| openstackgerrit | aditi sharma proposed openstack/watcher master: [WIP] Add Datasource Abstraction https://review.openstack.org/518852 | 00:50 |
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| openstackgerrit | YumengBao proposed openstack/watcher-specs master: Add storage capacity balance Strategy https://review.openstack.org/501659 | 01:48 |
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| openstackgerrit | suzhengwei proposed openstack/watcher-specs master: listen to all necessary notifications for updating compute CDM https://review.openstack.org/508105 | 05:52 |
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| openstackgerrit | suzhengwei proposed openstack/watcher-specs master: cluster-maintenance-strategy https://review.openstack.org/464602 | 06:21 |
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| openstackgerrit | suzhengwei proposed openstack/watcher-specs master: exclude locked instances https://review.openstack.org/506078 | 06:37 |
| openstackgerrit | Akihiro Motoki proposed openstack/watcher-dashboard master: Drop django_openstack_auth from requirements.txt https://review.openstack.org/520328 | 07:03 |
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| openstackgerrit | suzhengwei proposed openstack/watcher master: option to rollback action_plan when it fails https://review.openstack.org/517179 | 07:56 |
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| hidekazu | Yumeng: alexchadin: hi | 08:10 |
| alexchadin | hidekazu: hi | 08:10 |
| Yumeng | hi | 08:10 |
| hidekazu | you are using watcher in production. supporting ha? | 08:11 |
| hidekazu | in my understanding, watcher does not support ha yet. | 08:11 |
| hidekazu | so all watcher service is not highly available. means single watcher-api, decision-engine, applier. | 08:12 |
| hidekazu | alexchadin: Yumeng: i am sorry if you can not open in public. | 08:18 |
| alexchadin | hidekazu: if I understand it right, we need to sync memory items with database | 08:19 |
| hidekazu | alexchadin: decision-engine has CDM and have to sync with db. | 08:20 |
| alexchadin | hidekazu: yes | 08:20 |
| alexchadin | hidekazu: continuous audits are already synced with db | 08:21 |
| alexchadin | hidekazu: what else? | 08:21 |
| hidekazu | alexchadin: you implemented Supporting HA for background jobs in Watcher. could you teach me what is the progress for ha? | 08:22 |
| alexchadin | hidekazu: IMHO, CDM is the first thing to be implemented for HA | 08:23 |
| hidekazu | alexchadin: now we can decision engine be ha? | 08:23 |
| alexchadin | hidekazu: ah, DE is already synced... | 08:23 |
| alexchadin | hidekazu: well, we can try | 08:23 |
| alexchadin | hidekazu: I don't see other things which should be synced with DB to enable HA | 08:24 |
| hidekazu | alexchadin: no one tries to watcher ha in working enviroment, right? | 08:24 |
| alexchadin | hidekazu: right | 08:24 |
| hidekazu | as far as we know, of course. | 08:25 |
| hidekazu | alexchadin: i listed ha in forum etherpad, but time was not enough to discuss. | 08:26 |
| alexchadin | hidekazu: do you have any experience with HA setup? | 08:26 |
| hidekazu | alexchadin: no, but project started and asked again.. | 08:27 |
| hidekazu | last year, vincent clearly said no to me. | 08:27 |
| hidekazu | so the project last year setup single watcher. and this year comes. | 08:28 |
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| hidekazu | alexchadin: only progress is that your blueprint has implemented during one year. | 08:29 |
| alexchadin | I will try to run watcher in ha after talks with my architect | 08:31 |
| hidekazu | alexchadin: so good. pike release? | 08:31 |
| alexchadin | hidekazu: yeap | 08:32 |
| alexchadin | hidekazu: 1 API - 2 DE - 2 Applier | 08:32 |
| hidekazu | alexchadin: why not 2 api? | 08:32 |
| alexchadin | hidekazu: maybe 2 api | 08:33 |
| Yumeng | hidekazu: it's ok. | 08:34 |
| Yumeng | hidekazu:when we did the test, we once used the following : Node 1 as the main controller node with watcher api, decision-engine, Node 2 as a backup controller node and a compute node with watcher-api, decision-engine ,Node 3 and Node 4 as compute node. | 08:34 |
| hidekazu | Yumeng: controllers are active -standby? | 08:37 |
| suzhengwei | One active, others standby? | 08:39 |
| Yumeng | hidekazu: yes. one active, the other standby | 08:40 |
| hidekazu | Yumeng: controller includes applier, right? maybe you just missed. | 08:41 |
| Yumeng | hidekazu:yes yes with applier | 08:42 |
| suzhengwei | In my env, it has tree controllers, all active and watcer-api use VIP to provide service. | 08:46 |
| hidekazu | suzhenwei: ocata? | 08:47 |
| suzhengwei | yes | 08:47 |
| hidekazu | suzhengwei | 08:47 |
| hidekazu | suzhengwei: working? | 08:47 |
| suzhengwei | it works. | 08:48 |
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| hidekazu | suzhengwei: but you reported watcher-api haproxy problem. | 08:49 |
| suzhengwei | But I noticed that one audit created by watcher-api from the vip watcher-api, but execued in another controller. | 08:49 |
| hidekazu | suzhengwei: resolved? | 08:49 |
| suzhengwei | No, it doesn't use haproxy for watcher-api. | 08:50 |
| suzhengwei | just only use VIP. | 08:51 |
| hidekazu | suzhenwei: only watcher-apis are active standby? | 08:51 |
| suzhengwei | yes | 08:52 |
| hidekazu | Yumeng: do you have experience with bad case by active active? | 08:53 |
| adisky_ | hidekazu: hi | 08:53 |
| hidekazu | adisky_: hi | 08:53 |
| Yumeng | hidekazu: sorry, we didn't try active active. :( | 08:54 |
| hidekazu | Yumeng: ok | 08:55 |
| hidekazu | so we shared ocata version real ha case. thanks . | 08:56 |
| Yumeng | hidekazu: Could you explain more about watcher HA ? I was not very clear about what's a real watcher HA should be like. | 08:58 |
| hidekazu | Yumeng: for me,watcher service is installed in each controllers(3 node) and watcher-api are load balanced. if one controller has down, all services are fine. | 09:01 |
| hidekazu | Yumeng: user does not know one controller is down. | 09:02 |
| Yumeng | hidekazu: got it. thanks! | 09:06 |
| hidekazu | Yumeng: if active standby, system needs switching time for short period. so active active is better. | 09:06 |
| hidekazu | Yumeng: welcome | 09:06 |
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| openstackgerrit | Merged openstack/watcher-specs master: Add Datasource Abstraction and Multi Datasource https://review.openstack.org/508384 | 11:57 |
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| openstackgerrit | Andreas Jaeger proposed openstack/watcher-dashboard master: Remove setting of version/release from releasenotes https://review.openstack.org/520748 | 19:56 |
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