[GitHub] [accumulo] EdColeman commented on issue #1158: Require x tservers on start

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EdColeman commented on issue #1158: Require x tservers on start
URL: https://github.com/apache/accumulo/pull/1158#issuecomment-501862066
 
 
   Although this is closed (superseded with 2.0 version) testing this would still be valid (esp. if you're set-up).
   
   One condition that I really wanted to verify is that the blocking is happening correctly at the correct "start-up phase". I believe that the blocking is set to before the operations that perform table assignment and wal recovery, but the are threads that have been started and wanted to verify that they are not attempting work that really should also be blocked. 
   
   Two validate this I intended to (using your 6 servers as an example):
   
   1) Set required servers to 8 and a wait time of say 5 minutes - validate that master start up blocks and that no other activity that is assigning tablets occurs) until the time is reached.
   
   2) If time allowed, kill a few servers, set the threshold to 6.  start master, confirm blocking and no other assignments are occurring and then start the remaining servers and see that start-up then continues without issues.
   

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