Schedule not working sometimes | gaps in records

Elastic Stack Logstash
1

Hi
i have 10 jdbc.conf files when i start the logstash all queries executed successfully but after the first shot some of the queries not execute.
i tried to find the reason in logstash.log but nothing show
PFB screenshot from the dashboard and you can see the gaps

CS

my jdbc.conf

input {
  jdbc {
    jdbc_driver_library => "/opt/ojdbc7.jar"
    jdbc_driver_class => "Java::oracle.jdbc.driver.OracleDriver"
    jdbc_connection_string => "jdbc:oracle:thin:@*:*/*"
    jdbc_user => "*"
              jdbc_password => "*"
    schedule => "* * * * *"
    statement => "select * from my table"

  }

##############################################

jdbc {
    jdbc_driver_library => "/opt/ojdbc7.jar"
    jdbc_driver_class => "Java::oracle.jdbc.driver.OracleDriver"
    jdbc_connection_string => "jdbc:oracle:thin:@*/*"
    jdbc_user => "*"
              jdbc_password => "*"
    schedule => "* * * * *"
    statement => "select * from my table"

  }

}

filter {
      uuid {
        target    => "uuid"
        overwrite => true
      }
}


output {stdout { codec => rubydebug }
elasticsearch { hosts => ["http://localhost:9200"]
data_stream => "true"
data_stream_type => "logs"
document_id => "%{uuid}"
user => "*"
password => "*"

 }
}

the other files same structure but without filter and output

2

can anyone help me here :frowning:
i tried to increase the pipeline.workers but still the same
please let me know if any further details needed
thanks