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FileNotFoundError: [Errno 2] No such file or directory: 'pylsp'

DylanS
New Contributor II

‎02-12-2024 08:48 AM

We are intermittently experiencing the below issue when running mundane code in our databricks notebook environment using 13.3 LTS runtime, with a compute pool with r6id.large on-demand instances, using local storage.

We first noticed this late last week, around the same time as the 14.3 LTS release.

DylanS_0-1707756410914.png

Observed error messages:

Spoiler

py4j.Py4JException: An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last):

  File "/databricks/spark/python/lib/py4j-0.10.9.7-src.zip/py4j/clientserver.py", line 617, in _call_proxy

    return_value = getattr(self.pool[obj_id], method)(*params)

  File "/databricks/python_shell/dbruntime/pythonPathHook.py", line 118, in initStartingDirectory

    self._handle_sys_path_maybe_updated()

  File "/databricks/python_shell/dbruntime/pythonPathHook.py", line 90, in _handle_sys_path_maybe_updated

    self._restart_language_server_if_needed()

  File "/databricks/python_shell/dbruntime/pythonPathHook.py", line 85, in _restart_language_server_if_needed

    ls_manager.restart()

  File "/databricks/python_shell/dbruntime/lsp_backend/lsp_manager.py", line 348, in restart

    self.start()

  File "/databricks/python_shell/dbruntime/lsp_backend/lsp_manager.py", line 290, in start

    self.server_process = subprocess.Popen(

  File "/usr/lib/python3.10/subprocess.py", line 971, in __init__

    self._execute_child(args, executable, preexec_fn, close_fds,

  File "/usr/lib/python3.10/subprocess.py", line 1863, in _execute_child

    raise child_exception_type(errno_num, err_msg, err_filename)

FileNotFoundError: [Errno 2] No such file or directory: 'pylsp'

 

at py4j.Protocol.getReturnValue(Protocol.java:476)

at py4j.reflection.PythonProxyHandler.invoke(PythonProxyHandler.java:108)

at com.sun.proxy.$Proxy70.initStartingDirectory(Unknown Source)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.$anonfun$setWsfsWorkingDir$1(PythonDriverLocalBase.scala:316)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.$anonfun$setWsfsWorkingDir$1$adapted(PythonDriverLocalBase.scala:307)

at scala.Option.foreach(Option.scala:407)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.setWsfsWorkingDir(PythonDriverLocalBase.scala:307)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.addLibrariesToPythonPath(PythonDriverLocalBase.scala:244)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.setUpBeforeCommandRun(JupyterDriverLocal.scala:628)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.$anonfun$executePython$1(JupyterDriverLocal.scala:814)

at com.databricks.backend.daemon.driver.JupyterKernelListener.preExecuteCommand(JupyterKernelListener.scala:951)

at com.databricks.backend.daemon.driver.JupyterKernelListener.executeCommand(JupyterKernelListener.scala:1080)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.executePython(JupyterDriverLocal.scala:814)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.repl(JupyterDriverLocal.scala:697)

at com.databricks.backend.daemon.driver.DriverLocal.$anonfun$execute$33(DriverLocal.scala:997)

at com.databricks.unity.UCSEphemeralState$Handle.runWith(UCSEphemeralState.scala:41)

at com.databricks.unity.HandleImpl.runWith(UCSHandle.scala:99)

at com.databricks.backend.daemon.driver.DriverLocal.$anonfun$execute$22(DriverLocal.scala:980)

at com.databricks.logging.UsageLogging.$anonfun$withAttributionContext$1(UsageLogging.scala:426)

at scala.util.DynamicVariable.withValue(DynamicVariable.scala:62)

at com.databricks.logging.AttributionContext$.withValue(AttributionContext.scala:196)

at com.databricks.logging.UsageLogging.withAttributionContext(UsageLogging.scala:424)

at com.databricks.logging.UsageLogging.withAttributionContext$(UsageLogging.scala:418)

at com.databricks.backend.daemon.driver.DriverLocal.withAttributionContext(DriverLocal.scala:69)

at com.databricks.logging.UsageLogging.withAttributionTags(UsageLogging.scala:470)

at com.databricks.logging.UsageLogging.withAttributionTags$(UsageLogging.scala:455)

at com.databricks.backend.daemon.driver.DriverLocal.withAttributionTags(DriverLocal.scala:69)

at com.databricks.backend.daemon.driver.DriverLocal.execute(DriverLocal.scala:935)

at com.databricks.backend.daemon.driver.DriverWrapper.$anonfun$tryExecutingCommand$1(DriverWrapper.scala:798)

at scala.util.Try$.apply(Try.scala:213)

at com.databricks.backend.daemon.driver.DriverWrapper.tryExecutingCommand(DriverWrapper.scala:790)

at com.databricks.backend.daemon.driver.DriverWrapper.executeCommandAndGetError(DriverWrapper.scala:643)

at com.databricks.backend.daemon.driver.DriverWrapper.executeCommand(DriverWrapper.scala:744)

at com.databricks.backend.daemon.driver.DriverWrapper.runInnerLoop(DriverWrapper.scala:520)

at com.databricks.backend.daemon.driver.DriverWrapper.runInner(DriverWrapper.scala:436)

at com.databricks.backend.daemon.driver.DriverWrapper.run(DriverWrapper.scala:279)

at java.lang.Thread.run(Thread.java:750)

Additional related error messages:

Spoiler

py4j.Py4JException: Error while sending a command.

at py4j.CallbackClient.sendCommand(CallbackClient.java:397)

at py4j.CallbackClient.sendCommand(CallbackClient.java:356)

at py4j.reflection.PythonProxyHandler.invoke(PythonProxyHandler.java:106)

at com.sun.proxy.$Proxy58.updateWsfsWorkingDir(Unknown Source)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.$anonfun$setWsfsWorkingDir$1(PythonDriverLocalBase.scala:318)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.$anonfun$setWsfsWorkingDir$1$adapted(PythonDriverLocalBase.scala:307)

at scala.Option.foreach(Option.scala:407)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.setWsfsWorkingDir(PythonDriverLocalBase.scala:307)

at com.databricks.backend.daemon.driver.PythonDriverLocalBase.addLibrariesToPythonPath(PythonDriverLocalBase.scala:244)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.setUpBeforeCommandRun(JupyterDriverLocal.scala:628)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.$anonfun$executePython$1(JupyterDriverLocal.scala:814)

at com.databricks.backend.daemon.driver.JupyterKernelListener.preExecuteCommand(JupyterKernelListener.scala:951)

at com.databricks.backend.daemon.driver.JupyterKernelListener.executeCommand(JupyterKernelListener.scala:1080)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.executePython(JupyterDriverLocal.scala:814)

at com.databricks.backend.daemon.driver.JupyterDriverLocal.repl(JupyterDriverLocal.scala:697)

at com.databricks.backend.daemon.driver.DriverLocal.$anonfun$execute$33(DriverLocal.scala:997)

at com.databricks.unity.UCSEphemeralState$Handle.runWith(UCSEphemeralState.scala:41)

at com.databricks.unity.HandleImpl.runWith(UCSHandle.scala:99)

at com.databricks.backend.daemon.driver.DriverLocal.$anonfun$execute$22(DriverLocal.scala:980)

at com.databricks.logging.UsageLogging.$anonfun$withAttributionContext$1(UsageLogging.scala:426)

at scala.util.DynamicVariable.withValue(DynamicVariable.scala:62)

at com.databricks.logging.AttributionContext$.withValue(AttributionContext.scala:196)

at com.databricks.logging.UsageLogging.withAttributionContext(UsageLogging.scala:424)

at com.databricks.logging.UsageLogging.withAttributionContext$(UsageLogging.scala:418)

at com.databricks.backend.daemon.driver.DriverLocal.withAttributionContext(DriverLocal.scala:69)

at com.databricks.logging.UsageLogging.withAttributionTags(UsageLogging.scala:470)

at com.databricks.logging.UsageLogging.withAttributionTags$(UsageLogging.scala:455)

at com.databricks.backend.daemon.driver.DriverLocal.withAttributionTags(DriverLocal.scala:69)

at com.databricks.backend.daemon.driver.DriverLocal.execute(DriverLocal.scala:935)

at com.databricks.backend.daemon.driver.DriverWrapper.$anonfun$tryExecutingCommand$1(DriverWrapper.scala:798)

at scala.util.Try$.apply(Try.scala:213)

at com.databricks.backend.daemon.driver.DriverWrapper.tryExecutingCommand(DriverWrapper.scala:790)

at com.databricks.backend.daemon.driver.DriverWrapper.executeCommandAndGetError(DriverWrapper.scala:643)

at com.databricks.backend.daemon.driver.DriverWrapper.executeCommand(DriverWrapper.scala:744)

at com.databricks.backend.daemon.driver.DriverWrapper.runInnerLoop(DriverWrapper.scala:520)

at com.databricks.backend.daemon.driver.DriverWrapper.runInner(DriverWrapper.scala:436)

at com.databricks.backend.daemon.driver.DriverWrapper.run(DriverWrapper.scala:279)

at java.lang.Thread.run(Thread.java:750)

Caused by: py4j.Py4JNetworkException: Error while sending a command: c

p0

updateWsfsWorkingDir

s/Workspace/Users/[user omitted]

e

 

at py4j.ClientServerConnection.sendCommand(ClientServerConnection.java:266)

at py4j.CallbackClient.sendCommand(CallbackClient.java:384)

... 37 more

Caused by: py4j.Py4JException: Received empty command

at py4j.ClientServerConnection.sendCommand(ClientServerConnection.java:249)

... 38 more

Spoiler
IllegalStateExeception: Internal error: notebook command received after detach

 

7 REPLIES 7

Navya_R
Databricks Employee
Databricks Employee

‎02-13-2024 11:42 PM

Hi Dylan,

Is your cluster using DCS? If so we have an ongoing issue which may be related to the error you are facing. While we work on a fix, can you try the below workaround to resolve the issue:

Spin up the cluster using the below custom image:

`````
custom:release__13.3.x-snapshot-scala2.12__databricks-universe__13.3.8__4966bd2__0f3d13f__jenkins__a041514__format-3
`````

How to spin up a cluster using a custom image?
Follow this: https://kb.databricks.com/en_US/clusters/run-a-custom-databricks-runtime-on-your-cluster

DylanS
New Contributor II
In response to Navya_R

‎02-14-2024 07:28 AM

We are using DCS, yes. I'll have a look at this workaround, thanks!

0 Kudos

vogeljo_siemens
New Contributor II
In response to Navya_R

‎02-14-2024 07:30 AM - edited ‎02-14-2024 07:31 AM

Hi Navya,

using the provided custom image fixes the issue in my case. Can you give an estimation on when the issue might be resolved / how long the custom image will be available? Also, is 14.3 LTS also impacted by this same issue?

0 Kudos

Navya_R
Databricks Employee
Databricks Employee

‎02-15-2024 12:59 AM

Hi Vogeljo,

Yes DBR 14.3 is impacted as well. The fix for the workspaces will be gradually rolled out from Feb 26 to March 4. You can continue to use this custom image until then.

alemo
New Contributor III

‎03-07-2024 05:50 AM

Hello @Navya_R 

Is there a release date for this fix ?

 

thanks

engixcmt
New Contributor II

‎03-19-2024 11:56 AM

Hello @Navya_R ,

We are facing a similar issue when using 14.3LTS with DCS

For us, certain Global Inits are not getting applied. Is there a patch we can use for 14.3 LTS as well?

0 Kudos

alemo
New Contributor III
In response to engixcmt

‎03-20-2024 12:59 AM

The solution I found to my problem is was to add this at the end of my dockerfile:

ENV LANG="C.UTF-8"
ENV LC_ALL="C.UTF-8"

Apparently, my issue was caused by a bad locale in the DBC docker image.

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