将mysql数据导入hive方法实例

下面是从mysql将数据导入hive的实例。

–hive-import 表示导入到hive，–create-hive-table表示创建hive表。–hive-table指定hive的表名。

[zhouhh@Hadoop46 ~]$ sqoop import --connect jdbc:mysql://Hadoop48/toplists --verbose -m 1 --username root --hive-overwrite --direct --table award --hive-import --create-hive-table --hive-table mysql_award --fields-terminated-by 't' --lines-terminated-by 'n' --append

12/07/20 16:02:23 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset.
12/07/20 16:02:23 INFO tool.CodeGenTool: Beginning code generation
12/07/20 16:02:23 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `award` AS t LIMIT 1
12/07/20 16:02:24 INFO orm.CompilationManager: HADOOP_HOME is /home/zhouhh/hadoop-1.0.0/libexec/..
注: /tmp/sqoop-zhouhh/compile/2fe3efbc94924ad6391b948ef8f8254f/award.java使用或覆盖了已过时的 API。
注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。
12/07/20 16:02:25 ERROR orm.CompilationManager: Could not rename /tmp/sqoop-zhouhh/compile/2fe3efbc94924ad6391b948ef8f8254f/award.java to /home/zhouhh/./award.java
12/07/20 16:02:25 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-zhouhh/compile/2fe3efbc94924ad6391b948ef8f8254f/award.jar
12/07/20 16:02:25 INFO manager.DirectMySQLManager: Beginning mysqldump fast path import
12/07/20 16:02:25 INFO mapreduce.ImportJobBase: Beginning import of award
12/07/20 16:02:27 INFO mapred.JobClient: Running job: job_201207191159_0322
12/07/20 16:02:28 INFO mapred.JobClient:  map 0% reduce 0%
12/07/20 16:02:41 INFO mapred.JobClient:  map 100% reduce 0%
12/07/20 16:02:46 INFO mapred.JobClient: Job complete: job_201207191159_0322
12/07/20 16:02:46 INFO mapred.JobClient: Counters: 18
12/07/20 16:02:46 INFO mapred.JobClient:   Job Counters
12/07/20 16:02:46 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=12849
12/07/20 16:02:46 INFO mapred.JobClient:     Total time spent by all reduces waiting after reserving slots (ms)=0
12/07/20 16:02:46 INFO mapred.JobClient:     Total time spent by all maps waiting after reserving slots (ms)=0
12/07/20 16:02:46 INFO mapred.JobClient:     Launched map tasks=1
12/07/20 16:02:46 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=0
12/07/20 16:02:46 INFO mapred.JobClient:   File Output Format Counters
12/07/20 16:02:46 INFO mapred.JobClient:     Bytes Written=208
12/07/20 16:02:46 INFO mapred.JobClient:   FileSystemCounters
12/07/20 16:02:46 INFO mapred.JobClient:     HDFS_BYTES_READ=87
12/07/20 16:02:46 INFO mapred.JobClient:     FILE_BYTES_WRITTEN=30543
12/07/20 16:02:46 INFO mapred.JobClient:     HDFS_BYTES_WRITTEN=208
12/07/20 16:02:46 INFO mapred.JobClient:   File Input Format Counters
12/07/20 16:02:46 INFO mapred.JobClient:     Bytes Read=0
12/07/20 16:02:46 INFO mapred.JobClient:   Map-Reduce Framework
12/07/20 16:02:46 INFO mapred.JobClient:     Map input records=1
12/07/20 16:02:46 INFO mapred.JobClient:     Physical memory (bytes) snapshot=78295040
12/07/20 16:02:46 INFO mapred.JobClient:     Spilled Records=0
12/07/20 16:02:46 INFO mapred.JobClient:     CPU time spent (ms)=440
12/07/20 16:02:46 INFO mapred.JobClient:     Total committed heap usage (bytes)=56623104
12/07/20 16:02:46 INFO mapred.JobClient:     Virtual memory (bytes) snapshot=901132288
12/07/20 16:02:46 INFO mapred.JobClient:     Map output records=44
12/07/20 16:02:46 INFO mapred.JobClient:     SPLIT_RAW_BYTES=87
12/07/20 16:02:46 INFO mapreduce.ImportJobBase: Transferred 208 bytes in 20.349 seconds (10.2216 bytes/sec)
12/07/20 16:02:46 INFO mapreduce.ImportJobBase: Retrieved 44 records.
12/07/20 16:02:46 INFO util.AppendUtils: Creating missing output directory - award
12/07/20 16:02:46 INFO hive.HiveImport: Removing temporary files from import process: award/_logs
12/07/20 16:02:46 INFO hive.HiveImport: Loading uploaded data into Hive
12/07/20 16:02:46 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `award` AS t LIMIT 1
12/07/20 16:02:48 INFO hive.HiveImport: WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
12/07/20 16:02:48 INFO hive.HiveImport: Logging initialized using configuration in jar:file:/home/zhouhh/hive-0.8.1/lib/hive-common-0.8.1.jar!/hive-log4j.properties
12/07/20 16:02:48 INFO hive.HiveImport: Hive history file=/home/zhouhh/hive-0.8.1/logs/hive_job_log_zhouhh_201207201602_1448253330.txt
12/07/20 16:02:53 INFO hive.HiveImport: OK
12/07/20 16:02:53 INFO hive.HiveImport: Time taken: 4.322 seconds
12/07/20 16:02:53 INFO hive.HiveImport: Loading data to table default.mysql_award
12/07/20 16:02:53 INFO hive.HiveImport: Deleted hdfs://Hadoop46:9200/user/hive/warehouse/mysql_award
12/07/20 16:02:53 INFO hive.HiveImport: OK
12/07/20 16:02:53 INFO hive.HiveImport: Time taken: 0.28 seconds
12/07/20 16:02:53 INFO hive.HiveImport: Hive import complete.

到hive中查询，已经成功导入数据

OK
2012-04-27 06:55:00:402713629   5947    433203828       2       4027102 402713629       1001    NULL    715878221 杀破天A ios
2012-04-27 06:55:00:406788559   778     433203930       19      4017780 406788559       1001    1       13835155880       亲牛牛旦旦      android
Time taken: 0.368 seconds

hive>由于基于utf8，所以没有遇到乱码问题。

补充：数据库,mysql教程

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