Slow HEC server ingestion thruput

[hrawat]

Also <protocol>://<host>:8088/services/collector/health timing out.

[hrawat]

This issue single threaded HEC server( not honoring dedicatedIoThreads) is resolved by 8.1.7 and above, 8.2.4 and above, 9.0.x

[hrawat]

Correction: Only 8.1.x and 8.2.x so far has single threaded HEC receiver.  8.0.x is not impacted by dedicatedIoThreads regression.

[hrawat · Accepted solution]

Version 8.1.x and 8.2.x so far has single threaded HEC receiver.  The reason for that is dedicatedIoThreads config in inputs.conf is ignored. 

dedicatedIoThreads = <integer>

 Until it get's restored in 8.2.4, you may want to stay on latest 7.3.x/8.0.x version for HEC receiver.