將mysql數據導入hive方法實例

2024-07-24 12:37:41

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live是一個不錯的數據庫管理工具,下面我來介紹把mysql數據導入hive方法,有需要了解的同學可參考.

下面是從mysql將數據導入hive的實例.

–hive-import 表示導入到hive,–create-hive-table表示創建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使用或覆蓋了已過時的 API.

注:有關詳細信息,請使用 -Xlint:deprecation 重新編譯.

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中查詢,已經成功導入數據,代碼如下:

hive> select * from mysql_award;

OK

2012-04-27 06:55:00:402713629   5947    433203828       2       4027102 402713629       1001    NULL    715878221 內容內容A ios

2012-04-27 06:55:00:406788559   778     433203930       19      4017780 406788559       1001    1       13835155880       親牛牛旦旦      android

Time taken: 0.368 seconds  --Vevb.com