---
title: "Comment by Nicolas Le Jeune on \"How to calculate bandwidth use with SNMP and Logstash\" | Hashnode"
description: "Thank you so much for your guidance on this topic, it serve exactly my need. I followed your example and created a new .conf pipeline in my logstash pipeline fo"
url: "https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71/comment/61ce35647cb96c3f9225ea34"
---

[Discussion](https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71)

Comment [How to calculate bandwidth use with SNMP and Logstash](https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71)

[Nicolas Le Jeune](https://hashnode.com/@Joyrock)

[Dec 30, 2021](https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71/comment/61ce35647cb96c3f9225ea34)

Thank you so much for your guidance on this topic, it serve exactly my need. I followed your example and created a new .conf pipeline in my logstash pipeline folder. But I can't figure out where I should store the query\_ifIndex\_template.json If I store it in the pipeline folder directly, it doesn't work and crash my logstash instance :

\[2021-12-30T22:25:23,339\]\[ERROR\]\[logstash.agent \] Failed to execute action {:action=>LogStash::PipelineAction::Create/pipeline\_id:main, :exception=>"LogStash::ConfigurationError", :**message=>"Expected one of \[ \\t\\r\\n\], \\"#\\", \\"input\\", \\"filter\\", \\"output\\" at line 1, column 1 (byte 1)",** :backtrace=>\["/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:32:in `compile_imperative'", "org/logstash/execution/AbstractPipelineExt.java:187:in`initialize'", "org/logstash/execution/JavaBasePipelineExt.java:72:in `initialize'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:47:in`initialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline\_action/create.rb:52:in `execute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:383:in`block in converge\_state'"\]}

If I put the json somewhere else I have this error :

\[2021-12-30T22:37:10,481\]\[ERROR\]\[logstash.javapipeline \]\[main\] Pipeline error {:pipeline\_id=>"main", :exception=>#**<Errno::ENOENT: No such file or directory - query\_ifIndex\_template.json>**, :backtrace=>\["org/jruby/RubyIO.java:1237:in `sysopen'", "org/jruby/RubyFile.java:365:in`initialize'", "org/jruby/RubyIO.java:1156:in `open'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-filter-elasticsearch-3.11.0/lib/logstash/filters/elasticsearch.rb:103:in`register'", "org/logstash/config/ir/compiler/AbstractFilterDelegatorExt.java:75:in `register'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:232:in`block in register\_plugins'", "org/jruby/RubyArray.java:1821:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:231:in`register\_plugins'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:590:in `maybe_setup_out_plugins'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:244:in`start\_workers'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:189:in `run'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:141:in`block in start'"\], "pipeline.sources"=>\["/usr/share/logstash/pipeline/logstash.conf", "/usr/share/logstash/pipeline/snmp.conf"\], :thread=>"#<Thread:0x6fe49869 run>"}

[Yassine LASRI](https://hashnode.com/@ylasri)

[Dec 31, 2021](https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71/comment/61ce35647cb96c3f9225ea34#reply-61cea7317cb96c3f9225f0e4)

You can put the template in the same forlder as the pipeline or just specific the absolute path

But the initial error show that there is a syntaxe error in your pipeline. could you share it to check ?

[Nicolas Le Jeune](https://hashnode.com/@Joyrock) Email me on yassine.lasri@gmail.com for any assistance