Py4j Error

[iazdan]

py4j.protocol.Py4JNetworkError: An error occurred while trying to connect to the Java server (127.0.0.1:)

[lessthanoptimal]

Can you provide more information? Did it happen immediately? What's your operating system?

[vitoivan]

@lessthanoptimal same error here

Launching Java process: java_port=25333 python_port=25334
Failed to successfully launch the JVM after 5 seconds.  Aborting
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 982, in _get_connection
    connection = self.deque.pop()
IndexError: pop from an empty deque

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 1132, in start
    self.socket.connect((self.address, self.port))
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/uvicorn", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/uvicorn/main.py", line 437, in main
    run(app, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/uvicorn/main.py", line 463, in run
    server.run()
  File "/usr/local/lib/python3.9/site-packages/uvicorn/server.py", line 60, in run
    return asyncio.run(self.serve(sockets=sockets))
  File "/usr/local/lib/python3.9/asyncio/runners.py", line 44, in run
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/app/./api/app.py", line 7, in <module>
    controllers.init(app)
  File "/app/./api/controllers/__init__.py", line 6, in init
    from .scan import scan_by_image_by_url
  File "/app/./api/controllers/scan.py", line 1, in <module>
    from api.services.scan_by_url_service import scan_by_url_service
  File "/app/./api/services/scan_by_url_service.py", line 2, in <module>
    from scanner import Scanner
  File "/app/./scanner/__init__.py", line 1, in <module>
    from ._pyboof.scanner import PyboofScanner
  File "/app/./scanner/_pyboof/scanner.py", line 3, in <module>
    import pyboof as pb
  File "/usr/local/lib/python3.9/site-packages/pyboof/__init__.py", line 244, in <module>
    init_pyboof(java_port=int(os.environ.get('PYBOOF_JAVA_PORT', 25333)),
  File "/usr/local/lib/python3.9/site-packages/pyboof/__init__.py", line 79, in init_pyboof
    __init_memmap(size_mb)
  File "/usr/local/lib/python3.9/site-packages/pyboof/__init__.py", line 151, in __init_memmap
    gateway.jvm.pyboof.PyBoofEntryPoint.initializeMmap(mmap_path, size_mb)
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 1712, in __getattr__
    answer = self._gateway_client.send_command(
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 1036, in send_command
    connection = self._get_connection()
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 984, in _get_connection
    connection = self._create_connection()
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 990, in _create_connection
    connection.start()
  File "/usr/local/lib/python3.9/site-packages/py4j/java_gateway.py", line 1144, in start
    raise Py4JNetworkError(msg, e)
py4j.protocol.Py4JNetworkError: An error occurred while trying to connect to the Java server (127.0.0.1:25333)

[lessthanoptimal]

@vitoivan PyBoof version and what's your system?

[vitoivan]

@lessthanoptimal PyBoof==0.40.1 , using FROM python:3.9 in dockerfile, so that uses probabily some alpineXX system.
I'm using also openjdk-11.
So that's my problem, my docker image build and runs successfully locally. But when i run it in a kubernetes pod i have this error.

[lessthanoptimal]

FYI PyBoof 0.41 is out. Doubt it will fix issue.

Just punched part of your error message into google with "docker" and there might be others with a similar issue. I'm a docker novice.

[lessthanoptimal]

Current SNAPSHOT branch code might fix this. See #18

[xuhelene]

hava you solved this problem? I got the same problem with pyboof version 0.43.1

[vitoivan]

hava you solved this problem? I got the same problem with pyboof version 0.43.1

I found out that my problem was that my service has not enought memory for Pyboof. It work well when i increase my container's memory.