Getting ERROR of CircuitBreaker

Hi Team
I am new to ELK stack. I am trying to setup FileBeat --> Logstash --> ElasticSearch --> Kibana. Here while trying to send FileBeat output to Logstash input I am getting below error on Logstash side:

```
CircuitBreaker::rescuing exceptions {:name=>"Beats input", :exception=>LogStash::Inputs::Beats::InsertingToQueueTakeTooLong, :level=>:warn}
Beats input: The circuit breaker has detected a slowdown or stall in the pipeline, the input is closing the current connection and rejecting new connection until the pipeline recover. {:exception=>LogStash::Inputs::BeatsSupport::CircuitBreaker::HalfOpenBreaker, :level=>:warn}
```

I am using Logstash 2.3.2 version with FileBeat: 1.2.2, elasticsearch: 2.2.1
my logstash config:

```
input {
beats {
port => 5044
# codec => multiline {
# pattern => "^%{TIME}"
# negate => true
# what => previous
# }
}
}

filter {
grok {
match => { "message" => "^%{TIME:time}\s+%{LOGLEVEL:level}" }
}
}

output {
elasticsearch {
hosts => ["host:9200"]
manage_template => false
index => "%{[@metadata][beat]}-%{+YYYY.MM.dd}"
document_type => "%{[@metadata][type]}"
}
}
```

my filebeat config:

```
filebeat:
prospectors:
- paths: - *.log
input_type: log
tail_files: false
output:
logstash:
hosts: ["host:5044"]
compression_level: 3
shipper:
logging:
to_files: true
files:
path: /tmp
name: mybeat.log
level: error
```