B4J Question running jrdc server as an windows service

[maddy]

Hello b4a family,

I want to run jrdc server as a windows service and it should start automatically on system start. I tried out some ways by reffering internet but it didnot worked out. Can you guys refer me some solutions if you know how to do it?

here is the link of jrdc server - https://www.b4x.com/android/forum/t...-rdc-remote-database-connector.61801/#content

thanks

 

[Erel]

jRDC2 = regular non-ui B4J app.

Check this thread: https://www.b4x.com/android/forum/threads/java-as-windows-service.65741/#content

 

[maddy]

i successfully created it as a service in my local but currently facing issue with the start of program. can you please help? here is the screenshot of the error i am getting @Erel @tchart

 

[inakigarm]

i successfully created it as a service in my local but currently facing issue with the start of program. can you please help? here is the screenshot of the error i am getting @Erel @tchart

Sometimes, the jRDC ip-port binding is in use when you try to launch jRDC (maybe this can cause the error above ; https://stackoverflow.com/questions...ally-if-they-are-not-in-use-by-other-services)
Check the logs with https://www.b4x.com/android/forum/threads/jrdc2-log-file-location.94037/#post-595065

 

[maddy]

No, It is not the problem of port binding because manually i can run my b4j server directly with no errors. any other suggestions from b4a family??

 

[Erel]

Check event viewer: https://stackoverflow.com/a/12517425/971547

 

[maddy]

Description:
A service was installed in the system.
Service Name: jrdcShyam
Service File Name: M:\service\JavaService64.exe
Service Type: user mode service
Service Start Type: demand start
Service Account: LocalSystem

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Service Control Manager" Guid="{555908d1-a6d7-4695-8e1e-26931d2012f4}" EventSourceName="Service Control Manager" />
    <EventID Qualifiers="16384">7045</EventID>
    <Version>0</Version>
    <Level>4</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8080000000000000</Keywords>
    <TimeCreated SystemTime="2019-10-15T18:12:31.130963700Z" />
    <EventRecordID>13870</EventRecordID>
    <Correlation />
    <Execution ProcessID="836" ThreadID="5204" />
    <Channel>System</Channel>
    <Computer>DESKTOP-TPCJ03U</Computer>
    <Security UserID="S-1-5-21-3011934078-1726636858-2272458934-1001" />
  </System>
  <EventData>
    <Data Name="ServiceName">jrdcShyam</Data>
    <Data Name="ImagePath">M:\service\JavaService64.exe</Data>
    <Data Name="ServiceType">user mode service</Data>
    <Data Name="StartType">demand start</Data>
    <Data Name="AccountName">LocalSystem</Data>
  </EventData>
</Event>

 

[maddy]

hello erel i have gone through the event viewer and find the logs only with information. there are no such error or warning related to jrdc service. Can you please help me in this?

Is there any problem with my service path. it points to javaService64.exe file. Is it correct or it should point to jrdc.jar

 

[Erel]

There is no relevant information in these logs. Are you using java 8 or Java 11? Maybe the service wrapper uses Java 8.

 

[maddy]

I am using Java 8 itself. This is the attachment of the JRDC2 server from your website can you please run this in local and try if you can able to run this as a service. Or can you provide a different working JavaService file. Currently I am using Windows 10 - 64 bit . Thanks In Advance

 

[Erel]

I never worked with Windows services so cannot help you too much with this. Sorry.

 

[maddy]

okay Thanks Alot Erel

 

[Bladimir Silva Toro]

Hello

You can also do it in the following way that consists of executing a BAT file at the Start of the PC

Here are the steps:

1. Run Gpedit.msc

2. Click on device configuration

3. Script (Start / Off)

4. Click start and add the BAT file

I leave the text content of the BAT file, I remind you that you must have the JAVA virtual machine installed

@echo off

java -jar "D:\jRDC.jar"

pause
exit

 

[yfleury]

On win10 I dont have the gpedit

 

[DonManfred]

Create a batchfile and put it in the autostart folder for each user/for the system.

 

[Bladimir Silva Toro]

On win10 I dont have the gpedit

gpedit is only supported in Windows Professional or Enterprise version.

You can search Google how to activate it in another version of windows.

 

[OliverA]

I am using Java 8 itself

32bit or 64bit?

 

[matt humphreys]

Perhaps Task Scheduler may be useful for you.
I run the server from a batch file which is started (at system startup) by the Task Scheduler which allows more granular control- like allowing it to run when no user is logged on.

The actual command line in the batch file is :

cmd /k ""%ProgramFiles%\Java\jre1.8.0_181\bin\java.exe" "-jar" "C:\MyCompany\MyApplication\Server\ServerApp.jar""
​

Admittedly it's on Windows Server 2008 however I see no reason why a discrete workstation cannot accomplish the same result.

 

[maddy]

Thanks to all and finally i am using task scheduler to run jrdc service and its working fine.

 

[matt humphreys]

'cmd /c ...' will work just as well.
I just used the /k switch when testing and appear to have forgotten about it.

One more thing which will assist in a server scenario...
by default, Task scheduler runs apps with priority 7 i.e. 'Below Normal'
to change, export Task as xml,
change priority to say 1 and re-import.
in the xml file look for this...
<Priority>7</Priority>

https://docs.microsoft.com/en-us/windows/win32/taskschd/tasksettings-priority?redirectedfrom=MSDN