<div dir="ltr"><div id="magicdomid4" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span class="" style="margin:0px;padding:1px 0px;background-color:rgb(255,255,255)">Hello folks,</span></div><div id="magicdomid5" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span style="background-color:rgb(255,255,255)"><br style="margin:0px;padding:0px"></span></div><div id="magicdomid6" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span class="" style="margin:0px;padding:1px 0px;background-color:rgb(255,255,255)">The issue I want to raise is related to Swift and Oslo.messaging. </span>Currently Swift doesn't support oslo.messaging middleware. There is no possible to setup RabbitMQ HA setup in swift configuration, so we faced the problem [1] in Fuel. <span class="" style="margin:0px;padding:1px 0px">If we want to use Ceilometer notifications for Swift, we should use </span>ceilometermiddleware. It provides possibility configure properly transport settings <span class="" style="margin:0px;padding:1px 0px">for notifications [2]. The main problem that Fuel uses HA RabbitMQ setup (mirrored queues) with direct connection from clients. The client uses oslo.messaging to establish the connection with one of rabbitmq servers. oslo.messaging uses heartbeats to switch to another RabbitMQ server if/when there are any network issues. However, Swift doesn't use oslo.messaging at all. It's possible to specify only one RabbitMQ server in swift configuration hence there can be problems if specified server is down or has network flapping issues. Alternative solution is to use VIP for RabbitMQ</span><span class="" style="margin:0px;padding:1px 0px"> [3]</span><span class="" style="margin:0px;padding:1px 0px">. This setup is not perfect also as timeout and connection restore time is much worse.</span></div><div id="magicdomid14" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span style="background-color:rgb(255,255,255)"><br style="margin:0px;padding:0px"></span></div><div id="magicdomid480" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span class="" style="margin:0px;padding:1px 0px;background-color:rgb(255,255,255)">So, the question is:</span></div><div id="magicdomid486" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span class="" style="margin:0px;padding:1px 0px;background-color:rgb(255,255,255)">    </span></div><div id="magicdomid490" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span class="" style="margin:0px;padding:1px 0px;background-color:rgb(255,255,255)">Is Swift going to support oslo.messaging and particularly rabbit_hosts?</span></div><div id="magicdomid16" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span style="background-color:rgb(255,255,255)"><br style="margin:0px;padding:0px"></span></div><div id="magicdomid17" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span style="background-color:rgb(255,255,255)"><span class="" style="margin:0px;padding:1px 0px">[1] </span><span class="" style="margin:0px;padding:1px 0px"><a href="https://bugs.launchpad.net/fuel/+bug/1510064" style="margin:0px;padding:0px;white-space:pre-wrap">https://bugs.launchpad.net/fuel/+bug/1510064</a></span></span></div><div id="magicdomid471" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span style="background-color:rgb(255,255,255)"><span class="" style="margin:0px;padding:1px 0px">[2] </span><span class="" style="margin:0px;padding:1px 0px"><a href="https://review.openstack.org/#/c/152273" style="margin:0px;padding:0px;white-space:pre-wrap">https://review.openstack.org/#/c/152273</a></span></span></div><div id="magicdomid477" class="" style="margin:0px;padding:0px;color:rgb(0,0,0);font-family:monospace;font-size:12px;line-height:16px"><span style="background-color:rgb(255,255,255)"><span class="" style="margin:0px;padding:1px 0px">[3] </span><span class="" style="margin:0px;padding:1px 0px"><a href="https://review.openstack.org/#/c/248147" style="margin:0px;padding:0px;white-space:pre-wrap">https://review.openstack.org/#/c/248147</a></span></span></div><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div style="color:rgb(136,136,136)"><span style="font-family:arial;font-size:small">Best Regards,</span><br></div><span style="color:rgb(136,136,136)">Egorenko Denis</span>,</div><div><span style="color:rgb(136,136,136)">Deployment Engineer</span><br style="color:rgb(136,136,136)"><span style="color:rgb(136,136,136)">Mirantis</span><br></div></div></div></div>
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