Constant "Read from event FD failed." Errors in Log File

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  • When the Icinga client says that "Read from event FD failed", what should I investigate?


    I found some examples of the error message on GitHub but I don't understand why buffer sizes are being checked.

  • It means that for some reason the socket handle is still open, but there is nothing read (the OS sort of closed it). We've seen that problem in a not yet reproducible manner when the socket goes away, or an unclean service restart. Try to manually restart the Icinga 2 service and watch it again.