Tuesday, 2015-01-06

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jlkIf y'all haven't noticed, this is kind of a big deal:  http://seclists.org/oss-sec/2015/q1/6401:03
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Rockygare there even any crickets here??  Enquiring minds want to know.22:20
mdormano/22:21
jlksome22:25
jlkI'm busy patching havana's glance22:25
jlkwooo directory traversal.22:25
mdormanhah22:27
mdormananybody have experiencing upgrading nova piecemeal?  so conductor on juno but compute on icehouse, specifically.  i’m running that now, but compute is complaining about rpc messages that are too new version.  i thought conductor was supposed ot down convert that stuff...22:27
jlkit does22:32
jlkso compute will get the message, complain because it's too new, and toss it over to conductor to downrev it22:32
jlkthen conductor will toss it back22:32
mdormanis there anything special needed to enable that?  all i see is “UnsupportedVersion: Endpoint does not support RPC version 3.33” and then it doesn’t do anything else22:34
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jlkand you have external conductor enabled?22:39
jlkhave you set upgrade_levels for compute?22:39
mdormanwhat do you mean by external conductor?22:39
jlkyour nova.conf file, what do you have for [conductor] ?22:39
mdormanok i’m sure i don’t have upgrade_levels in there, so that’s what i need.22:40
jlkmaybe22:40
jlktrying to find you the reference22:40
mdorman[conductor]22:40
mdormanworkers=4022:40
mdormanis all i ahve so far22:40
mdormanhttp://docs.openstack.org/openstack-ops/content/ops_upgrades_upgrade_levels.html yeah?22:40
jlkhttp://docs.openstack.org/juno/config-reference/content/list-of-compute-config-options.html#config_table_nova_conductor22:41
jlkok, so use_local defaults to false, in juno22:41
jlkyou're running icehouse?22:41
mdormani’m upgrading to juno from icehouse22:42
mdormanright now conductor is on juno, compute on icehouse22:42
jlkyeah, ok, still in icehouse use_local defaults to false.22:42
jlkso yeah external conductor is in play22:42
jlkas for upgrade levels, yeah you want compute=icehouse22:43
jlkthat /should/ resolve it22:43
mdormanwhat would be an example of an operation that would be done locally vs. go through conductor?  don’t all compute operations have to go through conductor (for access to db)?22:43
jlkthe local/remote thing is whether or not to use conductor code in-tree, or via a rabbit queue22:44
mdormangottcha22:44
jlknova-compute, has conductor code in it. But since it only has icehouse code in it, it can't handle anything newer22:44
jlkso using external conductor via the rabbit queue allows it to use a newer conductor than itself.22:45
mdormanso with use_local=True you basically skip conductor and go directly via rmq.  but then you have to guarantee that everything is always on the same version22:45
jlkall the nova services should have the [upgrade_levels] compute=icehouse22:45
jlkmdorman: yeah22:45
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mdormancool.  thanks for helping me understand22:47
jlklet me know if it works!  I was >.< close to having external conductor in production at Rackspace before I left22:48
Rockyg++22:48
mdormanyeah i went to the paris summit talk that i think was supposed to be you about doing no impact upgrades22:49
mdormanwhich is where i discovered this gem :)22:49
jlkyup!22:49
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