Logstash continues to restart itself on connection failures

I have a usecase where i need to ingest data from Oracle DB and send it to elastic search
i have written a config file which is executing fine when connection is ok. but today when i ran it somehow password got wrong and due to that connection failure logstash was restarting itself continuously.

config file :

input {
         jdbc  {
            jdbc_validate_connection => true
            connection_retry_attempts => 2
            connection_retry_attempts_wait_time => 60
            jdbc_connection_string => 'jdbc:oracle:thin:@<host>:<port>/<service name>'
            jdbc_user => '<user>'
            jdbc_driver_library=>'<absolute path to ojdbc8.jar>'
            statement => 'select * from mytable'
            last_run_metadata_path=>'<path to yml file>'
    output {
        stdout {
             codec => json_lines

Even if i gave wrong DB host to test the retry attempts, it seems logstash is ignoring all and restating itself and getting stuck in an infinite loop.

log :
[Error] [logstash.inputs.jdbc ] Unable to connect to database. Tried 1 times{:error_message=>"Java::JavaSql::SqlRecoverableException: IO Error: Unknown host specified}
[logstash.javapipeline ] A plugin had an unrecoverable error. Will restart this plugin.
Plugin: <Logstash::

Logstash version 7.2.0

plugin version used
logstash-input-jdbc (4.3.13)
logstash-filter-jdbc-static (1.0.6)

Can anyone suggest what i am doing wrong

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