5ac7740896
Change the MemStore size accounting so we don't synchronize across three volatiles applying deltas. Instead: + Make MemStoreSize, a datastructure of our memstore size longs, immutable. + Undo MemStoreSizing being an instance of MemStoreSize; instead it has-a. + Make two MemStoreSizing implementations; one thread-safe, the other not. + Let all memory sizing longs run independent, untied by synchronize (Huaxiang and Anoop suggestion) using atomiclongs. + Review all use of MemStoreSizing. Many are single-threaded and do not need to be synchronized; use the non-thread safe counter. TODO: Use this technique accounting at the global level too. |
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