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https://issues.apache.org/jira/browse/CURATOR-257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14729750#comment-14729750
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Martin Serrano commented on CURATOR-257:
----------------------------------------

I'm happy to chase it down.  Save your efforts for the high-value stuff.

> Thread.sleep in TestingZooKeeperMain.blockUntilStarted is costly for unit 
> tests
> -------------------------------------------------------------------------------
>
>                 Key: CURATOR-257
>                 URL: https://issues.apache.org/jira/browse/CURATOR-257
>             Project: Apache Curator
>          Issue Type: Improvement
>          Components: Tests
>            Reporter: Martin Serrano
>            Priority: Minor
>
> The {{TestingZooKeeperMain.blockUntilStarted()}} contains a 
> {{Thread.sleep(1000)}} call.  In a large battery of unit level tests (which 
> are otherwise quick and depend on curator service discovery) this time adds 
> up.
> Recent communication from JZ regarding the code:
> {quote}
> As I recall, it takes some time for the server to start up and this was a 
> hack to make sure it’s ready.  However, I no longer remember the details. Do 
> tests work with the timeout removed?
> {quote}
> We are in the midst of running our battery of tests to see if removal of this 
> sleep call causes any issues.   Our set of tests starts and stops the testing 
> server a few hundred times within the same process, so I think it will show 
> any such issues within a few runs.  If no issues appear (and the curator 
> tests pass of course) I will post a pull request.  
> A sleep of this sort is unreliable to ensure startup anyway.  While it may be 
> very unlikely for the server not to be up after 1 second, I've found with 
> similar approaches that these types of solutions will still fail once it a 
> while, leading to odd and hard to reproduce test failures.



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