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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/06/22 11:42:10 UTC

[GitHub] [pulsar] Jason918 commented on issue #7723: Throttle the ledger rollover

Jason918 commented on issue #7723:
URL: https://github.com/apache/pulsar/issues/7723#issuecomment-865911237


   @codelipenghui HI, I'll be happy to participate. 
   Please check this more detailed solution.
   Add a new parameter `managedLedgerRolloverRateLimit`, rate limit the amount of rollover per second in one broker. This parameter can be set as 0 by default meaning no rate limiting .
   
   As `ManagedLedgerImpl#currentLedgerIsFull` is called before each ledger rollover, we can add a global rate limiter after that. Every ledger rollover can only happen when `currentLedgerIsFull()` and `rolloverRatelimiter.tryAcquire()` both return true.
   


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