My netdata Agent v1.38.0-136-nightly
is configured for Tier 4
But it seems I have overdone it?
grep DBENGINE error.log|grep ERROR
2023-02-23 07:17:02: netdata ERROR : MAIN : DBENGINE on 'mydomain.de': dbengine tier 3 gives aggregation of more than 65535 points of tier 0. Disabling tiers above 3 (errno 17, File exists)
I surelly oversized my config (more than 65535 )
storage tiers = 4
# Tier 0, per second data for a week
dbengine multihost disk space MB = 1100
# Tier 1, per minute data for a month
dbengine tier 1 multihost disk space MB = 1330
# Tier 2, per hour data for a year
dbengine tier 2 multihost disk space MB = 1000
# Tier 3
dbengine tier 3 multihost disk space MB = 1000
should -i simply reduce the space MB to let’s say 500?
Disk space is not relevant for me, there is plenty enough.
Quick answer: stick to the 3 tiers for now, they will be more than adequate. You can increase the storage a bit and you’ll get many years of data stored.
The additional tier should still be working, but you’ll need to manually tune at least the default
dbengine tier 3 update every iterations
Get netdata.conf to see that these are set to 60 by default for every tier, to have a data point per second, minute, hour. A single data point per 60 hours isn’t very useful, but also runs into the following limitation:
Instead of storing packed numbers in it, we store unpacked all the values as a single number 16 bytes long (3x float + 2x uint16). So, the maximum number of points that can be aggregated is 65535 to any tier.