I want to check whether my JBoss EAP 7 is started via jboss-cli.
With JBoss EAP 6 I could use the following command
jboss-cli.bat -c --commands="read-attribute server-state"
While the server is starting, the response is starting. When the server booted successfully, the response is running.
After migrating to JBoss EAP 7.0, the same command returns the following message, while the server is starting. Failed to connect to the controller: Timeout waiting for the system to boot. When the server started successfully, the usual message running is returned.
My question is: Why can't the jboss-cli connect to the server until it started?
In EAP 7.x and EAP 6.3.0 or later, you can configure jboss.as.management.blocking.timeout system property to tune timeout (seconds) waiting for service container stability.
Try setting this parameter once connected via CLI.
Since EAP 6.3.0.ER8 there is a new class in jboss.as.controller: BlockingTimeout. This class loads the value of system property jboss.as.management.blocking.timeout or defaults to 300 (seconds).
Note: This property is not a timeout per deployment but a timeout on container stability and if jboss.as.management.blocking.timeout is reached during startup then all applications will be undeployed and the container shutdown. The reasoning behind this is that having a half-working server is potentially dangerous as you may not notice major failures.
Thus if your application is unable to load within the given timeout value,CLI will throw the errorFailed to connect to the controller: Timeout waiting for the system to boot
jboss-cli.sh --connect --controller=IP:PORT --timeout=40000 configure timeouts value to be more then the amount of time your server takes to start.
Actual command line is
./jboss-cli.sh --connect command=":read-attribute(name=server-state)"
Related
I have deployed a simple Servlet web application on Wildfly 8.2.1 on RHEL 6.9. This application just takes post request and respond with 200 OK.
Now when the client(java client using apache-common-http client) is posting data on the web application. The web application is accepting the request but many of the requests are failing also with ERROR "Caused by java.net.ConnectException: Connection timed out (Connection timed out)" at the client side.
Here my assumption is, Wildfly has some default value for max Http connection which can be opened at any point in time. if further requests are coming which require opening a new connection, web server is rejecting them all.
could anyone here please help me with below question:
How can we check live open HTTP connections in RHEL 6.9. I mean command in RHEL to check how many connection open on port 8080?
How can we tweak the default value of the HTTP connection in wildfly?
Does HTTP connection and max thread count linked with each other. If So, Please let me know how they should be updated in wildfly configuration(standalone.xml).
How many requests can be kept in the queue by Wildfly? what will be happening to the request coming to
wildfly server if the queue is full.
NOTE: It is a kind of load testing for the webserver where traffic is high, not sure about exact value but it's high.
You're getting into some system administration topics but I'll answer what I can. First and foremost - Wildfly 8.2.1 is part of the very first release of Wildfly and I'd strongly encourage upgrading to a newer version.
To check the number of connections in a Unix-like environment you'll want to use the netstat command line. In your case, something like:
netstat -na | grep 8080 | grep EST
This will show you all the connections that are ESTABLISHED to port 8080. That would give you an snapshot of the number of connections. Pipe that to wc to get a count.
Next, finding documentation on Wildfly 8.2.1 is a bit challenging now but Wildfly 8 uses Undertow for the socket IO. That in turn uses XNIO. I found a thread that goes into some detail about configuring the I/O subsystem. Note that Wildfly 8.2.1 uses Undertow 1.1.8 which isn't documented anywhere I could find.
For your last two questions I believe they're related to the second one - the XNIO configuration includes configuration like:
<subsystem xmlns="urn:jboss:domain:io:1.0">
<worker name="default" io-threads="5" task-max-threads="50"/>
<buffer-pool name="default" buffer-size="16384" buffers-per-slice="128"/>
</subsystem>
but you'll need to dig deeper into the docs for details.
In Wildfly 19.1.0.Final the configuration looks similar to the code above other than the version is now 3.0.
I am connecting 2 different application using web-logic jms bridge.
But when I check for bridge its showing in warning state and error is fail to connect target. and after some time server is go in warning state.
Can anyone help me in this?
Exception [JMSException045028] the message threshold for jms server
***** has been exceeded more than one hour.
using weblogic 12c
Background
I am using the Oracle JDeveloper Studio with SOA installed as my IDE. In JDeveloper I want to create a connection to a remote Weblogic server.
The remote server is running on my local machine, and I refer to it as remote to distinguish it from the Integrated Weblogic Server that comes with JDeveloper.
After reading this answer I attempted to add the following lines to the Windows 10 host file:
#
127.0.0.10 localhost2
::1 localhost2
These two pictures show the Application Server setup in JDeveloper: Picture 1, Picture 2
However I still receive the following error:
Server excetion is :
Connection refused from server
When create new server on random port such as 7013 and 7014 for ssl, test connection return:
Testing HTTP Authentication ... failed
Connection refused: connect
Testing JSR-160 Runtime ... failed
Cannot establish connection.
Testing JSR-160 DomainRuntime ... skipped
Testing JSR-88 ... skipped
Testing JSR-88-LOCAL ... skipped
Testing Server MBeans Model ... skipped
Testing App Controller ... skipped
Testing JSR-88-DEP-MGR ... skipped
Testing JSR-88-DEP-MGR-LOCAL ... skipped
Testing JNDI ... skipped
Testing JSR-160 Edit ... skipped
Testing HTTP ... failed
Connection refused: connect
0 of 12 tests successful.
Can anyone suggest some troubleshooting steps here?
Clarification
I need to clarify a few points to guide you to the correct answer.
Are you sure this is a separate Weblogic server running on localhost, not the Integrated Weblogic Server?
Are you sure the Integrated Weblogic server is not running?
Are you sure the Weblogic server you are attempting to connect to is running?
Troubleshooting
General Recommendations
Always run JDeveloper as Administrator
Located an utilize the *-diagnostic.log file and the standard out file
Utilize the JPS utility to see if the WLS process is running
Utilize the EM console to see what interface your server is listening on
Integrated Weblogic or Standalone Weblogic
Firstly, because you are new to Oracle SOA I need you to clarify if you have a Weblogic server installed locally separate from your Oracle BPM Studio ( JDeveloper ) IDE.
When creating a local SOA environment, JDeveloper comes with an Integrated Weblogic Server pre-installed. You don't need to install the Weblogic server separately.
To determine if you have a standalone Weblogic server installed on your local machine you could do a few things.
Do a search for startWebLogic.cmd. If that file is somewhere other than beneath %APPDATA% you likely have a standalone server
Secondly, with 11g ( maybe 12c ) you can check Add or Remove Programs to see if the installation is listed
You could also check to see if it's running by running a jps command in command prompt. This shows all Java processes currently running, and your Weblogic server runs as as a Java process. It will look something like the following
If you see a suspicious process you can run a jinfo <pid> to get more information about the process
You can also check Windows Services to see if you have a Weblogic service.
Most likely you don't even have a local Weblogic installed separate from JDeveloper's Integrated Server. In that case, please read the following section.
Integrated Weblogic Server
As stated before when you download Oracle BPM Studio ( JDeveloper with all the SOA plugins ) it comes with an Integrated server.
You first need to create a default domain and connection to this server.
First, open the Application Server panel.
You should now see the Application Server panel to the left side of your IDE
Remember, generally you are not installing the server here, you are just connecting to a server that is already installed from your IDE. The purpose being that you can deploy composites directly to the server from JDeveloper. Configuring the Integrated Server is a bit different, but the difference doesn't need to be explained here.
Right click on "Application Servers" and click New Application Server. This will display the following popup
Now walk through the steps of creating the default domain and server connection
Then test and finish. You should not have an integrated weblogic server running. To start the server you simply run -> Start Integrated Weblogic Server
If you Windows -> log you can see the server stdout and stderr rolling.
On windows you can also find these logs on Windows 10 by navigating to %APPDATA%\Roaming\JDeveloper\system12.2.1.3.42.170820.0914\DefaultDomain\servers\DefaultServer\logs in your system's file explorer.
Standalone Server
If for whatever reason you aren't using the Integrated Weblogic Server and instead have a standalone installation of Weblogic on your local machine you would first need to find where your Middleware Home directory is.
The environment variable is MW_HOME or ORACLE_HOME
Navigate to that directory and run startWeblogic.cmd. Then tail the out file to see if if it starts successful. From there, the process of creating a connection to the server in JDeveloper is no different than the steps listed above, except that you want to select "standalone" not "integrated".
Final Thoughts
If you want to create the Integrated Server and have already failed several times I would try the following
Stop the Integrated Server (if its running) and delete the default domain
Starting the server again (see above) will recreate the domain.
If that doesn't work delete the entire server connection and recreate. You may also want to delete the DefaultDomain folder in your %APPDATA%\JDeveloper folder
I installed Eclipse and the Jboss Tools plugin with Wildfly.
I can run Wildfly in Eclipse in non-debug mode with no problems. But when I start Wildfly in debug, I can use it for a few minutes, and then it suddenly stops processing, the server ends.
I checked the log and there's nothing. What could be wrong?
Please note the JBoss Tools 4.9.0 is validated against 2018-09 but not against 2018-12.
Do you see something in the server log when the server dies ?
We had this issue and it was because we changed our config to close the management port, which had been used to detect that the server had started. Eclipse could no longer detect that the server had started, so it shut down the process after a set time (450 seconds)
To resolve the issue, we did the following in the Eclipse's Overview panel for our JBoss Server:
Changed the Start Timeout to 30, so it would only fail if it actually couldn't start in 30 seconds rather than waiting for 450
Changed our "Server State Detectors" to detect a Web Port for Startup Poller and Process Terminated for Shutdown Poller.
Changed the Server Ports to match our new configuration
Excerpt from JBoss Community Archive
The tooling was unable to verify your server started. Our tooling has several methods to see if your server is up or not. The two most-often used methods are either "Web Port Poller" or "Management Poller".
You can see which your server is using by opening the server object (In Servers view, double-click your server) and on the right side you'll see a section on polling.
If your server adapter (fancy word for the tooling's representation of your server) is using the Management Port Poller, you should make sure your server is actually exposing the management port. For local servers this shouldn't be an issue, since local servers should automatically expose the management port. You may want to verify in the Ports section (also in the server editor) that the management port is correct. To check if the server is up, we run a management command against the server. If the server responds properly, we declare the server to be started.
If you're using the web port poller, then you may want to verify your web port is correct. To verify the server is up, the Web Port Poller opens a URL connection on {serverHost}:{webPort} and sees if we get a valid connection.
"Your request timed out" message on management console of WildFly domain mode while starting the server instance.
Its' not clear that whether an operation like server start-up or deployment has been succeeded or not.
It requires two or three restart commands from the management GUI before the domain controller correctly displays the running status of WildFly instances.
I found that "request timed out" message appears after cca 20-21 seconds when I do restart server instance.
I use WildFly version 10.1.0.Final in Domain mode.