Stephen, AFAIK there is no such public option to wait for all the cluster caches are fully rebalanced. Please, take a look here [1]. This is an internal method which returns the future (will be completed when cache group rebalance is finished) and it's not exposed to any Ignites public API, so I doubt your goal is achievable out of the box. But I think this method can be accessed via some custom Ignite plugin.
Also, I thought that the rolling upgrade is a part of GridGain and not supported by pure Apache Ignite, Am I missing something? What the automation tool do you use for such purpose? [1] https://github.com/Mmuzaf/ignite/blob/master/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCachePreloader.java#L128 On Thu, 27 Jun 2019 at 18:18, Stephen Darlington <stephen.darling...@gridgain.com> wrote: > > Hi, > > I’m looking to be able to automate a rolling update of Ignite, that is, take > nodes down one at a time until the whole cluster has the new configuration. > > I have my caches configured with at least one backup. What’s the easiest way > of checking that the cluster has finished rebalancing all the caches before > moving onto the next node? > > I can see the information in CacheMetrics and it seems to be exported to JMX, > but it feels like there should be a way to see this in a command line tool. > Not figured out how to see it in “control” or “ignitevisor”. Am I missing > something? > > Thanks in advance. > > Regards, > Stephen >
