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Question

Cribl leader and worker node on same VM

  • March 11, 2025
  • 3 replies
  • 36 views
A

I have installed cribl standalone on a VM , but need to change it to leader ..

Do I need a worker node or only a leader can do the processing work as a stream ?

If worker node is required, can the same VM be a leader and worked node together ?

    3 replies

    Jon Rust
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    • Jon Rust
    • Employee
    • March 11, 2025

    The Leader does not process any data. Minimally 1 Worker Node will be required to do anything more than tinker with configs. In theory you can install both on one server, but you will have some port conflicts you'll need to resolve.

    A
    • Arnold Johnson
    • Author
    • New Participant
    • March 11, 2025

    Thanks Jon for the response ..

    If I have to install Leader and worker on same VM , Do I need to do two installations of Cribl stream ?

    Jon Rust
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    • Jon Rust
    • Employee
    • March 11, 2025

    Yes, you will need 2 installs. Install the Leader normally, following the instructions. For the worker you're going to need a new directory (/opt/cribl-worker?) and new ports: 9000 and 4200 will already be used by the Leader. This isn't something we recommend doing, so we don't have instructions documented for it. You might also check out using docker. Probably makes it easier.

    Compose example:

    version: "3.7"services:  leader:  image: cribl/cribl:latest  ports:  - 9000:9000  environment:  CRIBL_DIST_MODE: master  CRIBL_DIST_MASTER_URL: tcp://criblmaster@leader:4200  hostname: leader  worker1:  image: cribl/cribl:latest  ports:  - "9997:9997"  - "8088:8088"  - "10090:10090"  - "1514:1514"  - "1514:1514/udp"  environment:  CRIBL_DIST_MODE: worker  CRIBL_DIST_MASTER_URL: tcp://criblmaster@leader:4200  hostname: worker1
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