** Description changed:
[Impact]
dhcp "lease under threshold" messages aren't handled by logwatch, and
thus end up in the "Unmatched Entries" section, one per event. These
innocuous notices clutters up the logwatch reports unnecessarily.
-
[Test Case]
$ export CODENAME="focal"
$ lxc launch ubuntu:${CODENAME} test-logwatch
$ lxc exec test-logwatch -- bash
# apt-get update
# apt-get dist-upgrade -y
# apt-get install -y logwatch
# wget
https://bugs.launchpad.net/ubuntu/+source/logwatch/+bug/1578001/+attachment/5407062/+files/unmatched-entries-isc-dhcp-server%3Akern.log
# cat unmatched-entries-isc-dhcp-server:kern.log >> /var/log/kern.log
# logwatch --detail High --service all --range all --output stdout
Without the fix, there will be unmatched entries from reuse_lease
regarding lease age thresholds; with the fix there will be no such
messages.
(Note: For testing it's not really necessary to trigger the original
condition that produces the log entry, since for Logwatch the purpose is
more about making sure the entry is detected and processed
appropriately.)
-
[Regression Potential]
Since logwatch filters logs for errors pertinent to administrators,
standard things to watch out for are undesired changes in this filtering
behavior, such as flagging or failing to flag issues differently than
before, other than the specific messages being filtered with this
change.
- [Fix]
-
- [Discussion]
[Original Report]
Under the "dhcpd" heading, the following isc-dhcp-server lines appear as
unknown:
Unknown Entries:
Config file: /etc/dhcp/dhcpd.conf: 1 Time(s)
Database file: /var/lib/dhcp/dhcpd.leases: 1 Time(s)
PID file: /run/dhcp-server/dhcpd.pid: 1 Time(s)
Server starting service.: 1 Time(s)
reuse_lease: lease age 16261 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 16268 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 16391 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 16394 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 1728 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 17474 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 17475 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 26177 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 26179 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 28852 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 28854 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 3064 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 3229 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 35305 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 35325 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 35326 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 49459 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 52188 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
reuse_lease: lease age 811 (secs) under 25% threshold, reply with
unaltered, existing lease: 1 Time(s)
-----------------------------------------------------------------
Description: Ubuntu 16.04 LTS
Release: 16.04
logwatch:
Installed: 7.4.2-1ubuntu1
Candidate: 7.4.2-1ubuntu1
Version table:
*** 7.4.2-1ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
500 http://us.archive.ubuntu.com/ubuntu xenial/main i386 Packages
100 /var/lib/dpkg/status
isc-dhcp-server:
Installed: 4.3.3-5ubuntu12
Candidate: 4.3.3-5ubuntu12
Version table:
*** 4.3.3-5ubuntu12 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
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https://bugs.launchpad.net/bugs/1578001
Title:
unmatched entries for isc-dhcp-server
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