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Druid Heavy Data Load perform only partial load

Hi Team,
Thank you so much & appreciated your help & support.
I'm facing some issues to load heavy data into druid single node setup, data load job is successful, but only partial data gets loaded.

Machine config : Linux-ubuntu 16.04 LTS, 4 CPU, 16GB RAM, 500 GB disk space

Data csv file size : 290MB
Total rows : 1 million
Total columns : 21
Total dimensions : 21

Druid data ingestion config :

  "type" : "index",
  "spec" : {
    "ioConfig" : {
      "type" : "index",
      "firehose" : {
        "type" : "local",
        "baseDir" : "data/",
        "filter" : "0_1000000.csv"
      "appendToExisting" : false
    "dataSchema" : {
      "dataSource" : "data_1_million",
      "granularitySpec" : {
        "type" : "uniform",
        "segmentGranularity" : "day",
        "queryGranularity" : "day",
        "intervals" : ["2018-08-01/2018-10-19"],
        "rollup" : true
      "parser" : {
        "type" : "string",
        "parseSpec" : {
          "format" : "csv",
                  "hasHeaderRow" : true,
          "dimensionsSpec" : {
            "dimensions" : [
          "timestampSpec": {
                    "column": "date_col_19"
      "metricsSpec" : []
    "tuningConfig" : {
      "type" : "index",
      "targetPartitionSize" : 50000000,
      "maxRowsInMemory" : 10000000,
      "forceExtendableShardSpecs" : true
Druid data ingestion job is successful, but only loads 0.7 million rows out of 1 million rows
Highly appreciated your help & pointers to solve this issue.

Thanks & Sincerely,
Kiran Jagtap

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