Two clangd processes are running

[jaunis-ateme]

Environment: Ubuntu 24.04
Versions:

Eclipse has two "clangd" children processes:

$ ps axjf
 448043  448047  448043   23221 pts/0     448043 Sl+   1001  17:22  |   |       \_ /home/jaunis/eclipse-2025-09//plugins/org.eclipse.justj.openjdk.hotspot.jre.full.linux.x86_64_21.0.9.v20251105-0741/jre/bin/java [...]
[...]
 448047  452702  448043   23221 pts/0     448043 Sl+   1001   4:55  |   |           \_ /usr/bin/clangd-20 --clang-tidy --background-index --completion-style=detailed --pretty --query-driver=/usr/bin/* --function-arg-placeholders=1 --header-insertion=never
[...]
 448047  469376  448043   23221 pts/0     448043 Sl+   1001   0:54  |   |           \_ /usr/bin/clangd-20 --clang-tidy --background-index --completion-style=detailed --pretty --query-driver=/usr/bin/* --function-arg-placeholders=1 --header-insertion=never

The two pids match two consecutive launches of clangd in the console.
Please find attached an excerpt of the clangd console. I stripped much of it to remove sensitive file names; please tell me if it's an issue, I may provide the full log with file obfuscated names.

clangd_console_stripped.txt

[ghentschke]

Can you please add the clangd log before the shutdown of the first instance? Do you know why the first instance has been stopped? I am wondering why the process has not been killed because clangd seems to shutdown. A Eclipse log with stacktraces would be helpful as well.

Is this behavior reproducible? If so, please add a description.

[jaunis-ateme]

Please find attached the logs before the first shutdown.

In the eclipse logs there are only two relevant lines:

!ENTRY org.eclipse.lsp4e 2 0 2026-03-20 10:43:15.770
!MESSAGE Could not get language server due to timeout after 50 milliseconds

For the moment I haven't reproduced this behavior, I'll keep you informed if I see it happen again.

logs_before_shutdown.txt