In previous versions of AEM, certainly in CQ 5.6 and AEM 6.0, it was possible to tail the error logs over HTTP, without connecting to the server over SSH.
For example, I could get the last 1000 lines from the error log of my AEM author instance by calling:
http://localhost:4502/bin/crxde/logs?tail=1000
This seems to no longer be possible in AEM 6.2, this path does not resolve to anything.
Is there another way I could still tail the log over HTTP?
A colleague answered this question for me on a chat so I'm putting it here to make it easier to find in the future.
There's now a neat utility in the OSGi console that allows one to view the logs as well as configure the various loggers. You can find it at http://localhost:4502/system/console/slinglog
The Appender tab provides links to the various log files that can be used to load logs over HTTP.
Here's an example request it makes:
http://localhost:4502/system/console/slinglog/tailer.txt?tail=1000&name=%2Flogs%2Ferror.log
As you can see, both the log file name and the tail parameter can be specified. You can also use grep with both simple phrases and regular expressions.
This is a built-in feature of Apache Sling.
In addition FYI, you can also find the status-slinglogs where you can perform log file downloads in a zip and logger actions in a txt to your local at /system/console/status-slinglogs
http://localhost:4502/system/console/status-slinglogs
and the direct urls for the downloading these zip files are as below
http://localhost:4502/system/console/status-slinglogs.zip
http://localhost:4502/system/console/status-slinglogs/configuration-status-20170126-183246.zip (where as 20170126-183246 is and time stamp)
You should not be looking at log files via CRXDE lite.
log files in 6.2 are project specific - better to open them from a text editor.
see attached screenshot.
Hope this helps!
Regards,
Prince
You can curl the log with e.g.:
curl -u admin:admin 'http://localhost:4502/system/console/slinglog/tailer.txt?tail=4000&name=%2Flogs%2Ferror.log'
where 4000 is the number of lines you want to get.
I recently wrote a tool named "Log Tailer Plus" to solve exactly this problem. It's entirely free/open source - Take a look at a post describing usage here : https://blogs.perficientdigital.com/2019/05/14/introducing-aem-logtailerplus/
TLDR; You can grab an AEM package from here ( https://github.com/prftryan/LogTailerPlus ) install it to your machine, and access via http://localhost:4502/log-tailer-plus (if local) or http://server:port/log-tailer-plus
This tool will allow you to follow any number of logs at once by leveraging the out of the box logging endpoint(/system/console/tailer ) as well as dynamically checking active OSGI Logging Logger configurations. Currently, highlighting is supported, but only for relatively standard logging patterns (it's done via regex).
This is a new release, works on AEM 6.2+. Enjoy
Related
I'm trying to write a script that quickly checks if our Jenkins plugins are up to date. I know that this is a built in feature in Jenkins, but for security reasons, our Jenkins instance doesn't have internet access.
I know that I can get a lot of information about a plugin, including version, from:
https://plugins.jenkins.io/<name-of-plugin>
However, I can't get it to return anything other than HTML. I could scrape the HTML for the version number, but if there is a stable API that returns JSON or similar, that would be preferred. I'm pretty sure Jenkins isn't scraping HTML to check for updates, so the API must exist. Does anyone know where it is?
There seem to be two solutions available. I ended up scraping:
https://updates.jenkins.io/download/plugins/<name-of-plugin>
The latest version is always in the second column of the second row, so scraping is trivial. It works well most of the time, but sometimes the connection is refused, which I assume might be due to of the volume of requests sent by the script.
Another option that I found is to download the following JSON file:
https://updates.jenkins.io/current/update-center.actual.json
It is currently 1.7MB and contains information about the latest version of all Jenkins plugins. It also contains meta data like dependencies, which allows your script to validate that all dependencies are satisfied.
Unfortunately I haven't found a way to download JSON for individual plugins, so you either have to scrape HTML for individual plugins or download a massive JSON for all plugins.
Update: I found the API:
https://plugins.jenkins.io/api/plugin/<name-of-plugin>
And I also found the source code and the documentation:
https://github.com/jenkins-infra/plugin-site-api
I have a Websphere Application Server v8.0, and my job requires me to change the location of my JDBC data source to different values to test in different environments. I traditionally would do this via the admin console and change the settings via the Resources > JDBC > Data sources section, but I'd like to write a script to change these settings. When I run the admin console, where do the settings get stored? I can run the console vis-a-vis the Servers tab in Eclipse (Rational Application Developer) or by navigating to localhost:9044, but I don't know where the settings are stored - which I'd need to write said script.
Can anybody help me out?
From what I remember of WebSphere Application Server, the settings are ultimately persisted to the file system - however you shouldn't be changing them this way because application server config is a messy and complicated business and by directly changing settings you risk destroying your app server.
I'd recommend checking out this redbook, particularly Chapter 8 which describes how you can configure your app server with scripts. Also I seem to recall plans to display the equivalent scripting commands in the admin console.
If it helps, I had a quick look locally and found a reference to my JDBC data source in "resources.xml" located within the websphere directory at...
<server profile root>\config\cells\<aNodeCell>\nodes\<aNode>\servers\<aServer>
In the past I've used xml config to read values for convenience, but not often to update. Instead I have made use of some of the jython script options available and can echo Jim's response to check out the options there in case there is something that would be a viable alternative.
Edit:
There is another link that may be of interest Configuring data access with wsadmin scripting. I've not used this particular feature of wsadmin myself but it does appear to show promise at first glance.
If you want to write a script, then rather than looking at file system write a proper jython script, which will do your modifications in the similar way as you would do it via console.
To make writing script easier you can use:
Command assistance in the console - the Help portlet on the right shows last invoked command in jython
Script library, which already provides some scripts - Automating data access resource configuration using wsadmin scripting
And basic scripting commands - Configuring data access with wsadmin scripting
I have downloaded and started the community version of SFSx2. I read everything on their documentation page:
http://docs2x.smartfoxserver.com/DevelopmentBasics/introduction
Which unfortunately only talks about flash client side code. Nothing about the corresponding server side code, nor about html5 client side which I need.
I downloaded the HTML5 examples, which took me a long time to find (they are here: http://www.smartfoxserver.com/download/get/140 )
None of the examples work, as they can't connect to the server. Presumably, this is because the examples only supply client side code. There are no instructions supplied on how to install or run the examples.
I can find no mention on the smartfox documenation on the following:
1) what language is used on the server side. One assumes its java.
2) how does one deploy java code to the smartfox server? I cant find any mention of this in the docs.
3) how does one find and install the server part of the client side examples (which are Tris, GameLobby, BuddyMessenger, AdvancedChat).
I applied to be allowed to post on the smartfoxserver forums, but no reply yet.
I also found it hard so I share what I've found out.
The server extensions are written in Java. I used Eclipse JUNO to write my code.
You can download Eclipse here. http://www.eclipse.org/downloads/
You export the extension in jar format from eclipse into you extension path. The name of your file has to end in 'extension' eg MyFirstExtension.jar otherwise sfs2x wont recognize it. Your extension path will be something like this: C:\Program Files\SmartFoxServer2X\SFS2X\extensions\MyFirstExtension\MyFirstExtension.jar if your working in windows.
You will find docs on JAVA API here. http://docs2x.smartfoxserver.com/api-docs/javadoc/server/
This is a link to the basic example code: http://www.smartfoxserver.com/download/get/120
Unzip the content into the [SFS2X_install_folder]/SFS2X/www/root/examples folder, overwriting the existing file. Run the index.html file, then navigate to another index.html to open the example. Run the sfs2x-standalone.exe first of course(see below). If you followed the 'server configuration tutorial' on smartfox website and changed the server ports, the examples wont work. Leave the ports alone until you start to understand the server.
This is a link to the flash example code: http://www.smartfoxserver.com/download/get/108
You will find the example code for apps mentioned above. They are written in Adobe Flash Builder and Java extensions. I don't know if there is any code for HTML5 but the Java server code and AS3 is there.
I also found that using the standalone server was the way to go rather than using SFS2x as a service. c:\program files\smartfoxserver2x\sfs2x\sfs2x-standalone.exe. Using the exe gives you the command prompt window. You can use the window for debugging and see the state of the server when it starts.
Most of the examples should work without creating extensions but to create an extension out of source examples:
Create and setup a new project in your Java IDE. You will have already set up a workspace.
Copy the content of the /source/server/src folder to your project's source folder.
Add SFS2X Libraries. Go to properties of the project -> Select Java Build Path -> Click Library Tab -> Add external jar. Add 'sfs2x.jar' and 'sfs2x-core.jar' from C:\Program Files\SmartFoxServer2X\SFS2X\lib folder. To create the extension, export jar file to extension path. Restart server.
Another problem I had was the Java Version I was using. I had to use Java1.6 with my version of sfs2x when writing extensions. This was trial and error as there was no documentation. There may be a newer version out now.
I had to copy all the server source into eclipse to try and understand how things were done. It was a way of having all the code in one place. There was a lot of trial and error as getting help is hard. I eventually accomplished what I set out to achieve. Good Luck.
SmartFox Server is easy to use even with extension. documentation Give try to Nuggeta solution for game development too. No extension needed at first. This is optionnal.
We have full HTML5 open source game walkthrough on github
I've got a Problem i can't upload any Media files in my Typo3 Backend.
If i choose a file in the Element browser I get a Internal Server Error 500, If i use upload i get this Error: Link Error
I also can't see the Thumbnails
I made the Files tyo3conf, fileadmin, typo3 and typo3temp with 777 access.
Imagemagick is also running and shows me all Test images.
Can anybody help me, I dont't know what do do.
The TYPO3 Version I use is: 6.1.0
I get a Internal Server Error 500
Have a look in your TYPO3 log accessible by the "log" backend module. If you can't find something there, get access to your vhost error log from the webserver. Usually, some sort of view capabilities are provided by some hoster control panels. Since it is a server error, you usually have to check the server log.
I also can't see the Thumbnails
Check your install tool again and play with the different options there. Also check that, in install tool > basic configuration, you have set the default paths (maybe let the install tool search again). You may see the test images, but if they're not generated correctly or display warnings, it may not work correctly.
Generally said: It is not really programming related, so IMHO not a fit for stackoverflow.com. Ask for help on irc.freenode.net in the #typo3 channel, this may be more helpful.
Is there a way to launch ColdFusion from the command-line?
I am not talking about launching the CF and related services with the net start command.
I remember doing this in the past. Basically, running CF from the command-line offered two advantages:
You didn't need to keep it as a Service and either have it always launch at boot-up or have to deal with the Services Manager
(more importantly) It echoed back to the screen all kinds of messages, especially error messages, which were helpful when actively developing (because you didn't need to go dig in the ColdFusion log files to find them)
It is possible that I'm mis-remembering and that this hasn't been available since ColdFusion 5.0. Is it at all possible with ColdFusion 9?
Update: Environment: Multi-server configuration with JRun.
Two ways to do this:
In development, add the server to ColdFusion Builder, and all the messages you talk about will show up in the console tab.
Start ColdFusion from the command line. The instructions are slightly different per environment but basically you want to get to bin directory and issue jrun start cfusion or coldfusion start or something similar . Post your environment for more specifics.
Go to C:\JRun\bin and issue jrun start cfusion
In your ColdFusion9/bin Folder you can find stop.bat and start.bat. Executing the latter gives you exactly what you want.