Deployment Architecture

Separate UF buffers for tcpout groups, is this possible?

chris24747
Explorer

Hi all,

I have 2 tcpout groups on my servers sending data to 2 distinct sets of indexers. A number of servers recently lost access to one of those 2 indexer (tcpout) groups. For the sake of an example, lets say tcpout group 1 was available and group 2 was not.

During this time we saw the Universal forwarders buffering data for group 2 as it's not available. This then filled the buffer and paused the UF - so no data was being sent to group 1, despite it being available.

We have useAck set to true for both groups and the log files caught up, but we lost any 'live' data (generated from Powershell and Perfmon).

My question is: is it possible to have separate buffers on 2 different tcpout groups? So that the filling of one, doesn't affect the other. Failing this, I expect it'll be a case of simply increasing the buffer value to allow more tolerance to failure. However, given the volume of traffic, it wouldn't take long to fill even a large buffer.

Any other suggestions?

0 Karma
Get Updates on the Splunk Community!

Announcing Scheduled Export GA for Dashboard Studio

We're excited to announce the general availability of Scheduled Export for Dashboard Studio. Starting in ...

Extending Observability Content to Splunk Cloud

Watch Now!   In this Extending Observability Content to Splunk Cloud Tech Talk, you'll see how to leverage ...

More Control Over Your Monitoring Costs with Archived Metrics GA in US-AWS!

What if there was a way you could keep all the metrics data you need while saving on storage costs?This is now ...