Hadoop 维护总结

1. 启动 history

./sbin/mrjobhistorydaemon.sh start historyserver

./sbin/yarn-daemon.sh  start proxyserver

2, sqoop 导出到 mysql

./sqoop export --connect jdbc:mysql://192.168.1.161:3306/search --username naliworld --password password! --table iphone_kw_return_result --export-dir hdfs://tracker.test.lan:8020/user/hive/warehouse/search.db/tmp_zh_iphone_total_kw_res --input-fields-terminated-by '01' --input-null-string '\N' --input-null-non-string '\N'