I am trying to consume serialized avro events from a Kafka Queue. The kafka queue is populated using a simple java producer. For clarity I am sharing the three components:
Avro schema file
{"namespace": "example.avro",
"type": "record",
"name": "User",
"fields": [
{"name": "name", "type": "string"},
{"name": "favorite_number", "type": ["int", "null"]},
{"name": "favorite_color", "type": ["string", "null"]}
]
}
Logstash Config file
input {
kafka {
zk_connect => "localhost:2181"
topic_id => "MemoryTest"
type => "standard_event"
group_id => "butiline_dash_prod"
reset_beginning => true
auto_offset_reset => smallest
codec => {
avro => {
schema_uri => "/opt/ELK/logstash-1.5.4/bin/user.avsc"
}
}
}
}
output {
if [type] == "standard_event" {
stdout {
codec => rubydebug
}
}
}
Problem
The pipeline fails at logstash level. When a new event is pushed into Kafka, I get following on logstash console:
Alyssa�blue {:exception=> # < NoMethodError: undefined method decode' for ["avro", {"schema_uri"=>"/opt/ELK/logstash-1.5.4/bin/user.avsc"}]:Array>, :backtrace=>["/opt/ELK/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-input-kafka-1.0.0/lib/logstash/inputs/kafka.rb:169:inqueue_event'", "/opt/ELK/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-input-kafka-1.0.0/lib/logstash/inputs/kafka.rb:139:in run'", "/opt/ELK/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/pipeline.rb:177:ininputworker'", "/opt/ELK/logstash-1.5.4/vendor/bundle/jruby/1.9/gems/logstash-core-1.5.4-java/lib/logstash/pipeline.rb:171:in `start_input'"], :level=>:error}