hive要打開，另一邊root@hadoop-virtual-machine:/# hdfs dfs -ls /user/hive查看hdfs上都有些什麼，
然後把數據文件導入到hdfs上 ，root@hadoop-virtual-machine:/# hdfs dfs -put /opt/os.txt /user/hive/
hive那邊用show databases;查看當前都有什麼數據庫
然後創建表（此表是用來裝導入進來的數據的）
hive> create table os
> (pathid string,nodeweight int,pathweight string,nodeid int,shutdown string)
> ROW FORMAT DELIMITED FIELDS TERMINATED BY ' ' LINES TERMINATED BY '\n'
> STORED AS TEXTFILE;
要保證創建的表的格式要和數據文件中的格式一樣，例如字段間的間隔符是什麼行與行間的間隔符都要進行限定，
導入數據 hive> load data inpath '/user/hive/os.txt' into table os;
hive> select * from os;
OK
["12->22"] 9638
[52] 12
false
["19->78"] 11895
[51] 19
true
["16->17"] 8608
[58] 16
true
["16->17"] 10240
[54] 16
false
["12->22"] 9638
[52] 12
true
["2->22","2->3"] 9638
[52,44] 2
true
["19->78"] 11895
[51] 19
false
["16->17"] 8608
[58] 16
false
["16->17"] 10240
[54] 16
true
["1->65"] 13271
[53] 1
true
["11->17","11->13"] 10383
[50,56] 11
false
["6->21","6->22","6->19","6->7","6->44","6->10","6->9","6->11"]
5398 [54,58,54,55,50,59,55,55]
6 false
["0->52","0->91","0->53"] 9814
[52,58,54] 0
true
["1->65"] 13271
[53] 1
false
["11->17","11->13"] 10383
[50,56] 11
true
["6->21","6->22","6->19","6->7","6->44","6->10","6->9","6->11"]
5398 [54,58,54,55,50,59,55,55]
6 true
["0->52","0->91","0->53"] 9814
[52,58,54] 0
false
Time taken: 0.114 seconds, Fetched: 17 row(s)
進來了
其實我在導入的時候下面顯示Loading data to table default.os
Failed with exception Unable to alter table. For direct MetaStore DB connections, we don't support retries at the client level.
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.MoveTask
但是之後我想查看一下表中到底有沒有數據，數據是導入進來的，但是爲什麼低下有failed那幾行我也不太清楚，如果有知道的可以告訴我，學習知識大家互相討論互相進步嘛