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admin6 | Hi team, I’d like to reduce the number of zone of my EC cluster from 6 to 4 zones. I’m still not shure how to process and if that’s fully supported by swift. I can’t find much experience like this on the web. Can I gradually reduce the weight of the available storage in one zone while incresing the other zones, unitl there is no more nodes in the zone ? | 12:52 |
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DHE | unfortunately there isn't really a "set zone" command in the ring builder... that would be ideal because the rebalancer would be much more gentle on the data availability | 13:43 |
admin6 | DHE: You’r right, my question is more "will swift run correctly with zones with huge difference of size"? However this is not a very common usage to reduce the number of zones so it may not be usefull to have a "set zone" command. | 13:53 |
DHE | I'm more concerned that if you uproot all the servers in an EC cluster, it won't be able to find enough replicas to do the needed data reconstruction | 13:57 |
DHE | if you could do it gracefully then the ring builder will move partitions 1 server at a time per day (or whatever your settings are) giving the system the chance to move data around with minimal hassle | 13:58 |
admin6 | DHE: ok, thanks. I plan to do it gradually to give enough time for the replica to be moved. | 14:07 |
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openstackgerrit | Pete Zaitcev proposed openstack/swift master: py3: Port the acl, account_quotas, cname_lookup, container_sync https://review.openstack.org/618077 | 15:34 |
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