Server not starting

@mmichel might help you with this.

Hi Niharika,

first you should verify that RapidMiner Server is not longer running (check for java processes).
Afterwards make sure that the '.r.lock' file within the $install-dir/bin directory is not existing (note the dot at the beginning of the name) - otherwise delete it.
If this does not solve the problem inspect the server logs and try to start server via standalone.bat and check if the error only occurs in case of a service start.

Hope this helps,
Marcel

Hi mmichel
Thanks for the solution I was able to start the server.Can you please let me know the  significance of '.r.lock'  file?When the services get started '.r.lock' gets generated in same location.

@mmichel
I am again facing the same issue of my server not starting.I checked my task manager I dont see any java processes running but I am not able to delete the .r.lock file.
I checked the server logs possible error I found 
Could not free resource of IObjectVersion ID-64717 from disk :java.nio.file.DirectoryNotEmptyException
Can you please help

Hi Niharika,

if you are not able to delete the .r.lock file a process is still running and locking it. You can use for example taskkill to terminate all java applications which are running on the system:

taskkill /im java.exe

Hope this helps,
Marcel

@mmichel
I tried terminating all Java process but it says no java.exe found.When I delete the .r.lock file it says can't be deleted as it is open in cmd.exe.

I checked the latest logs the failures I detected :

Hi Niharika,

Then try to stop the cmd.exe which is attached the user SYSTEM. Otherwise you could also restart the OS to release the file lock.

Please check the content of the standalone/deployments folder and make sure that only one version of the execution.war, broker.war and the server.ear is present. Also verify that the configuration/standalone.xml does NOT contain any deployments:

<deployments>...</deployments>

Cheers,
Marcel

@mmichel
Thanks for the help .I stopped the console window host from task manager and after that I was able to delete the .r.lock file and restart the server.
But still I am facing issue of my server stopping abruptly when I run a python code on server which is connecting to a elastic server and pulling data for further model building.
The process runs fine 2-3times but after that server stops abruptly.
I checked both the elsticsearch and jbossssvc.exe are crashing.So is the issue with my elastic server?

Is any error logged in the server.log file?

My server stopped today i.e, 31-10-2019. but I don'y see see a server.log file for 31-10-2019.There are server, gc.log, bakupgc.log files for 31st.
In the server file error is:
Could not free resource of IObjectVersion ID-64717 from disk :java.nio.file.DirectoryNotEmptyException

The 'server.log' file is the one which will be used. Could you maybe attach the whole file?

@mmichel log file .

It seems that the Postgres DB was not reachable and has prevented the start of RapidMiner Server:

@mmichel how do I check that ?Further my postgresql runs as automatic service and we didn't stop it.
Further can we use same license key for more than one server?Would running both the servers at same time might cause any issue?

Just use a PostgreSQL tool of your choice to test the connection/ database, e.g. pgAdmin. If you cannot connect to it, you may want to restart the service.
 Yes you can, but you need to respect your license limits. For more information have a look at the pricing page.