I am running my node.js application exe file on windows 7/10 startup. It is working fine but some cases my exe stops working and is closed automatically. I want to create some scheduled job for checking whether my exe is running or not. If not running start the application and if running do nothing.
Please guide me to create this kind of schedule job with 10 minutes.
#ECHO OFF
tasklist | find /i "app.exe" && echo process Already running || START "app.exe" "path"
create batch file using above code and use task scheduler for monitoring the exe is running
Related
I have android project using java which uses a nodejs server hosted on heruko. What I want is to run a local server before androidTest(instrument test), I have tried writing batch(bash*) file and running my server as an external tool.
That doesn't work async and stops the test. Any help with this would be highly appreciated.
This is how serverScript.bat looks:
cd C:\intern.apply
start node server test
Update v1:
I found a way to run my bash* file from gradle. But there is 1 problem, it always run, I want it to run only when someone runs androidTests (robitium/acceptance tests) from android studio. Right now I have this task in gradle.build (Project:AppName)
task mytask() {
ant.exec(
executable: 'serverScript.bat',
spawn: true
)
}
In your bash (not batch) file, have you tried running the server in background?
run_server & --> will be processed in background and the script continues
run_tests
stop_server
I am working with Ubuntu 16.04 and I have two shell scripts:
run_roscore.sh : This one fires up a roscore in one terminal.
run_detection_node.sh : This one starts an object detection node in another terminal and should start up once run_roscore.sh has initialized the roscore.
I need both the scripts to execute as soon as the system boots up.
I made both scripts executable and then added the following command to cron:
#reboot /path/to/run_roscore.sh; /path/to/run_detection_node.sh, but it is not running.
I have also tried adding both scripts to the Startup Applications using this command for roscore: sh /path/to/run_roscore.sh and following command for detection node: sh /path/to/run_detection_node.sh. And it still does not work.
How do I get these scripts to run?
EDIT: I used the following command to see the system log for the CRON process: grep CRON /var/log/syslog and got the following output:
CRON[570]: (CRON) info (No MTA installed, discarding output).
So I installed MTA and then systemlog shows:
CRON[597]: (nvidia) CMD (/path/to/run_roscore.sh; /path/to/run_detection_node.sh)
I am still not able to see the output (which is supposed to be a camera stream with detections, as I see it when I run the scripts directly in a terminal). How should I proceed?
Since I got this working eventually, I am gonna answer my own question here.
I did the following steps to get the script running from startup:
Changed the type of the script from shell to bash (extension .bash).
Changed the shebang statement to be #!/bin/bash.
In Startup Applications, give the command bash path/to/script to run the script.
Basically when I changed the shell type from sh to bash, the script starts running as soon as the system boots up.
Note, in case this helps someone: My intention to have run_roscore.bash as a separate script was to run roscore as a background process. One can run it directly from a single script (which is also running the detection node) by having roscore& as a command before the rosnode starts. This command will fire up the master as a background process and leave the same terminal open for following commands to be executed.
If you could install immortal you could use the require option to start in sequence your services, for example, this is could be the run config for /etc/immortal/script1.yml:
cmd: /path/to/script1
log:
file: /var/log/script1.log
wait: 1
require:
- script2
And for /etc/immortal/script2.yml
cmd: /path/to/script2
log:
file: /var/log/script2.log
What this will do it will try to start both scripts on boot time, the first one script1 will wait 1 second before starting and also wait for script2 to be up and running, see more about the wait and require option here: https://immortal.run/post/immortal/
Based on your operating system you will need to configure/setup immortaldir, her is how to do it for Linux: https://immortal.run/post/how-to-install/
Going more deep in the topic of supervisors there are more alternatives here you could find some: https://en.wikipedia.org/wiki/Process_supervision
If you want to make sure that "Roscore" (whatever it is) gets started when your Ubuntu starts up then you should start it as a service (not via cron).
See this question/answer.
Can any node.js experts tell me how I might configure node JS to autostart a server when my machine boots?
I'm on Windows
This isn't something to configure in node.js at all, this is purely OS responsibility (Windows in your case). The most reliable way to achieve this is through a Windows Service.
There's this super easy module that installs a node script as a windows service, it's called node-windows (npm, github, documentation). I've used before and worked like a charm.
var Service = require('node-windows').Service;
// Create a new service object
var svc = new Service({
name:'Hello World',
description: 'The nodejs.org example web server.',
script: 'C:\\path\\to\\helloworld.js'
});
// Listen for the "install" event, which indicates the
// process is available as a service.
svc.on('install',function(){
svc.start();
});
svc.install();
p.s.
I found the thing so useful that I built an even easier to use wrapper around it (npm, github).
Installing it:
npm install -g qckwinsvc
Installing your service:
> qckwinsvc
prompt: Service name: [name for your service]
prompt: Service description: [description for it]
prompt: Node script path: [path of your node script]
Service installed
Uninstalling your service:
> qckwinsvc --uninstall
prompt: Service name: [name of your service]
prompt: Node script path: [path of your node script]
Service stopped
Service uninstalled
If you are using Linux, macOS or Windows pm2 is your friend. It's a process manager that handle clusters very well.
You install it:
npm install -g pm2
Start a cluster of, for example, 3 processes:
pm2 start app.js -i 3
And make pm2 starts them at boot:
pm2 startup
It has an API, an even a monitor interface:
Go to github and read the instructions. It's easy to use and very handy. Best thing ever since forever.
If I'm not wrong, you can start your application using command line and thus also using a batch file. In that case it is not a very hard task to start it with Windows login.
You just create a batch file with the following content:
node C:\myapp.js
and save it with .bat extention. Here myapp.js is your app, which in this example is located in C: drive (spcify the path).
Now you can just throw the batch file in your startup folder which is located at C:\Users\%username%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Just open it using %appdata% in run dailog box and locate to >Roaming>Microsoft>Windows>Start Menu>Programs>Startup
The batch file will be executed at login time and start your node application from cmd.
This can easily be done manually with the Windows Task Scheduler.
First, install forever.
Then, create a batch file that contains the following:
cd C:\path\to\project\root
call C:\Users\Username\AppData\Roaming\npm\forever.cmd start server.js
exit 0
Lastly, create a scheduled task that runs when you log on. This task should call the batch file.
I would recommend installing your node.js app as a Windows service, and then set the service to run at startup. That should make it a bit easier to control the startup action by using the Windows Services snapin rather than having to add or remove batch files in the Startup folder.
Another service-related question in Stackoverflow provided a couple of (apprently) really good options. Check out How to install node.js as a Windows Service. node-windows looks really promising to me. As an aside, I used similar tools for Java apps that needed to run as services. It made my life a whole lot easier. Hope this helps.
you should try this
npm forever
https://www.npmjs.com/package/forever
Use pm2 to start and run your nodejs processes on windows.
Be sure to read this github discussion of how to set up task scheduler to start pm2: https://github.com/Unitech/pm2/issues/1079
Here is another solution I wrote in C# to auto startup native node server or pm2 server on Windows.
I know there are multiple ways to achieve this as per solutions shared above. I haven't tried all of them but some third party services lack clarity around what are all tasks being run in the background. I have achieved this through a powershell script similar to the one mentioned as windows batch file. I have scheduled it using Windows Tasks Scheduler to run every minute. This has been quite efficient and transparent so far. The advantage I have here is that I am checking the process explicitly before starting it again. This wouldn't cause much overhead to the CPU on the server. Also you don't have to explicitly place the file into the startup folders.
function CheckNodeService ()
{
$node = Get-Process node -ErrorAction SilentlyContinue
if($node)
{
echo 'Node Running'
}
else
{
echo 'Node not Running'
Start-Process "C:\Program Files\nodejs\node.exe" -ArgumentList "app.js" -WorkingDirectory "E:\MyApplication"
echo 'Node started'
}
}
CheckNodeService
Simply use this, install, run and save current process list
https://www.npmjs.com/package/pm2-windows-startup
By my exp., after restart server, need to logon, in order to trigger the auto startup.
Need to create a batch file inside project folder.
Write this code in batch file
#echo off
start npm start
save batch file with myprojectname.bat
Go to run command and press window + R
Enter this command :- shell:common startup
Press ok then folder will be open.
Folder path like as C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp
You will be paste your myprojectname.bat file.
You can check also. Need to system restart.
Copied directly from this answer:
You could write a script in any language you want to automate this (even using nodejs) and then just install a shortcut to that script in the user's %appdata%\Microsoft\Windows\Start Menu\Programs\Startup folder
We have started migrating our one of several projects to team city as part of CI. Below is how we have setup teamcity build. We are trying to deploy WebSite.
1) Build Step 1 (Package installation)
Using "command line " runner type install required package.
2) Build Step 2 (Build)
Using Runner type "Visual Studio (sln)" (Visual Studio 2010) build website.
3) Build Step 3 (Deploy Web Site)
Using ".Net Process Runner", deployer.exe (x86 built with .Net Framework 4) deploy site.
Deployer.exe reads config file. Config file contains "BuildId", "Environment" and "Servers" where we want build to be pushed.
<buildType id="bt52">
<env name="Debug">
<server path="SERVER1" />
</env>
<env name="QA">
<server path="SERVER2" />
<server path="SERVER3" />
</env>
<env name="UAT">
<server path="SERVER4" />
<server path="SERVER5" />
</env>
</buildType>
Deployer.exe is called with required parameters as below. Which reads config and deploys site to Server2 and Server3.
Deployer.exe "bt52" "QA" "siteQA" "E:\BuildAgent\work\2483052e33e5e1e8\src\diy\" msdeploy.exe
Problem area is step #3.
When we run deployer.exe using .Net process runner as part of team city we see its hanging and not responsind sometime even for 45 minutes. When we try to execute same deployer.exe from build server using command line script executes within couple of seconds.
E:\TeamCity_custom_applications\deployer>Deployer.exe farm1-1 QA siteQA E:\BuildAgent\work\2483052e33e5e1e8\src\diy\ msdeploy.exe
Info
: Processing batch run ... Info : Processing command ...msdeploy.exe
-verb:sync -source:contentPath="E:\BuildAgent\work\2483052e33e5e1e8\src\diy\" -dest:contentPath="siteQA",wmsvc="SERVER2",userName="*****",password="******",authType="Basic"-skip:objectName=filePath,absolutePath=web.config -skip:objectName=dirPath,absolutePath="bin" -enableRule:DoNotDeleteRule -allowUntrusted Info : output >>Total changes: 0 (0 added, 0 deleted, 0 updated, 0 parameters changed, 0
bytes copied) Info : error >>(none) Info : ExitCode >> 0 Info :
Processing command ...msdeploy.exe -verb:sync
-source:contentPath="E:\BuildAgent\work\2483052e33e5e1e8\src\diy\" -dest:contentPath="siteQA",wmsvc="SERVER3",userName="******",password="******",authType="Basic"
-skip:objectName=filePath,absolutePath=web.config -skip:objectName=dirPath,absolutePath="bin" -enableRule:DoNotDeleteRule -allowUntrusted Info : output >>Total changes: 0 (0 added, 0 deleted, 0 updated, 0 parameters ch anged, 0
bytes copied) Info : error >>(none) Info : ExitCode >> 0
Info: Deploy Script Complete.
One more thing we observed is running deployer.exe through teamcity I see that site content gets copied but only for 1 server and teamcity build status stays in "Running" mode. I am wondering if someone can please put little bit of insight on how can I look into this issue.
Update 1:
Thanks for your time looking into it !! What we ended up doing is, Instead of running command "msdeploy.exe" from "cmd.exe" we added "msdeploy.exe" location as Environment variable and executed "msdeploy.exe" in loop for # of servers. This has resolved issue of hanging. Now I am just curious to know why would it behave in such manner where if you execute "msdeploy.exe" from "cmd.exe" it would hang while running directly "msdeploy.exe" it would execute successfully. Any insight into same would be greatly appreciated.
Update 2:
I have added image which explains behavior using process explorer. If we kill msdeploy.exe from process explorer than for next all deployments to that server will not have the issue of build hanging. Please see below image
To be honest, it sounds like you're running into issues with redirecting input/output streams. TeamCity is running your application in a totally headless environment and then you, in turn, are attempting to redirect and parse the output of msdeploy.exe
If that's the case, I'd recommend looking into using the MSDeploy API instead of msdeploy.exe. The latter is just a command line wrapper for the former, so all the functionality is available to you. There's a sample deployment application available on the IIS blog if you need help getting started.
It seems you have NUnit build step configured in TeamCity and invoke cmd.exe from your test. This looks like an issue with the test code then. Most probably it will reproduce without TeamCity if you run the test in question with NUnit directly.
As Richard noted, most probably the issue root cause is related to stdin/stdout processing.
If you want to fix it in your code, you can try to experiment by explicitly closing stdin or the other way around, try writing something into it, etc.
Work around we did is, we observed msdeploy doesn't take more than 3-5 seconds to execute and deploy (Even for our biggest project which is almost 300mb website). So we set timeout of 20 seconds. So far since last 1 weeks we have not seen any issue with it and hopefully it will not cause more trouble but still we are not sure why such behavior.
There is a linux script that contain a statement used to run a java application.
Script (runServer.sh) is like:
java ServerApp &
Since java application is a server , it keeps running forever until gets stopped. Therefore after running runServer.sh it does not return console automatically and keeps waiting to press return key.
And same problem couses remote script call via Runtime api waiting forever.
proc = rt.exec(runScript);
exitVal = proc.waitFor();
Even When running remote script via ssh say from machine1, crtl+c has to be used to exit from remote script execution.
When I insert following statement into runServer.sh, problem is resolved. But in that case I could not write process id into a file via "echo $? >pid"
exec > "\tmp\outlog.txt" 2>&1
Is there a way of returning console automatically by modifiying linux script.
Change the script to:
nohup java ServerApp &