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New language server seems to be frozen at analyzing workspace for more than 30 minutes #2297
Description
Environment data
- VS Code version: Insiders
- Extension version (available under the Extensions sidebar): Dev
- OS and version: Win 10, Mac
- Python version (& distribution if applicable, e.g. Anaconda): 3.6
- Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
- Relevant/affected Python packages and their versions: N/A
Actual behavior
Progress message does not go away
Expected behavior
Progress in status bar must go away.
Steps to reproduce:
- Open PTVSD repo
- Watch the progress indicator
Logs
Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)
Diagnostic Code: InvalidEnvironmentPathVariableDiagnostic, Message: The environment variable 'Path' seems to have some paths containing the '"' character. The existence of such a character is known to have caused the Python extension to not load. If the extension fails to load please modify your paths to remove this '"' character.
Starting Microsoft Python language server.
Downloading https://pvsc.blob.core.windows.net/python-language-server/Python-Language-Server-win-x64.0.1.18204.3.nupkg... complete.Unpacking archive... done.
[Info - 7:05:48 AM] Created Microsoft.PythonTools.Interpreter.Ast.AstPythonInterpreter instance from Microsoft.PythonTools.Interpreter.Ast.AstPythonInterpreterFactory
Initializing for C:\ProgramData\Anaconda3\python.exe
Loading files from c:\Development\VSCode\ptvsd
[Info - 7:06:05 AM] Reloading modules...
[Info - 7:06:08 AM] Reloading modules...
[Info - 7:06:10 AM] Reloading modules...
[Info - 7:06:23 AM] Reloading modules...
[Info - 7:06:40 AM] Reloading modules...
[Info - 7:06:42 AM] Reloading modules...
[Info - 7:06:49 AM] Reloading modules...
[Error - 7:08:44 AM] One or more errors occurred. (failed to parse file file:///c:/Development/VSCode/ptvsd/one.py)
[Info - 7:13:29 AM] Reloading modules...
[Info - 7:13:34 AM] Reloading modules...
[Info - 7:13:38 AM] Reloading modules...
[Info - 7:13:40 AM] Reloading modules...
[Info - 7:13:43 AM] Reloading modules...
[Info - 7:13:44 AM] Reloading modules...
[Info - 7:13:47 AM] Reloading modules...
Output from Console under the Developer Tools panel (toggle Developer Tools on under Help)
Activity
xobs commentedon Aug 2, 2018
I'm experiencing this issue as well.
Relatedly, my vscode is currently in a state where it is not analyzing the workspace, vscode is idle, but
Microsoft.Python.LanguageServer.exeis using 22% CPU. So whileAnalyzing workspace, ${n} items remaining...is one indicator of the issue, it's not the only indicator, and sometimes the language server can spin on its own.DonJayamanne commentedon Aug 3, 2018
Happened again today (on a Mac):
derekwallace commentedon Aug 3, 2018
I experience this issue aswell.
[-]New language server seems to frozen at analyzing workspace for more than 30 minutes[/-][+]New language server seems to be frozen at analyzing workspace for more than 30 minutes[/+]ijstokes commentedon Aug 4, 2018
Here too. Not sure if it is helpful, but I'm also having this pop up in the
OUTPUTtab:(and Don Jayamanne (@DonJayamanne) has Microsoft taken over the vscode-python repo? IOW, is this the main repo to track and report issues to?)
ijstokes commentedon Aug 4, 2018
ijstokes commentedon Aug 4, 2018
DonJayamanne commentedon Aug 7, 2018
MikhailArkhipov commentedon Aug 7, 2018
Steve Dower (@zooba) may be interested in microsoft/vscode#55815 as well.
16 remaining items
sneridagh commentedon Sep 13, 2018
Same here, CPU spinning to 100% "Analyzing workspace". I have a large one, but who that works at a professional level doesn't?
What did it "analyze"?
allenyllee commentedon Sep 13, 2018
I've encountered the same problem in my ubuntu 18.04 64bit with vscode 1.27.1, vscode-python 2018.8.0 and python 3.6.5
here is the trace output log:
output log
and the result of top command:
Although CPU has idled while this small project, the memory consumption seems too high.
the project is https://github.com/fxsjy/jieba
MikhailArkhipov commentedon Sep 13, 2018
Remaining items in the status bar may be UI issue if CPU load is low. If LS was restarted b/c of exception (most probable cause is microsoft/python-language-server#72) then UI just shows string from the previous instance.
MikhailArkhipov commentedon Sep 13, 2018
microsoft/python-language-server#92
richardwb commentedon Sep 14, 2018
One thing I noticed here is some symlink folder structures can cause really deep parsing queues to form.
Recursive/looping symlinks can end up propagating pretty deeply and if there's actual content anywhere along the way it will take a long time. For example, given a simple folder structure like this:
And
test.pyis simply "import folder.lib" so we start traversing the tree, I see the following trace output:I managed to work around this by just adding the suspect symlinks to my VSCode excludes.
There's also some other odd behavior with dead symlinks, but it doesn't seem to act as poorly.
Add telemetry collection for analysis reporting complete.
sneridagh commentedon Sep 17, 2018
Symlink could cause it... I have tons of them (I use zc.buildout, with an extension (omelette) that makes all the eggs used by the project available in the same tree, using symlinks).
I'm not the only one using it... in Zope/Plone world is quite usual that devs use these tools.
It would be great if we can fix it somehow.
samuelpcabral commentedon Sep 17, 2018
Same thing here! Windows 10, with Python 2.7
and it looks like it's consuming far more memory than it should.
mungojam commentedon Sep 17, 2018
I wondered if it is processing my ./.venv pipenv package folder or some other temporary sub-folder. The number of items it said it was processing seemed much larger than my code base.
sneridagh commentedon Sep 17, 2018
True, I didn't take into account that virtualenv also uses symlinks... don't know about pipenv, but I guess it also does it. So, there's a major problem then that might affect the vast majority of people.
xobs commentedon Sep 17, 2018
It's happening on Windows as well, which doesn't use symlinks for virtualenv (that I know of). Also, my project doesn't use virtualenv.
However, it does use environment variables and mess with
PYTHONPATH, which may be related to the cause.Add telemetry collection for analysis reporting complete.
MikhailArkhipov commentedon Sep 17, 2018
microsoft/python-language-server#96