anuengineer commented on issue #1589: HDDS-2244. Use new ReadWrite lock in OzoneManager. URL: https://github.com/apache/hadoop/pull/1589#issuecomment-539237587 > Right now ActiveLock creates ReadWrite Lock with non-fair mode. Do you mean, we want to create the RWLOCK with an option of fair mode. If my understanding is wrong, could you let me know what additional things need to be implemented? When you use a Reader writer lock, there is a question of fairness. Where as exclusive locks are first come first serve. > > And also this work is mainly to improve read performance workloads, as now with current approach of exclusive lock all reads are serialized. I am afraid this gives so much importance to Reads that you will have your writes getting stalled completely.
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