Apache replying with 417 Expect failed even after removing Request Header Expect

[i***@gmail.com]

Scenario is this, while running performance testing over web server apache, there are some requests which end up in 417 error.

Using mod headers, I added the below snippet to my config file

RequestHeader unset Expect early

And I noticed improvement, but after 25 minutes apache started to throw 417 again, I have no idea what else to try, nor understand why apache is showing that error again if I'm removing header already.
Any one can help?

Apache version: Apache/2.4.6
OS: Red Hat Enterprise Linux 7.6 (Maipo)

[Luuk]

Post by i***@gmail.com
Scenario is this, while running performance testing over web server apache, there are some requests which end up in 417 error.
Using mod headers, I added the below snippet to my config file
RequestHeader unset Expect early
And I noticed improvement, but after 25 minutes apache started to throw 417 again, I have no idea what else to try, nor understand why apache is showing that error again if I'm removing header already.
Any one can help?
Apache version: Apache/2.4.6
OS: Red Hat Enterprise Linux 7.6 (Maipo)

seems related to:
https://bz.apache.org/bugzilla/show_bug.cgi?id=46709

?