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https://issues.apache.org/jira/browse/IGNITE-17880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Pavlov updated IGNITE-17880:
-----------------------------------
Labels: ise (was: )
> Topology version must be extended with topology epoch
> -----------------------------------------------------
>
> Key: IGNITE-17880
> URL: https://issues.apache.org/jira/browse/IGNITE-17880
> Project: Ignite
> Issue Type: Sub-task
> Reporter: Anton Vinogradov
> Priority: Major
> Labels: ise
>
> Epoch must be presented as a timestamp and version pair.
> Epoch timestamp must represent epoch start time.
> Epoch version must be incremented each time when topology version changed
> from 0 to 1 (when the cluster started or restarted).
> Each epoch version decrease or invariance on join must be logged as a warning.
> Epoch (version and timestamp) must be logged at every topology version change.
> This will
> - help to determine how many times the cluster was restarted (and make it
> easier to determine when)
> - checks that the part of the cluster which was restarted several times as a
> standalone cluster will never join the rest of the cluster with the lower
> epoch (check some segmentation and management problems)
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