[GitHub] morningman opened a new issue #335: Add a new tablet repair framework for faster tablet balance and repair

[GitBox <gi...@apache.org>]

morningman opened a new issue #335: Add a new tablet repair framework for faster tablet balance and repair
URL: https://github.com/apache/incubator-doris/issues/335
 
 
   # Current problem
   
   The current tablet repair and balance is based on CloneChecker, which is a fixed scheduler daemon thread. It checks all tablets at fixed period, and try to repair at most `Config.clone_max_job_num` tablets in one round.
   
   1. It is very slow because it just run at a fix period even if there is no clone task running now.
   2. User specify the priority of tablet repair, which tablet may be repaired is just a random choice.
   3. No way to check the tablet repair progress.
   4. Heavy coupling with other routine job such as ALTER.
   
   The new tablet repair framework will solve there problem

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