Friday, 2015-08-28

claygis list(itertools.islice(<generator>, X)) the best way to put X things from a generator into a thing that will support __getitem__ ???00:00
claygtorgomatic: timburke: ^00:00
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openstackgerritMerged openstack/python-swiftclient: Reduce memory usage for download/delete and add --no-shuffle option to st_download  https://review.openstack.org/13033900:48
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claygyay!00:56
openstackgerritMerged openstack/swift: Restrict PyECLib version to 1.0.7  https://review.openstack.org/21405400:57
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openstackgerritClay Gerrard proposed openstack/swift: Fix invalid frag_index header in ssync_sender when reverting EC tombstones  https://review.openstack.org/21783001:07
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openstackgerritClay Gerrard proposed openstack/swift: Fix purge for tombstone only REVERT job  https://review.openstack.org/21802301:24
openstackgerritClay Gerrard proposed openstack/swift: Fix purge for tombstone only REVERT job  https://review.openstack.org/21802301:26
openstackgerritOpenStack Proposal Bot proposed openstack/swift: Updated from global requirements  https://review.openstack.org/17434301:29
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openstackgerritNakagawa Masaaki proposed openstack/swift: Remove duplicate X-Backend-Storage-Policy-Index key  https://review.openstack.org/21806903:01
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openstackgerritClay Gerrard proposed openstack/swift: Make ssync_sender send valid chunked requests  https://review.openstack.org/21807803:56
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openstackgerritClay Gerrard proposed openstack/swift: EC GET path: require fragments to be of same set  https://review.openstack.org/21218704:13
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claygis it quiet tonight?  is there like a holiday or something?04:23
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mattoliveraunah, I'm just lost in pivot based sharding :)04:31
mattoliveraunothing like a Friday arvo brain work out :P04:32
* notmyname is watching dr who04:32
mattoliveraunotmyname: nice :)04:32
* mattoliverau has added some 301 redirects to the container server so async pendings and container updates from the object servers will always work re: sharding (and modifying other parts as an attempt not to flood a cluster with too many requests when thar be sharded containers).04:35
mattoliverauI'll have all this written up in a SPEC for y'all to flame me with.. good thing it's still winter :P04:36
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claygmattoliverau: did redbo give you some good ideas while you were there?04:43
mattoliverauclayg: he gave me some good ideas while at hackathon :P04:44
mattoliverauclayg: I had a good time hanging with cloudfiles in SAT. But not as much sharding talk as I'd like happened :)04:44
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openstackgerritNakagawa Masaaki proposed openstack/swift: Remove duplicate X-Backend-Storage-Policy-Index key  https://review.openstack.org/21806906:54
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openstackgerritHisashi Osanai proposed openstack/swift: Add functional test for access control (PUT) with Keystone  https://review.openstack.org/20241108:09
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openstackgerritchenhuayi proposed openstack/swift: change deprecated assertEquals to assertEqual  https://review.openstack.org/21819210:27
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openstackgerritOpenStack Proposal Bot proposed openstack/python-swiftclient: Updated from global requirements  https://review.openstack.org/8925013:17
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openstackgerritOpenStack Proposal Bot proposed openstack/swift: Updated from global requirements  https://review.openstack.org/8873613:18
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timburkeclayg: on the islice thing: yeah, that seems reasonable. i can't think of a better way, anyway16:04
openstackgerritchenhuayi proposed openstack/swift: change deprecated assertEquals to assertEqual  https://review.openstack.org/21819216:08
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itlinuxhello all18:18
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itlinuxquestion on data exchange between two zones if they are on a different cluster (two openstack nodes) what are the consern, how can this be achived if possible tks18:20
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claygtorgomatic: so I was looking at that eventlet patch for the ChunkReadError18:30
torgomaticclayg: cool18:31
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claygtorgomatic: at first I was like - why do we need an exception!? when a request with a content-length disconnects all you get is ''!  (but then I remembered how you find the *normal* end of a chunked-transfer - doh!)18:31
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openstackgerritClay Gerrard proposed openstack/swift: Make ssync_sender send valid chunked requests  https://review.openstack.org/21807818:39
hrouAnyone tried running https://github.com/ceph/s3-tests (s3 compatibility tests) on swift3 ?18:44
timburkehrou: yes; i think there were in the neighborhood of 100 failures when i last ran it18:45
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timburkemostly to do with versioning or acls18:45
hroutimburke, thanks !   I'll give it ago and share the results just to see the status as of now.18:45
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timburkehrou: there are some config options you'll likely want to tweak. my best runs have had dns_compliant_bucket_names = false and s3_acl = true18:48
hroutimburke: thanks!  I'll keep that in mind, would it be worthwhile maintaining the results somewhere ?  btw I was told we recently ran it against S3 it self and it was 97% clean : )18:49
hroutimburke:  That 3% is maybe settings or them not maintaining it as fast as amazon makes changes.18:50
timburkehrou: i know there are some tests that rely on ceph extensions. look for @attr('fails_on_aws')18:52
hroutimburke: Ah that could explain it as well, thanks!18:53
timburkehrou: i like the idea of maintaining the results history, but i'm not sure where that should live offhand18:53
hroutimburke:  Oh no worries lets do this, someone asked for the results here so I'll get those and after I'll share them and we can discuss that18:53
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brianclineare there any known plans around additional uses for the x-account-status header?19:45
brianclineother than the 'deleted' state that triggers a 410 Gone response19:45
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claygbriancline: I've not heard anything - do you have any specific thoughts?20:02
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shriHey all… Does Swift only write logs to syslog or does it also write to STDOUT?21:05
claygshri: you can get it to write to stderr (sort of) - but mostly just syslog yeah21:08
shriI don't want it to.21:09
shri:-)21:09
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shriFrom what I see, only swift services starting/stopping is going to stdout/stderr. Log messages from functionality, including errors go only to syslog.21:10
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shriIs that correct and expected behavior?21:10
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notmynamepeluse: still around?21:26
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claygshri: it might spit out something before it full daemonizes - but most of the output to stdout is from swift-init - everything goes to syslog - which is the correct and expected behavior21:35
shriawesome! Thanks clayg21:36
claygshri: why?  what's better than syslog!  (rsyslog, syslog-ng, whichever you prefer, it's easy to configure things to go to the files you want -> http://docs.openstack.org/developer/swift/development_saio.html?highlight=syslog#optional-setting-up-rsyslog-for-individual-logging)21:37
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shriwait.. I wanted Swift to log to syslog and not stdout/stderr. And that's what it does. So .. in short.. I'm happy! :-)21:40
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claygshri: love it!21:43
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minwoobclayg: Are you aware of a way to disable the reconstructor entirely, on one of the nodes? (That way would be better than deleting all the fragments on that node to avoid racing with a partner's reconstructor).21:49
minwoobclayg: Utilizing method 2 above seems worse than a coin toss.21:50
claygminwoob: most of the time in probetests all of the background/consistency-engine processes are disabled unless you start them explicitly with a manager - and when you do that most of the time you pass it a config number to start a specific nodes reconstrcutor21:50
claygyesterday we were talking about the issue where a single reconstrcutor daemon might have two devices - and the test is only interested in running the reconstructor over one of them21:51
claygit'd be sexy if somehow the manager in once mode could pass extra args to the daemon's - but that's not a hting currently - so the best you can do is either a) artificially ruin the data on the nodes other device that the test doesn't want to interfere or b) plumb the check_path mount checking through the reconstrcutor so that the test can "disable_device(other_device_on_the_same_node)21:52
claygminwoob: have you been able to consistently find/detect the other device on the same node that you want to run the reconstructor on?  Have you been able to find the "config_number(node)" helper that lets you run the reconstructor on just a single node?21:54
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minwoobclayg: I have not been doing that. If I interpret correctly, I should artificially ruin the other device so that the reconstructor will spend trying to reconstruct it rather than the fragment of interest.21:57
minwoobtime*21:57
claygminwoob: i forget what the test is trying to do21:58
minwoobclayg: Let me pull up config_number(node). One sec.21:59
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claygminwoob: undoubtable you want to run the reconstructor on a single node to assert the behavior of the reconstructer under the state you put the system into21:59
claygminwoob: additionally you should be aware that even running a single nodes reconstructor can race with another device on that same node - but you can work around that in the test21:59
openstackgerritJonathan Hinson proposed openstack/swift: Automatic refresh of memcache config settings  https://review.openstack.org/21849022:00
clayg^ whoa!22:00
notmynamejlhinson: cool22:00
notmynameclayg: back in austin I asked him to take a look at that22:00
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jlhinsonnotmyname: clayg: :D22:01
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notmynamejlhinson: you'll need to update the sample config too22:02
notmynamejlhinson: add the config variable with the default value, and comment out the line (ie the same pattern in the rest of the sample config)22:03
claygjlhinson: is there a lp bug # you can add as Closes-Bug #<XXX> in the commit message to?22:03
jlhinsonnotmyname: thanks, I didn't think of that22:04
claygjlhinson: notmyname: thanks for knocking that one off - the tests look great!22:04
jlhinsonclayg: no, I don't think so22:04
notmynamejlhinson: also, it's good to update the docs too (http://docs.openstack.org/developer/swift/deployment_guide.html)22:04
notmynameI don't think there's a bug filed. it was something that came up int he ops session in vancouver22:04
* clayg remembers someone should probably -1 the handoff mode change and tell me update the docs :\22:04
claygnotmyname: yeah i remember it in vancouver - some of those made it into bugs tho (e.g. handoffs_first should warn)22:05
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notmynamejlhinson: for bonus points, also document it in the man page22:06
claygnotmyname: no one knows how to compile the man pages tho!22:07
claygbtorch where are you!22:07
notmynameheh22:07
jlhinsonnotmyname: okay, I need to start making a list22:07
claygjlhinson: you'd think we'd just put in gerrit for you - but we're basically needy babies22:07
jrichlilol22:07
notmynamejlhinson: sample configs, deployment guide, man page  <-- places where configs are documented22:08
claygjlhinson: ^ see jrichli knows22:08
jrichli:-)22:09
jlhinsonhaha22:09
jlhinsonnotmyname: thanks!22:09
notmynamejlhinson: thanks for working on it22:09
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claygjlhinson: +1 thanks!22:09
jlhinsonnotmyname: clayg: happy to help22:09
notmynamejlhinson: I'm glad your paperwork went through ;-)22:11
jrichli+!22:11
jrichli+122:11
jlhinsonbetter late than never22:11
minwoobjlhinson: +122:11
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minwoobclayg: You mentioned that a reconstructor can still race with two devices (on that same node). How is this a race condition? The fragment has been moved to its (left) partner, so it shouldn't make any difference what the reconstructor does on the original primary.22:14
claygminwoob: hrmm.... are you on skype by chance?22:15
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openstackgerritJonathan Hinson proposed openstack/swift: Automatic refresh of memcache config settings  https://review.openstack.org/21849022:17
minwoobclayg: It's on my phone. Video chat doesn't work. Should I call you?22:18
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notmynamejust got a note from a customer saying they're going 5x faster with their Swift cluster than they were getting from Isilon23:02
notmynameway to go team swift!23:02
wbhubernotmyname: +123:02
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notmynametdasilva: arount?23:14
notmynamearound, even23:14
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notmynameok. so versioned writes upgrade path. add the middleware. don't remove the container server option or all existing versioned containers will be turned off23:58
notmynameif you remove the container servers setting allow_versions, then you must reenable versioning on the existing containers that are marked as versioned23:59

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