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| paddy_m | I am having wierd issues with an ebs-backed ami running ubuntu 10.10, eventually /dev/xvdb goes to 100% cpu utilization with no actual I/O | 15:43 |
|---|---|---|
| paddy_m | what is /dev/xvdb it doesn't show up in fstab or "df -h " | 15:45 |
| kiall | paddy_m, thats just the disk, same as /dev/sda etc | 15:54 |
| kiall | and not showing in fstab / df -h just means it hasnt been mounted ... | 15:56 |
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| paddy_m | how does it go to 100% i/o util with no read or write requests, and no read or write kbps | 16:01 |
| kiall | honestly cant tell you that, how are you sure the CPU usage is related to that disk? | 16:03 |
| kiall | (and not another disk.. aka a mounted one!) | 16:03 |
| paddy_m | cpu usage is low, iowait is high | 16:04 |
| paddy_m | the machine locks up, and I can't login | 16:05 |
| kiall | paddy_m, sorry back and forth from my desk ;) .. could it simply be a EC2 issue? | 16:16 |
| kiall | humm AWS status page doesnt show any issues.. probably isnt an EC2 issue then | 16:17 |
| paddy_m | I don't think so, this has happened on multiple instances over multiple days | 16:29 |
| paddy_m | we fire up the machine, it starts processing, and then after an hour or so, it ocks hard like this | 16:29 |
| kiall | humm .. honestly never seen anything like it before (except with EC2 issues) | 16:29 |
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| DeaCon | just wondering what happens when mutiple user open the same file , and save at differnt times | 16:45 |
| kiall | DeaCon, the last one to save will overwrite the one before... not sure how thats a #ubuntu-cloud question tho ;) | 16:47 |
| DeaCon | so one would not get the info saved then | 16:47 |
| DeaCon | or can you both open files at the same time | 16:48 |
| kiall | exactly - just as with any normal operating system and FS .. | 16:48 |
| kiall | unless your talking about something cloud specific here .. | 16:48 |
| DeaCon | well can you get 2 systems to work on the same file at the same time | 16:52 |
| DeaCon | if differnt locations | 16:52 |
| kiall | of course... | 16:52 |
| DeaCon | ok i need to read more i guess | 16:53 |
| kiall | Honestly .. I still have no idea what your trying to do ;) Im guessing its got nothing to do with cloud services? | 16:54 |
| kiall | Just standard file sharing ? | 16:54 |
| DeaCon | im trying to open the same file and not lose info when they are saved | 16:54 |
| kiall | where is the file stored? | 16:55 |
| DeaCon | on my cloud | 16:55 |
| kiall | Which is .. S3? EC2? something else? | 16:55 |
| DeaCon | ok no idea im learning sorry | 16:55 |
| kiall | what do you mean on "on your cloud" then? what services / software are you using? | 16:56 |
| DeaCon | ubuntu one cloud | 16:56 |
| kiall | aha .. okay ;) Now im starting to get you! | 16:57 |
| DeaCon | sorry | 16:57 |
| kiall | (BTW lead with that sort of detail next time ;)) | 16:57 |
| DeaCon | ok will do | 16:57 |
| kiall | As far as I know, Ubuntu One will, if you open the same file twice on 2x PC's, then save on PC1, then save on PC2 - PC2 changes will be saved, and PC1's lost | 16:58 |
| DeaCon | ok great thx | 16:59 |
| kiall | np | 16:59 |
| kiall | DeaCon, on and for UbuntuOne stuff, you'll probably get better answers in #ubuntuone .. | 17:01 |
| kiall | oh and* | 17:01 |
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| cpbtklogic | Has there been a change in libvirtd since 10.04 LTS launch that makes specifying the disk type on domain definition a requirement? | 20:40 |
| cpbtklogic | I have XML files that used to work without problems (in libvirt on 10.04 LTS. | 20:40 |
| cpbtklogic | Now, I have to explicitly state the disk type... before, it used to identify that they were qcow2. Now, everything seems to be set to 'raw' | 20:41 |
| flaccid | cpbtklogic: see the man page and check the package versions you have been using. if that is the case, then i assume that is the case.. | 21:16 |
| cpbtklogic | Hi flaccid... I looked through man pages and changelog... but couldn't see anything overtly stating 'gotta specify type now'. I'll look again. | 21:17 |
| cpbtklogic | If I can't find anything, I might post it to launchpad and let package maintainers figure out if it should be classified a bug or if it is a feature. | 21:17 |
| flaccid | well regardless, if you have to specify it, then i guess you have to. | 21:17 |
| flaccid | cpbtklogic: you might want to go upstream and check first, http://libvirt.org/remote.html | 21:18 |
| cpbtklogic | yeah... that's my take on it too flaccid. However, if there are less aware users out there the files that used to work would now fail to define machines in really weird ways. | 21:18 |
| cpbtklogic | It looks to start and run fine... it is just the BIOS can't see a legit disk if you don't specify the format. | 21:19 |
| flaccid | cpbtklogic: you can check the upstream versions, http://libvirt.org/downloads.html | 21:20 |
| cpbtklogic | yes... thanks flaccid. Will do. | 21:20 |
| flaccid | what package is this in, i don't see it? http://packages.ubuntu.com/search?keywords=libvirtd&searchon=names&suite=all§ion=all | 21:20 |
| cpbtklogic | I think it is virsh. | 21:27 |
| cpbtklogic | libvirt-bin | 21:27 |
| cpbtklogic | http://changelogs.ubuntu.com/changelogs/pool/main/libv/libvirt/libvirt_0.7.5-5ubuntu27.7/changelog | 21:28 |
| cpbtklogic | Actually... you know what flaccid... You just made me find it. | 21:28 |
| cpbtklogic | "SECURITY UPDATE" ... fix multiple issues with disk format for backing stores. | 21:28 |
| cpbtklogic | I think I was looking at the wrong version's changelog earlier. | 21:30 |
| cpbtklogic | I'm going to look up that CVE and see what it is all about. See what it changed, that may very well explain the change in functionality I'm seeing. | 21:31 |
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