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https://issues.apache.org/jira/browse/IGNITE-9913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16947637#comment-16947637
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Anton Vinogradov commented on IGNITE-9913:
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Alexey Goncharuk,
1. Seems, I've got a situation, please check the understanding.
Prepared Txs can be located at backup nodes having partitions state from:
{{[state == MOVING || state == OWNING || state == RENTING]}}
So, we have to cover all these cases.
For example, we should repair all partitions with non-finished rebalance
(moving), correct?
So, {{Set<Integer> failedPrimaries =
aff.primaryPartitions(fut.exchangeId().eventNode().id(), aff.lastVersion());}}
is a correct calculation, but
{{Set<Integer> locBackups =
aff.backupPartitions(fut.sharedContext().localNodeId(), aff.lastVersion());}}
should be replaced with dht.localPartitions() usage?
> Prevent data updates blocking in case of backup BLT server node leave
> ---------------------------------------------------------------------
>
> Key: IGNITE-9913
> URL: https://issues.apache.org/jira/browse/IGNITE-9913
> Project: Ignite
> Issue Type: Improvement
> Components: general
> Reporter: Ivan Rakov
> Assignee: Anton Vinogradov
> Priority: Major
> Fix For: 2.8
>
> Attachments: 9913_yardstick.png, master_yardstick.png
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Ignite cluster performs distributed partition map exchange when any server
> node leaves or joins the topology.
> Distributed PME blocks all updates and may take a long time. If all
> partitions are assigned according to the baseline topology and server node
> leaves, there's no actual need to perform distributed PME: every cluster node
> is able to recalculate new affinity assigments and partition states locally.
> If we'll implement such lightweight PME and handle mapping and lock requests
> on new topology version correctly, updates won't be stopped (except updates
> of partitions that lost their primary copy).
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