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https://issues.apache.org/jira/browse/IOTDB-613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tan xinyu reassigned IOTDB-613:
-------------------------------
Assignee: Tan xinyu
Labels: distributed (was: )
Remaining Estimate: 96h
Original Estimate: 96h
> [Distributed] Add the ability to persist and maintain currentterm for the
> raft node
> -----------------------------------------------------------------------------------
>
> Key: IOTDB-613
> URL: https://issues.apache.org/jira/browse/IOTDB-613
> Project: Apache IoTDB
> Issue Type: Improvement
> Components: Core/Cluster
> Reporter: Tan xinyu
> Assignee: Tan xinyu
> Priority: Major
> Labels: distributed
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> This is the quote from raft's paper.
> {quote}Raft servers must persist enough information to stable storage to
> survive server restarts safely. In particular, each server persists its
> current term and vote; this is necessary to prevent the server from voting
> twice in the same term or replacing log entries from a newer leader with
> those from a deposed leader. Each server also persists new log entries before
> they are counted towards the entries’ commitment; this prevents committed
> entries from being lost or “uncommitted” when servers restart.
> {quote}
> Therefore, the persistence term is important to ensure the security of the
> system.
> At present, because the log persistence has been done but not integrated, and
> the term persistence is also very necessary, so it will be the work of this
> issue to integrate the log persistence in the first place and implement the
> term persistence.
>
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