Locate the Error Message

Find out what exactly goes wrong

To identify the cause of the problem, refer to the log file for the detailed error message and full stack trace. If seeking community help, providing these details initially can save a lot of time.

Locate the log file

Windows

Go to the directory where you click Crynux Node.exe, there is a sub directory with name logs, the log file can be found inside with name crynux-server.log.

Mac

Open a Finder window, go to the Applications folder, right click on the Crynux Node.app and select Show Package Content, then go to the folder Contents/Resources/logs, and the log file is located inside as crynux-server.log.

Docker

Find the logs in the container output

Find the container name of the Crynux Node:

$ docker ps

The output should be similar to:

CONTAINER ID   IMAGE                                COMMAND              CREATED          STATUS          PORTS                      NAMES
77e559a0d707   ghcr.io/crynux-ai/crynux-node:2.0.4  "bash start.sh run"  33 minutes ago   Up 32 minutes   127.0.0.1:7412->7412/tcp   ecstatic_chatterjee

In this case, the container name is ecstatic_chatterjee.

In a terminal, type in the following command:

$ docker logs {container_name}

If you want to save the logs to a file, use the following command:

$ docker logs {container_name} >> crynux.log

Find the log file inside the container

The log file can also be found under /app/logs/crynux-server.log inside the container.

Linux

If you downloaded the binary release version of Linux server, the log file crynux-server.log can be found in the logs folder of the project root.

Source Code

The log file is located at logs/crynux-server.log, relative to the project root folder.

Locate the error message

Open the log file in a text editor. Navigate to the time where you encountered the error, and find the lines with [ERROR], which is usually the error message. And there will be a stack trace around the error message. If you are asking for help, remember to provide the full stack trace from the first line to the last.

Here is an example of a log file with error message and the stack trace:

[2024-05-15 18:08:27] [INFO    ] crynux_worker.prefetch: Start worker process: worker, data/huggingface, data/external
[2024-05-15 18:08:27] [INFO    ] crynux_worker.prefetch: Start prefetching models
[2024-05-15 18:08:35] [ERROR   ] crynux_server.node_manager.node_manager: Node manager init error: init task cancelled
Traceback (most recent call last):
  File "D:\Crynux Node\_internal\crynux_server\node_manager\node_manager.py", line 454, in _run
    async with create_task_group() as init_tg:
  File "anyio\_backends\_asyncio.py", line 597, in __aexit__
  File "anyio\_backends\_asyncio.py", line 668, in task_done
  File "D:\Crynux Node\_internal\crynux_server\node_manager\node_manager.py", line 262, in _init
    async for attemp in AsyncRetrying(
  File "tenacity\_asyncio.py", line 71, in __anext__
  File "tenacity\__init__.py", line 314, in iter
  File "concurrent\futures\_base.py", line 449, in result
  File "concurrent\futures\_base.py", line 401, in __get_result
  File "D:\Crynux Node\_internal\crynux_server\node_manager\node_manager.py", line 269, in _init
    await to_thread.run_sync(
  File "anyio\to_thread.py", line 33, in run_sync
  File "anyio\_backends\_asyncio.py", line 877, in run_sync_in_worker_thread
asyncio.exceptions.CancelledError
[2024-05-15 18:08:35] [INFO    ] crynux_server.node_manager.state_manager: Node status is NodeStatus.Stopped, cannot leave the network automatically

In this case, the error message is:

crynux_server.node_manager.node_manager: Node manager init error: init task cancelled

And the full stack trace is:

Traceback (most recent call last):
  File "D:\Crynux Node\_internal\crynux_server\node_manager\node_manager.py", line 454, in _run
    async with create_task_group() as init_tg:
  File "anyio\_backends\_asyncio.py", line 597, in __aexit__
  File "anyio\_backends\_asyncio.py", line 668, in task_done
  File "D:\Crynux Node\_internal\crynux_server\node_manager\node_manager.py", line 262, in _init
    async for attemp in AsyncRetrying(
  File "tenacity\_asyncio.py", line 71, in __anext__
  File "tenacity\__init__.py", line 314, in iter
  File "concurrent\futures\_base.py", line 449, in result
  File "concurrent\futures\_base.py", line 401, in __get_result
  File "D:\Crynux Node\_internal\crynux_server\node_manager\node_manager.py", line 269, in _init
    await to_thread.run_sync(
  File "anyio\to_thread.py", line 33, in run_sync
  File "anyio\_backends\_asyncio.py", line 877, in run_sync_in_worker_thread
asyncio.exceptions.CancelledError