Proxy issues with SCL httpd24

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I am seeing proxy issues with apache upgrade to 2.4.34 which is now at /opt/rh/httpd24/root/etc/httpd , but /etc/httpd proxy works fine.

I use Apache/Tomcat reverse proxy

Following are in the logs, could you please let me know what could be the reason for proxy errors with SCL http24 proxy ?

ssl_error_log
[Fri Nov 06 11:58:28.764192 2020] [proxy:error] [pid 37704] (70014)End of file found: [client xx.xx.x.x:56984] AH01084: pass request body failed to 1xx.xx.x.x:8180 (xx.xx.x.x)
[Fri Nov 06 11:58:28.764243 2020] [proxy_http:error] [pid 37704] [client xx.xx.x.x:56984] AH01097: pass request body failed to xx.xx.x.x:8180 (xx.xx.x.x) from xx.xx.x.x ()

modsec_audit.log
Apache-Error: [file "proxy_util.c"] [line 3835] [level 3] [status 70014] AH01084: pass request body failed to xx.xx.x.x:8180 (xx.xx.x.x)
Apache-Error: [file "mod_proxy_http.c"] [line 917] [level 3] AH01097: pass request body failed to xx.xx.x.x:8180 (xx.xx.x.x) from 2610:xx:xxxx:xxxx::8 ()

After setting LogLevl to debug I see

[Tue Nov 10 10:03:19.515972 2020] [ssl:info] [pid 6176] [remote xx.xx.xx.xx:8180] AH01998: Connection closed to child 0 with abortive shutdown (server www-aaa.com:443)
[Tue Nov 10 10:03:19.516086 2020] [proxy:error] [pid 6176] (70014)End of file found: [client xx.xx.xx.xx:41102] AH01084: pass request body failed to xx.xx.xx.xx:8180 (1xx.xx.xx.xx)
[Tue Nov 10 10:03:19.516116 2020] [proxy_http:error] [pid 6176] [client xx.xx.xx.xx:41102] AH01097: pass request body failed to xx.xx.xx.xx:8180 (10.64.68.159) from xx.xx.xx.xx ()

I have added the following but no changes:

SetEnv proxy-sendchunked 1
LimitRequestLine 16380
SetEnv proxy-nokeepalive 1

Thanks
Naren

NN

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