Fields value doesn't update when I change parsing rule in logstash

Elastic Stack Logstash
1

Hi fellas , I am newbie here . When i change field value in logstash config file and restart logstash some time I can see the changed value but some time it doesn't work. Just for an example i simply added a static field in logstash config like this

add_field => ['vendorname','kibana']
and next time when I update this to add_field => ['vendorname','abc'] and restart logstash then It is not necessary I will see an updated value. And want to know how can i clear session of kibana

2

Such a configuration change only applies to new events. When you experience that the old value is still used, are you sure you're looking at events processed after Logstash was reconfigured?

3

what events are ? I just have conditional statement in config file

4

I'm talking about the events that Logstash processes and that you're viewing in Kibana. I don't find it likely that Logstash keeps adding the old field value after you've restarted it with a new configuration.

5

I am facing this problem and thought It may be cause of cache .

6

No, that's not likely.