Not able to see the out when i run logstash

Elastic Stack Logstash
1

when i run logstash withe ./logstash -f /etc/logstash/conf.d/logstash-filter.conf.

not geeting any output and see the below error.

[root@localhost bin]# ./logstash -f /etc/logstash/conf.d/logstash-filter.conf
OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
WARNING: Could not find logstash.yml which is typically located in $LS_HOME/config or /etc/logstash. You can specify the path using --path.settings. Continuing using the defaults
Could not find log4j2 configuration at path /usr/share/logstash/config/log4j2.properties. Using default config which logs errors to the console
[INFO ] 2018-05-30 22:01:45.942 [main] scaffold - Initializing module {:module_name=>"fb_apache", :directory=>"/usr/share/logstash/modules/fb_apache/configuration"}
[INFO ] 2018-05-30 22:01:45.950 [main] scaffold - Initializing module {:module_name=>"netflow", :directory=>"/usr/share/logstash/modules/netflow/configuration"}
[WARN ] 2018-05-30 22:01:46.667 [LogStash::Runner] multilocal - Ignoring the 'pipelines.yml' file because modules or command line options are specified
[INFO ] 2018-05-30 22:01:46.951 [LogStash::Runner] runner - Starting Logstash {"logstash.version"=>"6.2.4"}
[INFO ] 2018-05-30 22:01:47.242 [Api Webserver] agent - Successfully started Logstash API endpoint {:port=>9601}
[INFO ] 2018-05-30 22:01:48.250 [Ruby-0-Thread-1: /usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:22] pipeline - Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>1, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[INFO ] 2018-05-30 22:01:48.763 [Ruby-0-Thread-1: /usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:22] pipeline - Pipeline started successfully {:pipeline_id=>"main", :thread=>"#<Thread:0x11dc8c05@/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:247 run>"}
[INFO ] 2018-05-30 22:01:48.776 [Ruby-0-Thread-1: /usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:22] agent - Pipelines running {:count=>1, :pipelines=>["main"]}

2

can you help me on this

3

And what's in logstash-filter.conf?

4

input {
file {
path => "/home/kunchala/log.txt"
start_position => "beginning"
}
}
output {
stdout {}
file {
path => "/home/kunchala/logstash.txt"
}
}

5

I'm guessing Logstash thinks it already has processed the file. You can use the sincedb_path option to the file input to reset Logstash's opinion of the current position in the file. Please consult the file input documentation and countless previous posts on this topic.

6

i am new to logstash, can you please provide one example how to use sincedb_path option to the file input to reset Logstash's opinion of the current position in the file

7

can you please help me still i am facing same issue

8

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