Deployment Architecture

Search head - Search peer communication direction in distributed enviroment

tdubicz
Engager

Hi all,

I have a simple question:
In a distributed environment (without SH cluster), what happens when I do a distributed search?

As I understand the SH opens a connection to the search peer(s), send it/them the search bundle, the search peer(s) execute(s) the search, but then what happens?
The search results send back to the SH trough the same connection (what initiate the SH earlier) or the search peer(s) initiate(s) a new connection?

In nutshell my question is:
In a distributed environment during a distributed search from its start to its end, Do exist only SH->search peer communication direction or not?

Thanks in advance!
Tamas

0 Karma
1 Solution

nickhills
Ultra Champion

Yes. All traffic between SH and Peers is over the rest api.

This means SH communicates with the Peer on tcp:8089.
The peer will send search result data to the SH as the response to the web services request.

It’s TCP so it’s bi-directional, but the peer will never initiate a socket to the SH.
(Unless the SH is also a DS or Lic Master)

If my comment helps, please give it a thumbs up!

View solution in original post

nickhills
Ultra Champion

Yes. All traffic between SH and Peers is over the rest api.

This means SH communicates with the Peer on tcp:8089.
The peer will send search result data to the SH as the response to the web services request.

It’s TCP so it’s bi-directional, but the peer will never initiate a socket to the SH.
(Unless the SH is also a DS or Lic Master)

If my comment helps, please give it a thumbs up!

tdubicz
Engager

Thank You kindly, sir! 🙂

0 Karma
Get Updates on the Splunk Community!

.conf25 Community Recap

Hello Splunkers, And just like that, .conf25 is in the books! What an incredible few days — full of learning, ...

Splunk App Developers | .conf25 Recap & What’s Next

If you stopped by the Builder Bar at .conf25 this year, thank you! The retro tech beer garden vibes were ...

Congratulations to the 2025-2026 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...