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Today's Topics:
1. Expiry for logged IP retention ? (Peter Grasso)
2. Re: Expiry for logged IP retention ? (Oliver Gorwits)
3. Re: Expiry for logged IP retention ? (Mark Boolootian)
4. Netdisco docker upgrade (Josep Manel Andr?s Moscard?)
--- Begin Message ---
Hi guys,
We have a reasonably large site, and my Netdisco 2 install was getting a
little sluggish, so I have adjusted the retention levels with:
#Modified Expiry:
expire_devices: 14
expire_nodes: 30
expire_nodes_archive: 30
expire_jobs: 14
This has worked quite nicely, but I cannot find a way to change the retention
for the logged IP addresses:
Statistics for this installation
242 devices with 895 IPs
8,520 interfaces of which 4,628 are up
213 layer 2 links between devices
3,169 nodes logged, of which 1,400 are active
4,052,047 IPs logged, of which 66,615 are active
Statistics last generated on 2018-01-17
We have 4 million IP addresses logged, and this is the only statistic that does
not seem to have reduced after I changed the expiry times down.
In real terms we only need to retain about one month's data for IP addresses,
is there any way to tune this parameter ?
Regards,
Peter Grasso
Network Project Administrator
--- End Message ---
--- Begin Message ---
Hi Peter
After discussion with another user of Netdisco I recently discovered
that we do have a longstanding issue relating to exactly this (probably
the behaviour has been there since Netdisco 2.0 was first created).
Briefly, my understanding is that Netdisco is keeping the IPs where the
MAC address is still also present. For situations where a MAC is roaming
and getting different IPs all the time, this can certainly balloon the
archive (I'm sure there are other scenarios too). For the curious, the
code is here:
https://github.com/netdisco/netdisco/blob/master/lib/App/Netdisco/DB/ResultSet/Node.pm#L122
If you are really pressed for space you can delete entries from the
node_ip table where time_last is greater than a given value. There will
not be any side effect if you just go ahead and do this manually.
I'm not sure when we'll get a fix in, but you are not the only site with
the issue!
regards,
oliver.
On 2018-01-17 20:13, Peter Grasso wrote:
Hi guys,
We have a reasonably large site, and my Netdisco 2 install was getting
a little sluggish, so I have adjusted the retention levels with:
#Modified Expiry:
expire_devices: 14
expire_nodes: 30
expire_nodes_archive: 30
expire_jobs: 14
This has worked quite nicely, but I cannot find a way to change the
retention for the logged IP addresses:
STATISTICS FOR THIS INSTALLATION
242 DEVICES WITH 895 IPS
8,520 INTERFACES OF WHICH 4,628 ARE UP
213 LAYER 2 LINKS BETWEEN DEVICES
3,169 NODES LOGGED, OF WHICH 1,400 ARE ACTIVE
4,052,047 IPS LOGGED, OF WHICH 66,615 ARE ACTIVE
STATISTICS LAST GENERATED ON 2018-01-17
We have 4 million IP addresses logged, and this is the only statistic
that does not seem to have reduced after I changed the expiry times
down.
In real terms we only need to retain about one month's data for IP
addresses, is there any way to tune this parameter ?
Regards,
Peter Grasso
Network Project Administrator
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--- End Message ---
--- Begin Message ---
> Briefly, my understanding is that Netdisco is keeping the IPs where the MAC
> address is still also present. For situations where a MAC is roaming and
> getting different IPs all the time, this can certainly balloon the archive
> (I'm sure there are other scenarios too). For the curious, the code is here:
Privacy addresses with IPv6 are a major factor.
--- End Message ---
--- Begin Message ---
Hi,
I have just upgraded the version , here is the Dockerfile I am using:
https://github.com/imimsri/netdisco/blob/master/Dockerfile
So, after the upgrade I've notice the neighbors are not shown correctly,
the main switch , which was previously looking as a star, now shows only
two connections.
I have done the following, but I bet those changes will be lost after
container's reboot.
How should I work the docker upgrade and what can I do now?
[root@cd04c5e67a0e /]# netdisco-deploy
This is the Netdisco II deployment script.
Before we continue, the following prerequisites must be in place:
* Database added to PostgreSQL for Netdisco
* User added to PostgreSQL with rights to the Netdisco Database
* "~/environments/deployment.yml" file configured with Database
dsn/user/pass
* A full backup of any existing Netdisco database data
* Internet access (for OUIs and MIBs)
You will be asked to confirm all changes to your system.
So, is all the above in place? [Y/n]: y
Would you like to deploy the database schema? [Y/n]: y
DB schema update complete.
Statistics updated.
Download and update vendor MAC prefixes (OUI data)? [Y/n]: y
OUI update complete.
Download and update MIB files? [Y/n]: y
MIBs update complete.
[root@cd04c5e67a0e /]# netdisco-web restart
config watcher: watching /netdisco/environments for updates.
Netdisco Web [Started]
[root@cd04c5e67a0e /]#
[root@cd04c5e67a0e /]# netdisco-backend restart
config watcher: watching /netdisco/environments for updates.
Netdisco Backend [Started]
[root@cd04c5e67a0e /]#
Thanks.
--
------------------------------------------------
Josep Manel Andrés Moscardó
System Administrator
IMIM-Hospital del Mar Research Institut
--- End Message ---
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