Friday, 2014-12-05

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mfischWould anyone be interested in an ansible script to live-upgrade mysql from 5.5 -> 5.6?18:30
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mdormansounds like you would be :)18:32
jlkI already have one for percona xtradb setups18:36
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jlkhttps://github.com/blueboxgroup/ursula/commit/a8f748f19a701ec375b39cf5b3dad10c3e83ef9018:38
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mfischthat looks familiar18:44
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mfischjlk: I'm doing a few more things and a few less18:44
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mfischjlk: my upgrade only has a small window of outage, we upgrade 2 nodes and leave the last node up18:46
mfischwe go R/O18:46
mfischlet me push it somewhere18:46
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mfischour outage window is about 45 seconds with this method18:49
mfischhttps://github.com/matthewfischer/ansible18:49
mfischthere's 1-2 environment specific things lingering in there18:49
mfischI also did a predeploy with puppet to up the gcache size to 1G to reduce the likelihood of SSTs18:50
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jlkmfisch: so the way I'm doing mine there shouldn't be any outage19:04
jlkquorum should be maintained throughout19:04
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mfischyou're stopping all the dbs right at the top aren't you?19:05
mfischare you controlling where that runs by hostname then?19:05
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jlkcontrolling by hostname19:05
jlksee upgrade.yml19:06
mfischWe stop 2/3 and restart them after upgrading in RO mode19:06
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mfischthen we do the final node and we're down while its installing packages19:06
jlkstarts with db, and ...  hrm.19:06
jlksomething lost the serial setting19:06
jlkmaybe I lost a commit somewhere19:06
jlkit's supposed to do it serially, so stop one, bring it up in compat mode19:06
jlkstop the other bring it up in compat mode19:06
jlkoh right, yes this is hte old version19:06
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jlkmfisch: easier to look at https://github.com/blueboxgroup/ursula/blob/80cfabaa47a9f3a5becb88e1b76135e7d2de285f/upgrade.yml#L7    and  https://github.com/blueboxgroup/ursula/blob/80cfabaa47a9f3a5becb88e1b76135e7d2de285f/upgrade-db-cluster.yml19:08
jlkYou can also follow the tree into percona-arbitor19:08
jlkrole19:08
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mfischjlk: thanks I'll dig in a bit more later, got calls now :(20:04
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mdormanhas anyone been following the cells v2 stuff at all?21:22
mdormancurious which will be less painful… going to cells now under juno, then having to migrate to v2 on kilo…. or just waiting until kilo to do cells21:22
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