# Sentry Node Architecture Overview

**URL:** <https://forum.cosmos.network/t/sentry-node-architecture-overview/454>\
**Category:** Validation\
**Created:** [July 11, 2018, 10:04pm UTC](https://forum.cosmos.network/t/sentry-node-architecture-overview/454 "2018-07-11T22:04:58Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![melea-trust](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.cosmos.network/melea-trust/32/90_2.png) [@melea-trust](https://forum.cosmos.network/u/melea-trust)\
**Post date:** [July 13, 2018, 7:56pm UTC](https://forum.cosmos.network/t/sentry-node-architecture-overview/454/14 "2018-07-13T19:56:39Z")

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hi, there. thanks.

\*\*when you said. \*\*  
**One thing I don’t like is that a sentry node only becomes useful when the validator node is updated (Sentry node added to persistent\_peers on the validator.)**

the sentry is useful all time, because is connected almost to more 40 peers all time, and the validator is only connected to the sentrys example 4.

i am missing some translation maybe. help me to understand. 😉

and in the other hand

**when you said: “Currently, this is only possible during a maintenance schedule of the validator, since it requires the validator to be restarted. (So, I wouldn’t automate it just yet.)”**

is not automate yet, but when validator lost peers form peersisten\_peer list, need to connect automate again for my undertand and for logical to the sentrys for the peersitent\_peer: list. now is one issue open about this, but is in Terdermint.  
for that now sentrys not sure is going to work in the next release gaia-7000 for this

> [@Gaia-6002 Postmortem](https://forum.cosmos.network/t/gaia-6002-postmortem/463/5):
>
> Just for my understands. This issue is open and now in Tendermint; so, is not resolved yet. for the gaia-7000 for example. And is related to the update from Terdermint and not for Cosmos. I am ok? Because if i am ok. Validator need to set Pex=true In gaia-7000. And waith for the update from Tendermint for can uses Pex=false For work with sentrys, and don’t get off-line Just that.

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