# Couldn't decode protobuf

**URL:** <https://discuss.elastic.co/t/couldnt-decode-protobuf/146937>\
**Category:** Logstash\
**Created:** [September 1, 2018, 11:10am UTC](https://discuss.elastic.co/t/couldnt-decode-protobuf/146937 "2018-09-01T11:10:52Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![artobstrel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/artobstrel/32/16874_2.png) [@artobstrel](https://discuss.elastic.co/u/artobstrel)\
**Post date:** [September 1, 2018, 11:10am UTC](https://discuss.elastic.co/t/couldnt-decode-protobuf/146937/1 "2018-09-01T11:10:52Z")

</div>

After upgrading Logstash 5.6.11 → 6.4.0 when decoding protobuf I get an error:

> [WARN][logstash.codecs.protobuf] Couldn't decode protobuf: #\<ProtocolBuffers::DecodeError: **too many bytes when decoding varint** \>.

> **Logstash config**
>
> ```
> input {
> http {
> id => "AppMon ProtoBuf decode"
> port => 8080
> codec => protobuf {
> class_name => "Export::Bt::BusinessTransactions"
> include_path => ['/usr/share/logstash/lib/pluginmanager/dynatrace.rb']
> }
> }
> }
> 
> output {
> file {
> path => "/app/logstash/out/test.out"
> }
> }
> 
> ```

> **dynatrace.rb**
>
> ```
> #!/usr/bin/env ruby
> # Generated by the protocol buffer compiler. DO NOT EDIT!
> 
> require 'protocol_buffers'
> 
> module Export
> module Bt
> # forward declarations
> class BusinessTransactions < ::ProtocolBuffers::Message; end
> class BusinessTransaction < ::ProtocolBuffers::Message; end
> class BtOccurrence < ::ProtocolBuffers::Message; end
> 
> class BusinessTransactions < ::ProtocolBuffers::Message
> set_fully_qualified_name "export.bt.BusinessTransactions"
> repeated ::Export::Bt::BusinessTransaction, :businessTransactions, 1
> optional :int32, :lostTransactions, 2
> optional :string, :serverName, 3
> end
> 
> class BusinessTransaction < ::ProtocolBuffers::Message
> # forward declarations
> 
> # enums
> module Type
> include ::ProtocolBuffers::Enum
> 
> set_fully_qualified_name "export.bt.BusinessTransaction.Type"
> 
> PUREPATH = 0
> USER_ACTION = 1
> VISIT = 2
> end
> 
> set_fully_qualified_name "export.bt.BusinessTransaction"
> 
> required :string, :name, 1
> optional ::Export::Bt::BusinessTransaction::Type, :type, 2
> optional :string, :application, 3
> repeated :string, :measureNames, 4
> repeated :string, :dimensionNames, 5
> repeated ::Export::Bt::BtOccurrence, :occurrences, 6
> optional :string, :systemProfile, 7
> end
> 
> class BtOccurrence < ::ProtocolBuffers::Message
> set_fully_qualified_name "export.bt.BtOccurrence"
> 
> required :int64, :startTime, 1
> optional :int64, :endTime, 2
> optional :string, :purePathId, 5
> repeated :double, :values, 6
> repeated :string, :dimensions, 7
> optional :string, :actionName, 8
> optional :string, :url, 9
> optional :string, :query, 10
> optional :int64, :visitId, 11
> optional :string, :user, 12
> optional :double, :apdex, 13
> optional :bool, :converted, 14
> optional :double, :responseTime, 15
> optional :double, :cpuTime, 16
> optional :double, :syncTime, 17
> optional :double, :waitTime, 18
> optional :double, :suspensionTime, 19
> optional :double, :execTime, 20
> optional :double, :duration, 21
> optional :bool, :failed, 22
> optional :int32, :nrOfActions, 23
> optional :string, :clientFamily, 24
> optional :string, :clientIP, 25
> optional :string, :continent, 26
> optional :string, :country, 27
> optional :string, :city, 28
> optional :int32, :failedActions, 29
> optional :int32, :clientErrors, 30
> optional :bool, :exitActionFailed, 31
> optional :bool, :bounce, 32
> optional :string, :osFamily, 33
> optional :string, :osName, 34
> optional :string, :connectionType, 35
> repeated :string, :convertedBy, 36
> optional :double, :clientTime, 37
> optional :double, :networkTime, 38
> optional :double, :serverTime, 39
> optional :int32, :urlRedirectionTime, 40
> optional :int32, :dnsTime, 41
> optional :int32, :connectTime, 42
> optional :int32, :sslTime, 43
> optional :int32, :documentRequestTime, 44
> optional :int32, :documentResponseTime, 45
> optional :int32, :processingTime, 46
> end
> 
> end
> end
> 
> ```

Please tell me how to fix the problem?

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 29, 2018, 11:21am UTC](https://discuss.elastic.co/t/couldnt-decode-protobuf/146937/2 "2018-09-29T11:21:39Z")

</div>

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