receive buffer full

field name: rcvbuf_errors — what munin.conf and the RRD call it
unit: errors per ${graph_period}
state: OK
thresholds: warning not 0 · no critical
limits: ≥ 0 — values outside this range are stored as UNKNOWN rather than clipped (rrdcreate's DS min/max)
about: A datagram was dropped because the socket buffer was full. The application is not reading fast enough, or its buffer is too small.
data source: localhost/localhost-udp-errors-rcvbuf_errors-d.rrd · DERIVE
graphs: UDP errors · zoom

24-hour profile (daily model, mean ± σ, server-local time — CEST, UTC+02:00) · the second line is the last 24 hours, ending at the marker

the numbers behind this figure — 48 half-hour slots

unit: errors per ${graph_period} · typical is the daily model's mean at that local half-hour, band its mean ∓ σ held inside the field's declared range, n the samples pooled behind it, and last 24 h what the field actually did on the same slot
slot	band	n
00:00	0.00 … 0.00	15
00:30	0.00 … 0.00	15
01:00	0.00 … 0.00	15
01:30	0.00 … 0.00	15
02:00	0.00 … 0.00	15
02:30	0.00 … 0.00	15
03:00	0.00 … 0.00	15
03:30	0.00 … 0.00	15
04:00	0.00 … 0.00	15
04:30	0.00 … 0.00	15
05:00	0.00 … 0.00	15
05:30	0.00 … 0.00	15
06:00	0.00 … 0.00	15
06:30	0.00 … 0.00	15
07:00	0.00 … 0.00	15
07:30	0.00 … 0.00	15
08:00	0.00 … 0.00	15
08:30	0.00 … 0.00	15
09:00	0.00 … 0.00	15
09:30	0.00 … 0.00	15
10:00	0.00 … 0.00	15
10:30	0.00 … 0.00	15
11:00	0.00 … 0.00	15
11:30	0.00 … 0.00	15
12:00	0.00 … 0.00	15
12:30	0.00 … 0.00	15
13:00	0.00 … 0.00	15
13:30	0.00 … 0.00	15
14:00	0.00 … 0.00	15
14:30	0.00 … 0.00	15
15:00	0.00 … 0.00	15
15:30	0.00 … 0.00	15
16:00	0.00 … 0.00	15
16:30	0.00 … 0.00	15
17:00	0.00 … 0.00	15
17:30	0.00 … 0.00	15
18:00	0.00 … 0.00	15
18:30	0.00 … 0.00	15
19:00	0.00 … 0.00	16
19:30	0.00 … 0.00	17
20:00	0.00 … 0.00	18
20:30	0.00 … 0.00	17
21:00	0.00 … 0.00	16
21:30	0.00 … 0.00	14
22:00	0.00 … 0.00	15
22:30	0.00 … 0.00	15
23:00	0.00 … 0.00	15
23:30	0.00 … 0.00	15

hour × weekday (weekly model mean, server-local time — CEST, UTC+02:00)

the numbers behind this figure — 7 weekdays × 12 buckets

unit: errors per ${graph_period} · each cell is the weekly model's mean over that local bucket, with n the samples pooled behind it — the same value and pool the coloured cell above carries
day	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00
Mon	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12
Tue	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=11	0.00 n=10
Wed	0.00 n=9	0.00 n=8	0.00 n=7	0.00 n=6	0.00 n=6	0.00 n=6	0.00 n=6	0.00 n=6	0.00 n=7	0.00 n=8	0.00 n=9	0.00 n=9
Thu	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=9	0.00 n=10	0.00 n=11	0.00 n=12
Fri	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12
Sat	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12
Sun	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=12	0.00 n=11	0.00 n=12