Werk #8560: Check_MK helpers: Output warning message to cmc.log when detecting new open file descriptors after running checks
| Component | The Checkmk Micro Core | ||
| Title | Check_MK helpers: Output warning message to cmc.log when detecting new open file descriptors after running checks | ||
| Date | Oct 25, 2016 | ||
| Level | Trivial Change | ||
| Class | New Feature | ||
| Compatibility | Compatible - no manual interaction needed | ||
| Checkmk versions & editions |
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In case a helper detects that it has new open file descriptors after performing checks, it writes lines like these to the cmc.log:
2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> Open file descriptors changed after %d cycles. Currently open: 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 0 -> socket:[1030046] 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 1 -> pipe:[1030047] 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 2 -> pipe:[1030047] 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 3 -> socket:[1030046] 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 4 -> /tmp/x 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 5 -> UNKNOWN 2016-10-25 16:15:59 [4] [Check_MK helper 11344] >> 6 -> /dev/urandom
This may help detect and debug file descriptor leaks.