HDFS-16898. Remove write lock for processCommandFromActor of DataNode to reduce impact on heartbeat.#5408

Hexiaoqiao merged 1 commit intoapache:branch-3.3apache/hadoop:branch-3.3from

hfutatzhanghb:branch-3.3-processCMDhfutatzhanghb/hadoop:branch-3.3-processCMDCopy head branch name to clipboard