01-12-2022 01:35 AM - edited 01-12-2022 01:37 AM
Does anybody have experience with the innitial performance impact of enabling DHCP Lease Scavenging?
Infoblox documentation states: "Note: If you plan to enable this feature after upgrading from a previous NIOS version, Infoblox recommends that you enable it during off-peak hours, as it may impact DHCP services."
Configuring DHCP IPv4 and IPv6 Common Properties (infoblox.com)
I have 2 IB-1425 and an IB-V2215 as Grid Master with around 320.000 DHCP leases in the database of which are 220.000 in Free/Backup state.
After enabling DHCP Lease Scavenging a big portion of these Free/Backup will get deleted.
How long will it take to clear the leases in database?
Will I notice a performance impact during lease cleanup? IB-1425 CPU is about 80% idle during peak hours, IB-V2215 is about 90% idle during peak hours.
Solved! Go to Solution.
01-18-2022 08:06 AM
There is no actual way to know however there is a widget that you can check on how long it took after it ran.
here is a good guide for information:
Hope this helps,
01-27-2022 05:24 AM
the widget and the documents seems to be only about DNS Scavenging.
In the meantime I got feedback from our Infoblox Support Engineer that the performance impact of the initial scavenging is not that big.
Nevertheless I will enable it during low load hours in the next 2 weeks or so.
I will monitor the performance impact after enabling and give feedback here.
02-14-2022 05:01 AM