Upgrading to 2.4.20 allow you to disable the one node dynamically on the httpd side and then bring down the node. > On Apr 20, 2016, at 8:10 AM, Wayne W <waynemailinglists@xxxxxxxxx> wrote: > > Hi, > > I'm seeing that with Apache 2.4.12 on Solaris when setup with mod_proxy to 2 tomcat instances when we bring down 1 node for maintenance the first client to try and access that node gets a Internal Server Error. Any requests after that (and for other sessions) are balanced correctly onto the other node. > > Is this normal? > Is there a way for it to just balance over to the other node without returning the error? > > My conf: > <VirtualHost *:80> > ServerName > somedomain.com > > ProxyPass /share > http://127.0.0.1:8181/share > > > ProxyPass / balancer://cluster/ stickysession=JSESSIONID nofailover=Off > > # define the balancer, with http and/or ajp connections > <Proxy balancer://cluster/> > Order allow,deny > Allow from all > BalancerMember ajp:// > 127.0.0.1:8010 > route=g1 > BalancerMember ajp:// > 127.0.0.1:8011 > route=g2 > </Proxy> > </VirtualHost> > > > I see in the apache logs the following: > > Wed Apr 20 11:04:11.739700 2016] [proxy_ajp:error] [pid 58313] [client 10.12.32.251:56869] AH00992: ajp_read_header: ajp_ilink_receive failed, referer: https://example.com > [Wed Apr 20 11:04:11.739713 2016] [proxy_ajp:error] [pid 58313] (120006)APR does not understand this error code: [client 10.12.32.251:56869] AH00878: read response failed from 127.0.0.1:8010 (127.0.0.1), referer: http://example.com > [ --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx