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openstackgerrit | Pierre Riteau proposed openstack/project-config master: Add Review-Priority flag for cloudkitty https://review.opendev.org/756072 | 13:40 |
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larsks | Hey folks. Is something up with docs.openstack.org? I can't seem to load any pages from there. | 19:50 |
fungi | checking | 19:50 |
fungi | it's taking a while to load for me. i'll see if something's up (or down rather) with static.opendev.org or the afs backend | 19:50 |
clarkb | dmesg says we lost connectivity with a fileserver | 19:51 |
clarkb | afs02.dfw.openstack.org. specifically | 19:52 |
fungi | looks like static.opendev.org is having trouble talking to a fileserver | 19:52 |
fungi | afs: Lost contact with file server 23.253.73.143 in cell openstack.org (code -1) (all multi-homed ip addresses down for the server) | 19:52 |
fungi | afs: file server 23.253.73.143 in cell openstack.org is back up (code 0) (multi-homed address; other same-host interfaces may still be down) | 19:52 |
fungi | afs: Waiting for busy volume 536871075 () in cell openstack.org | 19:52 |
fungi | repeated for multiple volumes | 19:52 |
fungi | yeah, 23.253.73.143 is afs02.dfw | 19:53 |
clarkb | http://cacti.openstack.org/cacti/graph.php?action=view&local_graph_id=6397&rra_id=all | 19:53 |
fungi | which i can't ssh into | 19:53 |
fungi | will check the oob console | 19:53 |
clarkb | the extra cpu load seems to come along with some extra bw usage but that is before the fedora mirror would've been released I think | 19:53 |
clarkb | unless fedora is primary on afs02? | 19:53 |
clarkb | I confirm that I can't ssh, I get a host key and then not much further than that | 19:54 |
fungi | hung kernel tasks reported on the console, and no login prompt after a carriage return | 19:55 |
fungi | i think the vm hung | 19:55 |
fungi | i'll give it a reboot via the nova api | 19:55 |
clarkb | 2020-10-05 19:31:34 | Running vos release. <- thats the fedora mirror log which happens well after the problme starts and afs01 is primary | 19:55 |
fungi | yeah, if we want to backtrack from lastlog (assuming it's not been thoroughly rotated away), the hung kernel tasks started 3961321 seconds after boot | 19:56 |
fungi | in two bursts, a second appeared at 3961441 second | 19:57 |
fungi | openstack server reboot --hard issued just now | 19:58 |
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fungi | if those hung kernel tasks were logged today, then i expect to see them in the lastlog for 2020-08-20 | 19:59 |
fungi | i worry that may be prior to wtmp.1 | 19:59 |
clarkb | server seems up now | 20:00 |
clarkb | and docs load | 20:01 |
fungi | larsks: docs.o.o should be back up for you now? | 20:01 |
fungi | yeah, just checked myself | 20:01 |
fungi | once static.o.o realized the fileserver was down hard it switched to the redundant one, i thinl | 20:01 |
clarkb | the fedora release detected failure and said it could not be completed | 20:02 |
fungi | afs was not designed for our modern clouds where virtual machines just become hung and don't fall entirely offline | 20:02 |
clarkb | I expect that means all the locks were returned and it will try again in a bit | 20:02 |
fungi | yeah, hopefully we don't need to clean up any replicas which were mid-release, | 20:02 |
fungi | but we should probably look to be sure | 20:03 |
fungi | i can ssh into afs02.dwf now | 20:03 |
fungi | wtmp.1 begins Thu Sep 3 21:10:10 2020 | 20:03 |
fungi | fooey | 20:03 |
fungi | anyway, past experience has indicated that if we see hung kernel tasks on the console, those tend to be irrecoverable and coincide with when the server ceased to be responsive | 20:04 |
fungi | cacti places the time of death between 18:50 and 18:55 utc | 20:06 |
fungi | #status log hard rebooted afs03.dfw.o.o to address a server hung condition which seems to have started at roughly 18:50 utc | 20:06 |
openstackstatus | fungi: finished logging | 20:06 |
* fungi sighs | 20:07 | |
fungi | #status log CORRECTION: hard rebooted afs02.dfw.o.o to address a server hung condition which seems to have started at roughly 18:50 utc | 20:07 |
openstackstatus | fungi: finished logging | 20:07 |
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larsks | fungi: works for me now, yes. Thanks! | 20:20 |
fungi | larsks: awesome. sorry about... clouds | 20:20 |
larsks | fungi: also...wow, afs, haven't come across that in years and years... :) | 20:23 |
fungi | you just don't run in the right circles, apparently ;) | 20:25 |
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