[Pdns-users] dnsdist and udp-in-errors

janasowieso Nicht janasowiesonicht at gmail.com
Tue Nov 12 16:15:24 UTC 2024


Hi Remi,

thx for following up,
... of course, please find the output of dumpStats() below,
in our statistics/graphs we couldn't detect anything strange or noticeable,
except the udp inerrors or "udp-in-errors".


thx&br
Georg


# dnsdist -c -e 'dumpStats()'
Passing a plain-text password via the 'password' parameter to
'setWebserverConfig()' is not advised, please consider generating a hashed
one using 'hashPassword()' instead.
Passing a plain-text API key via the 'apiKey' parameter to
'setWebserverConfig()' is not advised, please consider generating a hashed
one using 'hashPassword()' instead.
acl-drops                                   8799160    latency-tcp-avg100
                           1379.9
cache-hits                               1366663002    latency-tcp-avg1000
                            2180.2
cache-misses                              823004376    latency-tcp-avg10000
                           4406.3
cpu-iowait                                   186894
 latency-tcp-avg1000000                          4007.3
cpu-steal                                     27914    latency0-1
                     1802803710
cpu-sys-msec                               40830508    latency1-10
                       147425901
cpu-user-msec                              27246570    latency10-50
                      176743833
doh-query-pipe-full                               0    latency100-1000
                        21024386
doh-response-pipe-full                            0    latency50-100
                         8862472
doh3-response-pipe-full                           0    no-policy
                               0
doq-response-pipe-full                            0    noncompliant-queries
                           6003
downstream-send-errors                            0
 noncompliant-responses                             0
downstream-timeouts                         1141925
 outgoing-doh-query-pipe-full                       0
dyn-block-nmg-size                                0
 proxy-protocol-invalid                             0
dyn-blocked                                       0    queries
                      2190645266
empty-queries                                968023    rdqueries
                      2188970564
fd-usage                                        176    real-memory-usage
                       272089088
frontend-noerror                         1978849465    responses
                      2188525442
frontend-nxdomain                         196610296    rule-drop
                               0
frontend-servfail                          11423098    rule-nxdomain
                               0
latency-avg100                                 2851.7  rule-refused
                              0
latency-avg1000                                5307.4  rule-servfail
                               0
latency-avg10000                               5891.6  rule-truncated
                              0
latency-avg1000000                             5996.3  security-status
                               1
latency-count                            2158600407    self-answered
                               0
latency-doh-avg100                                0.0  servfail-responses
                        2281617
latency-doh-avg1000                               0.0  special-memory-usage
                      258465792
latency-doh-avg10000                              0.0
 tcp-cross-protocol-query-pipe-full                 0
latency-doh-avg1000000                            0.0
 tcp-cross-protocol-response-pipe-full              0
latency-doh3-avg100                               0.0  tcp-listen-overflows
                           1928
latency-doh3-avg1000                              0.0  tcp-query-pipe-full
                               0
latency-doh3-avg10000                             0.0  trunc-failures
                              0
latency-doh3-avg1000000                           0.0  udp-in-csum-errors
                        6981081
latency-doq-avg100                                0.0  udp-in-errors
                         6981092
latency-doq-avg1000                               0.0  udp-noport-errors
                           11090
latency-doq-avg10000                              0.0  udp-recvbuf-errors
                              0
latency-doq-avg1000000                            0.0  udp-sndbuf-errors
                               0
latency-dot-avg100                                0.0  udp6-in-csum-errors
                               0
latency-dot-avg1000                               0.0  udp6-in-errors
                              0
latency-dot-avg10000                              0.0  udp6-noport-errors
                             24
latency-dot-avg1000000                            0.0  udp6-recvbuf-errors
                               0
latency-slow                                1740105    udp6-sndbuf-errors
                              0
latency-sum                             12821225946    uptime
                        1553935

On Tue, Nov 12, 2024 at 9:45 AM Remi Gacogne via Pdns-users <
pdns-users at mailman.powerdns.com> wrote:

> Hello,
>
> On 08/11/2024 13:31, janasowieso Nicht via Pdns-users wrote:
>  > sure, added the content of the configfile below,
>  >
>  > all servers are VMs (openstack), OS is OracleLinux 8 on all servers with
>  > kernel: 4.18.0-553.22.1.el8_10.x86_64
>  > all servers have two SRIOV interfaces in a bond.
>  > dnsdist version is dnsdist-1.9.7-1pdns.el8.x86_64
>
> Thank you for sharing your configuration. It has been redacted quite a
> bit so I'm not 100% sure I'm not missing something, but I don't see
> anything that would explain your issue. Would you mind sharing the
> output of "dumpStats()" executed via the console? I see you are sending
> metrics to a carbon server, is there anything unexpected showing up in
> your graphs? Sudden spikes of queries, high CPU usage, CPU usage spikes,
> etc?
>
> Best regards,
>
> --
> Remi Gacogne
> PowerDNS.COM BV - https://www.powerdns.com/
> _______________________________________________
> Pdns-users mailing list
> Pdns-users at mailman.powerdns.com
> https://mailman.powerdns.com/mailman/listinfo/pdns-users
>
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