Lsp: OSError: [Errno 22] Invalid argument

[evandrocoan]

I am trying to reload the package with AutomaticPackageReloader, after restarting the server a few times, but LSP is not shutting down:

[Package Reloader] begin ======================================================
LSP:  --> shutdown
Traceback (most recent call last):
  File "F:\SublimeText\Data\Packages\AutomaticPackageReloader\package_reloader.py", line 69, in <lambda>
    sublime.set_timeout_async(lambda: self.run_async(pkg_name))
  File "F:\SublimeText\Data\Packages\AutomaticPackageReloader\package_reloader.py", line 88, in run_async
    reload_package(pkg_name, verbose=pr_settings.get('verbose'))
  File "F:\SublimeText\Data\Packages\AutomaticPackageReloader\reloader\reloader.py", line 40, in reload_package
    sublime_plugin.unload_module(modules[m])
  File "F:\SublimeText\sublime_plugin.py", line 61, in unload_module
    module.plugin_unloaded()
  File "F:\SublimeText\Data\Packages\LSP\boot.py", line 26, in plugin_unloaded
    shutdown()
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\main.py", line 49, in shutdown
    unload_all_clients()
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\clients.py", line 65, in unload_all_clients
    unload_client(client)
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\clients.py", line 113, in unload_client
    client.send_request(Request.shutdown(), lambda response: on_shutdown(client, response))
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\rpc.py", line 59, in send_request
    self.send_payload(request.to_payload(self.request_id))
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\rpc.py", line 86, in send_payload
    self.process.stdin.flush()
OSError: [Errno 22] Invalid argument

Related:

1. https://github.com/tomv564/LSP/issues/236#issuecomment-358385199 LSP doesn't handle server crashes well.

[tomv564]

It sounds like the language server had already exited before you reloaded the package, in which we may not have cleaned up the entry in window_clients.

Any idea under what condition the language server had exited?

[evandrocoan]

1. I had restarted the server (LSP: Restart Server command), but after it never responded. Now I do not remember if I had killed by my task manager the running instance of the Server after it.
2. But sometimes after restarting a few times, Sublime Text hangs completely with 0% CPU usage (Server and Sublime Text [this is not immediately related with the restart, i.e., happens some time like 10 minutes after]), but Sublime Text unhangs after I kill all running instances of the Server.

[tomv564]

Ok, if you can narrow down what causes this error or the hangs then we look
at stabilizing some of it.
On Sun, Jan 21, 2018 at 10:10 PM Evandro Coan [e-mail]
wrote:

>

1. I had restarted the server (LSP: Restart Server command), but after
   it never responded. Now I do not remember if I had killed by my task
   manager the running instance of the Server after it.
2. But sometimes after restarting a few times, Sublime Text hangs
   completely with 0% CPU usage (Server and Sublime Text), but Sublime Text
   unhangs after I kill all running instances of the Server.

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[evandrocoan]

I will keep watching this, until I see some pattern which allows me to reproduce it.

[evandrocoan]

Yeah, I confirmed, I just killed all the instances of the running server and this showed up:

LSP:  --> textDocument/didSave
Traceback (most recent call last):
  File "F:\SublimeText\sublime_plugin.py", line 487, in on_post_save_async
    callback.on_post_save_async(v)
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\documents.py", line 211, in on_post_save_async
    Events.publish("view.on_post_save_async", view)
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\events.py", line 28, in publish
    listener(*args)
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\documents.py", line 169, in notify_did_save
    client.send_notification(Notification.didSave(params))
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\rpc.py", line 63, in send_notification
    self.send_payload(notification.to_payload())
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\rpc.py", line 86, in send_payload
    self.process.stdin.flush()
OSError: [Errno 22] Invalid argument

And this when trying to reload the package:

[Package Reloader] begin ======================================================
LSP:  --> shutdown
2018-01-22 22:54:24,739 UTC - DEBUG - pyls.server - Got message: b'{"jsonrpc": "2.0", "id": 4, "method": "shutdown", "params": {}}':
2018-01-22 22:54:24,740 UTC - DEBUG - pyls.server - Server shut down, awaiting exit notification:
LSP:  --> exit
LSP:  --> shutdown
2018-01-22 22:54:24,743 UTC - DEBUG - pyls.server - Got message: b'{"jsonrpc": "2.0", "method": "exit", "params": {}}':
Traceback (most recent call last):
  File "F:\SublimeText\Data\Packages\AutomaticPackageReloader\package_reloader.py", line 69, in <lambda>
    sublime.set_timeout_async(lambda: self.run_async(pkg_name))
  File "F:\SublimeText\Data\Packages\AutomaticPackageReloader\package_reloader.py", line 88, in run_async
    reload_package(pkg_name, verbose=pr_settings.get('verbose'))
  File "F:\SublimeText\Data\Packages\AutomaticPackageReloader\reloader\reloader.py", line 40, in reload_package
    sublime_plugin.unload_module(modules[m])
  File "F:\SublimeText\sublime_plugin.py", line 61, in unload_module
    module.plugin_unloaded()
  File "F:\SublimeText\Data\Packages\LSP\boot.py", line 26, in plugin_unloaded
    shutdown()
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\main.py", line 49, in shutdown
    unload_all_clients()
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\clients.py", line 65, in unload_all_clients
    unload_client(client)
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\clients.py", line 113, in unload_client
    client.send_request(Request.shutdown(), lambda response: on_shutdown(client, response))
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\rpc.py", line 59, in send_request
    self.send_payload(request.to_payload(self.request_id))
  File "F:\SublimeText\Data\Packages\LSP\plugin\core\rpc.py", line 86, in send_payload
    self.process.stdin.flush()
OSError: [Errno 22] Invalid argument

[tomv564]

Okay, I added OSError to the exception handler when writing to stdin.

[evandrocoan]

Thanks! Finally the server can rest in peace and restart without restarting Sublime Text.