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https://issues.apache.org/jira/browse/RATIS-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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JiangHua Zhu reassigned RATIS-2171:
-----------------------------------
Assignee: JiangHua Zhu
> Safer initialization of TransactionContext#logIndexFuture
> ---------------------------------------------------------
>
> Key: RATIS-2171
> URL: https://issues.apache.org/jira/browse/RATIS-2171
> Project: Ratis
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.0.1
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Major
>
> In TransactionContextImpl(), logIndexFuture is initialized after
> setLogEntry(), which is very reasonable. However, in initLogEntry(), the
> assignment of logIndexFuture is arranged before setLogEntry(), which seems to
> be a flaw.
> TransactionContextImpl()：
> {code:java}
> TransactionContextImpl(RaftPeerRole serverRole, StateMachine stateMachine,
> LogEntryProto logEntry) {
> this(serverRole, null, stateMachine, logEntry.getStateMachineLogEntry());
> setLogEntry(logEntry);
> this.logIndexFuture.complete(logEntry.getIndex());
> }
> {code}
> initLogEntry()：
> {code:java}
> ......
> logIndexFuture.complete(index);
> return setLogEntry(LogProtoUtils.toLogEntryProto(stateMachineLogEntry,
> term, index));
> ......
> {code}
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