How to filter exception message using logstash

Ok, let me explain u

Below is the exception message

Exception Alert

@timestamp: 2021-06-01T11:59:38Z
_id: 6N5yx3kBz7SOxaiwHV-c
_index: logstash-2021.06.01
_type: _doc
message: <30>Jun  1 11:59:38 fx-prod-1 prod_fx-control-plane.1.8rfrnvi1 org.springframework.dao.CannotAcquireLockException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.LockAcquisitionException: could not execute statement
num_hits: 1
num_matches: 1

But now my team want some more error of lines need to be add like example

Exception Alert

@timestamp: 2021-06-01T11:59:38Z
_id: 6N5yx3kBz7SOxaiwHV-c
_index: logstash-2021.06.01
_type: _doc
message: <30>Jun  1 11:59:38 fx-prod-1 prod_fx-control-plane.1.8rfrnvi1 org.springframework.dao.CannotAcquireLockException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.LockAcquisitionException: could not execute statement "HERE NEED SOME MORE LINES OF ERROR SHOULD COME"
num_hits: 1
num_matches: 1

I google and found some filter to use in logstash.conf file

input {
	tcp {
		port => 5044
#                codec => "json"
                codec => multiline {
                pattern => "^%{YEAR}-%{MONTHNUM}-%{MONTHDAY} %{TIME}.*"
                negate => "true"
                what => "previous"
             }
     }
}

filter {
  #If log line contains tab character followed by 'at' then we will tag that entry as stacktrace
  if [message] =~ "\tat" {
    grok {
      match => ["message", "^(\tat)"]
      add_tag => ["stacktrace"]
    }
  } 
}

## Add your filters / logstash plugins configuration here

output {
	elasticsearch {
		hosts => "elasticsearch:9200"
                user => "elastic"
                password => "kibana@1234"
	}
#        stdout { codec => rubydebug }
}

after i add filter, codec, pattern, negate, what in logstash.conf file

now getting exception message like this

@timestamp: 2021-06-08T10:41:24.570Z
_id: Sm4263kBz7SOxaiwcp_J
_index: logstash-2021.06.08
_type: _doc
message: 2021-06-08 10:17:23.624 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Saving TestCaseResponses in ES"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.654 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Reviewing TestCaseResponses Status"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.654 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Update Review Status for HoursExceptionsApprovalHistoryGetAllowedRbac"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.683 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Processing AutoSuggestion for HoursExceptionsApprovalHistoryGetAllowedRbac"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.710 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Processed AutoSuggestion for HoursExceptionsApprovalHistoryGetAllowedRbac"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.710 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Updating Run [8a8093e379e5ef320179eb1229873475] with Validations"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com
[107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.710 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Processed AutoSuggestion for HoursExceptionsApprovalHistoryGetAllowedRbac"}
{"@timestamp":"2021-06-08T10:17:23+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"[163.107.196.104.bc.googleusercontent.com](http://163.107.196.104.bc.googleusercontent.com/)","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 8 10:17:23 fx-prod-1 prod_fx-control-plane.1.jau26s2a 2021-06-08 10:17:23.710 INFO 1 --- [ container-172] c.f.f.s.p.r.TestCaseResponseProcessor : Updating Run [8a8093e379e5ef320179eb1229873475] with Validations"}
{"@timestamp":"2021-06-10T08:11:40+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"163.107.196.104.bc.googleusercontent.com","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 10 08:11:40 fx-prod-1 prod_fx-control-plane.1.jau26s2a #011at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1476) ~[spring-rabbit-2.2.1.RELEASE.jar!\/:2.2.1.RELEASE]"}
{"@timestamp":"2021-06-10T08:11:40+00:00","type":"syslog_json","tag":"prod_fx-control-plane.1.jau26s2a","relayhost":"163.107.196.104.bc.googleusercontent.com","relayip":"104.196.107.163","logsource":"fx-prod-1","hostname":"fx-prod-1","program":"prod_fx-control-plane.1.jau26s2a","priority":"30","severity":"6","facility":"3","severity_label":"info","facility_label":"daemon","procid":"-","message":"<30>Jun 10 08:11:40 fx-prod-1 prod_fx-control-plane.1.jau26s2a #011at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:1467) ~[spring-rabbit-2.2.1.RELEASE.jar!\/:2.2.1.RELEASE]"}

Unnecessary contain is showing in exception message i only want to have few lines of exception message should show