If you encounter the 'Time synchronization failed during discovery' error using the perl Net::SNMP library there may be a fairly easy work around. It may be as easy as editing the Net::SNMP module to not invoke this error. The following advice should be executed as root.
...
Always make a backup of a module prior to editing it. A command such as 'cp SNMP.pm SNMP.pm.unpatched works well.In order to prevent Net::SNMP from failing due to this error we edited it in the following fashion.
| Code Block |
|---|
$ diff -bu SNMP.pm.original SNMP.pm.patched
--- SNMP.pm.original 2018-01-26 08:36:28.833348881 +0900
+++ SNMP.pm.patched 2018-01-26 14:25:42.798070662 +0900
@@ -2617,8 +2617,9 @@
# counter in the varBindList..." If another error is returned, we
# assume that the synchronization has failed.
- if (($this->{_security}->discovered()) &&
- ($this->{_error} =~ /usmStatsNotInTimeWindows/))
+ if ($this->{_security}->discovered())
+ #if (($this->{_security}->discovered()) &&
+ # ($this->{_error} =~ /usmStatsNotInTimeWindows/))
{
$this->_error_clear();
DEBUG_INFO('discovery and synchronization complete');
@@ -2628,10 +2629,10 @@
# If we received the usmStatsNotInTimeWindows report or no error, but
# we are still not synchronized, provide a generic error message.
- if ((!$this->{_error}) || ($this->{_error} =~ /usmStatsNotInTimeWindows/)) {
- $this->_error_clear();
- $this->_error('Time synchronization failed during discovery');
- }
+ #if ((!$this->{_error}) || ($this->{_error} =~ /usmStatsNotInTimeWindows/)) {
+ # $this->_error_clear();
+ # $this->_error('Time synchronization failed during discovery');
+ #}
DEBUG_INFO('synchronization failed'); |