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https://issues.apache.org/jira/browse/IGNITE-2708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15209795#comment-15209795
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Ryan Zhao commented on IGNITE-2708:
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Completely agree.
> Need to validate that SPIs are started only once
> ------------------------------------------------
>
> Key: IGNITE-2708
> URL: https://issues.apache.org/jira/browse/IGNITE-2708
> Project: Ignite
> Issue Type: Improvement
> Components: general
> Reporter: Valentin Kulichenko
> Assignee: Ryan Zhao
> Labels: newbie, usability
>
> User forum discussion:
> http://apache-ignite-users.70518.x6.nabble.com/Ignite-instance-hangs-during-restart-in-client-mode-td3101.html
> If one uses the same instance of {{IgniteConfiguration}} more than once, it
> doesn't work because SPIs have lifecycle and can be started only once.
> Currently this causes hang on start which is counterintuitive.
> We should add a validation step to {{GridSpiAdapter}} that will check that
> the SPI was never started before. Its {{spiStart()}} method should set some
> flag there or throw exception if it has already been set. All internal SPI
> implementations should be changed to call {{super.spiStart()}} as first
> statement.
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