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From "Ramakrishna S (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CARBONDATA-1719) Carbon1.3.0-Pre-AggregateTable - Empty segment is created if pre-aggr table created in parallel with table load, aggregate query returns no data
Date Wed, 15 Nov 2017 10:19:00 GMT
Ramakrishna S created CARBONDATA-1719:
-----------------------------------------

             Summary: Carbon1.3.0-Pre-AggregateTable - Empty segment is created if pre-aggr
table created in parallel with table load, aggregate query returns no data
                 Key: CARBONDATA-1719
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1719
             Project: CarbonData
          Issue Type: Bug
          Components: data-load
    Affects Versions: 1.3.0
         Environment: Test - 3 node ant cluster
            Reporter: Ramakrishna S
             Fix For: 1.3.0


1. Create a table
create table if not exists lineitem3(L_SHIPDATE string,L_SHIPMODE string,L_SHIPINSTRUCT string,L_RETURNFLAG
string,L_RECEIPTDATE string,L_ORDERKEY string,L_PARTKEY string,L_SUPPKEY   string,L_LINENUMBER
int,L_QUANTITY double,L_EXTENDEDPRICE double,L_DISCOUNT double,L_TAX double,L_LINESTATUS string,L_COMMITDATE
string,L_COMMENT  string) STORED BY 'org.apache.carbondata.format' TBLPROPERTIES ('table_blocksize'='128','NO_INVERTED_INDEX'='L_SHIPDATE,L_SHIPMODE,L_SHIPINSTRUCT,L_RETURNFLAG,L_RECEIPTDATE,L_ORDERKEY,L_PARTKEY,L_SUPPKEY','sort_columns'='');
2. Run load queries and create pre-agg table queries in diff console:
load data inpath "hdfs://hacluster/user/test/lineitem.tbl.1" into table lineitem3 options('DELIMITER'='|','FILEHEADER'='L_ORDERKEY,L_PARTKEY,L_SUPPKEY,L_LINENUMBER,L_QUANTITY,L_EXTENDEDPRICE,L_DISCOUNT,L_TAX,L_RETURNFLAG,L_LINESTATUS,L_SHIPDATE,L_COMMITDATE,L_RECEIPTDATE,L_SHIPINSTRUCT,L_SHIPMODE,L_COMMENT');

create datamap agr_lineitem3 ON TABLE lineitem3 USING "org.apache.carbondata.datamap.AggregateDataMapHandler"
as select L_RETURNFLAG,L_LINESTATUS,sum(L_QUANTITY),sum(L_EXTENDEDPRICE) from lineitem3 group
by  L_RETURNFLAG, L_LINESTATUS;

3.  Check table content using aggregate query:
select l_returnflag,l_linestatus,sum(l_quantity),sum(l_extendedprice) from lineitem3 group
by l_returnflag, l_linestatus;

0: jdbc:hive2://10.18.98.34:23040> show segments for table lineitem2;
+--------------------+----------+--------------------------+--------------------------+------------+--+
| SegmentSequenceId  |  Status  |     Load Start Time      |      Load End Time       | Merged
To  |
+--------------------+----------+--------------------------+--------------------------+------------+--+
| 0                  | Success  | 2017-11-15 17:56:54.554  | 2017-11-15 17:57:56.605  |  
         |
+--------------------+----------+--------------------------+--------------------------+------------+--+
1 row selected (0.179 seconds)
0: jdbc:hive2://10.18.98.34:23040> show segments for table lineitem1;

HDFS data:
BLR1000014307:/srv/spark2.2Bigdata/install/hadoop/datanode # bin/hadoop fs -ls /carbonstore/default/lineitem3_agr_lineitem3/Fact/Part0/Segment_0
17/11/15 18:15:18 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your
platform... using builtin-java classes where applicable
BLR1000014307:/srv/spark2.2Bigdata/install/hadoop/datanode # bin/hadoop fs -ls /carbonstore/default/lineitem3/Fact/Part0/Segment_0
17/11/15 18:15:34 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your
platform... using builtin-java classes where applicable
Found 27 items
-rw-r--r--   2 root users      22148 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/1510740293106.carbonindexmerge
-rw-r--r--   2 root users   58353052 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-0-0_batchno0-0-1510740300247.carbondata
-rw-r--r--   2 root users   58351680 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-0-0_batchno1-0-1510740300247.carbondata
-rw-r--r--   2 root users   58364823 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-0-1_batchno0-0-1510740300247.carbondata
-rw-r--r--   2 root users   58356303 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-0-2_batchno0-0-1510740300247.carbondata
-rw-r--r--   2 root users   58342246 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-1-0_batchno0-0-1510740300247.carbondata
-rw-r--r--   2 root users   58353186 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-1-0_batchno1-0-1510740300247.carbondata
-rw-r--r--   2 root users   58352964 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-1-1_batchno0-0-1510740300247.carbondata
-rw-r--r--   2 root users   58357183 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-1-2_batchno0-0-1510740300247.carbondata
-rw-r--r--   2 root users   58345739 2017-11-15 18:05 /carbonstore/default/lineitem3/Fact/Part0/Segment_0/part-2-0_batchno0-0-1510740300247.carbondata

Yarn job stages:




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