zookeeper啓動報：Starting zookeeper ... already running as process 2293.

啓動完服務器後，啓動zooleeper的時候，提示這個：Starting zookeeper … already running as process 2293. 百度了下，說的是zookeeper非正常關閉，導致啓動起不來， 解決辦法：用命令rm zookeeper-server.pid 刪除zookeeper-server.pid文件，然後重新啓動就好了 zookeeper-server.pi

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