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slaweq | #startmeeting neutron_drivers | 14:00 |
---|---|---|
openstack | Meeting started Fri Jun 26 14:00:30 2020 UTC and is due to finish in 60 minutes. The chair is slaweq. Information about MeetBot at http://wiki.debian.org/MeetBot. | 14:00 |
openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 14:00 |
slaweq | hi | 14:00 |
*** openstack changes topic to " (Meeting topic: neutron_drivers)" | 14:00 | |
openstack | The meeting name has been set to 'neutron_drivers' | 14:00 |
ralonsoh | hi | 14:00 |
lajoskatona | o/ | 14:00 |
mlavalle | o/ | 14:00 |
haleyb | o/ | 14:01 |
slaweq | lets wait few more minutes for yamamoto and amotoki | 14:01 |
slaweq | njohnston: told me just that he will be a bit late | 14:01 |
yamamoto | jo | 14:01 |
slaweq | hi yamamoto | 14:01 |
slaweq | ok, I think we can start | 14:04 |
slaweq | #topic RFEs | 14:04 |
*** openstack changes topic to "RFEs (Meeting topic: neutron_drivers)" | 14:04 | |
slaweq | we have 2 RFEs to discuss today | 14:04 |
slaweq | first one is: | 14:04 |
slaweq | #link https://bugs.launchpad.net/neutron/+bug/1882804 | 14:04 |
openstack | Launchpad bug 1882804 in neutron "RFE: allow replacing the QoS policy of bound port" [Undecided,New] - Assigned to Lajos Katona (lajos-katona) | 14:04 |
lajoskatona | This one was proposed by Gibi | 14:05 |
lajoskatona | during the PTG perhaps | 14:05 |
slaweq | yes, and it's follow up after the PTG | 14:06 |
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lajoskatona | As I see the proposed usecase is limited and discuss only the case when new QoS policy (with min bw) is set to the port that is bound. | 14:06 |
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lajoskatona | exactly, so no radial change in how things work now | 14:07 |
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slaweq | I know we talked about it and we agreed with Nova that this should be the way to go | 14:08 |
lajoskatona | What is a cost that if it will work port update can go to placement and fetch allocations for the Resource Provider, and do change if the QoS policy bandwidth is different from the original bandwidth | 14:08 |
slaweq | so neutron will tell placement about new resource usage | 14:08 |
lajoskatona | yes | 14:09 |
slaweq | lajoskatona: one question - are our drivers already prepared to update such min bandwidth for port or this also has to be implemented? | 14:10 |
ralonsoh | I think both are different topics, scheduling enforcement and backend enforcement | 14:11 |
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lajoskatona | slaweq: yes Ralonsoh is right a I see | 14:12 |
ralonsoh | currently we don't allow min-bw changes, is that correct? | 14:12 |
lajoskatona | we can do this from qos service plugin as I checked | 14:12 |
lajoskatona | ralonsoh: that is again a different usecase, first I messed it up as well | 14:13 |
lajoskatona | that is changing the policy of a Qos policy that is attached to a port | 14:13 |
lajoskatona | this RFE is about updating the port's QoS policy with a new on that has different min_bw value | 14:14 |
ralonsoh | right | 14:14 |
lajoskatona | to tell the truth I am not sure if the 2 can be covered with one step | 14:14 |
lajoskatona | so checked only the one described in the RFE | 14:14 |
slaweq | ok, so this rfe is only about scheduling/tracking available resources part - I'm fine with that | 14:15 |
slaweq | and I'm ok with approving this rfe | 14:16 |
njohnston | o/ | 14:16 |
haleyb | +1 | 14:17 |
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njohnston | +1 that sounds reasonable (just finished reading the scrollback) | 14:18 |
mlavalle | +1 | 14:18 |
yamamoto | +1 | 14:21 |
slaweq | ok, I will mark this rfe as approved | 14:21 |
slaweq | lajoskatona: are You going to work on this in Victoria? | 14:21 |
lajoskatona | slaweq: Yes I planned it | 14:22 |
slaweq | ok, that's great | 14:22 |
slaweq | thx lajos | 14:22 |
slaweq | *lajoskatona :) | 14:22 |
slaweq | ok, next rfe | 14:23 |
slaweq | #link https://bugs.launchpad.net/neutron/+bug/1828494 | 14:23 |
openstack | Launchpad bug 1828494 in neutron "[RFE][L3] l3-agent should have its capacity" [Wishlist,In progress] - Assigned to LIU Yulong (dragon889) | 14:23 |
slaweq | this one was discussed few times already | 14:23 |
lajoskatona | Thanks for discussion | 14:23 |
slaweq | but recently liuyulong changed it to use "max_routers" parameter for L3 agent | 14:23 |
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slaweq | and add new scheduler driver which will not schedule to the agent more routers than agent's max_routers value | 14:24 |
slaweq | so I wanted to ask You what do You think about it :) | 14:24 |
ralonsoh | so is "just" to add a new filter/weight to the l3 agent scheduling, right? | 14:28 |
slaweq | ralonsoh: I think so | 14:28 |
ralonsoh | we can model, in placement API, the BW of the physical resources | 14:29 |
ralonsoh | should this use this model too? | 14:29 |
slaweq | but now when I think about it I'm not sure how neutron will tell user that there was no available L3 agents to schedule router | 14:29 |
slaweq | ralonsoh: this was proposed initially IIRC but liuyulong didn't want to use placement there, that's why we proposed this easier parameter which is max_routers | 14:30 |
slaweq | there is spec proposed also https://review.opendev.org/#/c/658451/ but it isn't updated yet | 14:30 |
ralonsoh | ahhh I see | 14:31 |
mlavalle | so what we are discussing is the "routers_max" option? | 14:31 |
slaweq | mlavalle: my understanding is that RFE is now about using "routers_max" config option in L3 agent | 14:32 |
slaweq | and add new scheduler driver which will respect this value | 14:32 |
slaweq | details can be discussed in the spec's review | 14:32 |
ralonsoh | (that changes completely the current spec) | 14:33 |
slaweq | like e.g. what to do if there is no available L3 agents to schedule new router | 14:33 |
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ralonsoh | this parameter and the way of counting this is easier | 14:33 |
ralonsoh | and you don't need to model those "external_interfaces" in the config | 14:33 |
slaweq | ralonsoh: I agree - it's much easier IMO now | 14:33 |
mlavalle | I would be ok approving this RFE on that assumption and moving to the detailed discussion in the spec | 14:35 |
slaweq | mlavalle: that' | 14:35 |
slaweq | that's exactly what I wanted to propose :) | 14:35 |
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slaweq | haleyb: yamamoto njohnston: any thoughts? | 14:38 |
haleyb | i'm fine with it assuming an update as well | 14:38 |
yamamoto | i like the simplicity (compared to the original bandwidth thing) | 14:39 |
njohnston | I agree; I thionk an operator is going to want some guidance on how to sensibly calculate what they should set this setting to but that is a question for the spec review | 14:39 |
yamamoto | if it serves his purpose, i'm fine with it | 14:39 |
slaweq | ok, so I will mark this rfe as approved with using this max_routers parameter instead of bandwidth | 14:41 |
slaweq | and we will discuss more details in spec review | 14:41 |
slaweq | that's all from me for today | 14:41 |
slaweq | anything else You want to discuss today? | 14:42 |
yamamoto | nothing from me | 14:43 |
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slaweq | ok, so I will give You 15 minutes back | 14:45 |
slaweq | have a great weekend o/ | 14:45 |
slaweq | see You on Monday | 14:45 |
slaweq | #endmeeting | 14:45 |
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/" | 14:45 | |
openstack | Meeting ended Fri Jun 26 14:45:24 2020 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 14:45 |
openstack | Minutes: http://eavesdrop.openstack.org/meetings/neutron_drivers/2020/neutron_drivers.2020-06-26-14.00.html | 14:45 |
openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/neutron_drivers/2020/neutron_drivers.2020-06-26-14.00.txt | 14:45 |
openstack | Log: http://eavesdrop.openstack.org/meetings/neutron_drivers/2020/neutron_drivers.2020-06-26-14.00.log.html | 14:45 |
ralonsoh | bye | 14:45 |
yamamoto | good night | 14:45 |
haleyb | o/ | 14:45 |
slaweq | good night yamamoto :) | 14:45 |
lajoskatona | Bye | 14:46 |
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mlavalle | o/ | 14:46 |
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