1:導入命令

1) bin/sqoop import --connect jdbc:mysql://10.x.x.x:3306/lir --username dss --password xxx123 --table bb_month --hive-import?
2) bin/sqoop import --connect jdbc:mysql://10.x.x.x:3306/lir --table bb_month --username dss -P --hive-import -- --default-character-set=utf-8

第二個命令需要輸入密碼

上門的命令都需要先在hive中創建表bb_month,否則hive無此表，創建語句：

CREATE TABLE bb_month (ID INT,Fcom STRING,dept1 STRING,dept2 STRING,Inputdate STRING,year INT,month INT,quarter INT,Requestid FLOAT,StandPrice FLOAT,FactPrice FLOAT,HospPrice FLOAT,RatePrice FLOAT ) ;

[jifeng@jifeng02 sqoop]$ bin/sqoop import --connect jdbc:mysql://10.X.X.X:3306/lir --username dss --password XXX123 --table bb_month --hive-import Warning: /home/jifeng/sqoop/../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation. Warning: /home/jifeng/sqoop/../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. Warning: $HADOOP_HOME is deprecated.14/09/08 18:02:52 INFO sqoop.Sqoop: Running Sqoop version: 1.4.5 14/09/08 18:02:52 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 14/09/08 18:02:52 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override 14/09/08 18:02:52 INFO tool.BaseSqoopTool: delimiters with --fields-terminated-by, etc. 14/09/08 18:02:52 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 14/09/08 18:02:52 INFO tool.CodeGenTool: Beginning code generation 14/09/08 18:02:52 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `bb_month` AS t LIMIT 1 14/09/08 18:02:52 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `bb_month` AS t LIMIT 1 14/09/08 18:02:52 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/jifeng/hadoop/hadoop-1.2.1 注: /tmp/sqoop-jifeng/compile/0e2ce2c74924b539ae5ff77b453d708e/bb_month.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。 14/09/08 18:02:53 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-jifeng/compile/0e2ce2c74924b539ae5ff77b453d708e/bb_month.jar 14/09/08 18:02:53 WARN manager.MySQLManager: It looks like you are importing from mysql. 14/09/08 18:02:53 WARN manager.MySQLManager: This transfer can be faster! Use the --direct 14/09/08 18:02:53 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path. 14/09/08 18:02:53 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql) 14/09/08 18:02:53 INFO mapreduce.ImportJobBase: Beginning import of bb_month 14/09/08 18:02:53 INFO db.DBInputFormat: Using read commited transaction isolation 14/09/08 18:02:53 INFO db.DataDrivenDBInputFormat: BoundingValsQuery: SELECT MIN(`ID`), MAX(`ID`) FROM `bb_month` 14/09/08 18:02:54 INFO mapred.JobClient: Running job: job_201409072150_0009 14/09/08 18:02:55 INFO mapred.JobClient: map 0% reduce 0% 14/09/08 18:03:02 INFO mapred.JobClient: map 1% reduce 0% 14/09/08 18:03:03 INFO mapred.JobClient: map 3% reduce 0% 14/09/08 18:03:05 INFO mapred.JobClient: map 6% reduce 0% 14/09/08 18:03:06 INFO mapred.JobClient: map 7% reduce 0% 14/09/08 18:03:07 INFO mapred.JobClient: map 9% reduce 0% 14/09/08 18:03:08 INFO mapred.JobClient: map 10% reduce 0% 14/09/08 18:03:09 INFO mapred.JobClient: map 11% reduce 0% 14/09/08 18:03:11 INFO mapred.JobClient: map 14% reduce 0% 14/09/08 18:03:12 INFO mapred.JobClient: map 16% reduce 0% 14/09/08 18:03:14 INFO mapred.JobClient: map 19% reduce 0% 14/09/08 18:03:15 INFO mapred.JobClient: map 21% reduce 0% 14/09/08 18:03:16 INFO mapred.JobClient: map 22% reduce 0% 14/09/08 18:03:18 INFO mapred.JobClient: map 24% reduce 0% 14/09/08 18:03:19 INFO mapred.JobClient: map 26% reduce 0% 14/09/08 18:03:22 INFO mapred.JobClient: map 30% reduce 0% 14/09/08 18:03:23 INFO mapred.JobClient: map 31% reduce 0% 14/09/08 18:03:26 INFO mapred.JobClient: map 34% reduce 0% 14/09/08 18:03:27 INFO mapred.JobClient: map 35% reduce 0% 14/09/08 18:03:30 INFO mapred.JobClient: map 37% reduce 0% 14/09/08 18:03:31 INFO mapred.JobClient: map 39% reduce 0% 14/09/08 18:03:32 INFO mapred.JobClient: map 41% reduce 0% 14/09/08 18:03:34 INFO mapred.JobClient: map 43% reduce 0% 14/09/08 18:03:36 INFO mapred.JobClient: map 45% reduce 0% 14/09/08 18:03:39 INFO mapred.JobClient: map 47% reduce 0% 14/09/08 18:03:40 INFO mapred.JobClient: map 51% reduce 0% 14/09/08 18:03:43 INFO mapred.JobClient: map 53% reduce 0% 14/09/08 18:03:44 INFO mapred.JobClient: map 55% reduce 0% 14/09/08 18:03:46 INFO mapred.JobClient: map 57% reduce 0% 14/09/08 18:03:47 INFO mapred.JobClient: map 61% reduce 0% 14/09/08 18:03:50 INFO mapred.JobClient: map 63% reduce 0% 14/09/08 18:03:51 INFO mapred.JobClient: map 65% reduce 0% 14/09/08 18:03:54 INFO mapred.JobClient: map 68% reduce 0% 14/09/08 18:03:55 INFO mapred.JobClient: map 71% reduce 0% 14/09/08 18:03:58 INFO mapred.JobClient: map 73% reduce 0% 14/09/08 18:03:59 INFO mapred.JobClient: map 75% reduce 0% 14/09/08 18:04:02 INFO mapred.JobClient: map 79% reduce 0% 14/09/08 18:04:03 INFO mapred.JobClient: map 81% reduce 0% 14/09/08 18:04:05 INFO mapred.JobClient: map 83% reduce 0% 14/09/08 18:04:06 INFO mapred.JobClient: map 85% reduce 0% 14/09/08 18:04:09 INFO mapred.JobClient: map 88% reduce 0% 14/09/08 18:04:10 INFO mapred.JobClient: map 91% reduce 0% 14/09/08 18:04:13 INFO mapred.JobClient: map 93% reduce 0% 14/09/08 18:04:14 INFO mapred.JobClient: map 95% reduce 0% 14/09/08 18:04:17 INFO mapred.JobClient: map 100% reduce 0% 14/09/08 18:04:20 INFO mapred.JobClient: Job complete: job_201409072150_0009 14/09/08 18:04:20 INFO mapred.JobClient: Counters: 18 14/09/08 18:04:20 INFO mapred.JobClient: Job Counters 14/09/08 18:04:20 INFO mapred.JobClient: SLOTS_MILLIS_MAPS=460888 14/09/08 18:04:20 INFO mapred.JobClient: Total time spent by all reduces waiting after reserving slots (ms)=0 14/09/08 18:04:20 INFO mapred.JobClient: Total time spent by all maps waiting after reserving slots (ms)=0 14/09/08 18:04:20 INFO mapred.JobClient: Launched map tasks=103 14/09/08 18:04:20 INFO mapred.JobClient: SLOTS_MILLIS_REDUCES=3418 14/09/08 18:04:20 INFO mapred.JobClient: File Output Format Counters 14/09/08 18:04:20 INFO mapred.JobClient: Bytes Written=4238 14/09/08 18:04:20 INFO mapred.JobClient: FileSystemCounters 14/09/08 18:04:20 INFO mapred.JobClient: HDFS_BYTES_READ=10201 14/09/08 18:04:20 INFO mapred.JobClient: FILE_BYTES_WRITTEN=6884950 14/09/08 18:04:20 INFO mapred.JobClient: HDFS_BYTES_WRITTEN=4238 14/09/08 18:04:20 INFO mapred.JobClient: File Input Format Counters 14/09/08 18:04:20 INFO mapred.JobClient: Bytes Read=0 14/09/08 18:04:20 INFO mapred.JobClient: Map-Reduce Framework 14/09/08 18:04:20 INFO mapred.JobClient: Map input records=42 14/09/08 18:04:20 INFO mapred.JobClient: Physical memory (bytes) snapshot=4803080192 14/09/08 18:04:20 INFO mapred.JobClient: Spilled Records=0 14/09/08 18:04:20 INFO mapred.JobClient: CPU time spent (ms)=36910 14/09/08 18:04:20 INFO mapred.JobClient: Total committed heap usage (bytes)=1938554880 14/09/08 18:04:20 INFO mapred.JobClient: Virtual memory (bytes) snapshot=38168121344 14/09/08 18:04:20 INFO mapred.JobClient: Map output records=42 14/09/08 18:04:20 INFO mapred.JobClient: SPLIT_RAW_BYTES=10201 14/09/08 18:04:20 INFO mapreduce.ImportJobBase: Transferred 4.1387 KB in 86.9275 seconds (48.7533 bytes/sec) 14/09/08 18:04:20 INFO mapreduce.ImportJobBase: Retrieved 42 records. 14/09/08 18:04:20 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `bb_month` AS t LIMIT 1 14/09/08 18:04:20 WARN hive.TableDefWriter: Column Requestid had to be cast to a less precise type in Hive 14/09/08 18:04:20 WARN hive.TableDefWriter: Column StandPrice had to be cast to a less precise type in Hive 14/09/08 18:04:20 WARN hive.TableDefWriter: Column FactPrice had to be cast to a less precise type in Hive 14/09/08 18:04:20 WARN hive.TableDefWriter: Column HospPrice had to be cast to a less precise type in Hive 14/09/08 18:04:20 WARN hive.TableDefWriter: Column RatePrice had to be cast to a less precise type in Hive 14/09/08 18:04:20 INFO hive.HiveImport: Removing temporary files from import process: hdfs://jifeng01:9000/user/jifeng/bb_month/_logs 14/09/08 18:04:20 INFO hive.HiveImport: Loading uploaded data into Hive 14/09/08 18:04:21 INFO hive.HiveImport: 14/09/08 18:04:21 INFO hive.HiveImport: Logging initialized using configuration in jar:file:/home/jifeng/hadoop/hive-0.12.0-bin/lib/hive-common-0.12.0.jar!/hive-log4j.properties 14/09/08 18:04:25 INFO hive.HiveImport: OK 14/09/08 18:04:25 INFO hive.HiveImport: Time taken: 3.491 seconds 14/09/08 18:04:25 INFO hive.HiveImport: Loading data to table default.bb_month 14/09/08 18:04:25 INFO hive.HiveImport: Table default.bb_month stats: [num_partitions: 0, num_files: 202, num_rows: 0, total_size: 8476, raw_data_size: 0] 14/09/08 18:04:25 INFO hive.HiveImport: OK 14/09/08 18:04:25 INFO hive.HiveImport: Time taken: 0.59 seconds 14/09/08 18:04:25 INFO hive.HiveImport: Hive import complete. 14/09/08 18:04:25 INFO hive.HiveImport: Export directory is empty, removing it.
2: 增量導入命令

1) bin/sqoop import --connect jdbc:mysql://10.X.X.X:3306/lir --username dss --password xxx123 --table bb_month --hive-import --incremental append --check-column ID --last-value 714
2) bin/sqoop import --connect jdbc:mysql://10.X.X.X:3306/lir --table bb_month --username dss -P --hive-import --incremental append --check-column ID --last-value 714 -- --default-character-set=utf-8

[jifeng@jifeng02 sqoop]$ bin/sqoop import --connect jdbc:mysql://10.X.X.X:3306/lir --username dss --password xxx123 --table bb_month --hive-import --incremental append --check-column ID --last-value 714 Warning: /home/jifeng/sqoop/../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation. Warning: /home/jifeng/sqoop/../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. Warning: $HADOOP_HOME is deprecated.14/09/08 20:58:45 INFO sqoop.Sqoop: Running Sqoop version: 1.4.5 14/09/08 20:58:45 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 14/09/08 20:58:45 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override 14/09/08 20:58:45 INFO tool.BaseSqoopTool: delimiters with --fields-terminated-by, etc. 14/09/08 20:58:45 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 14/09/08 20:58:45 INFO tool.CodeGenTool: Beginning code generation 14/09/08 20:58:46 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `bb_month` AS t LIMIT 1 14/09/08 20:58:46 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `bb_month` AS t LIMIT 1 14/09/08 20:58:46 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/jifeng/hadoop/hadoop-1.2.1 注: /tmp/sqoop-jifeng/compile/5ce12899d2dc88a968a58234a928a423/bb_month.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。 14/09/08 20:58:46 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-jifeng/compile/5ce12899d2dc88a968a58234a928a423/bb_month.jar 14/09/08 20:58:47 INFO tool.ImportTool: Maximal id query for free form incremental import: SELECT MAX(`ID`) FROM bb_month 14/09/08 20:58:47 INFO tool.ImportTool: Incremental import based on column `ID` 14/09/08 20:58:47 INFO tool.ImportTool: Lower bound value: 714 14/09/08 20:58:47 INFO tool.ImportTool: Upper bound value: 715 14/09/08 20:58:47 WARN manager.MySQLManager: It looks like you are importing from mysql. 14/09/08 20:58:47 WARN manager.MySQLManager: This transfer can be faster! Use the --direct 14/09/08 20:58:47 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path. 14/09/08 20:58:47 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql) 14/09/08 20:58:47 INFO mapreduce.ImportJobBase: Beginning import of bb_month 14/09/08 20:58:47 INFO db.DBInputFormat: Using read commited transaction isolation 14/09/08 20:58:47 INFO db.DataDrivenDBInputFormat: BoundingValsQuery: SELECT MIN(`ID`), MAX(`ID`) FROM `bb_month` WHERE ( `ID` > 714 AND `ID` <= 715 ) 14/09/08 20:58:47 INFO mapred.JobClient: Running job: job_201409072150_0016 14/09/08 20:58:48 INFO mapred.JobClient: map 0% reduce 0% 14/09/08 20:58:56 INFO mapred.JobClient: map 100% reduce 0% 14/09/08 20:58:57 INFO mapred.JobClient: Job complete: job_201409072150_0016 14/09/08 20:58:57 INFO mapred.JobClient: Counters: 18 14/09/08 20:58:57 INFO mapred.JobClient: Job Counters 14/09/08 20:58:57 INFO mapred.JobClient: SLOTS_MILLIS_MAPS=8478 14/09/08 20:58:57 INFO mapred.JobClient: Total time spent by all reduces waiting after reserving slots (ms)=0 14/09/08 20:58:57 INFO mapred.JobClient: Total time spent by all maps waiting after reserving slots (ms)=0 14/09/08 20:58:57 INFO mapred.JobClient: Launched map tasks=1 14/09/08 20:58:57 INFO mapred.JobClient: SLOTS_MILLIS_REDUCES=0 14/09/08 20:58:57 INFO mapred.JobClient: File Output Format Counters 14/09/08 20:58:57 INFO mapred.JobClient: Bytes Written=78 14/09/08 20:58:57 INFO mapred.JobClient: FileSystemCounters 14/09/08 20:58:57 INFO mapred.JobClient: HDFS_BYTES_READ=103 14/09/08 20:58:57 INFO mapred.JobClient: FILE_BYTES_WRITTEN=69113 14/09/08 20:58:57 INFO mapred.JobClient: HDFS_BYTES_WRITTEN=78 14/09/08 20:58:57 INFO mapred.JobClient: File Input Format Counters 14/09/08 20:58:57 INFO mapred.JobClient: Bytes Read=0 14/09/08 20:58:57 INFO mapred.JobClient: Map-Reduce Framework 14/09/08 20:58:57 INFO mapred.JobClient: Map input records=1 14/09/08 20:58:57 INFO mapred.JobClient: Physical memory (bytes) snapshot=77537280 14/09/08 20:58:57 INFO mapred.JobClient: Spilled Records=0 14/09/08 20:58:57 INFO mapred.JobClient: CPU time spent (ms)=790 14/09/08 20:58:57 INFO mapred.JobClient: Total committed heap usage (bytes)=31916032 14/09/08 20:58:57 INFO mapred.JobClient: Virtual memory (bytes) snapshot=506822656 14/09/08 20:58:57 INFO mapred.JobClient: Map output records=1 14/09/08 20:58:57 INFO mapred.JobClient: SPLIT_RAW_BYTES=103 14/09/08 20:58:57 INFO mapreduce.ImportJobBase: Transferred 78 bytes in 10.5935 seconds (7.363 bytes/sec) 14/09/08 20:58:57 INFO mapreduce.ImportJobBase: Retrieved 1 records. 14/09/08 20:58:57 INFO util.AppendUtils: Creating missing output directory - bb_month 14/09/08 20:58:57 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `bb_month` AS t LIMIT 1 14/09/08 20:58:57 WARN hive.TableDefWriter: Column Requestid had to be cast to a less precise type in Hive 14/09/08 20:58:57 WARN hive.TableDefWriter: Column StandPrice had to be cast to a less precise type in Hive 14/09/08 20:58:57 WARN hive.TableDefWriter: Column FactPrice had to be cast to a less precise type in Hive 14/09/08 20:58:57 WARN hive.TableDefWriter: Column HospPrice had to be cast to a less precise type in Hive 14/09/08 20:58:57 WARN hive.TableDefWriter: Column RatePrice had to be cast to a less precise type in Hive 14/09/08 20:58:57 INFO hive.HiveImport: Removing temporary files from import process: hdfs://jifeng01:9000/user/jifeng/bb_month/_logs 14/09/08 20:58:57 INFO hive.HiveImport: Loading uploaded data into Hive 14/09/08 20:58:58 INFO hive.HiveImport: 14/09/08 20:58:58 INFO hive.HiveImport: Logging initialized using configuration in jar:file:/home/jifeng/hadoop/hive-0.12.0-bin/lib/hive-common-0.12.0.jar!/hive-log4j.properties 14/09/08 20:59:01 INFO hive.HiveImport: OK 14/09/08 20:59:01 INFO hive.HiveImport: Time taken: 3.076 seconds 14/09/08 20:59:01 INFO hive.HiveImport: Loading data to table default.bb_month 14/09/08 20:59:02 INFO hive.HiveImport: Table default.bb_month stats: [num_partitions: 0, num_files: 12, num_rows: 0, total_size: 4316, raw_data_size: 0] 14/09/08 20:59:02 INFO hive.HiveImport: OK 14/09/08 20:59:02 INFO hive.HiveImport: Time taken: 0.399 seconds 14/09/08 20:59:02 INFO hive.HiveImport: Hive import complete. 14/09/08 20:59:02 INFO hive.HiveImport: Export directory is empty, removing it. 14/09/08 20:59:02 INFO tool.ImportTool: Incremental import complete! To run another incremental import of all data following this import, supply the following arguments: 14/09/08 20:59:02 INFO tool.ImportTool: --incremental append 14/09/08 20:59:02 INFO tool.ImportTool: --check-column ID 14/09/08 20:59:02 INFO tool.ImportTool: --last-value 715 14/09/08 20:59:02 INFO tool.ImportTool: (Consider saving this with 'sqoop job --create') [jifeng@jifeng02 sqoop]$
hive中查看（顯示被刪除了數據）

hive> select * from bb_month; OK296 上海 null null 2014-02 2014 2 1 13365.0 2205348.5 876260.7 1727203.5 880151.5 714 長沙 null null 2014-03 2014 3 1 37582.0 5116978.5 3691360.2 4794782.0 3698047.8 Time taken: 0.057 seconds, Fetched: 42 row(s) hive> select * from bb_month; OK296 上海 null null 2014-02 2014 2 1 13365.0 2205348.5 876260.7 1727203.5 880151.5 715 廣州 null null 2014-04 2014 3 1 22.0 22.0 22.0 22.0 22.0 714 長沙 null null 2014-03 2014 3 1 37582.0 5116978.5 3691360.2 4794782.0 3698047.8 Time taken: 0.068 seconds, Fetched: 43 row(s) hive>

3：免創建表的導入方式：

bin/sqoop import --connect jdbc:mysql://10.6.x.x:3306/lir --username dss --password xxx123 --table DIM_DEPARTMENT --hive-import --create-hive-table -m 1

參數m:mapreduce的任務數

hive導出到mysql
bin/sqoop export --connect jdbc:mysql://10.6.x.x:3306/lir --username dss --password xx123 --table dep_info --export-dir /user/hive/warehouse/dim_department

http://sqoop.apache.org/docs/1.4.5/SqoopUserGuide.html#_importing_data_into_hive

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