[jira] [Created] (HDFS-17339) BPServiceActor should skip cacheReport when one blockPool does not have CacheBlock on this DataNode

["lei w (Jira)" <ji...@apache.org>]

lei w created HDFS-17339:
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             Summary: BPServiceActor should skip cacheReport when one blockPool does not have CacheBlock on this DataNode
                 Key: HDFS-17339
                 URL: https://issues.apache.org/jira/browse/HDFS-17339
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: lei w


Now, DataNode will cacheReport to all NameNode when CacheCapacitySize is not zero. But sometimes, not all NameNodes have CacheBlock on this DataNode. So BPServiceActor should skip cacheReport when one blockPool does not have CacheBlock on this DataNode. If so, the NameNode will reduce unnecessary lock contention



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