hive load data from hdfs

Describe:Hive Table Pms.cross_sale_path is established with the date as the partition, the HDFs directory/user/pms/workspace/ouyangyewei/testusertrack/job1output/ The data on the Crosssale, written on the $yesterday partition of the tableTable structure:HIVE-E "Set Mapred.job.queue.name=pms;drop table if exists pms.cross_sale_path;create external table Pms.cross_sale_ Path (track_id string,track_time string

=flume_kafka# is serialized A1.sinks.k1.serializer.class=kafka.serializer.stringencoder # use a channel which buffers events in memorya1.channels.c1.type=memorya1.channels.c1.capacity = 100000a1.channels.c1.transactioncapacity = 1000# Bind The source and sink to the channela1.sources.r1.channels= c1a1.sinks.k1.channel=c1 start flume: As long as/home/hadoop/flumehomework/flumecode/flume_exec_ When there is data in the Test.txt, Flume will

Tags: exporting. NET size Data Conversion ref DIR username Nat tmpHive Summary (vii) hive four ways to import data (strongly recommended to see) Several methods of data export of Hive https://www.iteblog.com/archives/955 (strongly recommended to see) Import MySQL

master HBase Enterprise-level development and management• Ability to master pig Enterprise-level development and management• Ability to master hive Enterprise-level development and management• Ability to use Sqoop to freely convert data from traditional relational databases and HDFs• Ability to collect and manage distributed logs using Flume• Ability to master t

master HBase Enterprise-level development and management• Ability to master pig Enterprise-level development and management• Ability to master hive Enterprise-level development and management• Ability to use Sqoop to freely convert data from traditional relational databases and HDFs• Ability to collect and manage distributed logs using Flume• Ability to master t

the following statement directly into hive:Use Splitjson to extract and delimit data arraysCREATE EXTERNAL TABLE if not exists finance.awen_optd ( secid string, tradedate date, Optid string, Ticker string, secshortname string, exchangecd string, presettleprice double, precloseprice double, Openprice Double, highestprice double, lowestprice double, closeprice double, settlprice Double, Turnovervol double, turnovervalue double, openint

not EXISTS" + args.database); Print ("Building extension model ..."); Hivecontext.sql ("CREATE TABLE IF not EXISTS" + Args.database + "." + Tb_json_serde + "(" + Args.schema + ") row format SE Rde ' org.apache.hive.hcatalog.data.JsonSerDe ' location "+" ' "+ LoadPath +"/"); println ("CREATE TABLE IF not EXISTS" + Args.database + "." + TB + "AS-select" + ARGS.SCHEMA_TB + "from" + Args.databa Se + "." + Tb_json_serde + "lateral VIEW explode (" + Tb_json_serde + ".

First, using Sqoop to import data from MySQL into the hdfs/hive/hbaseIi. using Sqoop to export data from hdfs/hive/hbase to MySQL 2.3 NBSP; hbase data exported to MySQL There is no

1. Hive DatabaseWe look at the database information in the hive terminal, we can see that hive has a default database, and we also know that the hive database corresponds to a directory above the HDFs, then the default database defaults to which directory? We can see the inf

/hive/warehouse/data_w.db/seq_fdc_jplp --columns goal_ocityid,goal_issueid,compete_issueid,ncompete_rank --input-fields-terminated-by '\001' --input-lines-terminated-by '\n' Be sure to specify the-columns parameter. Otherwise, an error will be reported and the columns cannot be found.Usage:-columns Check whether data is imported successfully. ?sqoop eval --connect jdbc:oracle:thin:@localhost:p

Tags: Hadoop sqoopFirst, using Sqoop to import data from MySQL into the hdfs/hive/hbaseSecond, the use of Sqoop will be the data in the Hdfs/hive/hbaseExportto MySQL 2.3 NBSP; hbase data