River puts too much load on only one node

[KashiPashoria_Tonny]

Can not convert from long to float logstash

I'm taking data from sql server to elasticsearch 6.6 using logstash and jdbc. Some of my records are skipped by logstash printing these warning logs: [2019-02-15T16:48:52,630][WARN ][logstash.outputs.elasticsearch] Could not index event to Elasticsearch. {:status=>400, :action=>["index", {:_id=>"2111348540", :_index=>"order_tracking1", :_type=>"orderstracking_report", :_routing=>nil}, #LogStash::Event:0x14b8bcd8], :response=>{"index"=>{"_index"=>"order_tracking1", "_type"=>"orderstracking_repor…

its the issue with logstash I posted when I was using it a couple of months ago and it went unsolved. However, I can't now move back to logstash.