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Posted to dev@kafka.apache.org by "Guozhang Wang (JIRA)" <ji...@apache.org> on 2016/02/01 23:18:39 UTC

[jira] [Created] (KAFKA-3183) Add metrics for persistent store caching layer

Guozhang Wang created KAFKA-3183:
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             Summary: Add metrics for persistent store caching layer
                 Key: KAFKA-3183
                 URL: https://issues.apache.org/jira/browse/KAFKA-3183
             Project: Kafka
          Issue Type: Sub-task
            Reporter: Guozhang Wang


We need to add the metrics collection such as cache hits / misses, cache size, dirty key size, etc for the RocksDBStore. However this may need to refactor the RocksDBStore a little bit since currently caching is not exposed to the MeteredKeyValueStore, and it uses an LRUCacheStore as the cache that does not keep the dirty key set.



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