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Supported OS
Track the performance of your PowerDNS Recursor and monitor strange or worrisome traffic. This Agent check collects a variety of metrics from your recursors, including those for:
And many more.
The PowerDNS Recursor check is included in the Datadog Agent package, so you don’t need to install anything else on your recursors.
This check collects performance statistics using PowerDNS Recursor’s statistics API. Versions of pdns_recursor before 4.1 do not enable the stats API by default. If you’re running an older version, enable it by adding the following to your recursor config file, for example /etc/powerdns/recursor.conf
:
webserver=yes
api-key=changeme # only available since v4.0
webserver-readonly=yes # default no
#webserver-port=8081 # default 8082
#webserver-address=0.0.0.0 # default 127.0.0.1
If you’re running pdns_recursor 3.x, prepend experimental-
to these option names, for example: experimental-webserver=yes
.
If you’re running pdns_recursor >= 4.1, just set api-key
.
Restart the recursor to enable the statistics API.
To configure this check for an Agent running on a host:
Edit the powerdns_recursor.d/conf.yaml
file, in the conf.d/
folder at the root of your Agent’s configuration directory. See the sample powerdns_recursor.d/conf.yaml for all available configuration options:
init_config:
instances:
## @param host - string - required
## Host running the recursor.
#
- host: 127.0.0.1
## @param port - integer - required
## Recursor web server port.
#
port: 8082
## @param api_key - string - required
## Recursor web server api key.
#
api_key: "<POWERDNS_API_KEY>"
## @param version - integer - required - default: 3
## Version 3 or 4 of PowerDNS Recursor to connect to.
## The PowerDNS Recursor in v4 has a production ready web server that allows for
## statistics gathering. In version 3.x the server was marked as experimental.
##
## As the server was marked as experimental in version 3 many of the metrics have
## changed names and the API structure (paths) have also changed. With these changes
## there has been a need to separate the two concerns. The check now has a key value
## version: which if set to version 4 queries with the correct API path on the
## non-experimental web server.
##
## https://doc.powerdns.com/md/httpapi/api_spec/#url-apiv1serversserver95idstatistics
#
version: 3
Collecting logs is disabled by default in the Datadog Agent, you need to enable it in datadog.yaml
:
logs_enabled: true
Add the dd-agent
user to the systemd-journal
group by running:
usermod -a -G systemd-journal dd-agent
Add this configuration block to your powerdns_recursor.d/conf.yaml
file to start collecting your PowerDNS Recursor Logs:
logs:
- type: journald
source: powerdns
See the sample powerdns_recursor.d/conf.yaml for all available configuration options.
For containerized environments, see the Autodiscovery Integration Templates for guidance on applying the parameters below.
Parameter | Value |
---|---|
<INTEGRATION_NAME> | powerdns_recursor |
<INIT_CONFIG> | blank or {} |
<INSTANCE_CONFIG> | {"host":"%%host%%", "port":8082, "api_key":"<POWERDNS_API_KEY>", "version": 3} |
Collecting logs is disabled by default in the Datadog Agent. To enable it, see Kubernetes Log Collection.
Parameter | Value |
---|---|
<LOG_CONFIG> | {"source": "powerdns"} |
Run the Agent’s status
subcommand and look for powerdns_recursor
under the Checks section.
powerdns.recursor.all_outqueries (gauge) | The number of outgoing udp queries per second Shown as query |
powerdns.recursor.answers0_1 (gauge) | Number of queries per second answered within 1 millisecond Shown as query |
powerdns.recursor.answers100_1000 (gauge) | Number of queries per second answered within 1 second Shown as query |
powerdns.recursor.answers10_100 (gauge) | Number of queries per second answered within 100 milliseconds Shown as query |
powerdns.recursor.answers1_10 (gauge) | Number of queries per second answered within 10 milliseconds Shown as query |
powerdns.recursor.answers_slow (gauge) | Number of queries per second NOT answered within 1 second Shown as query |
powerdns.recursor.auth4_answers0_1 (gauge) | Number of queries per second answered by auth4s within 1 millisecond; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth4_answers100_1000 (gauge) | Number of queries per second answered by auth4s within 1 second; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth4_answers10_100 (gauge) | Number of queries per second answered by auth4s within 100 milliseconds; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth4_answers1_10 (gauge) | Number of queries per second answered by auth4s within 10 milliseconds; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth4_answers_slow (gauge) | Number of queries per second NOT answered by auth4s within 1 second; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth6_answers0_1 (gauge) | Number of queries per second answered by auth6s within 1 millisecond; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth6_answers100_1000 (gauge) | Number of queries per second answered by auth6s within 1 second; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth6_answers10_100 (gauge) | Number of queries per second answered by auth6s within 100 milliseconds; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth6_answers1_10 (gauge) | Number of queries per second answered by auth6s within 10 milliseconds; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.auth6_answers_slow (gauge) | Number of queries per second NOT answered by auth6s within 1 second; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.cache_entries (gauge) | The number of entries in the cache Shown as entry |
powerdns.recursor.cache_hits (gauge) | The number of cache hits per second Shown as hit |
powerdns.recursor.cache_misses (gauge) | The number of cache misses per second Shown as miss |
powerdns.recursor.case_mismatches (gauge) | The number of mismatches in character case per second Shown as error |
powerdns.recursor.chain_resends (gauge) | The number of queries per second chained to existing outstanding query Shown as query |
powerdns.recursor.client_parse_errors (gauge) | The number of unparsable packets per second Shown as error |
powerdns.recursor.concurrent_queries (gauge) | The number of MThreads currently running Shown as query |
powerdns.recursor.dlg_only_drops (gauge) | The number of records dropped per second because of 'delegation only' setting; Available since pdns_recursor v4.x Shown as record |
powerdns.recursor.dnssec_queries (gauge) | The number of queries received per second with the DO bit set; Available since pdns_recursor v4.x Shown as record |
powerdns.recursor.dnssec_result_bogus (gauge) | The number of DNSSEC validations per second that had the Bogus state; Available since pdns_recursor v4.x |
powerdns.recursor.dnssec_result_indeterminate (gauge) | The number of DNSSEC validations per second that had the Indeterminate state; Available since pdns_recursor v4.x |
powerdns.recursor.dnssec_result_insecure (gauge) | The number of DNSSEC validations per second that had the Insecure state; Available since pdns_recursor v4.x |
powerdns.recursor.dnssec_result_nta (gauge) | The number of DNSSEC validations per second that had the NTA (negative trust anchor) state; Available since pdns_recursor v4.x |
powerdns.recursor.dnssec_result_secure (gauge) | The number of DNSSEC validations per second that had the Secure state; Available since pdns_recursor v4.x |
powerdns.recursor.dnssec_validations (gauge) | The number of DNSSEC validations performed per second; Available since pdns_recursor v4.x |
powerdns.recursor.dont_outqueries (gauge) | The number of outgoing queries dropped per second because of 'dont query' setting Shown as query |
powerdns.recursor.edns_ping_matches (gauge) | The number of servers per second that sent a valid EDNS PING response; Available since pdns_recursor v4.x Shown as host |
powerdns.recursor.edns_ping_mismatches (gauge) | The number of servers per second that sent an invalid EDNS PING response; Available since pdns_recursor v4.x Shown as host |
powerdns.recursor.failed_host_entries (gauge) | The number of servers that failed to resolve Shown as host |
powerdns.recursor.ignored_packets (gauge) | The number of non-query packets received per second on server sockets that should only get queries; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.ipv6_outqueries (gauge) | The number of outgoing queries per second over IPv6 |
powerdns.recursor.ipv6_questions (gauge) | The number of end-user-initiated IPv6 UDP queries with the RD bit set Shown as query |
powerdns.recursor.max_mthread_stack (gauge) | The maximum amount of thread stack ever used |
powerdns.recursor.negcache_entries (gauge) | The number of entries in the negative answer cache Shown as entry |
powerdns.recursor.no_error_packets (gauge) | The number of erroneous packets received per second; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.noedns_outqueries (gauge) | The number of queries per second sent without EDNS; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.noerror_answers (gauge) | The number of NOERROR answers per second Shown as operation |
powerdns.recursor.noping_outqueries (gauge) | The number of queries per second sent without EDNS PING; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.nsset_invalidations (gauge) | The number of times per second an nsset was dropped because it no longer worked; Available since pdns_recursor v4.x |
powerdns.recursor.nsspeeds_entries (gauge) | The number of entries in the NS speeds map; Available since pdns_recursor v4.x Shown as entry |
powerdns.recursor.nxdomain_answers (gauge) | The number of NXDOMAIN answers per second Shown as response |
powerdns.recursor.outgoing4_timeouts (gauge) | The number of timeouts per second for outgoing UDP IPv4 queries; Available since pdns_recursor v4.x Shown as timeout |
powerdns.recursor.outgoing6_timeouts (gauge) | The number of timeouts per second for outgoing UDP IPv6 queries; Available since pdns_recursor v4.x Shown as timeout |
powerdns.recursor.outgoing_timeouts (gauge) | The number of outgoing UDP query timeouts per second Shown as timeout |
powerdns.recursor.over_capacity_drops (gauge) | The number of questions per second dropped due to having reached concurrent query limit Shown as query |
powerdns.recursor.packetcache_entries (gauge) | The number of entries in the packet cache Shown as entry |
powerdns.recursor.packetcache_hits (gauge) | The number of packet cache hits per second Shown as hit |
powerdns.recursor.packetcache_misses (gauge) | The number of packet cache misses per second Shown as miss |
powerdns.recursor.policy_drops (gauge) | The number of packets dropped per second because of Lua policy decision Shown as packet |
powerdns.recursor.policy_result_custom (gauge) | The number of packets per second that were sent a custom answer by the RPZ/filter engine; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.policy_result_drop (gauge) | The number of packets per second dropped by the RPZ/filter engine; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.policy_result_noaction (gauge) | The number of packets per second that were not actioned upon by the RPZ/filter engine; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.policy_result_nodata (gauge) | The number of packets per second that were replied to with NODATA by the RPZ/filter engine; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.policy_result_nxdomain (gauge) | The number of packets per second that were replied to with NXDOMAIN by the RPZ/filter engine; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.policy_result_truncate (gauge) | The number of packets per second that were forced to TCP by the RPZ/filter engine; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.qa_latency (gauge) | The average latency in microseconds exponentially weighted over past 'latency-statistic-size' packets Shown as microsecond |
powerdns.recursor.questions (gauge) | The number of user initiated udp queries per second Shown as operation |
powerdns.recursor.real_memory_usage (gauge) | The amount of memory consumed by PowerDNS in bytes; Available since pdns_recursor v4.x Shown as byte |
powerdns.recursor.resource_limits (gauge) | The number of queries per second that could not be performed due to resource limits; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.server_parse_errors (gauge) | The number of server replied packets per second that could not be parsed Shown as error |
powerdns.recursor.servfail_answers (gauge) | The number of SERVFAIL answers per second Shown as response |
powerdns.recursor.spoof_prevents (gauge) | The number of times per second PowerDNS considers itself spoofed and drops data |
powerdns.recursor.sys_msec (gauge) | The number of CPU milliseconds spent in 'system' mode Shown as millisecond |
powerdns.recursor.tcp_client_overflow (gauge) | The number of outgoing queries dropped per second because of 'dont query' setting Shown as query |
powerdns.recursor.tcp_clients (gauge) | The number of active TCP/IP clients per second |
powerdns.recursor.tcp_outqueries (gauge) | The number of outgoing TCP queries per second Shown as operation |
powerdns.recursor.tcp_questions (gauge) | The number of incoming tcp queries per second Shown as operation |
powerdns.recursor.throttle_entries (gauge) | The number of entries in the throttle map Shown as entry |
powerdns.recursor.throttled_out (gauge) | The number of throttled outgoing UDP queries per second Shown as operation |
powerdns.recursor.too_old_drops (gauge) | The number of questions per second that were dropped because they were too old; Available since pdns_recursor v4.x Shown as query |
powerdns.recursor.udp_in_errors (gauge) | The number of packets per second that were received faster than the OS could process them; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.udp_noport_errors (gauge) | The number of UDP packets per second where an ICMP response was received saying the remote port was not listening; Available since pdns_recursor v4.x Shown as packet |
powerdns.recursor.udp_recvbuf_errors (gauge) | The number of errors per second caused in the UDP receive buffer; Available since pdns_recursor v4.x Shown as error |
powerdns.recursor.udp_sndbuf_errors (gauge) | The number of errors per second caused in the UDP send buffer; Available since pdns_recursor v4.x Shown as error |
powerdns.recursor.unauthorized_tcp (gauge) | The number of TCP questions denied per second because of allow-from restrictions Shown as operation |
powerdns.recursor.unauthorized_udp (gauge) | The number of UDP questions denied per second because of allow-from restrictions Shown as operation |
powerdns.recursor.unexpected_packets (gauge) | The number of unexpected answers per second from remote servers Shown as operation |
powerdns.recursor.unreachables (gauge) | The number times per second nameservers were unreachable |
powerdns.recursor.uptime (gauge) | The number of seconds PowerDNS has been running Shown as second |
powerdns.recursor.user_msec (gauge) | The number of CPU milliseconds spent in 'user' mode Shown as millisecond |
The PowerDNS Recursor check does not include any events.
powerdns.recursor.can_connect
Returns CRITICAL
if the Agent check is unable to connect to the monitored Gearman instance. Returns OK
otherwise.
Statuses: ok, critical
Need help? Contact Datadog support.