Monday, 2016-03-07

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ducttape_has anyone noticed glance image uploads are really slow?  or perhaps there is a better / good way to upload glance images?    I'm seeing 45 minutes to upload an image, and I can download that image in less than 15 minutes15:27
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haukebrunoducttape_, it depends a lot on your infrastructure, for example your network connection and your underlaying storage15:36
ducttape_I have not see our storage or infrastructure impacting anything else quite like how slow glance image uploads are, which is what is weird15:38
haukebrunoducttape_, you should start pointing out things using tools like atop.15:40
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haukebrunoducttape_, do you upload from horizon or cli?15:42
ducttape_this is all cli15:42
ducttape_we are trying to get a process to keep the same image available / replicated in a multi region setup15:43
haukebrunoducttape_, so you are uploading between regions? are they l3 seperated? could be networking related here. we never experienced _that_ slow uploads. 45min sounds way to much for a standard cloud image15:44
ducttape_so there is a WAN path this takes, which could be it.  it's weird15:45
haukebrunoducttape_, could you fire a simple iperf from source to destination and vice versa?15:47
ducttape_yeah, that can handle about 2.5 Gbps iirc15:48
haukebrunowell, sounds good.15:48
ducttape_yeah, that is not too bad15:48
haukebrunoso I would start checking both sides while running atop when the upload runs. It could point out that there is a stressed disk or cpu, NIC whatever15:49
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ducttape_could be, but I doubt it.  We have multiple nodes running glance api, all fairly large machines.  multiple ceph osd / mon etc nodes....  we have a lot of capacity to handle a single XX GB image15:50
ducttape_100GB should be a trivial15:50
haukebrunoducttape_, somethings it ist just one small little thing, that causes that much trouble. you need to start investigating anyhow :p15:53
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klindgrenIs your glance handling ssl traffic? OR did you offload that to something else?  Also I would look at tcpdump on one of the session and see what your window size is.  Its possible that you will need to increaces it.  Though usually an iperf would show you that.15:59
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ducttape_I just saw iperf running at 3-4 Gbps.... using default options.   we have tuned window sizes already.  it really is a glance specific thing, I am pretty sure16:05
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mfischjlk: do you have any workflows you've used to connect heat & ansible?17:56
mfischfor example, setting up a galera cluster in heat really sucks and is hacky17:56
mfischso I'd like heat to do the infra work and then have ansible take over17:57
jlkmfisch: nothing good, I think we've mostly just used ansible to call heat client via command, and then figured out what the new system contact points were and touched them with ansible like normal.17:59
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mfischhow did you build the inventory?17:59
jlkwe haven't made it a priority, we only really do VM bring up for infra as part of our CI runs.17:59
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jlkI think our CI scripts are doing something ugly to do multiple ansible-playbook runs and creating a static inventory based on heat results18:00
jlkit's not a good model.18:00
mfischI'm tasked with making a model webapp to show our customers18:00
mfischso I'm doing etherpad, with load balanced front/backends18:00
mfischit features gems like this18:01
mfisch            if [ "$ip$" == "10.10.0.4" ]; then18:01
mfisch          sudo /etc/init.d/mysql bootstrap-pxc18:01
mfischso that only works in a clean tenant ;)18:01
jlkyeah.18:02
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mfischyeah. about sums it up18:06
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mfischI was going to ping you on twitter but I can't ever remember your name there18:07
jlk@iamjkeating18:07
jlkit's really hard18:07
mfischI always just type a name in when I cant remember but you're name is like Cloud Bike Dev Ops or something18:08
mfischah Cloud Peddler18:08
jlkah18:09
jlkthat18:09
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mgagneany suggestion for a tool to automate or script image testing? Like you build a new image and you wish to test some stuff within the image to make sure it supports a minimal set of feature21:48
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xavpaicemgagne: someone here has something which migtht be of interest - I've asked if he can pop in here22:01
flwangmgagne: hi22:01
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flwangthis is flwang from Glance team22:02
mgagnexavpaice: I just found some test suites for Ubuntu. They have a framework able to run any scripts. But some tests are simply written in Python with paramiko22:02
mgagneflwang: hi!22:02
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flwangmgagne: we have a script for updating our public images automatically22:02
mgagneflwang: yea, that's the next step in my quest =)22:03
flwangthe script will download images data and create image in glance, then create instance based on it, setup network, and ping it22:03
flwangto verify if the image is really workable22:03
flwangso maybe you can leverage the script to put more features on that22:03
flwangxavpaice: mgagne: i'm wondering if there is a repo under openstack big tent for operators22:04
flwangxavpaice: you know, just like the repo we have : openstack-ops-tool22:04
flwangso that operators can contribute script?22:05
mgagneyea, uploading image and booting would be common code to all images I guess. from there, maybe the tool could provide some helpers to ease SSH client creation and such22:05
mgagnebecause I think it wouldn't be that hard22:05
mgagnejust a lot of code ahead =)22:06
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flwangmgagne: yep, my script does have the SSH part, IIRC, anyway, it's easy to add22:06
mgagnethinking about it, writing the tests in python wouldn't be that hard22:07
mgagneI guess I'm just lazy on Monday and tomorrow I'll have a framework written anyway :D22:07
xavpaiceflwang: git@github.com:openstack/osops-tools-contrib.git22:08
flwangxavpaice: wow, our tenant script has been there :)22:10
xavpaiceyeah, I'm sure we discussed putting that there22:11
flwangxavpaice: yep, maybe we should contribute the image.py back as well22:11
xavpaice+122:12
xavpaiceI'd like to put most of our stuff there22:12
flwangmgagne: are you still interested in our image script?22:13
mgagneflwang: maybe. talking to you gave me ideas to start =)22:14
flwangmgagne: ok, i will upstream our code to osops-tools-contrib22:14
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