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https://issues.apache.org/jira/browse/RATIS-477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16756760#comment-16756760
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Vladimir Rodionov edited comment on RATIS-477 at 1/31/19 1:21 AM:
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Keeping index in memory is very bad idea. If you will think about this, Josh.
was (Author: vrodionov):
Keeping index in memory is very bad idea.
> Improve LogStateMachine.processReadRequest()
> --------------------------------------------
>
> Key: RATIS-477
> URL: https://issues.apache.org/jira/browse/RATIS-477
> Project: Ratis
> Issue Type: Improvement
> Components: LogService
> Reporter: Josh Elser
> Assignee: Josh Elser
> Priority: Major
> Fix For: 0.4.0
>
>
> [~vrodionov] and [~rajeshbabu] were asking about this in RATIS-470. Can we
> improve the logic that reads through the "head" of the RaftLog to find the
> "LogService offset"?
> Vlad suggested:
> {quote}
> Josh, can we simplify this a little bit? Client gets Raft log ID one every
> append, for multi-get calls we can use this LogID (RAFT) as our start log ID
> to avoid iterating through all logs, then you can unwind log entries by using
> new logic, see above:
> int numRecordsInAppend = append.getDataCount();
> There is no need to iterate from the very beginning
> {quote}
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