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| openstackgerrit | wanghao proposed openstack/cinder: Get the replica volume ref for DR https://review.openstack.org/252250 | 01:18 |
|---|---|---|
| openstackgerrit | wanghao proposed openstack/cinder-specs: Get the replica volume ref for DR https://review.openstack.org/182150 | 01:27 |
| openstackgerrit | wanghao proposed openstack/cinder-specs: Get the replica volume ref for DR https://review.openstack.org/182150 | 01:31 |
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| openstackgerrit | Takashi NATSUME proposed openstack/cinder: Enable volume owners to execute migrate_volume_completion https://review.openstack.org/253363 | 02:43 |
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| chirag | Can anyone help me in starting incremental backup in kilo release? I am getting error of "unrecognized arguments: --incr volumebackups". Do we need to make any changes in conf file?? | 04:59 |
| chirag | I am executing cinder backup-create "volume-id" --incr volumebackups | 05:00 |
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| lixiaoy1 | chirag: https://review.openstack.org/#/c/216567/ it seems incremental is not supported | 05:09 |
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| lixiaoy1 | chirag: sorry the link is https://github.com/openstack/python-cinderclient/blob/stable/kilo/cinderclient/v2/shell.py | 05:10 |
| lixiaoy1 | chirag: Line 1005 | 05:11 |
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| chirag | lixiaoy1: I read many articles one of them is https://community.emc.com/community/connect/everything-openstack/blog/2015/04/24/what-s-interesting-with-openstack-cinder-in-kilo | 05:20 |
| chirag | another http://content.mirantis.com/whats-new-in-openstack-kilo-webcast-landing-page.html | 05:22 |
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| chirag | But as per the link provided by you, incremental backup is not supported. | 05:23 |
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| lixiaoy1 | chirag: https://github.com/openstack/cinder/blob/stable/kilo/cinder/api/contrib/backups.py#L240 | 05:26 |
| lixiaoy1 | this function was implemented in cinder, not in python-cinderclient | 05:26 |
| lixiaoy1 | chirag: as a result you can't run this in command, but seems that you can do it using restful interface | 05:27 |
| lixiaoy1 | :q | 05:27 |
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| chirag | Could you provide any link which could provide some examples? | 05:30 |
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| lixiaoy1 | chirag: http://developer.openstack.org/api-ref-blockstorage-v2.html create backup | 05:32 |
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| openstackgerrit | Bardia Keyoumarsi proposed openstack/cinder: Volume driver for Coho Data storage solutions https://review.openstack.org/246690 | 05:39 |
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| openstackgerrit | Takashi NATSUME proposed openstack/cinder: Enable volume owners to execute migrate_volume_completion https://review.openstack.org/253363 | 06:52 |
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| openstackgerrit | LisaLi proposed openstack/cinder: Update retype limitation in volume/api https://review.openstack.org/245460 | 08:06 |
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| openstackgerrit | Vincent Hou proposed openstack/cinder: Storwize: Implement v2 replication (split IO) https://review.openstack.org/237387 | 08:10 |
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| openstackgerrit | Vincent Hou proposed openstack/cinder: Storwize: Implement v2 replication (mirror) https://review.openstack.org/249042 | 08:19 |
| openstackgerrit | Vincent Hou proposed openstack/cinder: Storwize: Implement v2 replication (split IO) https://review.openstack.org/237387 | 08:19 |
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| openstackgerrit | wanghao proposed openstack/cinder-specs: Add pagination support to other resources https://review.openstack.org/247284 | 08:34 |
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| openstackgerrit | Vincent Hou proposed openstack/cinder: Storwize: Implement v2 replication (mirror) https://review.openstack.org/249042 | 08:34 |
| openstackgerrit | Vincent Hou proposed openstack/cinder: Storwize: Implement v2 replication (split IO) https://review.openstack.org/237387 | 08:34 |
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| openstackgerrit | zhangsong proposed openstack/os-brick: Fix the bug of devices list is always none https://review.openstack.org/254091 | 09:23 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: Error handling for invalid SLO/Workload combo https://review.openstack.org/243837 | 10:11 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - getting iscsi ip from port in existing masking view https://review.openstack.org/245997 | 10:32 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - VMAX driver failing to remove zones https://review.openstack.org/244933 | 11:05 |
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| openstackgerrit | zhangsong proposed openstack/os-brick: Fix the bug of devices list is always none https://review.openstack.org/254091 | 11:31 |
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| openstackgerrit | zhangsong proposed openstack/os-brick: Fix the bug of devices list is always none https://review.openstack.org/254091 | 11:35 |
| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Fix for last volume in VMAX3 storage group https://review.openstack.org/244331 | 11:35 |
| openstackgerrit | zhangsong proposed openstack/os-brick: Fix the bug of devices list is always none https://review.openstack.org/254091 | 11:36 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Changing PercentSynced to CopyState in isSynched https://review.openstack.org/246992 | 11:39 |
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| openstackgerrit | javeme proposed openstack/cinder: encode the url parameters https://review.openstack.org/254157 | 12:12 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Extend Volume for VMAX3 https://review.openstack.org/248941 | 12:15 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Incorrect storage group selected on an VMAX3 attach https://review.openstack.org/250443 | 12:27 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Fix for randomly selecting a portgroup https://review.openstack.org/243304 | 12:54 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - get_short_host_name not called in find_device_number https://review.openstack.org/252093 | 13:11 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - Replacing deprecated API EMCGetTargetEndpoints https://review.openstack.org/244328 | 13:23 |
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| openstackgerrit | Merged openstack/python-cinderclient: Remove py26 support https://review.openstack.org/252232 | 13:32 |
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| openstackgerrit | Cyril Roelandt proposed openstack/cinder: Python 3: fix a lot of tests https://review.openstack.org/254198 | 13:38 |
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| openstackgerrit | Helen Walsh proposed openstack/cinder: EMC VMAX - _remove_last_vol_and_delete_sg not being called for V3 https://review.openstack.org/252066 | 13:38 |
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| openstackgerrit | Szymon Wróblewski proposed openstack/cinder: Tooz locks https://review.openstack.org/183537 | 13:52 |
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| openstackgerrit | Sean McGinnis proposed openstack/python-cinderclient: Update minimum tox version to 1.8 https://review.openstack.org/241434 | 14:23 |
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| openstackgerrit | Cyril Roelandt proposed openstack/cinder: Python 3: fix a lot of tests https://review.openstack.org/254198 | 14:34 |
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| openstackgerrit | Sean McGinnis proposed openstack/os-brick: Add reno for release notes management https://review.openstack.org/253207 | 14:47 |
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| openstackgerrit | Sean McGinnis proposed openstack/python-cinderclient: Add reno for release notes management https://review.openstack.org/253206 | 14:48 |
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| openstackgerrit | Sean McGinnis proposed openstack/os-brick: Add reno for release notes management https://review.openstack.org/253207 | 15:10 |
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| tbarron | DuncanT: thanks to lixiaoy1 and dulek I think https://review.openstack.org/#/c/240978/ is ready for your scrutiny when you have a chance. | 15:15 |
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| openstackgerrit | Nate Potter proposed openstack/cinder: Check backup service before backup delete https://review.openstack.org/246498 | 15:20 |
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| e0ne | smcginnis: thanks for fixing empty .placeholders in your patches! let's keep oir code as clean, as possible | 15:34 |
| smcginnis | e0ne: Yeah, it's kind of convention on all of those reno patches, but might as well skip it. | 15:36 |
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| openstackgerrit | Nate Potter proposed openstack/cinder: Move snapshot and volume quota checks to API https://review.openstack.org/249388 | 16:02 |
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| openstackgerrit | Nate Potter proposed openstack/cinder: Move consistency group quota checks to API https://review.openstack.org/249441 | 16:20 |
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| openstackgerrit | Nate Potter proposed openstack/cinder: Move consistency group quota checks to API https://review.openstack.org/249441 | 16:24 |
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| openstackgerrit | Ivan Kolodyazhny proposed openstack/cinder: Use Cinder API v2 for Rally scenarios https://review.openstack.org/254285 | 16:25 |
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| hemna | vinayp ping | 16:40 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Add synchronization in Block Device driver https://review.openstack.org/252979 | 16:48 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Implement snapshots-related features for Block Device Driver https://review.openstack.org/253111 | 16:51 |
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| openstackgerrit | Merged openstack/cinder-specs: Scaling backup service blueprint spec https://review.openstack.org/240978 | 16:52 |
| openstackgerrit | Sean McGinnis proposed openstack/cinder: Update bandit config file for new plugins https://review.openstack.org/212541 | 16:53 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Add synchronization in Block Device driver https://review.openstack.org/252979 | 17:24 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Implement snapshots-related features for Block Device Driver https://review.openstack.org/253111 | 17:26 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Add synchronization in Block Device driver https://review.openstack.org/252979 | 17:43 |
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| mriedem | when a snapshot is created in cinder, does it create a new volume? | 18:36 |
| mriedem | i'm trying to sort out https://bugs.launchpad.net/cinder/+bug/1520296 | 18:36 |
| openstack | Launchpad bug 1520296 in tempest "tempest test failed test_create_ebs_image_and_check_boot" [Undecided,New] | 18:36 |
| jgriffith | mriedem: nope | 18:36 |
| jgriffith | mriedem: you need to clarify though, Ceph backend? | 18:36 |
| mriedem | jgriffith: yes | 18:37 |
| jgriffith | mriedem: based on the bug yes... | 18:37 |
| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-c-vol.txt.gz#_2015-12-07_05_51_07_645 | 18:37 |
| jgriffith | mriedem: so ceph does some things "differently" | 18:37 |
| mriedem | Volume 19efe5d8-fa71-4569-b806-dfe2e0080b7f: being created as snap with specification: {'status': u'creating', 'volume_size': 1, 'volume_name': 'volume-19efe5d8-fa71-4569-b806-dfe2e0080b7f', 'snapshot_id': '366fab34-8494-47ee-925e-1505b7521744'} | 18:37 |
| mriedem | eventually when we go to delete the snapshot volume, it fails because this internal volume thing it created during the snapshot operation is still around http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-c-vol.txt.gz#_2015-12-07_05_51_17_808 | 18:38 |
| jgriffith | mriedem: yes, I looked at that briefly with jbernard last week | 18:38 |
| jgriffith | mriedem: he was digging in and might have some more info... | 18:38 |
| jgriffith | jbernard: around? | 18:38 |
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| jgriffith | mriedem: Ceph as I recall has some tricky things around "guest" assisted snapshots or something like that | 18:39 |
| jgriffith | mriedem: unless that was just Gluster | 18:39 |
| jgriffith | mriedem: regardless I think eharney and russellb put that guest assisted stuff in place | 18:40 |
| smcginnis | jgriffith, mriedem: I thought preliminary findings on that were that ceph does some things async in the background that the tempest test was expecting to be complete by the next call. | 18:40 |
| mriedem | so, | 18:40 |
| jgriffith | it may or may not have anything to do with this bug though | 18:40 |
| mriedem | the test goes like this | 18:40 |
| mriedem | 1. create volume from image | 18:40 |
| mriedem | 2. boot server from volume | 18:40 |
| mriedem | 3. snapshot server (creates image and volume snapshots) | 18:40 |
| mriedem | 4. delete server | 18:40 |
| mriedem | 5. boot new server from image snapshot | 18:41 |
| jgriffith | mriedem: BUT | 18:41 |
| mriedem | then cleanup | 18:41 |
| smcginnis | mriedem: I think the issue is in the cleanup. | 18:41 |
| mriedem | the snapshot deletion fails because this secondary volume created during the snapshot isn't deleted before the snapshot | 18:41 |
| smcginnis | mriedem: The snapshot is still there when the cleanup tries to delete the volume. | 18:41 |
| jgriffith | mriedem: the problem is when you configure ceph it's notion of an Instance snapshot is "different" because it uses itself for Glance images as well | 18:41 |
| smcginnis | jgriffith: Ah! | 18:41 |
| smcginnis | That could explain some things. | 18:41 |
| mriedem | the secondary volume is also automatically attached to the 2nd server that you booted from an image | 18:42 |
| jgriffith | mriedem: smcginnis in the case of Ceph it uses some trickery because it IS the image backend | 18:42 |
| jgriffith | mriedem: smcginnis in other words, when it comes to Instance snapshots that are boot from volume it's completely unique to other backends | 18:43 |
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| jgriffith | The confusion of overloading the term "snapshot" :( | 18:43 |
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| smcginnis | Hopefully jbernard has found something with this. | 18:44 |
| jgriffith | although, snapshotting a boot from volume will also create a Cinder snapshot as well | 18:44 |
| mriedem | yeah, i almost commented on that in tempest this morning b/c they have a snapshot client but you have to know it's volume snapshots | 18:44 |
| jgriffith | mriedem: yeah, it's a bit annoying | 18:45 |
| jgriffith | mriedem: it's caused confusion for a number of operators over the years | 18:45 |
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| mriedem | so it looks like b/c the image snapshot metadata has the bdm in it with the volume snapshot id, when we create the 2nd server from that image, we see the snapshot volume id, map that back to the volume id related to it, and then attaches that to the 2nd instance | 18:46 |
| mriedem | i have to dig into nova's code to see where that is happening | 18:47 |
| jgriffith | mriedem: yes, I believe your interpretation is accurate | 18:47 |
| mriedem | that's what i'm seeing from the logs anyway | 18:47 |
| mriedem | and b/c tempest never knows about that 2nd volume, it doesn't try to delete it before the snapshot volume | 18:48 |
| mriedem | nova would know about it... | 18:48 |
| mriedem | but since the 2nd server wasn't boot from volume, i'm assuming it just detaches the volume on delete | 18:49 |
| mriedem | it doesn't tell cinder to delete that volume | 18:49 |
| jgriffith | mriedem: sounds about right | 18:49 |
| mriedem | oh snap, but it should b/c the image meta has delete_on_termination=True | 18:49 |
| jgriffith | mriedem: hmmm | 18:49 |
| jgriffith | mriedem: but that will fail because of the snap then | 18:50 |
| mriedem | true | 18:50 |
| mriedem | so i'm wondering why this isn't 100% fail | 18:50 |
| mriedem | in the ceph case | 18:50 |
| jgriffith | mriedem: the part that I got to was that we actually issued the request to delete the snapshot and the driver responded "success", but then when we went to the driver again and said "delete the volume" it puked because it said the snapshot was still present | 18:51 |
| jgriffith | mriedem: which is what smcginnis was eluding to earlier WRT the async call | 18:51 |
| mriedem | so when cinder is told to delete the snapshot volume, it will orchestrate cleaning up any volumes created when the snapshot was created? | 18:52 |
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| jgriffith | mriedem: so the problem is that Ceph uses cow files on top of each other | 18:53 |
| jgriffith | mriedem: all of that cleanup is up to them, Cinder doesn't have that concept | 18:53 |
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| jgriffith | mriedem: ie "linked snaps" | 18:53 |
| jgriffith | mriedem: but my earlier point was much simpler than that | 18:53 |
| jgriffith | mriedem: the Ceph driver isn't actually blocking on the delete | 18:53 |
| jgriffith | mriedem: so it says "ok, deleted" but it may or may not be deleted off the backend yet | 18:54 |
| mriedem | hrm, ok, at one point a long time ago i mentioned putting a retry check in the ceph volume driver | 18:54 |
| jgriffith | mriedem: so you get a race, where sometimes it's clear, but other times.. it's actually still on the backend so it fails | 18:54 |
| mriedem | that was shot down for some reason | 18:54 |
| jgriffith | mriedem: I don't know anything about that.. but IMHO delete should be blocking on the device | 18:54 |
| mriedem | https://bugs.launchpad.net/cinder/+bug/1464259/comments/5 | 18:55 |
| openstack | Launchpad bug 1464259 in Cinder "Volumes tests fails often with rbd backend" [High,Triaged] - Assigned to Jon Bernard (jbernard) | 18:55 |
| mriedem | i think jbernard was confusing what tempest was doing and in what order | 18:55 |
| jgriffith | mriedem: we shouldn't respond with succesful deletion until it's actaully confirmed as being gone in this case | 18:55 |
| mriedem | tempest has no concept of this 2nd volume | 18:55 |
| jgriffith | some drivers it doesn't matter, but if you do linked volumes and snaps it is an issue | 18:55 |
| mriedem | and it's a race because sometimes the thing is gone when it says it's deleted i guess | 18:55 |
| mriedem | just fast enough | 18:55 |
| jgriffith | mriedem: yeah | 18:56 |
| jgriffith | mriedem: FWIW I think that should be addressed by modifying Ceph's delete call | 18:56 |
| jbernard | mriedem: i dont follow how tempest doesn't know about the 2nd volume | 18:56 |
| mriedem | jbernard: tempest never created the 2nd volume, or attached it to the 2nd server | 18:57 |
| mriedem | that was all done automatically | 18:57 |
| mriedem | tempest only adds cleanups for resources it creates | 18:57 |
| mriedem | i guess tempest could know that there is a 2nd volume attached to the 2nd server b/c of the boot from snapshot (where the image snapshot has bdm info about the vol snapshot) | 18:58 |
| mriedem | but then tempest (and therefore a user of the api), has to know to check for this kind of thing when deleting resources, which is gross | 18:58 |
| jgriffith | mriedem: jbernard and the problem I have with that is that it's a special case for a single driver | 18:59 |
| jbernard | from what i see locally, tempest's delete of the volume takes longer than expected | 18:59 |
| mriedem | jbernard: so why isn't there something like this in the ceph rbd driver? https://review.openstack.org/#/c/169446/ | 18:59 |
| jgriffith | mriedem: jbernard which would be fine if it was handled by the driver | 18:59 |
| jbernard | mriedem: there can be | 19:01 |
| jbernard | the local failure that i see is that the volume delete takes longer than expected | 19:01 |
| jbernard | and tempest continues to try to cleanup | 19:01 |
| jgriffith | jbernard: takes longer on the backend you mean? | 19:01 |
| jbernard | by deleting the snapshot, which is busy becuse the volume dleete hasn't completed yet | 19:02 |
| jgriffith | jbernard: so driver reports 'deleted' but it's not ? | 19:02 |
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| jbernard | i dont think so, i think it's just timing the delete operation | 19:02 |
| jgriffith | jbernard: in other words, "where" is it taking longer than expected? | 19:02 |
| jgriffith | jbernard: Ok, well I'm thoroughly confused then :) | 19:02 |
| jgriffith | jbernard: and don't understand the log messages any more :) | 19:02 |
| jbernard | jgriffith: it's possible that the failure im seeing is not the same as yours | 19:03 |
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| jbernard | jgriffith: what is the link to your log again? | 19:03 |
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| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/ | 19:04 |
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| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-c-vol.txt.gz#_2015-12-07_05_51_17_808 | 19:04 |
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| jbernard | ok, same that im seeing | 19:05 |
| jbernard | it looks like in traceback-2 that the volume delete took longer than expected | 19:05 |
| jbernard | before it completed, tempest tried to continue cleaning up the snapshot | 19:05 |
| jbernard | which failed | 19:05 |
| jbernard | because it has a dependent volume | 19:05 |
| jbernard | mriedem: so a retry loop would ease this | 19:06 |
| jbernard | mriedem: either we wait more in the driver, or we wait more in the tempest test | 19:07 |
| jbernard | mriedem: but we cannot delete a snapshot with dependant children | 19:07 |
| jbernard | without first deleting or flattening those children | 19:07 |
| jbernard | does this make sense? i could be missing something | 19:08 |
| jbernard | the test is completing successfully, and failing in the cleanup… so there is that ;) | 19:08 |
| mriedem | jbernard: i think this belongs in the driver | 19:08 |
| mriedem | you can't workaround this in tempest, because that means we workaround it for our ci system but everyone in the wild hitting this doesn't get that fix | 19:09 |
| jbernard | mriedem: yeah, i see your point | 19:09 |
| jbernard | we could verify that children are either in a flattening or deleting state, and then wait for them to complete within the driver | 19:10 |
| jbernard | and return only after everything settles | 19:10 |
| jbernard | mriedem: ^ i think that's what we want | 19:10 |
| jbernard | jgriffith: ^ agree? | 19:10 |
| mriedem | i think so | 19:11 |
| mriedem | yeah | 19:11 |
| mriedem | delete is a cast (async), so that's fine | 19:11 |
| mriedem | the only way you'd timeout is in tempest | 19:11 |
| mriedem | if the delete is taking longer than 300 seconds or whatever it is | 19:11 |
| jbernard | that i wont be able to control | 19:11 |
| mriedem | it shouldn't take 5 minutes to complete this in a ci run | 19:12 |
| jbernard | i should say, i cannot control the time it takes from a driver context | 19:12 |
| jbernard | but i agree, it should not be taking so long | 19:12 |
| jbernard | mriedem: there are a few things that need to be addressed, ill start on the driver loop first | 19:13 |
| jbernard | mriedem: would it help to skip this test temporarily for the ceph job? | 19:14 |
| mriedem | mmm | 19:14 |
| mriedem | 79 fails in 10 days | 19:14 |
| mriedem | in the check queue | 19:14 |
| mriedem | idk | 19:14 |
| jbernard | well, it's always an option | 19:15 |
| mriedem | jbernard: btw, track with https://bugs.launchpad.net/cinder/+bug/1464259 | 19:15 |
| openstack | Launchpad bug 1464259 in Cinder "Volumes tests fails often with rbd backend" [High,Triaged] - Assigned to Jon Bernard (jbernard) | 19:15 |
| mriedem | i duped the other bug against that one | 19:15 |
| mriedem | since i think the root causes are the same | 19:15 |
| jbernard | ok thanks | 19:16 |
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| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Implement snapshots-related features for Block Device Driver https://review.openstack.org/253111 | 19:20 |
| jbernard | mriedem: the retry will allow the cleanup routine to continue, but the long volume delete is still going to upset tempest | 19:20 |
| jbernard | mriedem: i need to figure out what's going on there | 19:20 |
| mriedem | long volume delete from the ceph backend? | 19:21 |
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| jbernard | mriedem: i believe so | 19:21 |
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| mriedem | how long is it taking? | 19:21 |
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| jbernard | mriedem: it seems to be exacerbated in an all-in-one vm | 19:22 |
| mriedem | with concurrent test runners | 19:22 |
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| jbernard | mriedem: more than 196 seconds | 19:23 |
| mriedem | i guess if it's still a flaky issue, we can skip the test in the ceph job until https://review.openstack.org/#/c/205282/ lands | 19:23 |
| jbernard | mriedem: but it does complete | 19:23 |
| jbernard | that's an option as well | 19:23 |
| mriedem | oh i see http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/console.html#_2015-12-07_05_59_41_992 | 19:24 |
| mriedem | Details: (TestVolumeBootPatternV2:_run_cleanups) Failed to delete volume-snapshot 366fab34-8494-47ee-925e-1505b7521744 within the required time (196 s). | 19:24 |
| mriedem | so the snapshot delete will timeout if the backing volume delete takes too long | 19:24 |
| jbernard | exactly | 19:24 |
| mriedem | we can always increase the volume delete timeouts for the ceph job too | 19:24 |
| jbernard | mriedem: can that be done for a specific job? | 19:25 |
| jbernard | mriedem: at the least, it would be a good data point | 19:25 |
| mriedem | yeah, it's just env vars | 19:25 |
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| jbernard | ok, that combined with smarter retry logic in snapshot delete might work | 19:26 |
| mriedem | we should actually be failing faster in tempest right now i'd think | 19:28 |
| mriedem | the volume delete times out because it won't delete, because of the backing volume snapshot that isn't gone | 19:28 |
| jbernard | no, hte volume delete does eventually succeed, the snapshot delete fails because it has a dependent volume | 19:29 |
| jbernard | actually, i think we're saying the same thing | 19:30 |
| mriedem | yeah, | 19:30 |
| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/console.html#_2015-12-07_05_59_42_421 | 19:30 |
| mriedem | tempest should puke on that 400 | 19:30 |
| mriedem | i'd think | 19:30 |
| mriedem | but instead it just starts waiting for the volume to be deleted, | 19:30 |
| mriedem | but b/c of that 400, we shouldn't expect it to | 19:30 |
| mriedem | self.validate_response(schema.delete_volume, resp, body) | 19:31 |
| mriedem | that only validates the response if it was successful | 19:32 |
| mriedem | for the 400 it just keeps trucking | 19:32 |
| jbernard | right, and so keeps failing | 19:32 |
| mriedem | mtreinish: ^ that seems like a bug in tempest | 19:32 |
| jbernard | at least for ceph, because of the dependency chain, not waiting for one link to complete means all other delete operations are going to fail | 19:33 |
| openstackgerrit | Falk Reimann proposed openstack/cinder: Add Auth Version 3 support in Swift Backup Driver https://review.openstack.org/247977 | 19:33 |
| jbernard | mriedem: that was what i tried to say in the bug a while back | 19:33 |
| mriedem | yeah, but this isn't hte root cause, it just makes the job run longer than it needs to | 19:34 |
| mriedem | waiting for a thing that won't happen | 19:34 |
| jbernard | the original volume delete does succeed eventually | 19:34 |
| jbernard | which is why the test sometimes passes | 19:34 |
| jbernard | sometimes it makes it under the timeout, and sometimes not | 19:34 |
| mriedem | i'm lost, and hungry (2pm and no lunch yet) | 19:37 |
| mriedem | there are 2 volumes in this case, | 19:38 |
| mriedem | the 'original' volume that tempest created, and fails to delete | 19:38 |
| mriedem | and the 2nd volume that is created when creating the volume snapshot (which tempest doesn't explicitly try to delete) | 19:38 |
| mriedem | jbernard: i think you're saying the 2nd volume eventually deletes | 19:38 |
| jbernard | mriedem: yes, at least locally it does succeed, but sometimes not within the alotted time | 19:39 |
| jbernard | mriedem: and when the timer expires, tempest carries on | 19:39 |
| jbernard | mriedem: and this is where everything falls down | 19:39 |
| openstackgerrit | Dave McCowan proposed openstack/cinder: Check current context before returning cached key manager client https://review.openstack.org/254357 | 19:40 |
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| jbernard | mriedem: because of the dependency chain, waiting must occur (somewhere) | 19:41 |
| mriedem | jbernard: so umm, why don't we just set rbd_flatten_volume_from_snapshot=True? | 19:43 |
| mriedem | https://review.openstack.org/#/c/32490/ | 19:43 |
| jbernard | mriedem: i think that might work also, i assumed tempest had a reason, but that assumption is certainly misguided | 19:44 |
| mriedem | tempest would have 0 idea about this | 19:44 |
| jbernard | yeah, that's what i just remembered | 19:44 |
| mriedem | this is something we'd set in cinder.conf via devstack | 19:44 |
| mriedem | and we'd set the devstack flag from the job config in the project-config repo | 19:45 |
| jbernard | i think i follow what your saying | 19:45 |
| mriedem | if the intent of rbd_flatten_volume_from_snapshot is to disassociate the volume from the snapshot in the backend, | 19:45 |
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| mriedem | and deleting the volume associated with the snapshot in the backend is what's taking too long, | 19:45 |
| mriedem | then it seems rbd_flatten_volume_from_snapshot=True would fix that | 19:45 |
| mriedem | the blueprint is super sparse and old, so i don't even know if this code works | 19:46 |
| jbernard | yeah, if I'm correctly understanding the failure correctly, then it should work | 19:46 |
| mriedem | it doesn't even have unit tests | 19:46 |
| jbernard | mriedem: get some food, ill try it out in my local env | 19:46 |
| mriedem | that is something i can do | 19:47 |
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| openstackgerrit | Dave McCowan proposed openstack/cinder: Check current context before returning cached key manager client https://review.openstack.org/254357 | 19:50 |
| openstackgerrit | Kendall Nelson proposed openstack/cinder: Dynamically Pull Out Option Sections https://review.openstack.org/253277 | 19:52 |
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| mtreinish | mriedem: it does: http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/console.html#_2015-12-07_05_59_42_588 | 20:03 |
| mtreinish | mriedem: that call is during cleanup it's not the real failure | 20:04 |
| mtreinish | the snapshot delete timeout is where things fall apart | 20:04 |
| mriedem | oh yar http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/console.html#_2015-12-07_05_59_42_186 | 20:04 |
| mriedem | snapshot delete gives a 202 | 20:04 |
| mriedem | so tempest waits but it's not going to complete | 20:05 |
| mriedem | does cinder have any concept like instance faults in nova? | 20:06 |
| mriedem | jgriffith: ^? | 20:06 |
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| mriedem | like we won't put the snapshot in error state when the delete fails, but wondering if there is some other resource that we can query for details | 20:06 |
| jgriffith | mriedem: sorry.. snuck away to lunch :) | 20:06 |
| jgriffith | mriedem: no, I don't think we do. But TBH I'm not overly familiar with Instance faults | 20:07 |
| mriedem | it's a resource associated to an instance when something fails in an async operation | 20:07 |
| jgriffith | mriedem: yeah, we don't have anything like that | 20:08 |
| mriedem | like does the task stuff in cinder stash errors when async ops, like snapshot delete, fails | 20:08 |
| mriedem | ok | 20:08 |
| jgriffith | mriedem: would be awfully handy though | 20:08 |
| mriedem | tell jungleboyj's people to work on it | 20:08 |
| jgriffith | LOL | 20:08 |
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| jungleboyj | mriedem: :-) | 20:11 |
| jungleboyj | mriedem: We could have someone look at it if jgriffith and others think it could be useful. | 20:11 |
| mriedem | i guess i'd ask ops people | 20:12 |
| mriedem | if they like server actions in nova and would like the same thing in cinder | 20:12 |
| jgriffith | jungleboyj: it's certainly useful, but we've also proposed other ways of doing similar things over the years | 20:12 |
| jgriffith | jungleboyj: remember the sub-states discussions... and the driver-states talks | 20:12 |
| mriedem | also note that nova at some point is supposed to replace all of that with it's own tasks engine | 20:12 |
| jgriffith | jungleboyj: would probably be good to talk about at mid-cycle maybe? | 20:13 |
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| jgriffith | mriedem: yeah... and there was a proposal to let taskflow do some of this too | 20:13 |
| jgriffith | for "Cinder" | 20:13 |
| jgriffith | lots of ideas, but nothing really materialized | 20:13 |
| jgriffith | mriedem: jungleboyj I would be more inclined to look at future of Nova and task-states | 20:14 |
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| mriedem | which is https://review.openstack.org/#/c/221280/ | 20:14 |
| jgriffith | rather than put forth a bunch of effort to be on an outgoing paradigm :) | 20:14 |
| jgriffith | Yar!!! Manifestos!! | 20:15 |
| mriedem | well, "outgoing" in nova could mean 10 years | 20:15 |
| jgriffith | mriedem: that was assumed :) | 20:15 |
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| jgriffith | mriedem: I wouldn't bet on anything less than 5 :) | 20:15 |
| jgriffith | just kidding | 20:15 |
| openstackgerrit | Kendall Nelson proposed openstack/cinder: Dynamically Pull Out Option Sections https://review.openstack.org/253277 | 20:15 |
| jungleboyj | mriedem: jgriffith I will make a note to put it on the list of things to discuss in the meetup. | 20:17 |
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| smcginnis | jungleboyj: https://etherpad.openstack.org/p/mitaka-cinder-midcycle | 20:24 |
| smcginnis | :) | 20:25 |
| jungleboyj | smcginnis: Should have known you would be on top of that. | 20:26 |
| hemna | booked my flight/hotel for Raleigh | 20:26 |
| smcginnis | hemna: Woot woot | 20:26 |
| hemna | the airline tick was crazy cheap | 20:27 |
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| mriedem | oh fun, found a bug in the ceph backend script in devstack | 20:27 |
| mriedem | for cinder_backends | 20:27 |
| hemna | it cost me more to fly to LAX and back | 20:27 |
| smcginnis | hemna: When I first checked, mine would have been too. But ended up being a little more for a direct flight. :] | 20:27 |
| mriedem | it's setting the rbd options in the wrong group | 20:27 |
| smcginnis | mriedem: Oooh, good find. | 20:27 |
| mriedem | apparently it doesn't matter | 20:28 |
| mriedem | the job is running with the defaults | 20:28 |
| hemna | smcginnis, yah I'm flying in via O'Hare. /me crosses fingers for favorable wx in Chi town. | 20:28 |
| smcginnis | hemna: Ew, layover in Chicago in January? We'll see you Wednesday night. | 20:29 |
| smcginnis | :P | 20:29 |
| diablo_rojo | hemna: What day are you getting to Raleigh? | 20:30 |
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| mriedem | smcginnis: i think i've confused how cinder loads up the backend config options | 20:36 |
| smcginnis | mriedem: You're probably not the only one. :/ | 20:37 |
| smcginnis | mriedem: You're talking in regards to the rbd options? | 20:37 |
| mriedem | yeha | 20:37 |
| mriedem | *yeah | 20:37 |
| mriedem | i noticed in the normal gate jobs, the backend name and config group for lvm is lvmdriver-1 | 20:38 |
| mriedem | which isn't a thing in the code, but cinder knows how to load that up and run it | 20:38 |
| smcginnis | mriedem: I _think_ that's a devstack thing. | 20:38 |
| smcginnis | https://github.com/openstack-dev/devstack/blob/4300f83acf06ce1b6b7976a604a756b9f28f57a1/lib/cinder#L82 | 20:39 |
| mriedem | right but http://logs.openstack.org/31/253931/1/check/gate-tempest-dsvm-full/8b5e2d6/logs/etc/cinder/cinder.conf.txt.gz | 20:39 |
| mriedem | [lvmdriver-1] | 20:40 |
| mriedem | that's not actually a config option group in the cinder code is it? | 20:40 |
| smcginnis | The [lvmdriver-1] section corresponds to whatever is named in enabled_backends. | 20:40 |
| smcginnis | SO you could have enabled_backends = crap and then have a section called [crap] | 20:41 |
| mriedem | yeah but cinder must be processing [crap] | 20:43 |
| smcginnis | mriedem: Yes. I've not dug in to that area though. | 20:43 |
| smcginnis | mriedem: From my understanding, it's somehow just handled by oslo_config. | 20:44 |
| smcginnis | But really don't know the specifics. | 20:44 |
| jgriffith | smcginnis: mriedem it's actually handled in service startup for us | 20:44 |
| jgriffith | smcginnis: mriedem those are in fact arbitrary names | 20:44 |
| jgriffith | smcginnis: mriedem and we iterate through enabled-backends, look for a cooresponding ini section | 20:45 |
| jgriffith | smcginnis: mriedem and launch a c-vol service specifically for that section | 20:45 |
| jgriffith | or "enabled_backend" | 20:45 |
| jgriffith | it confuses people because there are actually "n" c-vol services running under the single parent c-vol service | 20:46 |
| smcginnis | Ah, makes sense. Hence service-list including that arbitrary name. | 20:46 |
| jgriffith | smcginnis: mriedem now... one other things devstack does is throw in a default type setup, which makes things a bit more picky | 20:47 |
| jgriffith | mriedem: I thought you were the one that actually rewrote all of the devstack CINDER_ENABLED_BACKENDS business a year or so ago? | 20:47 |
| mriedem | idk | 20:48 |
| jgriffith | hehe | 20:48 |
| mriedem | i remember dabbling in there at one point | 20:48 |
| jgriffith | mriedem: you're far too young to not remember things :) | 20:48 |
| mriedem | i'm just trying to figure out how to set rbd_flatten_volume_from_snapshot=True in cinder.conf, i think i've got it | 20:49 |
| jgriffith | mriedem: Ohhh | 20:49 |
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| mriedem | https://github.com/openstack-dev/devstack/blob/master/lib/cinder_backends/ceph#L52 | 20:49 |
| mriedem | i'm just adding a var for that | 20:49 |
| mriedem | so we can set it in the project-config job | 20:49 |
| jgriffith | mriedem: I have examples if you need | 20:49 |
| mriedem | i think i have this | 20:50 |
| mriedem | waiting to hear from jbernard if setting that helps at all | 20:50 |
| jgriffith | mriedem: well, if not: https://gist.github.com/1b2d8ce085d31e5eb081 | 20:50 |
| mriedem | yeah enabled_backends = lvmdriver-1 | 20:51 |
| mriedem | http://logs.openstack.org/31/253931/1/check/gate-tempest-dsvm-full/8b5e2d6/logs/etc/cinder/cinder.conf.txt.gz | 20:51 |
| jgriffith | mriedem: obviously you need to modify a few things | 20:51 |
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| ameade | gates busted, ImportError: No module named netifaces | 20:57 |
| ameade | oslo_utils added a new unittest dependency | 20:57 |
| ameade | https://jenkins03.openstack.org/job/gate-cinder-python27/2241/console | 20:59 |
| openstackgerrit | Yuriy Nesenenko proposed openstack/cinder: Implement snapshots-related features for Block Device Driver https://review.openstack.org/253111 | 20:59 |
| smcginnis | ameade: Oh joy. | 21:00 |
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| ameade | smcginnis: I'm stuck in meetings but I imagine we just add it as a new dep? | 21:02 |
| ameade | help | 21:03 |
| ameade | lol wrong channel | 21:03 |
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| jbernard | mriedem: it's running in a loop, 3 passes so far no failures… but i need several more to feel any level of confidence | 21:04 |
| mriedem | jbernard: so i guess my other question was, with the flatten, does that volume created from the snapshot just get abandoned? | 21:05 |
| mriedem | orphaned | 21:05 |
| mriedem | because that could also be bad if we just start piling up volumes that aren't getting deleted | 21:05 |
| jbernard | mriedem: im not sure, i thought the delete succeeded eventually, but i think mtreinish was saying that's not the case | 21:05 |
| jbernard | mriedem: i guess ill find out if/when it fails again | 21:06 |
| mtreinish | jbernard: the snapshot delete might succeed eventually, but it didn't happen in the tempest timeout window | 21:06 |
| mtreinish | which is like 196 secs or something iirc | 21:06 |
| jbernard | ok, then im still on the same page | 21:06 |
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| mriedem | the snapshot delete failed b/c the related volume, created when the snapshot was created, was not deleted | 21:06 |
| mriedem | at least by the time the snapshot delete request came in | 21:06 |
| jbernard | with flatten, the dependencies are removed, and so the slow delete should not fault the other operations | 21:07 |
| mriedem | but as i said, tempest didn't create that 2nd volume so isn't trying to delete it or wait for it to be gone | 21:07 |
| jbernard | and everything *should* be okay in the end | 21:07 |
| mriedem | but is the dependency then orphaned | 21:07 |
| mriedem | this 2nd volume | 21:07 |
| jbernard | who is the 2nd volume creator? | 21:07 |
| jbernard | i thought it was tempest | 21:07 |
| mriedem | nope | 21:07 |
| mriedem | oooo, it's probably nova | 21:08 |
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| mriedem | https://github.com/openstack/nova/blob/master/nova/virt/block_device.py#L391 | 21:08 |
| jbernard | ok, and shouldn't the instance delete clean it up? | 21:09 |
| mriedem | not if the bdm isn't created with delete_on_termination=True | 21:10 |
| jbernard | ahh | 21:10 |
| mriedem | which it is on the initial server create | 21:10 |
| mriedem | and should be in the image snapshot metadata | 21:10 |
| jbernard | welp, unstack.sh will get it :) | 21:10 |
| jbernard | so then i should have volumes piling up… lemme check | 21:11 |
| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/console.html#_2015-12-07_05_59_42_109 | 21:11 |
| mriedem | 'x-image-meta-property-block_device_mapping': '[{"guest_format": null, "boot_index": 0, "delete_on_termination": true, "no_device": null, "snapshot_id": "366fab34-8494-47ee-925e-1505b7521744", "device_name": "/dev/vda", "disk_bus": "virtio", "image_id": null, "source_type": "snapshot", "device_type": "disk", "volume_id": null, "destination_type": "volume", "volume_size": 1}]' | 21:11 |
| mriedem | so the bdm has snapshot_id and delete_on_termination=True | 21:11 |
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| mriedem | so i think when we create the 2nd server from that image snapshot, we get that snapshot bdm and create the 2nd volume in cinder from that snapshot id | 21:12 |
| mriedem | and attac hit | 21:12 |
| mriedem | *Attach | 21:12 |
| jbernard | but with delete_on_termination=True, it should be cleaned up at delete time, right? | 21:12 |
| mriedem | yeah, it should | 21:13 |
| jbernard | hmm, i do have a couple of orphaned volumes | 21:13 |
| mriedem | https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L2342 | 21:13 |
| jbernard | that could be from previous failures | 21:13 |
| mriedem | yeah, i figured that was the risk with that flatten option | 21:13 |
| mriedem | oh | 21:13 |
| jbernard | im not sure honestly | 21:13 |
| mriedem | nova doesn't know about that option anyway | 21:14 |
| mriedem | so nova will continue to create that volume from the snapshot bdm | 21:14 |
| jbernard | right, but the resulting volume will stand alone | 21:14 |
| jbernard | and could be deleted at any point | 21:14 |
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| jbernard | mriedem: it's either nova or tempest that should be deleting the volume, correct? | 21:15 |
| mriedem | should be nova | 21:16 |
| mriedem | i'm checking the logs | 21:16 |
| jbernard | 6 more runs, still no failures | 21:16 |
| mriedem | this is where the compute api gets the bdms from the image meta | 21:17 |
| mriedem | https://github.com/openstack/nova/blob/master/nova/compute/api.py#L803 | 21:17 |
| mriedem | and this is where we should create the vol from snapshot and attach that vol on boot of the 2nd server https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L1727 | 21:18 |
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| mriedem | yar, this is the 2nd server boot: | 21:20 |
| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-n-cpu.txt.gz#_2015-12-07_05_51_06_776 | 21:20 |
| mriedem | Booting with volume None at /dev/vda | 21:20 |
| mriedem | volume is None because this isn't a volume bdm, it's a snapshot bdm | 21:20 |
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| jbernard | i thought a volume was created from the snapshot here https://github.com/openstack/nova/blob/master/nova/virt/block_device.py#L391 | 21:21 |
| mriedem | it is | 21:22 |
| mriedem | https://github.com/openstack/nova/blob/master/nova/virt/block_device.py#L506 | 21:22 |
| mriedem | that log message is from right above it | 21:22 |
| jbernard | so that instance is failing to boot? | 21:22 |
| mriedem | this is all of the super hard to follow bdm code in nova | 21:22 |
| mriedem | no, it boots fine | 21:22 |
| jbernard | ok, then im completely lost : | 21:22 |
| mriedem | coffee time, bbiab | 21:22 |
| jbernard | ) | 21:22 |
| jbernard | kk | 21:22 |
| mriedem | yeah man, it's the nova bdm code | 21:23 |
| mriedem | super confusing | 21:23 |
| mriedem | lots of smoke and mirrors | 21:23 |
| jbernard | i'd say it's working | 21:23 |
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| jbernard | (the confusing bit) | 21:23 |
| mriedem | yeah so it definitely boots the volume from the snapshot | 21:23 |
| mriedem | this is the volume that's created | 21:25 |
| mriedem | http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-n-cpu.txt.gz#_2015-12-07_05_51_07_467 | 21:25 |
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| jbernard | ok, so that seems correct logic | 21:27 |
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| jbernard | im missing why nova doesn't delete the created volume later on | 21:27 |
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| jbernard | so i think what you're saying is that the root cause begins in nova? | 21:29 |
| jbernard | and the flatten option masks the problem | 21:30 |
| jbernard | by allowing tempest to keep rolling | 21:30 |
| jbernard | (which it's doing, still no failures) | 21:30 |
| * notmorgan makes plans to hit cinder with the keystoneauth bat soon. :) | 21:30 | |
| jbernard | mriedem: i don't appear to have accumulating volumes, same # as first check | 21:35 |
| merooney | smcginnis Are you looking into the gate issue? | 21:35 |
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| mriedem | jbernard: with the flatten=True option you mean? | 21:37 |
| jbernard | mriedem: right | 21:37 |
| jbernard | mriedem: 16 consecutive passes so far | 21:37 |
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| jbernard | mriedem: i do have three orphaned volumes, but they may have been there before i started | 21:38 |
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| openstackgerrit | Ryan McNair proposed openstack/cinder: WIP - Move QoS_Specs to be a VersionedObject https://review.openstack.org/251989 | 21:38 |
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| mriedem | jbernard: http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-n-cpu.txt.gz#_2015-12-07_05_51_16_600 | 21:43 |
| mriedem | duh duh duh | 21:43 |
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| mriedem | [instance: 91817c91-6305-4e44-9f53-0eca5a27aa8d] Ignoring VolumeNotFound: Volume None could not be found. _shutdown_instance /opt/stack/new/nova/nova/compute/manager.py:2317 | 21:43 |
| pv | hey quick question, im trying to test my consistency group create method and I keep getting 'ERROR: Policy doesn't allow consistencygroup:get to be performed.' | 21:44 |
| pv | any help? | 21:44 |
| ameade | https://review.openstack.org/#/c/254379/ | 21:44 |
| ameade | merooney: ^^ | 21:44 |
| mriedem | jbernard: so it's a nova bug | 21:47 |
| pv | i checked /etc/cinder/policy.json and removed the group:nobody rule | 21:47 |
| mriedem | nova doesn't attempt to cleanup the volume it created (from the snapshot bdm) | 21:47 |
| pv | so i changed it to "consistencygroup:create" : "", | 21:47 |
| pv | but im still getting the same error when i try running the command | 21:47 |
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| jbernard | mriedem: but not every time? | 21:49 |
| jbernard | mriedem: so.. what changes when it fails? | 21:49 |
| mriedem | not really sure yet | 21:49 |
| mriedem | updating the bug with notes | 21:49 |
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| jbernard | i did just get one more orphaned volume | 21:49 |
| mriedem | we'll likely need ndipanov to help look tomorrow | 21:49 |
| jbernard | mriedem: tomorrow is very close for him | 21:50 |
| jbernard | mriedem: so flatten is hack | 21:51 |
| jbernard | mriedem: we should wait for ndipanov 's thoughts | 21:51 |
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| mriedem | jbernard: oh another thing, | 21:56 |
| mriedem | which might be contributing to the race | 21:56 |
| smcginnis | merooney: Sorry, back to back meetings. ameade, thanks for the pointer. Looks like that should fix it. | 21:57 |
| mriedem | the 2nd server created in tempest, it doesn't wait for it to be ACTIVE before it sends the delete request | 21:57 |
| jbernard | mriedem: that could be buggy | 21:58 |
| mriedem | i'm sure | 21:58 |
| mriedem | b/c we're creating a 2nd server and attaching that for the 2nd server | 21:58 |
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| mriedem | like this http://logs.openstack.org/20/218120/3/check/gate-tempest-dsvm-full-ceph/2349f2d/logs/screen-n-cpu.txt.gz#_2015-12-07_05_51_15_280 | 22:00 |
| jbernard | mriedem: is nova expected to handle the transition correctly? | 22:01 |
| jbernard | mriedem: i suppose so | 22:01 |
| mriedem | expected? i suppose so | 22:01 |
| mriedem | i guess this is why scottda wants force-detach of volumes in nova :) | 22:01 |
| jbernard | so even if it races, the end result should be consistent | 22:01 |
| mriedem | there is definitely some assumptions made in the code here that the bdm is a volume (and not handling that it's a vol snapshot) | 22:02 |
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| mriedem | jbernard: my findings: https://bugs.launchpad.net/cinder/+bug/1464259/comments/13 | 22:05 |
| openstack | Launchpad bug 1464259 in OpenStack Compute (nova) "Volumes tests fails often with rbd backend" [High,Triaged] | 22:05 |
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| jbernard | mriedem: nicely done | 22:07 |
| mriedem | the question i have for ndipanov is when we create the volume bdm for the instance after creating it from the snapshot | 22:08 |
| mriedem | in the nova db | 22:08 |
| mriedem | i think that's supposed to be this: https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L4623 | 22:08 |
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| mriedem | the bdm should have it's volume_id set here https://github.com/openstack/nova/blob/master/nova/virt/block_device.py#L396 | 22:13 |
| mriedem | and then after the attach is done it should update the bdm table in the db | 22:14 |
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| openstackgerrit | Mitsuhiro Tanino proposed openstack/cinder: The copy_volume_to_image returns invalid volume attribute https://review.openstack.org/254414 | 22:26 |
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| openstackgerrit | Alex O'Rourke proposed openstack/cinder: 3PAR: Implement v2 replication (managed) https://review.openstack.org/231201 | 22:31 |
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| openstackgerrit | Alex O'Rourke proposed openstack/cinder: 3PAR: Implement v2 replication (unmanaged) https://review.openstack.org/231245 | 22:32 |
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| pv | my cinder scheduler log shows this error 'Could not find a host for consistency group e9e88fcc-80a4-4495-805d-b274348ac4a2' when im trying to create a consistency group | 22:44 |
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| pv | i can make volumes and everything else just fine and the scheduler logs don't show the error when I'm doing all of the other API calls | 22:45 |
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| pv | any idea where I can find more information on why consistency groups can't be made on my host | 22:45 |
| openstackgerrit | Alex O'Rourke proposed openstack/cinder: 3PAR: Implement v2 replication (managed) https://review.openstack.org/231201 | 22:46 |
| openstackgerrit | Alex O'Rourke proposed openstack/cinder: 3PAR: Implement v2 replication (unmanaged) https://review.openstack.org/231245 | 22:47 |
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| openstackgerrit | Alex O'Rourke proposed openstack/cinder: 3PAR: Implement v2 replication (managed) https://review.openstack.org/231201 | 23:10 |
| openstackgerrit | Alex O'Rourke proposed openstack/cinder: 3PAR: Implement v2 replication (unmanaged) https://review.openstack.org/231245 | 23:10 |
| pv | any help on why the cinder scheduler would be throwing the 'Could not find a host for consistency group' error? | 23:11 |
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| openstackgerrit | Jay Bryant proposed openstack/cinder: Dynamically Pull Out Option Sections https://review.openstack.org/253277 | 23:15 |
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| jgriffith | patrickeast: ping | 23:22 |
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| patrickeast | jgriffith: pong | 23:25 |
| jgriffith | patrickeast: hey ya... we were just looking at CG implementations... pure seemed like a good one to check out :) | 23:26 |
| jgriffith | patrickeast: but can't seem to find your library/client anywhere? | 23:26 |
| jgriffith | patrickeast: the interface is well.. nothing special | 23:26 |
| patrickeast | the python module? I think it's on github, some documentation is linked from the pypi page too | 23:27 |
| jgriffith | patrickeast: cool.. lemme look on pypi | 23:27 |
| jgriffith | patrickeast: OH DERP | 23:27 |
| jgriffith | found it | 23:27 |
| patrickeast | https://github.com/purestorage/rest-client | 23:27 |
| jgriffith | :) | 23:27 |
| jgriffith | patrickeast: thank you kind sir | 23:27 |
| jgriffith | patrickeast: and there's my answer already :) | 23:28 |
| jgriffith | thanks man | 23:28 |
| patrickeast | Lemmie know if you have any questions iirc the docs kind of rely on knowing how Purity works | 23:28 |
| patrickeast | np | 23:28 |
| jgriffith | patrickeast: nope, just wanted to confirm an interpretation via code | 23:28 |
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| jgriffith | patrickeast: everybody that's implemented at this point appears to be using a lib | 23:28 |
| patrickeast | haha guess its what all the cool kids are doing :P | 23:30 |
| jgriffith | patrickeast: no doubt! :) | 23:33 |
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