daemontools is a collection of tools by D.J. Bernstein for managing UNIX services. It monitors qmail services and saves error messages to one or more logs.

The multilog program has been modified to work both with timestamps and human readable datetimes (commit)

• the action t inserts an @, a precise timestamp, and a space in front of each line, using the same format as tai64n.

Example:

multilog t '-*' '+* fatal: *' ./main

prints the line

@400000003b4a39c23294b13c fatal: out of memory

• the action d inserts a human readable datetime (up to nanoseconds) in front of each line.

Example:

multilog d '-*' '+* fatal: *' ./main

prints the line

2024-07-29 10:36:08.811661123 fatal: out of memory

• the action m inserts a human readable datetime (up to milliseconds) in front of each line.

multilog m '-*' '+* fatal: *' ./main

prints the line

2024-07-29 10:36:08.811 fatal: out of memory

All flags are required to be the first action.

Other patches applied to the original djb daemontools-0.76:

• errno patch
• multilog_filesize_limit patch by Sam Tang, which extends the file log size limit to 100MB (default is 16MB).

You can find more info and ask for support at https://notes.sagredo.eu/en/qmail-notes-185/daemontools-14.html

Post any comment there.