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Message #77463
[Bug 1818335] Re: Fullstack test test_dscp_marking_packets fails
Reviewed: https://review.openstack.org/642186
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=8c2a16796bb8a17c311ff6b34435283650976f48
Submitter: Zuul
Branch: master
commit 8c2a16796bb8a17c311ff6b34435283650976f48
Author: Slawek Kaplonski <skaplons@xxxxxxxxxx>
Date: Sat Mar 9 01:07:03 2019 +0100
Fix fullstack test_dscp_marking_packets test
Fullstack test test_dscp_marking_packets spawns tcpdump
process inside one fake vm's namespace and then tries to
ping this instance from second one.
After that it checks if tcdump captured any packet marked with
specific DSCP mark.
Ping was done usually only once (1 packet) because
it was done by using vm.wait_until_ping() method, so it could
happen sometimes that ping was send before tcpdump actually
started captuting traffic.
In such case test failed because there was no any packet captured.
This patch changes this by:
1. Start tcpdump async process with block=True, so it should be
already really started before test will go to the next steps,
2. Send always 10 packets instead of (usually) only one.
In addition this patch adds logging of captured tcpdump's stdout
and stderr streams. It may help debugging issues with this test in
the future.
Change-Id: I23bbde59af0250267843623dde2c5407059d9db2
Closes-Bug: #1818335
** Changed in: neutron
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1818335
Title:
Fullstack test test_dscp_marking_packets fails
Status in neutron:
Fix Released
Bug description:
Fullstack test test_dscp_marking_packets from fullstack module
neutron.tests.fullstack.test_qos failed at least 3 times in last few
days. It failed for both Linuxbridge and OVS agent so it doesn't looks
like L2 backend specified.
Example of failure: http://logs.openstack.org/35/638635/2/check
/neutron-fullstack/675a247/logs/testr_results.html.gz
Logstash query:
http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%20%5C%22line%20497%2C%20in%20test_dscp_marking_packets%5C%22
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References