spark+carbondata使用

一、部署

下载源码编译

修改配置文件

注意： 1.1.1 不支持spark2.2 会报错。

二、启动：

spark-shell –jars carbonlib/carbondata_2.11-1.1.1-shade-hadoop2.7.2.jar

三、使用

3.1创建上下文

import org.apache.spark.sql.SparkSessionimport org.apache.spark.sql.CarbonSession._val carbon = SparkSession.builder().config(sc.getConf).getOrCreateCarbonSession("hdfs://127.0.0.1:9000/user/carbon/carbonstore")carbon.sql("show tables")

3.2创表

carbon.sql("CREATE TABLE dtwave_dev.carbon_tablename_new (name String, PhoneNumber String) STORED BY 'carbondata'")carbon.sql("insert into table dtwave_dev.carbon_tablename_new select * from dtwave_dev.spark_test")carbon.sql("select * from dtwave_dev.carbon_tablename_new").show

3.3 入库：

SQL:

CREATE TABLE tablename (name String, PhoneNumber String) STORED BY "carbondata"TBLPROPERTIES (...)LOAD DATA [LOCAL] INPATH 'folder path' [OVERWRITE] INTO TABLE tablename OPTIONS(...)INSERT INTO TABLE tablennme select_statement1 FROM table1;

DataFrame:

df.write.format(“carbondata").options("tableName", "t1")) .mode(SaveMode.Overwrite).save()

3.4 查询：

SELECT project_list FROM t1 WHERE cond_list
GROUP BY columns
ORDER BY columns

3.5 更新和删除

更新一列

UPDATE table1 ASET A.REVENUE = A.REVENUE - 10 WHERE A.PRODUCT = 'phone'Modify two columns in table1

更新两列

UPDATE table1 ASET (A.PRODUCT, A.REVENUE) =(SELECT PRODUCT, REVENUEFROM table2 BWHERE B.CITY = A.CITY AND B.BROKER = A.BROKER)WHERE A.DATE BETWEEN '2017-01-01' AND '2017-01-31'

3.6 插入

scala> carbon.sql("insert into table dtwave_dev.carbon_tablename_new select * from dtwave_dev.carbon_tablename_new")17/09/20 16:51:56 AUDIT rdd.CarbonDataRDDFactory$: [hulbdeMacBook-Air.local][hulb][Thread-1]Data load request has been received for table dtwave_dev.carbon_tablename_new17/09/20 16:51:56 WARN util.CarbonDataProcessorUtil: [Executor task launch worker-7][partitionID:new;queryID:164589401701872] sort scope is set to LOCAL_SORT17/09/20 16:51:56 WARN util.CarbonDataProcessorUtil: [Executor task launch worker-7][partitionID:new;queryID:164589401701872] batch sort size is set to 017/09/20 16:51:56 WARN util.CarbonDataProcessorUtil: [Executor task launch worker-7][partitionID:new;queryID:164589401701872] sort scope is set to LOCAL_SORT17/09/20 16:53:28 AUDIT rdd.CarbonDataRDDFactory$: [hulbdeMacBook-Air.local][hulb][Thread-1]Data load is successful for dtwave_dev.carbon_tablename_newcarbon.sql("select count(1) from dtwave_dev.carbon_tablename_new").show

3.6 删除

DELETE FROM table1 A WHERE A.CUSTOMERID = ‘123’scala>   carbon.sql("select * from dtwave_dev.carbon_tablename_new").show+----+-----------+|name|PhoneNumber|+----+-----------+|   1|          2||   3|          4|+----+-----------+scala> carbon.sql("delete from dtwave_dev.carbon_tablename_new a WHERE a.name='1'")17/09/20 14:51:43 AUDIT command.ProjectForDeleteCommand: [hulbdeMacBook-Air.local][hulb][Thread-1] Delete data request has been received for dtwave_dev.carbon_tablename_new.17/09/20 14:51:47 AUDIT command.deleteExecution$: [hulbdeMacBook-Air.local][hulb][Thread-1]Delete data operation is successful for dtwave_dev.carbon_tablename_newres1: org.apache.spark.sql.DataFrame = []scala> carbon.sql("select * from dtwave_dev.carbon_tablename_new").show+----+-----------+|name|PhoneNumber|+----+-----------+|   3|          4|+----+-----------+carbon.sql("update dtwave_dev.carbon_tablename_new A SET (A.name) = A.name WHERE A.PhoneNumber = '4'")carbon.sql("UPDATE dtwave_dev.carbon_tablename_new a SET (a.name, a.PhoneNumber) = ( SELECT '5' as name ,'6' from dtwave_dev.carbon_tablename_new b)")carbon.sql("UPDATE dtwave_dev.carbon_tablename_new a SET (a.name, a.PhoneNumber) = ( SELECT '5' as name ,'6' as PhoneNumber)")

四、HDFS对应的文件

4.1 HDFS 目录：

/user/carbon/carbonstore/dtwave_dev/carbon_tablename_newdrwxr-xr-x  hulb    supergroup  0 B 0   0 B Factdrwxr-xr-x  hulb    supergroup  0 B 0   0 B Metadata

4.2 数据文件

/user/carbon/carbonstore/dtwave_dev/carbon_tablename_new/Fact/Part0Permission  Owner   Group   Size    Replication Block Size  Namedrwxr-xr-x  hulb    supergroup  0 B 0   0 B Segment_0drwxr-xr-x  hulb    supergroup  0 B 0   0 B Segment_1

4.3 元数据文件

/user/carbon/carbonstore/dtwave_dev/carbon_tablename_new/MetadataGo!Permission  Owner   Group   Size    Replication Block Size  Name-rw-r--r--  hulb    supergroup  16 B    2   128 MB  62acf472-3574-434e-a53f-f45901dff949.dict-rw-r--r--  hulb    supergroup  11 B    2   128 MB  62acf472-3574-434e-a53f-f45901dff949.dictmeta-rw-r--r--  hulb    supergroup  11 B    2   128 MB  62acf472-3574-434e-a53f-f45901dff949_16.sortindex-rw-r--r--  hulb    supergroup  16 B    2   128 MB  c5c7949a-a437-41d1-8f47-a7a81e68c4ba.dict-rw-r--r--  hulb    supergroup  11 B    2   128 MB  c5c7949a-a437-41d1-8f47-a7a81e68c4ba.dictmeta-rw-r--r--  hulb    supergroup  11 B    2   128 MB  c5c7949a-a437-41d1-8f47-a7a81e68c4ba_16.sortindex-rw-r--r--  hulb    supergroup  387 B   2   128 MB  schema-rw-r--r--  hulb    supergroup  7.37 KB 2   128 MB  tablestatus-rw-r--r--  hulb    supergroup  243 B   2   128 MB  tableupdatestatus-1505890299461