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https://issues.apache.org/jira/browse/IGNITE-13577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17222097#comment-17222097
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Ivan Daschinskiy commented on IGNITE-13577:
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Cache (Restarts) 1 is broken in master.
> Add support to graceful shutdown for ZookeeperDiscoverySpi
> ----------------------------------------------------------
>
> Key: IGNITE-13577
> URL: https://issues.apache.org/jira/browse/IGNITE-13577
> Project: Ignite
> Issue Type: Improvement
> Reporter: Ivan Daschinskiy
> Assignee: Ivan Daschinskiy
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Proposed design:
> *LN* -- node that performs graceful shutdown
> *CRD* -- Leader (coordinator) of Ignite cluster
> *N* -- Other nodes of Ignite cluster.
> # *LN* create EPHEMERAL *latch* znode with path /<root>/nl/<node_id> and set
> watcher on it
> # *LN* delete own znode in /<root>/n as usual.
> # *LN* blocks with timeout stop until *latch* exists.
> # *CRD* receives notification and check if exists *latch* for this node
> # *CRD* generate NODE_LEFT event with flag fail=false, otherwise fail=true
> # *N* acks events.
> # *CRD* on receiving all acks remove *latch* for leaving node if exists.
> # *LN* receives notification and proceed with node stop.
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