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Posted to bugs@httpd.apache.org by bu...@apache.org on 2018/09/19 17:28:25 UTC
[Bug 62741] New: httpd fails to start with error: "undefined symbol:
ap_proxy_balancer_get_best_worker" when using mod_lbmethod_byrequests.so and
mod_proxy.so is NOT enabled
https://bz.apache.org/bugzilla/show_bug.cgi?id=62741
Bug ID: 62741
Summary: httpd fails to start with error: "undefined symbol:
ap_proxy_balancer_get_best_worker" when using
mod_lbmethod_byrequests.so and mod_proxy.so is NOT
enabled
Product: Apache httpd-2
Version: 2.4.34
Hardware: PC
OS: Mac OS X 10.1
Status: NEW
Severity: normal
Priority: P2
Component: mod_proxy
Assignee: bugs@httpd.apache.org
Reporter: adrian_salaices@intuit.com
Target Milestone: ---
The issue comes up when starting apache with the mod_lbmethod_byrequests
enabled while mod_proxy module is NOT enabled.
The error:
Cannot load lib64/httpd/modules/mod_lbmethod_byrequests.so into server:
/usr/lib64/httpd/modules/mod_lbmethod_byrequests.so: undefined symbol:
ap_proxy_balancer_get_best_worker.
There was a post describing a workaround by loading mod_proxy before the
mod_lbmethod_byrequests module, the problem with this approach is that now you
will have mod_proxy (and a matching bogus config pointing /whatever to a non
existent backend server) just to get mod_lbmethod_byrequests working.
The bottom line is that mod_proxy should NOT be a prereq for using
mod_lbmethod_byrequests as it May NOT be needed.
Please feel free to correct me if I am totally missing something
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[Bug 62741] httpd fails to start with error: "undefined symbol:
ap_proxy_balancer_get_best_worker" when using mod_lbmethod_byrequests.so and
mod_proxy.so is NOT enabled
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62741
William A. Rowe Jr. <wr...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from William A. Rowe Jr. <wr...@apache.org> ---
Change your module load order to load mod_proxy first. It is not possible
to use lbmethod modules without mod_proxy.
In 2.4.35 the load order dependency is corrected; but mod_proxy is still
necessary.
What purpose do you have in loading lbmethod's if you are not loading
mod_proxy_balancer, and ergo mod_proxy, into the given server instance?
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