Ambari界面Presto重啓報錯ERROR:presto_client:Error connecting to presto server at: localhost:8285

重啓失敗，實際上通過後臺命令/etc/init.d/presto status查看 是正在運行的 解決辦法： # cd /var/lib/ambari-agent/cache/stacks/HDP/2.6/services/PRESTO/package/scripts # vim presto_coordinator.py  註釋掉冒煙測試函數

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