---
title: "Nicolas Le Jeune (@Joyrock) | Hashnode"
description: "Nicolas Le Jeune (@Joyrock) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@Joyrock"
---

@Joyrock

# Nicolas Le Jeune

@Joyrock · Joined December 2021

## Comments

[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=>\["/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:32:in compile\_imperative'", "org/logstash/execution/AbstractPipelineExt.java:187:ininitialize'", "org/logstash/execution/JavaBasePipelineExt.java:72:in initialize'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:47:ininitialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline\_action/create.rb:52:in execute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:383:inblock in converge\_state'"\]} 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=>\["org/jruby/RubyIO.java:1237:in sysopen'", "org/jruby/RubyFile.java:365:ininitialize'", "org/jruby/RubyIO.java:1156:in open'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-filter-elasticsearch-3.11.0/lib/logstash/filters/elasticsearch.rb:103:inregister'", "org/logstash/config/ir/compiler/AbstractFilterDelegatorExt.java:75:in register'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:232:inblock in register\_plugins'", "org/jruby/RubyArray.java:1821:in each'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:231:inregister\_plugins'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:590:in maybe\_setup\_out\_plugins'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:244:instart\_workers'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:189:in run'", "/usr/share/logstash/logstash-core/lib/logstash/java\_pipeline.rb:141:inblock in start'"\], "pipeline.sources"=>\["/usr/share/logstash/pipeline/logstash.conf", "/usr/share/logstash/pipeline/snmp.conf"\], :thread=>"#<Thread:0x6fe49869 run>"}](https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71/comment/61ce35647cb96c3f9225ea34)

Comment · Article · Dec 30, 2021 · [How to calculate bandwidth use with SNMP and Logstash](https://hashnode.com/posts/how-to-calculate-bandwidth-use-with-snmp-and-logstash/5fe21d87c65ad56bef3a2f71)