Language server features not available: "write EPIPE: undefined"

[JeroemvS]

Describe the problem

Language server-based features are intermittently not available in Arduino IDE.

When I right click on a symbol in the editor, the context menu does not contain the items associated with the language server:

I see an error notification:

**Error communicating with the language server: Error: write EPIPE: undefined

To reproduce

Don't know

Expected behavior

Language server-based features are always available.

Arduino IDE version

2.1.0

Operating system

Windows

Operating system version

10

Additional context

Logs from a session with the arduino.language.log setting enabled:

inols-err.zip

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Related discussion: https://forum.arduino.cc/t/f12-ctrl-f12-enz-stopd-working/1123706

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I am using the "ESP32 Dev Module" board (FQBN esp32:esp32:esp32).

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I am also experiencing a problem where, when the language server based features are available, it takes at least 3+ minutes before anything happens.

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details

[robbi-blechdose]

(Likely) this issue caused the IDE to generate 464 GB log file, spamming this error over and over.
Many of these share the same timestamp down to the second, maybe rate-limiting the error would be an option?

[susanw1]

I'd like to report similar to @robbi-blechdose - I started work, found log files had filled my disk due to repeated logging of the EPIPE exception. I'd agree, a rate limiter or duplicate compressor might be a useful addition?

2023-10-16 23:59:59 2023-10-16T22:59:59.999Z root ERROR Error: write EPIPE
    at afterWriteDispatched (node:internal/stream_base_commons:160:15)
    at writeGeneric (node:internal/stream_base_commons:151:3)
    at Socket._writeGeneric (node:net:917:11)
    at Socket._write (node:net:929:8)
    at writeOrBuffer (node:internal/streams/writable:392:12)
    at _write (node:internal/streams/writable:333:10)
    at Writable.write (node:internal/streams/writable:337:10)
    at console.value (node:internal/console/constructor:300:16)
    at console.warn (node:internal/console/constructor:382:26)
    at process.env.IDE2_FILE_LOGGER.console.<computed> (/opt/arduino/arduino-ide_2.2.1_Linux_64bit/resources/app/lib/backend/main.js:2:719107)

I don't have info about what triggered it - first I knew was when other apps were complaining about disk space. I'll keep an eye open. I'm running:

Linux **** 5.15.0-84-generic #93-Ubuntu SMP Tue Sep 5 17:16:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux