[CARBONDATA-2003] Streaming table is not updated on second streaming load

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.3.0
• Component/s: data-load
• Environment: spark2.1
• Assignee: Jatin
• Reporter: Geetika Gupta
• Created: 08/Jan/18 10:36
• Updated: 23/May/18 12:03

Description

I tried the following scenario on spark shell:

import org.apache.spark.sql.SparkSession

import org.apache.spark.sql.types._
import org.apache.spark.sql.CarbonSession._
import org.apache.carbondata.core.util.CarbonProperties
import org.apache.spark.sql.streaming.

{ProcessingTime, StreamingQuery}

val carbon = SparkSession.builder().config(sc.getConf) .getOrCreateCarbonSession("hdfs://localhost:54311/newCarbonStore","/tmp")

import org.apache.carbondata.core.constants.CarbonCommonConstants
import org.apache.carbondata.core.util.CarbonProperties
CarbonProperties.getInstance().addProperty(CarbonCommonConstants.CARBON_BAD_RECORDS_ACTION, "FORCE")

carbon.sql("CREATE TABLE uniqdata_stream_8(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' TBLPROPERTIES ('TABLE_BLOCKSIZE'= '256 MB', 'streaming'='true')")

import carbon.sqlContext.implicits._

val uniqdataSch = StructType(
Array(StructField("CUST_ID", IntegerType),StructField("CUST_NAME", StringType),StructField("ACTIVE_EMUI_VERSION", StringType),StructField("DOB", TimestampType), StructField("DOJ", TimestampType), StructField("BIGINT_COLUMN1", LongType), StructField("BIGINT_COLUMN2", LongType), StructField("DECIMAL_COLUMN1", org.apache.spark.sql.types.DecimalType(30, 10)), StructField("DECIMAL_COLUMN2", org.apache.spark.sql.types.DecimalType(36,10)), StructField("Double_COLUMN1", DoubleType), StructField("Double_COLUMN2", DoubleType), StructField("INTEGER_COLUMN1", IntegerType)))

val streamDf = carbon.readStream
.schema(uniqdataSch)
.option("sep", ",")
.csv("file:///home/geetika/Downloads/uniqdata")

val dfToWrite = streamDf.map

{x => x.get(0) + "," + x.get(1) + "," + x.get(2)+ "," + x.get(3)+ "," + x.get(4)+ "," + x.get(5)+ "," + x.get(6)+ "," + x.get(7)+ "," + x.get(8)+ "," + x.get(9)+ "," + x.get(10)+ "," + x.get(11)}

val qry = dfToWrite.writeStream.format("carbondata").trigger(ProcessingTime("5 seconds"))
.option("checkpointLocation","/stream/uniq8")
.option("dbName", "default")
.option("tableName", "uniqdata_stream_8")
.start()

qry.awaitTermination()

Now close this shell and check the record count on the table using :

import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.CarbonSession._
val carbon = SparkSession.builder().config(sc.getConf) .getOrCreateCarbonSession("hdfs://localhost:54311/newCarbonStore","/tmp")
carbon.sql("select count from uniqdata_stream_8").show
OUTPUT:
scala> carbon.sql("select count from uniqdata_stream_8").show
18/01/08 15:51:53 ERROR CarbonProperties: Executor task launch worker-0 Configured value for property carbon.number.of.cores.while.loading is wrong. Falling back to the default value 2
--------

count(1)

--------

2013

--------

Again try the above scenario and check the count. It remains same after the second streaming load.