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https://issues.apache.org/jira/browse/LIVY-724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yiheng Wang updated LIVY-724:
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Description:
In this JIRA, we want to support recover a session from the state store to Livy
server memory when the session is used.
In the current single node recover, when a server restarts, it will recover the
sessions in the state store in a batch.
In the multi-active scenario, we propose a new session recovery solution. When
a server leaves the cluster, its sessions will be transferred to other servers.
Instead of transferring them in a batch, each Livy session gets recovered when
a request for it arrives. It will save the session switch time.
> Support Session Lazy Recover
>
>
> Key: LIVY-724
> URL: https://issues.apache.org/jira/browse/LIVY-724
> Project: Livy
> Issue Type: Sub-task
>Reporter: Yiheng Wang
>Priority: Major
>
> In this JIRA, we want to support recover a session from the state store to
> Livy server memory when the session is used.
> In the current single node recover, when a server restarts, it will recover
> the sessions in the state store in a batch.
> In the multi-active scenario, we propose a new session recovery solution.
> When a server leaves the cluster, its sessions will be transferred to other
> servers. Instead of transferring them in a batch, each Livy session gets
> recovered when a request for it arrives. It will save the session switch time.
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