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Posted to issues@carbondata.apache.org by "Vyom Rastogi (JIRA)" <ji...@apache.org> on 2017/01/19 09:05:26 UTC
[jira] [Created] (CARBONDATA-662) Minor Compaction results of count
of individual column is incorrect
Vyom Rastogi created CARBONDATA-662:
---------------------------------------
Summary: Minor Compaction results of count of individual column is incorrect
Key: CARBONDATA-662
URL: https://issues.apache.org/jira/browse/CARBONDATA-662
Project: CarbonData
Issue Type: Bug
Components: data-load
Affects Versions: 1.0.0-incubating
Reporter: Vyom Rastogi
Priority: Minor
Carbon_Properties:
carbon.allowed.compaction.days = 2
carbon.enable.auto.load.merge = true
carbon.compaction.level.threshold = 4,3
carbon.numberof.preserve.segments = 2
carbon.sort.file.buffer.size = 20
carbon.leaf.node.size = 120000
max.query.execution.time = 60
carbon.number.of.cores.while.loading = 6
carbon.number.of.cores = 4
carbon.sort.size = 500000
Steps for compaction :
1)Create table uniqdata:
CREATE TABLE uniqdata (CUST_ID int,CUST_NAME String,ACTIVE_EMUI_VERSION string, DOB timestamp, DOJ timestamp, BIGINT_COLUMN1 bigint,BIGINT_COLUMN2 bigint,DECIMAL_COLUMN1 decimal(30,10), DECIMAL_COLUMN2 decimal(36,10),Double_COLUMN1 double, Double_COLUMN2 double,INTEGER_COLUMN1 int) STORED BY 'org.apache.carbondata.format';
2)load the Uniqdata:
LOAD DATA INPATH 'hdfs://hacluster/vyom/2000_UniqData.csv' into table uniqdata OPTIONS('DELIMITER'=',' , 'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1');
3)Select the count of cust_name by filtering Cust_id
0: jdbc:hive2://172.168.100.212:23040> select count( (CUST_NAME)) from uniqdata where CUST_ID=9000 ;
+------+--+
| _c0 |
+------+--+
| 1 |
+------+--+
4)load the Uniqdata:
LOAD DATA INPATH 'hdfs://hacluster/vyom/2000_UniqData.csv' into table uniqdata OPTIONS('DELIMITER'=',' , 'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1');
5)Select
0: jdbc:hive2://172.168.100.212:23040> select count( (CUST_NAME)) from uniqdata where CUST_ID=9000 ;
+------+--+
| _c0 |
+------+--+
| 2 |
+------+--+
6)Load into uniqdata
0: jdbc:hive2://172.168.100.212:23040> LOAD DATA INPATH 'hdfs://hacluster/vyom/2000_UniqData.csv' into table uniqdata OPTIONS('DELIMITER'=',' , 'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1');
+---------+--+
| Result |
+---------+--+
+---------+--+
No rows selected (0.327 seconds)
7)
0: jdbc:hive2://172.168.100.212:23040> select count( (CUST_NAME)) from uniqdata where CUST_ID=9000 ;
+------+--+
| _c0 |
+------+--+
| 3 |
+------+--+
8)
0: jdbc:hive2://172.168.100.212:23040> LOAD DATA INPATH 'hdfs://hacluster/vyom/2000_UniqData.csv' into table uniqdata OPTIONS('DELIMITER'=',' , 'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1');
+---------+--+
| Result |
+---------+--+
+---------+--+
9)Select the Count
0: jdbc:hive2://172.168.100.212:23040> select count( (CUST_NAME)) from uniqdata where CUST_ID=9000 ;
+------+--+
| _c0 |
+------+--+
| 4 |
+------+--+
1 row selected (5.194 seconds)
10)Load the data
0: jdbc:hive2://172.168.100.212:23040> LOAD DATA INPATH 'hdfs://hacluster/vyom/2000_UniqData.csv' into table uniqdata OPTIONS('DELIMITER'=',' , 'QUOTECHAR'='"','BAD_RECORDS_ACTION'='FORCE','FILEHEADER'='CUST_ID,CUST_NAME,ACTIVE_EMUI_VERSION,DOB,DOJ,BIGINT_COLUMN1,BIGINT_COLUMN2,DECIMAL_COLUMN1,DECIMAL_COLUMN2,Double_COLUMN1,Double_COLUMN2,INTEGER_COLUMN1');
+---------+--+
| Result |
+---------+--+
+---------+--+
No rows selected (0.342 seconds)
11)Select into cust_name
0: jdbc:hive2://172.168.100.212:23040> select count( (CUST_NAME)) from uniqdata where CUST_ID=9000 ;
+------+--+
| _c0 |
+------+--+
| 5 |
+------+--+
1 row selected (5.19 seconds)
12)Show Segments for table uniqdata;
+--------------------+------------------+--------------------------+--------------------------+--+
| SegmentSequenceId | Status | Load Start Time | Load End Time |
+--------------------+------------------+--------------------------+--------------------------+--+
| 5 | Partial Success | 2017-01-19 16:33:14.006 | 2017-01-19 16:33:14.186 |
| 4 | Partial Success | 2017-01-19 16:32:49.484 | 2017-01-19 16:32:49.691 |
| 3 | Compacted | 2017-01-19 16:32:41.044 | 2017-01-19 16:32:41.252 |
| 2 | Compacted | 2017-01-19 16:32:36.952 | 2017-01-19 16:32:37.159 |
| 1 | Compacted | 2017-01-19 16:32:33.251 | 2017-01-19 16:32:33.447 |
| 0.1 | Success | 2017-01-19 16:33:14.205 | 2017-01-19 16:33:14.531 |
| 0 | Compacted | 2017-01-19 16:32:08.457 | 2017-01-19 16:32:08.657 |
+--------------------+------------------+--------------------------+--------------------------+--+
13)Select the cust_name by Cust_id ideally Count should be 6 but it was coming as 14
0: jdbc:hive2://172.168.100.212:23040> select count( (CUST_NAME)) from uniqdata where CUST_ID=9000 ;
+------+--+
| _c0 |
+------+--+
| 14 |
+------+--+
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