Ben SchumacherandClaude Sonnet 4.6 848ceb3c73 [MM-67978] Add open file descriptor count to support packet diagnostics (#35834)
* MM-67978: Add open file descriptor count to support packet diagnostics

Add OpenFileDescriptors and MaxFileDescriptors fields to
SupportPacketDiagnostics.Server. On Linux the open count is read from
/proc/self/fd; on macOS from /dev/fd. Both platforms use
syscall.Getrlimit(RLIMIT_NOFILE) for the soft limit. Unsupported
platforms (e.g. Windows) return -1 for both fields.

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

* MM-67978: Move OpenFileDescriptors/MaxFileDescriptors after TotalMemoryMB

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

* fix: guard int64 overflow in getMaxFileDescriptors and update tests for unsupported platforms

Add overflow check before casting rlimit.Cur (uint64) to int64 in
getMaxFileDescriptors on Linux. Update fd_test.go and
support_packet_test.go assertions to accept -1 as a valid sentinel for
unsupported platforms instead of requiring a strictly positive value.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* revert: remove unrelated test refactoring from support_packet_test.go

Restore the three unrelated changes that crept into this branch:
- SetLogRootPathOverride instead of t.Setenv("MM_LOG_PATH", ...)
- installTypeOverride field instead of t.Setenv(envVarInstallType, ...)
- Restore explanatory comment in TestGetSanitizedConfigFile

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
2026-04-21 09:54:32 +00:00
2018-05-30 10:23:25 -04:00
2026-04-01 13:03:36 +00:00

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