After removing it =>
Sending Logstash logs to /Users/bollampally.r/downloads/sre/logstash-6.4.0/logs which is now configured via log4j2.properties
[2018-09-07T11:15:51,920][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
[2018-09-07T11:15:52,664][INFO ][logstash.runner ] Starting Logstash {"logstash.version"=>"6.4.0"}
[2018-09-07T11:15:55,269][INFO ][logstash.pipeline ] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>4, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[2018-09-07T11:15:55,911][INFO ][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://localhost:9200/]}}
[2018-09-07T11:15:55,926][INFO ][logstash.outputs.elasticsearch] Running health check to see if an Elasticsearch connection is working {:healthcheck_url=>http://localhost:9200/, :path=>"/"}
[2018-09-07T11:15:56,248][WARN ][logstash.outputs.elasticsearch] Restored connection to ES instance {:url=>"http://localhost:9200/"}
[2018-09-07T11:15:56,338][INFO ][logstash.outputs.elasticsearch] ES Output version determined {:es_version=>6}
[2018-09-07T11:15:56,343][WARN ][logstash.outputs.elasticsearch] Detected a 6.x and above cluster: the type
event field won't be used to determine the document _type {:es_version=>6}
[2018-09-07T11:15:56,385][INFO ][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["//localhost"]}
[2018-09-07T11:15:56,405][INFO ][logstash.outputs.elasticsearch] Using mapping template from {:path=>nil}
[2018-09-07T11:15:56,431][INFO ][logstash.outputs.elasticsearch] Attempting to install template {:manage_template=>{"template"=>"logstash-", "version"=>60001, "settings"=>{"index.refresh_interval"=>"5s"}, "mappings"=>{"default"=>{"dynamic_templates"=>[{"message_field"=>{"path_match"=>"message", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false}}}, {"string_fields"=>{"match"=>"", "match_mapping_type"=>"string", "mapping"=>{"type"=>"text", "norms"=>false, "fields"=>{"keyword"=>{"type"=>"keyword", "ignore_above"=>256}}}}}], "properties"=>{"@timestamp"=>{"type"=>"date"}, "@version"=>{"type"=>"keyword"}, "geoip"=>{"dynamic"=>true, "properties"=>{"ip"=>{"type"=>"ip"}, "location"=>{"type"=>"geo_point"}, "latitude"=>{"type"=>"half_float"}, "longitude"=>{"type"=>"half_float"}}}}}}}}
[2018-09-07T11:15:56,868][ERROR][logstash.pipeline ] Error registering plugin {:pipeline_id=>"main", :plugin=>"<LogStash::Inputs::File start_position=>"beginning", path=>["\\Users\\bollampally.r\\Downloads\\sre\\drugdata1.csv"], id=>"a2a5ab0a039cb59d481c4dbab4d4e4ac39ad2a924d4a91f34c140933f92bfb4e", sincedb_path=>"/dev/null", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>"plain_bd7a63d2-26ed-419b-a67d-e3e00a87c913", enable_metric=>true, charset=>"UTF-8">, stat_interval=>1.0, discover_interval=>15, sincedb_write_interval=>15.0, delimiter=>"\n", close_older=>3600.0, mode=>"tail", file_completed_action=>"delete", sincedb_clean_after=>1209600.0, file_chunk_size=>32768, file_chunk_count=>140737488355327, file_sort_by=>"last_modified", file_sort_direction=>"asc">", :error=>"File paths must be absolute, relative path specified: \Users\bollampally.r\Downloads\sre\drugdata1.csv", :thread=>"#<Thread:0x4f0a1cef run>"}
[2018-09-07T11:15:57,397][ERROR][logstash.pipeline ] Pipeline aborted due to error {:pipeline_id=>"main", :exception=>#<ArgumentError: File paths must be absolute, relative path specified: \Users\bollampally.r\Downloads\sre\drugdata1.csv>, :backtrace=>["/Users/bollampally.r/downloads/sre/logstash-6.4.0/vendor/bundle/jruby/2.3.0/gems/logstash-input-file-4.1.5/lib/logstash/inputs/file.rb:269:in block in register'", "org/jruby/RubyArray.java:1734:in
each'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/vendor/bundle/jruby/2.3.0/gems/logstash-input-file-4.1.5/lib/logstash/inputs/file.rb:267:in register'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:241:in
register_plugin'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:252:in block in register_plugins'", "org/jruby/RubyArray.java:1734:in
each'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:252:in register_plugins'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:395:in
start_inputs'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:293:in start_workers'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:199:in
run'", "/Users/bollampally.r/downloads/sre/logstash-6.4.0/logstash-core/lib/logstash/pipeline.rb:159:in `block in start'"], :thread=>"#<Thread:0x4f0a1cef run>"}
[2018-09-07T11:15:57,429][ERROR][logstash.agent ] Failed to execute action {:id=>:main, :action_type=>LogStash::ConvergeResult::FailedAction, :message=>"Could not execute action: PipelineAction::Create<main>, action_result: false", :backtrace=>nil}
[2018-09-07T11:15:57,830][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
Please advise ASAP