From 5b9265ad19d6596a8b599eccc64accb67e3c664e Mon Sep 17 00:00:00 2001 From: Magnus Henoch Date: Mon, 21 Nov 2016 11:48:54 +0000 Subject: Remove vestiges of watchdog support in heart Hardware watchdog support was removed from heart in R13A, but there were still some vestiges in the code and the documentation. - Remove mentions of the HW_WD_DISABLE variable, as it's no longer used. - Remove the HEART_BEAT_BOOT_DELAY variable, as it was only used for the hardware watchdog. --- lib/kernel/doc/src/heart.xml | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'lib/kernel/doc/src/heart.xml') diff --git a/lib/kernel/doc/src/heart.xml b/lib/kernel/doc/src/heart.xml index 59a046bf4d..5b5b71e521 100644 --- a/lib/kernel/doc/src/heart.xml +++ b/lib/kernel/doc/src/heart.xml @@ -37,10 +37,7 @@ the heart port program is to check that the Erlang runtime system it is supervising is still running. If the port program has not received any heartbeats within HEART_BEAT_TIMEOUT seconds - (defaults to 60 seconds), the system can be rebooted. Also, if - the system is equipped with a hardware watchdog timer and is - running Solaris, the watchdog can be used to supervise the entire - system.

+ (defaults to 60 seconds), the system can be rebooted.

An Erlang runtime system to be monitored by a heart program is to be started with command-line flag -heart (see also erl(1)). @@ -51,17 +48,13 @@ or a terminated Erlang runtime system, environment variable HEART_COMMAND must be set before the system is started. If this variable is not set, a warning text is printed but - the system does not reboot. However, if the hardware watchdog is - used, it still triggers a reboot HEART_BEAT_BOOT_DELAY - seconds later (defaults to 60 seconds).

+ the system does not reboot.

To reboot on Windows, HEART_COMMAND can be set to heart -shutdown (included in the Erlang delivery) or to any other suitable program that can activate a reboot.

-

The hardware watchdog is not started under Solaris if - environment variable HW_WD_DISABLE is set.

-

The environment variables HEART_BEAT_TIMEOUT and - HEART_BEAT_BOOT_DELAY can be used to configure the heart - time-outs; they can be set in the operating system shell before Erlang +

The environment variable HEART_BEAT_TIMEOUT + can be used to configure the heart + time-outs; it can be set in the operating system shell before Erlang is started or be specified at the command line:

 % erl -heart -env HEART_BEAT_TIMEOUT 30 ...
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