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Telegraf no more working when changing ip adress in DNS name of InfluxDB server #3648

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sebastien-prudhomme opened this issue Jan 9, 2018 · 3 comments · Fixed by #3924
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Telegraf no more working when changing ip adress in DNS name of InfluxDB server #3648

sebastien-prudhomme opened this issue Jan 9, 2018 · 3 comments · Fixed by #3924
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@danielnelson
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area/influxdb bug unexpected problem or unintended behavior
Milestone
1.6.0

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@sebastien-prudhomme
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sebastien-prudhomme commented Jan 9, 2018 •
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System info:

Telegraf v1.5.0 on CentOS 6.5

Steps to reproduce:

  1. Start Telegraf pointing to influxdb.example.com (a CNAME to gateway.example.com, which is a reverse-proxy to the real InfluxDB server)
  2. Telegraf works fine.
  3. Change IP address of gateway.example.com
  4. Wait several minutes/hours so that DNS servers and DNS cache take into account the new IP address
  5. curl -v http://influxdb.example.com/ping works fine on the server with the Telegraf agent
  6. Telegraf does not work anymore except if you restart it

Seems that IP address of the InfluxDB server is cached by the Telegraf agent (or perhaps a Go library) and never updated.
@danielnelson danielnelson added this to the 1.6.0 milestone Jan 9, 2018
@danielnelson danielnelson added the bug unexpected problem or unintended behavior label Jan 9, 2018
@jesus-sayar
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I have the same problem!

@andor-pierdelacabeza
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Obey the TTL!

@danielnelson
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@andor-pierdelacabeza lol

@russorat russorat modified the milestones: 1.6.0, 1.7.0 Feb 1, 2018
@danielnelson danielnelson self-assigned this Mar 20, 2018
@danielnelson danielnelson modified the milestones: 1.7.0, 1.6.0 Mar 20, 2018
@danielnelson danielnelson mentioned this issue Mar 22, 2018
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@danielnelson danielnelson

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area/influxdb bug unexpected problem or unintended behavior
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Milestone
1.6.0
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Add new line protocol parser and serializer, influxdb output influxdata/telegraf
5 participants
@sebastien-prudhomme @danielnelson @jesus-sayar @andor-pierdelacabeza @russorat