New Install of WildFly 10.1.0 - Connection to Server Lost - Help

[jbkev]

The goal is to install Dashbuilder or something similar so I may graph and create reports from customer survey results.  Please let me know if you're aware of a better solution.  I got tomcat and Dashboard installed but I get a blank screen after logging in to Dashboard, so I decided to try WildFly / dashboard after seeing JbPM.  I got WildFly installed and got connected to MySQL but I get the error, "Lost Connection to the Server" when I click on anything in the console. 

I'm using Centos 7, SSL and Apache 2.4 for two domains at one IP.  I also installed mod_jk.  The two websites are using php and mysql and I'm only attempting to install this to improve the reporting features of one website. Can you please help me get this securely installed?  Or is Wildfly much more than I need?

The attached image shows the error I received when I tried to install dashbuilder and the log.

I've used the links below for the install and mod_k.

Java Development with WildFly on CentOS 7

Installing mod_jk on apache httpd in CentOS 6.x/7.x – Food Concerns

https://www.digitalocean.com/community/tutorials/how-to-encrypt-tomcat-8-connections-with-apache-or-nginx-on-centos-7

Thanks,

Kevin

[mayerw01]

Which version of Dashbuilder are you using?

But you should start WildFly with the standalone-full.xml configuration

[jbkev]

Thanks for replying.  I just realized that I had attempted to install the Tomcat version of Dashbuilder that I download 10 days ago. 

I just successfully imported Dashbuilder 6.2 but I lost a connection.  I don't know enough about the software to know where to look. Image attached.

Thanks for helping.

[mayerw01]

I am not aware that there is a 6.2 version for WildFly-10.  Did you deploy dashbuilder-6.2.0.Final-wildfly8.war? This version will probably not work on WildFly 10.

I'd suggest that you use 6.5 instead (eg dashbuilder-6.5.1-SNAPSHOT-wildfly10.war)

[jbkev]

Thanks. I was wrong.  I installed dashbuilder-6.2.0.Final-wildfly8.war.  I found dashbuilder-6.4.0.Final-wildfly8.war at this link.  Dashbuilder - Binaries Download.

I found 6.5 as I was typing this reply.   Thanks.  Index of /maven2/org/kie/dashbuilder-docs

I also noticed that a script I used from this link Installing Wildfly 10.0.0 on Centos 7.1 · MAX-UMD/versastack.community Wiki · GitHub  changed some of the ports in the standalone.xml but the changed ports did not align with the default ports in other files.

I think there is an issue other than dashbuilder.  WildFly launches but I get a connection error from almost everything I click on.   Unfortunately, I don't have experience in java or being a system admin.

socket-binding name="ajp" port="${jboss.ajp.port:8009}

socket-binding name="http"port="${jboss.http.port:8080}

socket-binding name="https" port="${jboss.https.port:8443}

Changed to

socket-binding name="ajp" port="${jboss.ajp.port:28009}"

socket-binding name="http" port="${jboss.http.port:28080}

socket-binding name="https" port="${jboss.https.port:28443}

For example:

# https://docs.jboss.org/jbossas/docs/Clustering_Guide/beta422/html/clustering-http-nodes.html

### workers.apache_log=/var/log/httpd

worker.list=worker1,status

worker.worker1.type=ajp13

worker.worker1.host=127.0.0.1

worker.worker1.port=8009

https://www.digitalocean.com/community/tutorials/how-to-encrypt-tomcat-8-connections-with-apache-or-nginx-on-centos-7

vi /etc/httpd/conf.d/ssl.conf

   <VirtualHost _default_:443>

   # Added for mod_jk

   JkMount /* worker1

** Create a mod_jk.conf file in your conf.d folder:

vi /etc/httpd/conf.d/mod_jk.conf

# To avoid error AH00558: httpd: Could not reliably

# determine the server's fully qualified domain name

# replace 1.2.3.4 with your server IP

ServerName 127.0.0.1

# Load mod_jk

LoadModule jk_module "/etc/httpd/modules/mod_jk.so"

JkWorkersFile /etc/httpd/conf/workers.properties

# Where to put jk logs

JkLogFile     /var/log/httpd/mod_jk.log

# Set the jk log level [debug/error/info]

JkLogLevel    info

# Select the timestamp log format

JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "

# JkOptions indicates to send SSK KEY SIZE

# JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories

# JkRequestLogFormat

JkRequestLogFormat "%w %V %T"

# JkEnvVar SSL_CLIENT_V_START worker1

# Add shared memory.

# This directive is present with 1.2.10 and

# later versions of mod_jk, and is needed for

# for load balancing to work properly

JKShmFile     /var/tmp/jk-runtime-status

vi /etc/tomcat/server.xml

    <Connector port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               address="127.0.0.1"

               redirectPort="8443" />

    <!-- Define an AJP 1.3 Connector on port 8009 -->

    <Connector port="8009" address="127.0.0.1" protocol="AJP/1.3" redirectPort="8443" />

[jbkev]

I reinstalled wildfly and I get the same error.

[jbkev]

I got it to work on Tomcat by downloading tomcat-dbcp-7.0.69.jar from https://repo1.maven.org/maven2/org/apache/tomcat/tomcat-dbcp/7.0.69/ and copying it to /usr/share/java/tomcat. I hope this helps someone else because this took a few days to resolve.

[mayerw01]

As already mentioned you should use dashbuilder version 6.5 for WildFly 10.

I'd also suggest to start with the default configuration (without changing ports).

The "Connection error" could also be caused by "dirty caches".

You should therefore clear the browser cache first.

[mayerw01]

I am not sure how this relates to WildFly.

(but these jars should be placed into the lib directory of tomcat and the tomcat-dbcp.jar should already be available after a standard installation).

[jbkev]

Thanks.   I had both tomcat and wildfly installed.  I found out where I foudn 6.2.  Googling dashbuilder shows a download link to  Dashbuilder - Binaries Download

I think I installed 6.4 because I could not determine how to install 6.5.

I have it installed and and can connect to mysql but I' can only import 2 lines of a CSV file.  I'm going post that in another thread.

I used tomcat, dashbuilder, and mod_jk and I found a mistake in the documentation for the JkMount. 

Thanks for helping.