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Cloudera, BigData, Semantic IoT, Hadoop, NoSQL

Cloudera CDH/CDP 및 Hadoop EcoSystem, Semantic IoT등의 개발/운영 기술을 정리합니다. gooper@gooper.com로 문의 주세요.


1. hive table(file을 바라보고 있으며 hbase table(아래의 hbase_mytable)에 값을 넣기 위한 src table) 을  external로  table 생성

CREATE EXTERNAL TABLE IF NOT EXISTS external_file
     (
     FOO STRING,
     BAR STRING
     )
     COMMENT 'TEST TABLE OF EMP_IP_TABLE'
     ROW FORMAT DELIMITED FIELDS TERMINATED BY ','
     STORED AS TEXTFILE LOCATION '/data';

 

* /data에 들어 있는 파일 내용

hadoop@bigdata-host:~/hive/conf$ hadoop fs -cat /data/external_file.txt
a,b
a1,b1
a2,b2
a3,b3

2.hive table( hbase  table을 바라보는 테이블)생성

CREATE EXTERNAL TABLE hbase_mytable(table_id string, foo string, bar string)
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,cf:foo,cf:bar")
TBLPROPERTIES("hbase.table.name" = "mytable");

 

3. hive기동시 아래와 같이 jar를 포함해준다.

adoop@bigdata-host:~/hive/bin$ hive --auxpath /home/hadoop/hive/lib/hbase-0.94.6.1.jar,/home/hadoop/hive/lib/zookeeper-3.4.3.jar,/home/hadoop/hive/lib/hive-hbase-handler-0.11.0.jar,/home/hadoop/hive/lib/guava-11.0.2.jar,/home/hadoop/hive/lib/hive-contrib-0.11.0.jar -hiveconf hbase.master=localhost:60000

4. hive에 들어가서.. table을 생성한 후 hbase table에 입력 실행결과......

hive> insert into table hbase_mytable select foo, foo, bar from external_file;
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks is set to 0 since there's no reduce operator
Starting Job = job_201404111158_0008, Tracking URL = http://localhost:50030/jobdetails.jsp?jobid=job_201404111158_0008
Kill Command = /home/hadoop/hadoop-1.2.1/libexec/../bin/hadoop job  -kill job_201404111158_0008
Hadoop job information for Stage-0: number of mappers: 1; number of reducers: 0
2014-04-11 13:56:49,322 Stage-0 map = 0%,  reduce = 0%
2014-04-11 13:56:55,482 Stage-0 map = 100%,  reduce = 0%, Cumulative CPU 1.74 sec
2014-04-11 13:56:56,500 Stage-0 map = 100%,  reduce = 0%, Cumulative CPU 1.74 sec
2014-04-11 13:56:57,518 Stage-0 map = 100%,  reduce = 0%, Cumulative CPU 1.74 sec
2014-04-11 13:56:58,541 Stage-0 map = 100%,  reduce = 0%, Cumulative CPU 1.74 sec
2014-04-11 13:56:59,561 Stage-0 map = 100%,  reduce = 0%, Cumulative CPU 1.74 sec
2014-04-11 13:57:00,587 Stage-0 map = 100%,  reduce = 100%, Cumulative CPU 1.74 sec
MapReduce Total cumulative CPU time: 1 seconds 740 msec
Ended Job = job_201404111158_0008
4 Rows loaded to hbase_mytable
MapReduce Jobs Launched:
Job 0: Map: 1   Cumulative CPU: 1.74 sec   HDFS Read: 220 HDFS Write: 0 SUCCESS
Total MapReduce CPU Time Spent: 1 seconds 740 msec
OK
Time taken: 34.565 seconds

5. hbase_mytable의 값  확인(기존에 있던 값하고 새로 추가된 값이 같이 보인다.)

hive> select * from hbase_mytable;                                           
OK
2.5 1.3 NULL
a a b
a1 a1 b1
a2 a2 b2
a3 a3 b3
second 3 NULL
third NULL 3.14159
Time taken: 1.315 seconds, Fetched: 7 row(s)

6. hbase shell에서 확인

hbase(main):001:0> scan 'mytable'
ROW                        COLUMN+CELL                                                               
 2.5                       column=cf:foo, timestamp=1397112248576, value=1.3                         
 a                         column=cf:bar, timestamp=1397192214568, value=b                           
 a                         column=cf:foo, timestamp=1397192214568, value=a                           
 a1                        column=cf:bar, timestamp=1397192214568, value=b1                          
 a1                        column=cf:foo, timestamp=1397192214568, value=a1                          
 a2                        column=cf:bar, timestamp=1397192214568, value=b2                          
 a2                        column=cf:foo, timestamp=1397192214568, value=a2                          
 a3                        column=cf:bar, timestamp=1397192214568, value=b3                          
 a3                        column=cf:foo, timestamp=1397192214568, value=a3                          
 first                     column=cf:message, timestamp=1397109873612, value=hellp Hbase             
 second                    column=cf:foo, timestamp=1397112803662, value=3                           
 second2                   column=cf:foo2, timestamp=1397112883691, value=3                          
 third                     column=cf:bar, timestamp=1397109940598, value=3.14159                     
9 row(s) in 1.8090 seconds

 

 

번호 제목 날짜 조회 수
47 Ubuntu 16.04 LTS에 Hive 2.1.1설치하면서 "Version information not found in metastore"발생하는 오류원인및 조치사항 2017.05.03 3085
46 Hive MetaStore Server기동시 Could not create "increment"/"table" value-generation container SEQUENCE_TABLE since autoCreate flags do not allow it. 오류발생시 조치사항 2017.05.03 3110
45 [hive] hive.tbls테이블의 owner컬럼값은 hadoop.security.auth_to_local에 의해서 filtering된다. 2022.04.14 3249
44 CDH 5.4.4 버전에서 hive on tez (0.7.0)설치하기 2016.01.14 3370
43 Caused by: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D오류발생시 조치사항 2016.06.03 3429
42 hive에서 insert overwrite directory.. 로 하면 default column구분자는 'SOH'혹은 't'가 됨 2014.05.20 3590
41 hive기동시 Caused by: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D 오류 발생시 조치사항 2016.09.25 3631
40 Hive JDBC Connection과 유형별 에러및 필요한 jar파일 2021.05.24 3724
39 impala session type별 표시되는 정보로 구분하는 방법 2021.05.25 3871
38 lateral view 예제 2014.09.18 3903
37 beeline으로 접근시 "User: gooper is not allowed to impersonate anonymous (state=08S01,code=0)"가 발생하면서 "No current connection"이 발생하는 경우 조치 2018.04.15 4036
36 schema설정없이 hive를 최초에 실행했을때 발생하는 오류메세지및 처리방법 2016.09.25 4055
35 hive 0.13.1 설치 + meta정보는 postgresql 9.3에 저장 2015.04.30 4065
34 hive metastore ERD file 2018.09.20 4088
33 hive metastore db중 TBLS, TABLE_PARAMS테이블 설명 2021.10.22 4160
32 AIX 7.1에서 hive실행시 "hive: line 86: readlink: command not found" 오류가 발생시 임시 조치사항 2016.09.25 4195
31 [sentry]role부여후 테이블명이 변경되어 오류가 발생할때 조치방법 2018.10.16 4198
30 json 값 다루기 2014.04.17 4217
29 dual table만들기 2014.05.16 4243
28 external partition table생성및 data확인 2014.04.03 4278
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