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Posted to notifications@ignite.apache.org by GitBox <gi...@apache.org> on 2021/11/16 06:52:22 UTC

[GitHub] [ignite] rpuch commented on pull request #2710: IGNITE-6334 Throttle writing threads during ongoing checkpoint

rpuch commented on pull request #2710:
URL: https://github.com/apache/ignite/pull/2710#issuecomment-969929264


   Just a note for future archeologists: https://issues.apache.org/jira/browse/IGNITE-6334 mentions Token Bucket algorithm, but in reality this is not what was implemented. In the Token Bucket algorithm, non-complying requests are delayed till they become complying (so, in our case, this would mean wait till the memory resources we protect become available). But in the code, a different approach is used: when the protected resources are scarse, slow down writer threads; in conjunction with a sufficient buffer size, this makes the protection reliable.


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