Code timeout question #571

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1. shuangpai commented on Dec 9, 2025

   

   shuangpai

   on Dec 9, 2025

   Author

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   package com.company.sometest.code;

   import org.graalvm.polyglot.Context;
   import org.graalvm.polyglot.Value;
   import org.graalvm.python.embedding.GraalPyResources;

   import java.io.IOException;
   import java.nio.file.Path;
   import java.util.Map;
   import java.util.TimeZone;
   import java.util.concurrent.*;

   public class GraalPythonTests {
   // If there is a Cpython library, creating it multiple times will result in an error
   static Context CONTEXT = GraalPyResources.contextBuilder(Path.of("/tmp/graalpy"))
   .environment(Map.of("TZ", TimeZone.getDefault().getID()))
   .build();

   public static void main(String[] args) throws InterruptedException {
   
       ExecutorService executorService = Executors.newFixedThreadPool(10);
       for (int i = 0; i < 10; i++) {
           Future<?> f = executorService.submit(() -> {
               CONTEXT.eval("python", """
                       import time
                       import numpy
                       while True:
                           print(123)
                           time.sleep(1)
                       """);
           });
           try {
               f.get(20, TimeUnit.SECONDS);
           } catch (Exception e) {
   
           }
       }
       try {
           System.in.read();
       } catch (IOException e) {
           throw new RuntimeException(e);
       }
   
   }
   

   }
2. shuangpai

   changed the title [-]代码执行超时问题[/-] [+]Code timeout question[/+] on Dec 9, 2025
3. msimacek commented on Dec 10, 2025

   

   msimacek

   on Dec 10, 2025

   Contributor

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   Hi, you can use the interrupt method on the context, but that will stop the code on all threads.
4. shuangpai commented on Dec 12, 2025

   

   shuangpai

   on Dec 12, 2025

   Author

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   Hi, you can use the interrupt method on the context, but that will stop the code on all threads.

   Thank you very much for your reply. Currently, I've already switched to an alternative approach by using Java to invoke Python scripts for dynamic code execution (effectively achieving a multi-process setup). I'll consider switching back once GraalPy's support for multiple Context instances becomes mature.