Re: [HTCondor-users] Java Applications failing to run under Java Universe on Windows

[John M Knoeller <johnkn@xxxxxxxxxxx>]

I think this message from the log shows the problem.  

03/01/21 17:48:36 (pid:6292) ERROR: C:\condor\execute\dir_6292\java.exe is not a valid Windows executable

The problem is the path to java.exe is not correct here.  Try running

condor_config_val -dump java

I'll bet you will see

JAVA = java.exe

Using a relative path for the java exe can work for condor_starter -classad,  but does not work with a real job.   

You need to change the configured value of JAVA to be the full Windows path to java.exe.   You can get that

by using Windows' where tool

where java

will tell you what the full path is.  This full path needs to be what you put into the condor_config file on the execute node.

-tj

---

From: HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> on behalf of Lachlan Palmer <LPalmer@xxxxxxxxxxxx>
Sent: Tuesday, March 2, 2021 12:11 PM
To: HTCondor-Users Mail List <htcondor-users@xxxxxxxxxxx>
Subject: [HTCondor-users] Java Applications failing to run under Java Universe on Windows

 

Hi Team,

 

Currently we have been running Java applications using the vanilla universe via batch scripts. I want to utilise the java universe but I am having trouble running java applications using this submit method.

 

I have tried both using .class and .jar executables in the submit file but get the same output. The executable is just a “Hello World” application.

 

This is an example submit file:

 

universe = java

executable = \\XXXX\XXXX\Main.class

arguments = Main

output = output.txt

error = error.txt

log = log.txt

run_as_owner = True

initial_dir = \\XXXX\XXXX

transfer_executable = True

should_transfer_files = YES

when_to_transfer_output = ON_EXIT

queue

 

Looking at the log I get the following:

 

022 (005.000.000) 03/01 17:48:36 Job disconnected, attempting to reconnect

    Socket between submit and execute hosts closed unexpectedly

    Trying to reconnect to slot1_1@XXXX <10.1.27.95:9618?addrs=10.1.27.95-9618&noUDP&sock=2876_49ac_23>

...

024 (005.000.000) 03/01 17:48:36 Job reconnection failed

    Job not found at execution machine

    Can not reconnect to slot1_1@XXXX, rescheduling job

 

Investigating the StarterLog.slot1_1 file on the machine:

 

03/01/21 17:48:36 (pid:6292) About to exec C:\condor\execute\dir_6292\java -classpath C:\condor\bin;C:\condor\bin/scimark2lib.jar;. -Dchirp.config=C:\condor\execute\dir_6292\chirp.config CondorJavaWrapper C:\condor\execute\dir_6292\jvm.start C:\condor\execute\dir_6292\jvm.end Main

03/01/21 17:48:36 (pid:6292) Create_Process(): Failed to extract the extension from file C:\condor\execute\dir_6292\java.

03/01/21 17:48:36 (pid:6292) ERROR: C:\condor\execute\dir_6292\java.exe is not a valid Windows executable

03/01/21 17:48:36 (pid:6292) Create_Process(C:\condor\execute\dir_6292\java, -classpath C:\condor\bin;C:\condor\bin/scimark2lib.jar;. -Dchirp.config=C:\condor\execute\dir_6292\chirp.config CondorJavaWrapper C:\condor\execute\dir_6292\jvm.start C:\condor\execute\dir_6292\jvm.end Main, ...) failed:

03/01/21 17:48:36 (pid:6292) Failed to start job, exiting

03/01/21 17:48:36 (pid:6292) ShutdownFast all jobs.

 

So it is saying that java.exe is not a valid Windows executable but if I run condor_starter –classad I get the following regarding Java:

 

JavaVendor = "Oracle Corporation"

JavaVersion = "1.8.0_191"

JavaSpecificationVersion = "1.8"

JavaMFlops = 2598.547363

HasJava = True

 

I’m kind of out of ideas why it is failing. Any guidance would be appreciated.

 

Thanks,

 

Lachlan

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