I've tried several times to run an Apache Nifi server, but it won't work. I'm using windows 8 and installed java version 8.
I get this error message:
'nifi-env.bat' is not recognized as an internal or external command, operable program or batch file.The JAVA_HOME environment variable is not defined correctly.Instead the PATH will be used to find the java executable.
Error Screenshot:
I've tried the solution to the following similar problem, but this did not help:
Nifi commands on windows
I've also tried what is explained in this video, but this did not work either:
How to Install Apache NiFi and run Simple Process
What should I do in order to run the nifi?
There seems to be a Java installation error, which is affecting the nifi-env.bat file. Problem will be solved if you create a virtual environment with java. The following link explains how to create a Java Virtual environment. This will also solve the problem with 'nifi-env.bat' is not recognized as an internal or external command as in that case nifi would only be able to be run within the virtual environment.
Try to troubleshoot the problem by reinstalling java, if the above doesn't work out.
I have pulling my hair off for this, but I discovered the directory which holds nifi, must have not spaces.
My folder's name was "apache nifi" and there I unzipped the download from apache nifi's website, but after one hour I realized the name could be the problem, and actually it was. I just changed folder's name from "apache nifi" to just "nifi" and voilá, it just runs.
Check if JAVA_HOME path is set properly.
Related
I downloaded the Carrot2 Document clustering server build 3.15.0 for Mac. The read me file says:
The DCS requires a Java Runtime Environment (JRE) version 1.7.0 or later. To
run the DCS, execute the 'dcs' script and point your browser at
http://localhost:8080 for further instructions.
Mac OS Sierra doesn't make it easy, but I got 1.8.0_112 installed.
The problem is that I don't know how to execute the 'dcs' script.
There are .cmd, .sh, .war, and .jar files. I wasn't sure which of those to work with. I thought .jar looked promising, so I followed some of this thread and tried this in a terminal window:
java -jar invoker.jar
I cd-ed to the correct directory, but it just says Provide main class, but I'm not sure what or where that is.
Can anybody provide instructions or a link to how to do this?
Use the dcs.sh (on Linux/Mac) and dcs.cmd (on Windows) to start the server. The scripts will set some extra options for the JVM and then start the DCS. In case of any problems, append the -v option to see diagnostic output.
I'm new to Stack Overflow (though a long time lurker).
I'm struggling to install elasticsearch on my laptop. It's windows 8, I've just updated java to Java 8 and I've set the new path using set JAVA_HOME.
However, whenever I try to run the elasticsearch.bat file on the command line, I get this error:
\elasticsearch-5.0.2\bin\..\config\jvm.options was unexpected at this time
Any help would be greatly appreciated on this matter
I've also tried to setup the ElasticSearch on my Windows 2016 R2 Datacenter (64-bit). Let me share some of my experiences on how to solve this.
Setting up JAVA_HOME
Ensure that you have JDK/JRE installed. You can download it here.
Set the JAVA_HOME environment variable. To do this, open the Start menu and type in "path".
Then click on Environment Variables. If you don't have JAVA_HOME variable set yet, click New.
The JAVA_HOME variable should only lead up to the JDK/JRE directory, not including /bin.
C:\Progra~1\Java\jdk1.8.0_112
Progra~1 corresponds to Program Files. If you use Program Files (x86), change Progra~1 to Progra~2
Restart your computer. Once your computer is restarted, open up CMD and type in echo %JAVA_HOME%. The output should be
C:\Progra~1\Java\jdk1.8.0_112
If you get the following output, your JAVA_HOME is setup correctly.
Running ElasticSearch
The first time I tried to run ElasticSearch, I get the following output.
The odd directory I pointed out here gave me a hint that the batch file might be reading from the wrong directory. So what I did was tinker around with the batch file a bit. Open elasticsearch.bat using any text editor.
Scroll all the way to the end, somewhere above the last lines you'll see something similar to the following.
Remove the highlighted line, save the file and try running the batch file again via command prompt.
It works in my case.
Once you have this, open up your browser and navigate to localhost:9200.
I think that's it?
Your problem is most likely caused by parentheses in the path to where you unzipped and are running Elasticsearch from. The related issue in the Elasticsearch repository is #24712 which will be fixed with Elasticsearch 5.4.1.
Be aware that by applying Nicholas Lie's "fix" you are telling Elasticsearch to effectively ignore all settings in config/jvm.options. While this may help you to start Elasticsearch in this specific case, it will only start with default JVM options which might lead to surprising behavior down the road.
I have some question when using jenkins.
the scenario:
I have installed a tomcat on machine A,and config all necessary environment including JDK, and they work well.
I wrote a shell script named restart.sh to kill the tomcat process,and restart.
I execute the script and it works well.When I check the tomcat process using ps -ef，and it shows the exact JDK path as I already config.The JDK path is /usr/local/java/JDK7
When I execute the restart.sh script via jenkins,problem comes. I can see the tomcat process using the wrong JDK path,/usr/bin/java,not the path as i config. I use SSH Publishers plugin to run the remote script.see as the image below:
enter image description here
I don't know how this problem happen,please help,Thanks all
This might be the problem of path variables, just to cross verify , find JAVA_HOME on your server 1. By logging onto server manually 2. From Exec command of your ssh section of your jenkins job , most probably you will find the answer.
i'm assuming you're jenkins is configured to use jdk which is defined at its root level.
if this didn't solve , we need to look into this problem from another angle.
I have successfully compiled the "Hello World" example found on this link: http://code.google.com/p/matlabcontrol/wiki/Walkthrough.
However, when I try to run it, I get the following exception:
Exception in thread "main" matlabcontrol.MatlabConnectionException:
Could not launch MATLAB. Command: [matlab, -desktop, -r, javaaddpath '/usr/local/MATLAB/R2011a/java/jar/matlabcontrol-4.0.0.jar'; matlabcontrol.MatlabClassLoaderHelper.configureClassLoading(); javarmpath '/usr/local/MATLAB/R2011a/java/jar/matlabcontrol-4.0.0.jar'; matlabcontrol.MatlabConnector.connectFromMatlab('PROXY_RECEIVER_6eb278d0-1401-4b9c-b9e4-80512708f9b7', 2100);].
I have Matlab2011a installed in Ubuntu 11.10.
Could anyone point out where the problem could possibly be?
If you check the compatibility between OS and MATLAB version?
https://code.google.com/p/matlabcontrol/wiki/Compatibility
I suggest that you should update matlabcontrol-4.0.0.jar to latest version matlabcontrol-4.1.0.jar which can be downloaded from website.
Remember to open MATLAB before running the code and check if you have included all related jar files (jmi.jar...etc)to the java build path.
That exception that you posted suggests that you need to add Matlab to your system path. Check online guides on how to do that on Ubuntu.
I had installed Java in my PC and it was working perfectly. Suddenly something went wrong and now I m not able to open swing applications and its showing the error 'Java not found'. But I can run the Eclipse IDE which also needed Java to run. So I decide to reinstall the Java, but when I tried to uninstall the Java it shows the Error 1723 - There is a problem with this Windows Installer Package. So I have installed a new JDK in another location and set the PATH. Still I am not able to run the Swing application.
Can anybody help me on this?
How are you running your swing application?
If it's from the command line like java mySwingApp and you're getting java not found then your PATH isn't set properly. Make sure that the java/bin directory is on your PATH not just the top level directory. You can test your PATH by just typing java in a console window - it should print the java help page.
If you're not running from a terminal like above, then you may need to set a JAVA_HOME environment variable which points to your java installation folder. Here's a tutorial on setting JAVA_HOME
Setting JAVA_HOME
Hope this helps,
Will
This is close to jakob's answer, about trying to get your Java install setup correctly again, just with a little more detail.
I had a similar problem on my Windows 7 box where I was trying to uninstall Java and do a clean install of a newer version. Something got messed up and I would get the 1723 error message during the uninstall and attempted reinstall. Here's information about how I was able to fix the problem, and maybe this will help you:
Look at the log files for the uninstall/reinstall. On Windows 7 they can be found at c:\users\username\AppData\Local\Temp\
The java_install.logdidn't show any extra information, but I had several MSI##### log files that contained error messages about the failed uninstall. The message was: Error 1723.There is a problem with this Windows Installer package. A DLL required for this install to complete could not be run. Contact your support personnel or package vendor. Action UninstallJRE, entry: MSIUninstallJRE, library: C:\Program Files\Java\jre6\bin\regutils.dll
There was indeed no regutils.dll file, and not even the bindirectory was there. So I copied over a regutils.dll file from another computer, ran the uninstaller, and it worked. Then the new clean install of Java also worked.
So take a look at your logfiles and hopefully that will give you more detailed information about the 1723 error.
This usally happens when you delete Java files manually.
If you try to uninstall Java and it fails, it generates a log file.
Should be in C:\Users[Username]\AppData\Local\Temp
Almost at the end the missing file(s) can be found.
Try to copy that file(s) from a working installation to your computer.
Then you should be able to uninstall your Java and install a new version.