B4J Question jRDC2 on MS Server, exiting after 20 mins

Erel

B4X founder

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• Aug 25, 2021

• #2

It sounds like something externally kills the process. Are you monitoring the server logs? How are you running it? Maybe it is killed when you log out.

 

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S

swan

Member

• Aug 26, 2021

• #3

Thanx Erel,
Some more info - java not installed on that server, so I created an exe package of jRDC2 and loaded that up onto the server.
Running jRDC2 simply by double clicking it. Because it's on a VPS this is done via Remote Desktop Connection.
I have noticed while RDP remain open jRDC2 also remains up. If I close the RDP thats when jRDC2 times-out as well. I did try running jRDC2 "as administrator" but same result.
Can't see in the logs when it occurs.
Perhaps find a way to start jRDC2 not via RDP.

 

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Erel

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• Aug 26, 2021

• #4

swan said:

Some more info - java not installed on that server, so I created an exe package of jRDC2 and loaded that up onto the server.

Click to expand...

Don't. jServer shouldn't be packaged with a standalone package.

You don't need to install Java. Only copy it to the server.

[server] Run a Server on a VPS (linux orientated but it is the same idea on Windows)

 

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swan

Member

• Aug 26, 2021

• #5

Thanx again Erel,
Starting to make sense now. However I have no experience with java, I'm confused about which files go where on the server now.
Also, can't find a windows alternative to nohup to start the process.

 

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Erel

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• Aug 26, 2021

• #6

You just need to upload the JDK or JRE and start the server with path/to/java -jar <yourjar.jar>

swan said:

Also, can't find a windows alternative to nohup to start the process.

Click to expand...

You don't need it. On Linux the user processes are killed by default when the user logs out. I don't think that Windows server behaves the same.

 

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OliverA

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• Aug 26, 2021

• #7

Your issue may be related to this: https://serverfault.com/questions/2...top-from-closing-my-session-due-to-inactivity

Note: I'm assuming here that you are just disconnecting the RDC session, not logging out of your RDC session.

 

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OliverA

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• Aug 26, 2021

• #8

@swan: Why are you not running the jRDC2 application as a service? There are a couple of threads here on the forum about this. In the past, I've used https://nssm.cc/. Here's @tchart showing his preferred tool: https://www.b4x.com/android/forum/threads/better-windows-services-for-b4j.120190/#content

 

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swan

Member

• Sep 6, 2021

• #9

Sorry guys, I was called away on something else. Didn't mean to be rude and not reply.

 

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