All Apps and Add-ons

Splunk App for VMware: "ERROR [HydraWorkerNode] Incorrect number of heads" - Any idea what could cause this?

Plotkowski
Path Finder

I am trying to set up the Splunk App for VMware
I installed the DCN from the .ova, installed the VMware app on my indexer/search head.

Credentials are correct, green ticks everywhere.
But when I run the scheduler, I get error messages from the hydraworker:

ERROR [ta_vmware_collection_scheduler://puff] [HydraWorkerNode] Incorrect number of heads=3 on node=https://XXX:8089, actual_heads=2, trying to bring number up to correct value

The value for actual_heads is sometimes different (0, 1, or 2)
No matter what value I set at "worker processes" for the DCN, I always get these errors and no data is coming in at all.

Do you have any idea what could cause this problem? Is number of heads the number of CPU cores allocated to the virtual machine DCN?

0 Karma

kserra_splunk
Splunk Employee
Splunk Employee

The number of worker process should be set to , # of cpu cores - 1

0 Karma

trapti_splunk
Splunk Employee
Splunk Employee

Is your Data Collection Node added as DCN from multiple schedulers? Or is it acting as DCN for multiple apps?

0 Karma

Plotkowski
Path Finder

Only 1 DCN, 1 scheduler and only VMWare app.

0 Karma
Get Updates on the Splunk Community!

Enterprise Security Content Update (ESCU) | New Releases

In January, the Splunk Threat Research Team had one release of new security content via the Splunk ES Content ...

Expert Tips from Splunk Professional Services, Ensuring Compliance, and More New ...

Splunk Lantern is a Splunk customer success center that provides advice from Splunk experts on valuable data ...

Observability Release Update: AI Assistant, AppD + Observability Cloud Integrations & ...

This month’s releases across the Splunk Observability portfolio deliver earlier detection and faster ...