View source for Persistent Storage Does Not Get Updated Immediately

{{GoodAnswer}}

== Question ==

When I make a dynamic modification to the snmp agent it does not immediately update the /var/net-snmp/snmpd.conf file with the new data (example: user password changes, new trap destinations, vacm changes, etc). 

If the snmpd crashed, or some one did a "kill -9", all my changes are lost.

== Answer ==

You're right!  It doesn't update it right away.  This is primarily because it was originally conceived as an expensive operation and not worth doing right away.  The agent will save the data upon a proper shutdown, but it won't if it doesn't shutdown properly.

'''Note:''' ''You should never kill -9 any daemon except as a last resort!!''

=== Solution: Force a Save ===

You can, actually, force the snmpd daemon to save the data.  To do this, send a set request to versionSavePersistentData.0 with an integer value of 1.

  snmpset HOST versionSavePersistentData.0 = 1

This will force an immediate save of the data.

[[Category:agent]]
[[Category:persistence]]