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Posted to issues@ignite.apache.org by "Sergey Uttsel (Jira)" <ji...@apache.org> on 2023/02/08 07:06:00 UTC

[jira] [Created] (IGNITE-18755) Empty data nodes list of a distribution zone.

Sergey Uttsel created IGNITE-18755:
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             Summary: Empty data nodes list of a distribution zone.
                 Key: IGNITE-18755
                 URL: https://issues.apache.org/jira/browse/IGNITE-18755
             Project: Ignite
          Issue Type: Improvement
            Reporter: Sergey Uttsel


h3. Motivation

In some cases list of data nodes for the distribution zone can be empty. For example when scale down timer is expired and removed all data nodes or there are no nodes  in the cluster which pass the node filter of the zone. It can leads to the data loss.

We need a proper solution to this problem as part of the improvement of the rebalance. But for now, we need to make a temp solution to this problem and not change the list of date nodes if this will lead to the empty list.
h3. Definition of Done

DistributionZoneManager doesn't save the list of date nodes to meta storage if it is empty.



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