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510 | Chapter 14: Signals, Transactions, and Syslog
14.1.5 SIGUSR1
Tell sendmail to dump its states sendmail signal
Beginning withV8.6.5, sendmail responds to a SIGUSR1 signal. This signal causes sendmail
to syslog at LOG_DEBUG the several items that define its state.* That syslog output
begins with a line that looks like this:
--- dumping state on reason: $j = val ---
where reason can be any one of the following:
user signal
The information has been logged because sendmail received a SIGUSR1 signal. In this
instance, the daemon logs the information and continues to run.
daemon lost $j
The information has been logged because a running daemon discovered that the value
in $j (the canonical name of this host, ?§21.9.59 on page 830) disappeared from the
class $=w (the list of all names by which the local host is known, ?§22.6.16 on page
876). This test is made and this information is logged only if sendmail was compiled
with XDEBUG defined (?§3.4.78 on page 152). In this instance, the daemon logs the
information and aborts.
daemon $j lost dot
The information has been logged because a running daemon discovered that the value
in $j (the canonical name of this host, ?§21.9.59 on page 830) was no longer canonical
(no longer contained a dot inside it).
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