[jira] [Reopened] (LUCENE-5948) Improve RateLimiters Initialization semantics

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-5948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir reopened LUCENE-5948:
---------------------------------
      Assignee: Robert Muir

reopen for backport

> Improve RateLimiters Initialization semantics  
> -----------------------------------------------
>
>                 Key: LUCENE-5948
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5948
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Varun Thacker
>            Assignee: Robert Muir
>             Fix For: 5.0, Trunk
>
>         Attachments: LUCENE-5948.patch
>
>
> I was working on SOLR-6485 when I realized that the first time pause is called even if we write a lot of bytes pause doesn't work correctly because in SimpleRateLimiter.pause() lastNS is 0 and startNS is always more than targetNS.
> If we remove the following line from TestRateLimiter.testPause() then the test fails - 
> {code}
> limiter.pause(2);//init
> {code}
> Should we do one of the following ? 
> 1. Initialize lastNS in the ctor {code}lastNS = System.nanoTime();{code}
> 2. Add a method saying start() which does the same 



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