "lsof -p
<pid-of-libvirt-qemu-binary>" might give some hints.

  Kind regards, Axel (one of Debian's hobbit-plugins and xymon maintainers)
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