Confluence cannot save edited document. Why?

[Aleksey Nazimov]

Everything is fine. Unfortunately, I have the following error in my browser:

WebSocket connection to 'ws://conf.numamo.net/synchrony-proxy/v1/bayeux-sync1' failed: Error during WebSocket handshake: Unexpected response code: 200

My apache == apacheHouse 2.4.xx. It works perfectly except web sockets. My virtual host settings:

<VirtualHost *:80>
ServerName conf.numamo.net:80
ProxyRequests Off

<Proxy *>
Require all granted
</Proxy>

ProxyPass /synchrony http://192.168.1.11:8072/synchrony
<Location /synchrony>
Require all granted
RewriteEngine on
RewriteCond %{HTTP:UPGRADE} ^WebSocket$ [NC]
RewriteCond %{HTTP:CONNECTION} Upgrade$ [NC]
RewriteRule .* ws://192.168.1.11:8072%{REQUEST_URI} [P]
</Location>

ProxyPass "/" "http://192.168.1.11:8072/"
ProxyPassReverse "/" "http://192.168.1.11:8072/"
<Location "/">
Require all granted
</Location>

</VirtualHost>

[Aleksey Nazimov · Accepted solution]

Tested by experiments:

1) Downloading ApacheHouse 2.4

2) Making basic settings in the httpd.conf (https://confluence.atlassian.com/kb/proxying-atlassian-server-applications-with-apache-http-server-mod_proxy_http-806032611.html?_ga=2.136404467.215557797.1549740003-711471428.1547848841)

3) Setting virtual hosts in the httpd-vhosts.conf

# Default virtual host!
<VirtualHost _default_:80>
DocumentRoot "${SRVROOT}/htdocs"
</VirtualHost>

# Virtual host for "xxx.numamo.net"
<VirtualHost *:80>
ServerName xxx.numamo.net:80
ProxyRequests Off

<Proxy *>
Require all granted
</Proxy>

ProxyPass /synchrony http://InternalServerIp:8091/synchrony
<Location /synchrony>
Require all granted
RewriteEngine on
RewriteCond %{HTTP:UPGRADE} ^WebSocket$ [NC]
RewriteCond %{HTTP:CONNECTION} Upgrade$ [NC]
RewriteRule .* ws://InternalServerIp:8091%{REQUEST_URI} [P]
</Location>

ProxyPass "/" "http://InternalServerIp:HttpPort/"
ProxyPassReverse "/" "http://InternalServerIp:HttpPort/"
<Location "/">
Require all granted
</Location>

ErrorLog "${SRVROOT}/logs/forConfluence/error.log"
CustomLog "${SRVROOT}/logs/forConfluence/access.log" common
</VirtualHost>

# Virtual host for redirecting to "xxx.numamo.net"
<VirtualHost *:80>
ServerName www.xxx.numamo.net:80
DocumentRoot "${SRVROOT}/htdocs/forConfluence"
<Directory "/">
Require all granted
</Directory>
ErrorLog "${SRVROOT}/logs/forConfluence/error.log"
CustomLog "${SRVROOT}/logs/forConfluence/access.log" common
</VirtualHost>

4) Setting confluence embedded Tomcat server.xml

<Connector port="HttpPort"
maxThreads="150"
minSpareThreads="25"
connectionTimeout="20000"
enableLookups="false"
maxHttpHeaderSize="8192"
protocol="HTTP/1.1"
useBodyEncodingForURI="true"
redirectPort="443"
acceptCount="100"
disableUploadTimeout="true"
proxyName="xxx.numamo.net"
proxyPort="80"
scheme="http"
relaxedPathChars="[]|" relaxedQueryChars="[]|{}^&#x5c;&#x60;&quot;&lt;&gt;"
/>

ATTENTION: "xxx.numamo.net" is the simplest example of my subdomain. "InternalServerIp" can be set by any address which is available for Apache->Tomcat connection. "HttpPort" can be set in the same way. Alternatively, If you don't have big problems with ConfluenceSynchrony then do not make any changes with the port # 8091. This port is strongly fixed as a default

[Dave Theodore [Coyote Creek Consulting]]

Which version of Confluence? I would recommend version 6.2 or newer, as these later versions allow Tomcat to proxy Synchrony and will save you this type of headache. Assuming you're on a modern version of Confluence later than 6.2 and not using Data Center, there is no need for any of this. Just proxy to Tomcat via 8090 per the Atlassian docs. 

[Aleksey Nazimov]

Thanks a lot! I've corrected myself. I do not why, but It starts to work when all WS ports are set to 8091. See my corrections:

<VirtualHost *:80>

....

ProxyPass /synchrony http://192.168.1.11:8091/synchrony
<Location /synchrony>
Require all granted
RewriteEngine on
RewriteCond %{HTTP:UPGRADE} ^WebSocket$ [NC]
RewriteCond %{HTTP:CONNECTION} Upgrade$ [NC]
RewriteRule .* ws://192.168.1.11:8091%{REQUEST_URI} [P]
</Location>

...

</VirtualHost>

According to the SYNCHRONY documents 8091 is a default value for the connected port.

According to my practical experience (posted above), this default port cannot be changed by virtual host configurations.

[Dave Theodore [Coyote Creek Consulting]]

Yes, Synchrony listens on 8091 by default.  I'm glad you got it sorted out!