503 Errors when using mod_spdy with AJP proxy

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What version/revision number of mod_spdy are you using?

mod_spdy/0.9.4.3-420

What version of Apache are you using, and on what operating system?  (Use
`apache2ctl -v` to check.)

Apache/2.2.29

What other Apache modules are you using?  (Use `apache2ctl -M` to check.)

 core_module (static)
 mpm_prefork_module (static)
 http_module (static)
 so_module (static)
 auth_basic_module (shared)
 auth_digest_module (shared)
 authn_file_module (shared)
 authn_alias_module (shared)
 authn_anon_module (shared)
 authn_dbm_module (shared)
 authn_default_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 authz_owner_module (shared)
 authz_groupfile_module (shared)
 authz_dbm_module (shared)
 authz_default_module (shared)
 ldap_module (shared)
 authnz_ldap_module (shared)
 include_module (shared)
 log_config_module (shared)
 logio_module (shared)
 env_module (shared)
 ext_filter_module (shared)
 mime_magic_module (shared)
 expires_module (shared)
 deflate_module (shared)
 headers_module (shared)
 usertrack_module (shared)
 setenvif_module (shared)
 mime_module (shared)
 dav_module (shared)
 status_module (shared)
 autoindex_module (shared)
 info_module (shared)
 dav_fs_module (shared)
 vhost_alias_module (shared)
 negotiation_module (shared)
 dir_module (shared)
 actions_module (shared)
 speling_module (shared)
 userdir_module (shared)
 alias_module (shared)
 substitute_module (shared)
 rewrite_module (shared)
 proxy_module (shared)
 proxy_balancer_module (shared)
 proxy_ftp_module (shared)
 proxy_http_module (shared)
 proxy_ajp_module (shared)
 proxy_connect_module (shared)
 cache_module (shared)
 suexec_module (shared)
 disk_cache_module (shared)
 cgi_module (shared)
 version_module (shared)
 fcgid_module (shared)
 ssl_module (shared)
 pagespeed_module (shared)
 spdy_module (shared)

What browser version did you use to access the mod_spdy server?  On what
operating system? What flags was the browser invoked with?  (For
Chrome/Chromium, go to about:version to check.)

Chome MacOS 39.0.2171.71 (Official Build)


What steps will reproduce the problem?
1. Setup server with AJP and Tomcat
2. Load server
3. 503 errors start appearing

What is the expected result? What do you see instead?
Page should load instead of showing 503



Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 16 Dec 2014 at 7:11