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https://issues.apache.org/jira/browse/RATIS-337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo Nicholas Sze updated RATIS-337:
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Attachment: r337_20181007.patch
> In RaftServerImpl, leaderState/heartbeatMonitor may be accessed without
> proper null check
> -----------------------------------------------------------------------------------------
>
> Key: RATIS-337
> URL: https://issues.apache.org/jira/browse/RATIS-337
> Project: Ratis
> Issue Type: Bug
> Components: server
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Tsz Wo Nicholas Sze
> Priority: Major
> Attachments: r337_20181007.patch
>
>
> leaderState/heartbeatMonitor is declared as volatile. Some code like below
> won't work since leaderState may be set to null in between.
> {code:java}
> //RaftServerImpl.checkLeaderState(..)
> } else if (leaderState == null || !leaderState.isReady()) {
> {code}
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