# JMX input not starting
**URL:** https://discuss.elastic.co/t/jmx-input-not-starting/135676
**Category:** Logstash
**Created:** [June 13, 2018, 10:06am UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676 "2018-06-13T10:06:03Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Amrit\_Jangid](https://discuss.elastic.co/u/Amrit_Jangid)
#### Post date: [June 13, 2018, 10:06am UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/1 "2018-06-13T10:06:04Z")
Trying to read Kafka JMX metrics data into Logstash, Here are the config-
$ cat jmx.conf
```auto
input {
jmx {
path => "/home/ubuntu/dev/logstash-6.2.4/conf"
polling_frequency => 10
type => "jmx"
nb_thread => 2
}
}
output {
stdout { codec => rubydebug }
}
```
$ cat /home/ubuntu/dev/logstash-6.2.4/conf/jmx\_config.json
```auto
{
"host" : "kafka-hostname.com",
"port" : 9000,
"queries" : [
{
"object_name" : "java.lang:type=Memory",
"object_alias" : "Memory"
}
]
}
```
Error is -
[2018-06-13T09:55:23,893][ERROR][logstash.agent] Failed to execute action {:action=\>LogStash::PipelineAction::Create/pipeline\_id:main, :exception=\>"LogStash::ConfigurationError", :message=\>"Expected one of #, if, ", ', } at line 2, column 1 (byte 9) after input {\n", :backtrace=\>["/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/compiler.rb:42:in `compile_imperative'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/compiler.rb:50:in`compile\_graph'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/compiler.rb:12:in `block in compile_sources'", "org/jruby/RubyArray.java:2486:in`map'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/compiler.rb:11:in `compile_sources'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/pipeline.rb:51:in`initialize'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/pipeline.rb:169:in `initialize'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/pipeline_action/create.rb:40:in`execute'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:315:in `block in converge_state'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:141:in`with\_pipelines'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:312:in `block in converge_state'", "org/jruby/RubyArray.java:1734:in`each'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:299:in `converge_state'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:166:in`block in converge\_state\_and\_update'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:141:in `with_pipelines'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:164:in`converge\_state\_and\_update'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/agent.rb:90:in `execute'", "/home/ubuntu/dev/logstash-6.2.4/logstash-core/lib/logstash/runner.rb:348:in`block in execute'", "/home/ubuntu/dev/logstash-6.2.4/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:24:in `block in initialize'"]}
jmx host-port are accessible and jmx plugin is installed-
$ ./bin/logstash-plugin list | grep jmx
logstash-input-jmx
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [June 13, 2018, 11:25am UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/2 "2018-06-13T11:25:25Z")
Do you by any chance have any garbage characters at the start of line 2?
---
### Author:  [@Amrit\_Jangid](https://discuss.elastic.co/u/Amrit_Jangid)
#### Post date: [June 13, 2018, 11:31am UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/3 "2018-06-13T11:31:31Z")
No, I don't think there are any garbage characters, Pasted the configs as above.
I doubt there might be a case that it's not able to understand the input type- "jmx" in line 2?
Couldn't find anything related to plugin missing in logs, I tried to run with old version of Logstash, but no luck
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [June 13, 2018, 12:01pm UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/4 "2018-06-13T12:01:08Z")
> No, I don't think there are any garbage characters, Pasted the configs as above.
Check with a hex editor. You can also delete parts of the file to narrow things down.
> I doubt there might be a case that it's not able to understand the input type- "jmx" in line 2?
A missing plugin will result in another error message.
---
### Author:  [@Amrit\_Jangid](https://discuss.elastic.co/u/Amrit_Jangid)
#### Post date: [June 13, 2018, 12:04pm UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/5 "2018-06-13T12:04:58Z")
Got it running by renaming file extension type-
$ mv /home/ubuntu/dev/logstash-6.2.4/conf/jmx\_config.json /home/ubuntu/dev/logstash-6.2.4/conf/jmx\_config.conf
$ mv /home/ubuntu/dev/logstash-6.2.4/config/jmx.conf /home/ubuntu/dev/logstash-6.2.4/config/jmx.yml
Now Running logstash as : sudo ./bin/logstash -f /home/ubuntu/dev/logstash-6.2.4/config/jmx.yml
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [June 13, 2018, 12:18pm UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/6 "2018-06-13T12:18:00Z")
What? That doesn't make any sense. jmx.yml isn't a YAML file so calling it such can only result in surprises. If you pass a directory with config files to Logstash (e.g. `logstash -f /home/ubuntu/dev/logstash-6.2.4/config`) Logstash will only care about .conf files.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 11, 2018, 12:18pm UTC](https://discuss.elastic.co/t/jmx-input-not-starting/135676/7 "2018-07-11T12:18:09Z")
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