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https://issues.apache.org/jira/browse/IGNITE-14394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Gidaspov updated IGNITE-14394:
-------------------------------------
Ignite Flags: Release Notes Required (was: Docs Required,Release Notes
Required)
> Baseline auto-adjustment does not happen when 2+ nodes join the cluster
> -----------------------------------------------------------------------
>
> Key: IGNITE-14394
> URL: https://issues.apache.org/jira/browse/IGNITE-14394
> Project: Ignite
> Issue Type: Bug
> Reporter: Vyacheslav Koptilin
> Assignee: Vyacheslav Koptilin
> Priority: Major
> Fix For: 2.11
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In the case of baseline topology autoadjustment is enabled and a few server
> nodes join the cluster the autoadjustment may not be triggered.
> Steps to reproduce:
> 1. start ignite cluster and enable baseline autoadjustment
> 2. start 2+ server nodes (in order to reproduce the issue, the corresponding
> exchange should be merged)
> 3. wait for baseline autoadjustment
> *RESOLUTION*
> The root cause of the issue relates to merging exchanges. Let's consider the
> following scenario:
> 1. 2 new nodes join the cluster
> 2. the first step triggers a call
> BaselineTopologyUpdater#triggerBaselineUpdate twice and creates the following
> baseline data objects:
> data1 - target topology version - X
> data2 - target topology version - X+1. This data object invalidates the
> previous one (data1)
> 3. in the case the exchanges are merged and the first data (data1)
> binds/listens to real {{GridDhtPartitionsExchangeFuture}} instead of
> affinityReadyFuture, see
> {{GridCachePartitionExchangeManager#affinityReadyFuture}} (data2 listens to
> affinityReadyFuture(X+1)), the implementation schedules data2 in the first
> place, and after that, it replaces data2 with data1 which is already
> invalidated at this point.
> The fix is quite obvious - we should not schedule baseline data instances
> that are related to "invalidated" target topology.
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