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From "Vyom Rastogi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CARBONDATA-662) Minor Compaction results of count of individual column is incorrect
Date Thu, 19 Jan 2017 09:05:26 GMT
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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