[Openstack] Masakari on queens

Torin Woltjer torin.woltjer at granddial.com
Tue Jun 19 19:04:32 UTC 2018

Thank for the reply. Tushar Patil.

The command:
$timeout 5 tcpdump -n -c 1 -p -I vlan60 port 5405
"tcpdump: enp2s0f0: That device doesn't support monitor mode"

The command:
(lowercase i)
$timeout 5 tcpdump -n -c 1 -p -i vlan60 port 5405
Runs fine with no errors:
"tcpdump: listening on vlan60, link-type EN10MB (Ethernet), capture size 262144 bytes"

The in use interfaces on all of my nodes are as follows:


>From this part of handle_host.py I can't tell what is causing the command to raise exception.

From: "Patil, Tushar" <Tushar.Patil at nttdata.com>
Sent: 6/18/18 9:10 PM
To: "openstack at lists.openstack.org" <openstack at lists.openstack.org>, "torin.woltjer at granddial.com" <torin.woltjer at granddial.com>
Subject: Re: Masakari on queens
Hi Torin,

Looking at the code, it seems it is trying to run below command as root user.

timeout tcpdump -n -c 1 -p -I port

tcpdump_timeout -> CONF.host.tcpdump_timeout -> default value is 5 seconds
multicast_interface -> corosync_multicast_interface -> vlan60
multicast_ports-> corosync_multicast_ports -> 5405

Unfortunately, the error message is suppressed [1] hence it's difficult to know the exact reason.
Can you please run below command on the host where you are running masakari-hostmonitor service? The error you would get after running this command would give you some hint to troubleshoot this issue further.

$timeout 5 tcpdump -n -c 1 -p -I vlan60 port 5405

[1] : https://github.com/openstack/masakari-monitors/blob/cde057bc685b7bbc35f5c425f9690b01766654b2/masakarimonitors/hostmonitor/host_handler/handle_host.py#L121

Tushar Patil

From: Torin Woltjer
Sent: Tuesday, June 19, 2018 4:01:29 AM
To: Patil, Tushar; openstack at lists.openstack.org
Subject: Masakari on queens

Hello Tushar Patil,

I have upgraded to Openstack Queens and am trying to run Masakari version 4.0.0 . I'm curious what additional configuration is required to get this set up correctly.


masakari-hostmonitor is giving me errors like:
2018-06-18 12:44:44.812 18236 ERROR masakarimonitors.hostmonitor.host_handler.handle_host [-] Corosync communication is failed.: ProcessExecutionError: Unexpected error while running command.
2018-06-18 12:45:14.895 18236 INFO masakarimonitors.hostmonitor.host_handler.handle_host [-] 'UBNTU-OSTACK-COMPUTE2' is 'online'.
2018-06-18 12:46:20.047 18236 WARNING masakarimonitors.hostmonitor.host_handler.handle_host [-] Corosync communication using 'vlan60' is failed.: ProcessExecutionError: Unexpected error while running command.

Do you have any knowledge on this?
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