You recieve error "Server Response Code:400" after Manager installation or Apache version change:
You may see the following error in your catalina.<datestamp>.log or in tomcat*-stderr.<datestamp>.log:
INFO [http-nio-8080-exec-9] org.apache.coyote.http11.AbstractHttp11Processor.process Error parsing HTTP request header
Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.
You may see the following error in your localhost_access_log.<datestamp>.txt:
"GET null null" 400 -
The problem can be seen in SAP Enable Now Manager version 10, 10 SP1 or SAP Workforce Performance Builder Manager version 9.4.x or 9.5.x with Apache versions:
- 7.0.x where the version is greater than 7.0.72
- 8.0.x where the version is greater than 8.0.37
- 8.5.x where the version is greater than 8.5.11
- 9.0.x or greater
Workforce Performance Builder, Manager, Apache Tomcat, 400, error, response code, install, upgrade, SAP Enable Now , KBA , KM-WPB , SAP Enable Now , KM-WPB-MGR , SAP Enable Now - Manager , Bug Filed
About this pageThis is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).
Search for additional results
Visit SAP Support Portal's SAP Notes and KBA Search.