# Clearing Graph keys in Forward Destinations (integrated) of old Dns resolver description keys in v3.3/FTL 3.0
**URL:** https://discourse.pi-hole.net/t/clearing-graph-keys-in-forward-destinations-integrated-of-old-dns-resolver-description-keys-in-v3-3-ftl-3-0/8183
**Category:** Help
**Created:** [March 22, 2018, 10:58pm UTC](https://discourse.pi-hole.net/t/clearing-graph-keys-in-forward-destinations-integrated-of-old-dns-resolver-description-keys-in-v3-3-ftl-3-0/8183 "2018-03-22T22:58:21Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@hapollo](https://discourse.pi-hole.net/u/hapollo)
#### Post date: [March 22, 2018, 10:58pm UTC](https://discourse.pi-hole.net/t/clearing-graph-keys-in-forward-destinations-integrated-of-old-dns-resolver-description-keys-in-v3-3-ftl-3-0/8183/1 "2018-03-22T22:58:21Z")
Prior to the update to 3.3 and FTL 3.0, when I flushed the logs, the Forward Destinations graphs would reset and clear any old DNS resolvers that were no longer in the Upstream DNS Servers list.
Since the upgrade, anytime I flush the logs to clear the graphs, even clearing it twice within 2 minutes, the old resolver description keys still remain.
I tried Pihole -r Both repairing and reconfiguring but cannot clear the old resolvers after reboot.
I supposed I can reset the stats like here:
> [@How can i reset all pihole stats?](https://discourse.pi-hole.net/t/how-can-i-reset-all-pihole-stats/7749):
>
> Hey everybody, i need to know how i can reset all pihole stats and logs? pihole -f dont work i can still see Top Domains, Top Blocked Domains, Top Clients -.-
Is there a new method to clear this?
I'm guessing, the resolvers still remain in the new 3.3 /FTL 3.0 version because of the long term data feature of 3.3?
Thanks.
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### Author:  [@jacob.salmela](https://discourse.pi-hole.net/u/jacob.salmela)
#### Post date: [March 23, 2018, 1:41am UTC](https://discourse.pi-hole.net/t/clearing-graph-keys-in-forward-destinations-integrated-of-old-dns-resolver-description-keys-in-v3-3-ftl-3-0/8183/2 "2018-03-23T01:41:02Z")
> [@How do I delete long-term stats from Pi-hole?](https://discourse.pi-hole.net/t/how-do-i-delete-long-term-stats-from-pi-hole/6128):
>
> Add the following line to /etc/pihole/pihole-FTL.conf (create this file if it does not exist): DBFILE= Then delete the database: rm -f /etc/pihole/pihole-FTL.db
> [@How do I disable FTL's database?](https://discourse.pi-hole.net/t/how-do-i-disable-ftls-database/5624):
>
> Setting MAXDBDAYS=0 in /etc/pihole/pihole-FTL.conf and restarting FTL will disable the database. There are also several other options you can adjust in FTL's config file as described [here](https://github.com/pi-hole/FTL#ftls-config-file). To enable, set it back to 365 or whatever size you'd like: MAXDBDAYS=365
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### Author:  [@system](https://discourse.pi-hole.net/u/system)
#### Post date: [April 13, 2018, 1:41am UTC](https://discourse.pi-hole.net/t/clearing-graph-keys-in-forward-destinations-integrated-of-old-dns-resolver-description-keys-in-v3-3-ftl-3-0/8183/3 "2018-04-13T01:41:21Z")
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