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| openstackgerrit | Qi Peng proposed openstack/python-glanceclient master: Global_request_id is override https://review.openstack.org/601225 | 08:53 |
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| valerii_zhelezni | Hello, | 09:17 |
| valerii_zhelezni | I found information that your team needs in contributors and it is interested for me. | 09:17 |
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| imacdonn | rosmaita: please review these when you have a moment: https://review.openstack.org/598300 https://review.openstack.org/598426 https://review.openstack.org/598204 | 17:50 |
| rosmaita | will do | 17:52 |
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| krypto | hi all i have uploaded image in qcow2 format and trying boot from volume with ceph backend .In Mitaka release i see a qemu convert process converting file to raw.Is there a way to disable this | 17:58 |
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| imacdonn | krypto: what do you mean by "disable this"? Do you mean copying the qcow2 format to the RBD volume? that doesn't make sense | 19:22 |
| krypto | imacdonn converting qcow2 to raw and then copying it | 19:23 |
| krypto | i guess its handled in rbd driver and not in glance | 19:24 |
| imacdonn | krypto: I'm not sure what you're asking ... it has to be converted to raw | 19:25 |
| imacdonn | krypto: there's a comment here that may be somewhat relevant too: http://docs.ceph.com/docs/mimic/rbd/qemu-rbd/ | 19:26 |
| krypto | in my mitaka environment i uploaded a large qcow2 file and trying to do boot from volume which is ceph rbd and my controller stopped responding to any api calls because of high io/wait from this qcow2 to raw conversion | 19:26 |
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| imacdonn | krypto: Ahh, ok ... seems like you need to address the I/O bottleneck somehow ... if you could somehow make it safe to copy the qcow2 without converting it, you'd still have to do I/O, but maybe a bit less | 19:28 |
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| krypto | i feel this way someone could DOS my environment by uploading a super large qcow2 file and execute multiple boot from volumes from different images | 19:29 |
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| imacdonn | krypto: are you asking if you can disable creating volumes from images? That'd be more of a cinder question ... it might be possible with policies | 19:47 |
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| krypto | imacdonn initially i though glance is doing the conversion of qcow2 to raw,now i think i know its rbd driver | 20:08 |
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| imacdonn | krypto: it's definitely something on the cinder side ... I think it may be cinder-volume in general, not driver-specific | 20:09 |
| rosmaita | krypto: i believe that ceph prefers the image in raw format, or you cannot get some optimizations that ceph allows | 20:10 |
| rosmaita | krypto: ask in the cinder channel, though it's PTG week, so the channel may not be monitored as well as usual | 20:11 |
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| smcginnis | krypto: We should go to the cinder channel, but make sure you have this - https://review.openstack.org/#/c/375625/1 | 20:14 |
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| rosmaita | smcginnis are you at the ptg? | 20:47 |
| rosmaita | if you are, can you get some info about the preferred fix for the bandit problem that occurred at RC-time? We did an emergency bandit-ectomy for master and stable/rocky, but there's probably a better solution for that. I'm asking because there's a patch up to remove bandit from stable/queens, and I don't want to approve it if a better solution is available. | 20:52 |
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| smcginnis | rosmaita: Sure, I'll ask around. | 21:06 |
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| smcginnis | rosmaita: I'm not sure if I know the whole issue we had, but we may just need to update how it was being done. Removal is probably OK for now, especially in stable. | 21:07 |
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| rosmaita | smcginnis ty | 21:14 |
| smcginnis | rosmaita: Really too bad you couldn't make it this time. :/ | 21:16 |
| rosmaita | smcginnis: please say hello to all the appropriate people for me. Hope to be there next time | 21:17 |
| smcginnis | I'll even say hi to the inappropriate people too. :P | 21:18 |
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| rosmaita | smcginnis i can't ask any more than that! | 21:36 |
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