here is the debug logs :
==== loop here - do nothing =====
[2018-11-03T17:53:55,467][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:53:55,467][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:53:58,186][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:00,497][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:00,497][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:03,200][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:05,529][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:05,544][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:08,109][DEBUG][logstash.inputs.file ] _globbed_files: C:/elastic/ddilogs/threats2018*.csv: glob is: ["C:/elastic/ddilogs/threats201807.csv", "C:/elastic/ddilogs/threats201808.csv", "C:/elastic/ddilogs/threats201809.csv", "C:/elastic/ddilogs/threats201810.csv"]
[2018-11-03T17:54:08,200][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:10,560][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:10,562][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:13,200][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:15,569][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:15,570][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:18,201][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:20,577][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:20,578][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:23,217][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:23,567][DEBUG][logstash.inputs.file ] _globbed_files: C:/elastic/ddilogs/threats2018*.csv: glob is: ["C:/elastic/ddilogs/threats201807.csv", "C:/elastic/ddilogs/threats201808.csv", "C:/elastic/ddilogs/threats201809.csv", "C:/elastic/ddilogs/threats201810.csv"]
[2018-11-03T17:54:25,591][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:25,591][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:28,218][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:30,602][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:30,602][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:33,228][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:35,623][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:35,624][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:38,229][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:38,883][DEBUG][logstash.inputs.file ] _globbed_files: C:/elastic/ddilogs/threats2018*.csv: glob is: ["C:/elastic/ddilogs/threats201807.csv", "C:/elastic/ddilogs/threats201808.csv", "C:/elastic/ddilogs/threats201809.csv", "C:/elastic/ddilogs/threats201810.csv"]
[2018-11-03T17:54:40,633][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:40,633][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:43,234][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:45,641][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:45,641][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:48,241][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:50,655][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:50,655][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:53,255][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}
[2018-11-03T17:54:54,196][DEBUG][logstash.inputs.file ] _globbed_files: C:/elastic/ddilogs/threats2018*.csv: glob is: ["C:/elastic/ddilogs/threats201807.csv", "C:/elastic/ddilogs/threats201808.csv", "C:/elastic/ddilogs/threats201809.csv", "C:/elastic/ddilogs/threats201810.csv"]
[2018-11-03T17:54:55,675][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ParNew"}
[2018-11-03T17:54:55,675][DEBUG][logstash.instrument.periodicpoller.jvm] collector name {:name=>"ConcurrentMarkSweep"}
[2018-11-03T17:54:58,268][DEBUG][logstash.pipeline ] Pushing flush onto pipeline {:pipeline_id=>"main", :thread=>"#<Thread:0x21acfc92 sleep>"}