Task/Goal

Let Confluence work with synchrony feature enabled !

Collaborative editing for Confluence Server
cf. https://developer.atlassian.com/confdev/collaborative-editing-for-confluence-server

with Confluence synchrony on --> Confluence freezes immediately after creating new page ???
without synchrony --> Confluence works but we want co-edit feature ...

... maybe related with this ...
https://confluence.atlassian.com/jirakb/unable-to-create-issue-after-upgrading-to-jira-7-815588418.html

Prerequisite

installed Oracle Linux 7.3
- cat /etc/oracle-release
installed nginx 1.10.3
- nginx -V
installed JIRA 7.3
installed Confluence 6.0

NGINX configuration

/etc/nginx/conf.d/confluence.conf

server {
    server_name confluence-server-name;

    send_timeout 180;

    location /synchrony {
        proxy_set_header        Host $host;
        proxy_set_header        X-Forwarded-Host $host;
        proxy_set_header        X-Forwarded-Server $host;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Real-IP  $remote_addr;
        proxy_pass              http://127.0.0.1:8091;
        proxy_http_version      1.1;
        proxy_set_header        Upgrade $http_upgrade;
        proxy_set_header        Connection "upgrade";
    }
 
    location / {
        proxy_set_header        Host $host;
        proxy_set_header        X-Forwarded-Host $host;
        proxy_set_header        X-Forwarded-Server $host;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Real-IP  $remote_addr;
        proxy_pass              http://127.0.0.1:8090;
    }
}

/etc/nginx/conf.d/jira.conf

server {
    server_name jira-server-name;
        
    location / {
        proxy_set_header        Host $host;
        proxy_set_header        X-Forwarded-Host $host;
        proxy_set_header        X-Forwarded-Server $host;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Real-IP  $remote_addr;
        proxy_pass              http://127.0.0.1:8080;
    }
}

tomcat configuration

point
- server.xml : add proxyName= and proxyPort= parameters in

/usr/local/atlassian/confluence/conf/server.xml

        <Connector port="8090" connectionTimeout="20000" redirectPort="8443"
                maxThreads="48" minSpareThreads="10"
                enableLookups="false" acceptCount="10" debug="0" URIEncoding="UTF-8"
                protocol="org.apache.coyote.http11.Http11NioProtocol"
                proxyName="confluence-server-name" proxyPort="80" />

/usr/local/atlassian/jira/conf/server.xml

        <!-- Nginx Proxy Connector -->
        <Connector port="8080" maxThreads="150" minSpareThreads="25" connectionTimeout="20000"
          enableLookups="false" maxHttpHeaderSize="8192" protocol="HTTP/1.1"
          useBodyEncodingForURI="true" redirectPort="8443" acceptCount="100" disableUploadTimeout="true"
          proxyName="jira-server-name" proxyPort="80"/>

        <!-- Standard HTTP Connector -->
        <Connector port="8082" maxThreads="150" minSpareThreads="25" connectionTimeout="20000"
          enableLookups="false" maxHttpHeaderSize="8192" protocol="HTTP/1.1"
          useBodyEncodingForURI="true" redirectPort="8443" acceptCount="100" disableUploadTimeout="true"/>

Done