Hi Thomas, did you move the nodes to default to groupA ?
If nodes belong to multiple groups, it's the expected behavior. Union of groups is not a good setup as you can have slight difference. That's why you have the cluster:group-move/set. Regards JB On 01/25/2018 10:21 AM, Thomas Draier wrote: > Hi, > > We have been trying to use cellar groups for our cluster deployments. The > idea was to be able to deploy one bundle to only a subset of nodes, but > actually we did not manage to make it work. > > We created one single group, say groupA that contains 2 nodes, in addition > to the default group, which contain all nodes. Both groups use the > "cluster" configuration (pull / push), bundles can be handled by any group > (no whitelist/blacklist), and no local listener is configured. > > Basically, when we deploy a module on groupA, the module is correctly > installed on all nodes of this group, and everything goes fine. However, if > a sync is done on the default group, the bundle will be immediately > uninstalled, as the "pull" operation will see this bundle as local only > (it's not in default group) and will uninstall it. > > On the other hand, if we deploy a module on default group, it's correctly > installed everywhere, but the next sync of groupA will uninstall the bundle > from the 2 nodes that it owns. > > Since sync are done automatically quite often, including at startup, some > bundles can get unexpectedly uninstalled at any time. At startup, since all > groups are syncing in a random order - the last group to sync will "win", > so will reinstall bundles that were just uninstalled by the previous sync - > but bundles only installed on other groups will be removed. > > We were thinking of different possible fixes for handling that ( maybe > changing the sync, checking that the bundle is not part of any cluster > group before uninstalling it or changing its state ), but it's actually not > quite clear what is the expected behaviour and how it is supposed to work. > Is there anything wrong in the way we are using groups ? > > Thomas > -- Jean-Baptiste Onofré [email protected] http://blog.nanthrax.net Talend - http://www.talend.com
