[GitHub] [incubator-kvrocks] git-hulk commented on issue #1235: Inconsistent error "-Can't write to slot being migrated which is in write forbidden phase"

["git-hulk (via GitHub)" <gi...@apache.org>]

git-hulk commented on issue #1235:
URL: https://github.com/apache/incubator-kvrocks/issues/1235#issuecomment-1408839068

   @moonsphere Thanks for your detailed explanation, I can get your point now.
   
   > forbidden_slot_ looks like an "optimism lock"
   
   Yes, you're right. We thought it was acceptable to forbid writing in a short time which mainly depends on `migrate-sequence-gap`(default is 10000 sequences). I'm not sure how long this error happens in your test case. Generally, we expected it should be <= 1s.
   
   > I guess some existed proxy(for example PegaDB proxy？) maybe can right handle this error (pending the request and wakeup when migrate command finished?)
   
   AFAIK, PegaDB didn't have the proxy to handle this error. Is that right? @ShooterIT @caipengbo @shangxiaoxiong 
   
   


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