Wednesday, 2016-12-21

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openstackgerritMatthew Oliver proposed openstack/swift: Split up tests for Concurrent Gets  https://review.openstack.org/28658900:30
mattoliverau^ fixed pep800:31
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timburkehttps://review.openstack.org/#/c/310075/ is really making me wish i'd gone further with https://review.openstack.org/#/c/357559/ :-( it'd be *so* useful to know that an object is an SLO during POST01:18
patchbotpatch 310075 - python-swiftclient - Expire segments when expiring large objects01:18
patchbotpatch 357559 - swift - Include object sysmeta in POST responses (MERGED)01:18
timburkei'm also still kinda unhappy that we codified the ability to change DLOs in the fallout of https://bugs.launchpad.net/swift/+bug/1612991 -- you POST to an object and you have no idea if you just orphaned a bunch of segments01:20
openstackLaunchpad bug 1612991 in OpenStack Object Storage (swift) "Post-as-copy does not allow a DLO manifest to be updated" [Critical,Fix released] - Assigned to Janie Richling (jrichli)01:20
openstackgerritpangliye proposed openstack/swift: Add a space to pass the check of pep8  https://review.openstack.org/41332201:28
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openstackgerritMerged openstack/swift: Remove duplicate setup code from test_tempurl.py  https://review.openstack.org/41073101:56
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openstackgerritTuan Luong-Anh proposed openstack/swift: Replace six iteration methods with standard ones  https://review.openstack.org/37534402:27
openstackgerritTony Breeds proposed openstack/python-swiftclient: Add Constraints support  https://review.openstack.org/41334802:29
kota_good morning02:46
mattoliveraukota_: morning03:03
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kota_mattoliverau: o/03:19
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charzhey, just a question for EC, if the object stored in cluster with ec ring and one drive is unmounted, then I try another upload to overwrite the object. Does the new fragment will store into handoff partition?04:49
charzokay, it seems like the object-server return a 507 error and the fragment won't go for handoff palce.04:50
kota_charz: it's different from my understanding04:51
kota_if we know the disk in the object-server unmounted, the object should be placed at a handoff device as well as replication04:52
kota_let me check the code04:52
charzkota_: reconstructor will do that? or proxy-server?04:52
kota_charz: proxy-sever04:52
charzI don't see proxy-server do a retry04:52
kota_charz: for now, reconstructor doesn't have the capability to go handoff.04:53
charzkota_: yeah, that's what i expected. It should take care by proxy-server.04:53
charzokay, it seems like a bug.04:54
kota_charz: basically, it should be generic used at both of repl/ec04:56
kota_https://github.com/openstack/swift/blob/master/swift/proxy/controllers/obj.py#L537-L55404:56
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charzthat's odd, first overwrite upload won't go handoff, but second one did.04:58
kota_it looks like we have the handling for INSUFFICIENT_STORAGE here, https://github.com/openstack/swift/blob/master/swift/proxy/controllers/obj.py#L1568-L156904:59
kota_it may need more info to reproduce...05:00
charzkota_: agree, I'll upload that. But I tested it on 2.9.0.05:02
kota_charz: ok, IIRC, we don't touch a lot around the swift/proxy/controllers/obj.py since 2.9.0 so I don't think you are worried about.05:04
charzkota_: k, got it.05:05
kota_charz: the big changes added before/after encryption release.05:05
kota_around there.05:05
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openstackgerritMerged openstack/pyeclib: Prevent division by zero in tests  https://review.openstack.org/41139406:21
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openstackgerritKota Tsuyuzaki proposed openstack/pyeclib: Add explicit info for immeasurable throughput  https://review.openstack.org/41344406:56
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openstackgerritMathias Bjoerkqvist proposed openstack/swift: Storing encryption root secret in Barbican  https://review.openstack.org/36487809:57
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acolestimburke: thanks for the fixup and merge12:22
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openstackgerritOpenStack Proposal Bot proposed openstack/swift: Updated from global requirements  https://review.openstack.org/8873615:33
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openstackgerritAlistair Coles proposed openstack/swift: Add test for configured reclaim_age being used  https://review.openstack.org/41031116:13
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notmynamegood morning16:36
acolesnotmyname: good morning!16:37
notmynameacoles: hey! I thought you were on holiday this week16:39
acolesI'm in and out. This is my last "proper" day in the office,16:40
notmynameah, gotcha16:40
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tdasilvaacoles: have a good break16:54
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acolestdasilva: thanks! I may overlap with you on Friday. things tend to shutdown early here on the last day before the holidays.17:50
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_david_cole_sohoWith the ratelimit middlware, I know it reliese heavily on memcached . Does a middleware only over talk to the memcached configred in the proxy-server.conf filter:cache section , or can it talk to the memcached of other proxy servers ?17:51
tdasilvaacoles: we are actually shutdown on friday17:51
_david_cole_soho*relies17:51
notmyname_david_cole_soho: it can talk to any memcache server in the pool17:52
notmynamealso, this implies that it's a good idea to have discrete memcache pools in a global cluster setup17:55
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-openstackstatus- NOTICE: Gerrit is being restarted to update its OpenID SSO configuration17:59
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_david_cole_sohonotmyname:  thanks . I was not aware of memcache pools, I will research that18:20
notmyname_david_cole_soho: so you can list more than one IP:port in that config line (or use memcache.conf. or is it memcached.conf?)18:20
notmynameand swift will build a pool out of them and balance requests across them18:21
_david_cole_sohonotmyname: Ah, okay, we have one IP per proxy-server.conf, the memcache instance on the same box. In the case we are not using a pool then I guess18:21
notmynamecorrect18:22
notmynamethe advantages of having a pool are supporting higher load and higher cache hit rates. the disadvantage is network connections to the memcache servers18:22
notmynameso if you only have a local instance, you'll have faster responses to cache hits, but you'll have fewer cache hits18:23
notmynamea simple way to configure it would be to have all proxies in each region running memcache and participating in a per-region pool18:23
notmynamememcache is used for ratelimiting, account and container stats, and token caching. since your load balancer probably chooses a random proxy for each request (instead of routing based on source IP or something)--which is how it probably should be done--then you can really get some good performance benefits with the shared cache18:25
notmynamehowever, be sure to raise the memcache connection limit (memcache_max_connections) as your cluster grows. that can really limit performance18:26
notmynamesee https://github.com/openstack/swift/blob/master/etc/memcache.conf-sample18:27
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claygweee osc!19:08
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MooingLemur3xOsc? :320:45
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mattoliverauMorning21:22
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notmynamehttp://lists.openstack.org/pipermail/openstack-dev/2016-December/109329.html looks to be a kickoff for moving all of openstack away from launchpad and to storyboard22:06
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mattoliveraunotmyname: looks like some interesting reading22:50
notmynameif you want interesting reading, check out https://snarky.ca/why-i-took-october-off-from-oss-volunteering/22:51
notmynameand possibly the comments on HN about it https://news.ycombinator.com/item?id=1323074722:52
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mattoliveraunotmyname: lol, thanks, now I'll be distracted for a while :P22:59
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