snmp_exporter version? You can use tcpdump to show the full HTTP request and response to snmp_exporter. In the body of the response, I would expect to see a message describing what's wrong.
You can also use curl to send a HTTP request to snmp_exporter using the exact set of parameters that you believe that prometheus is sending: curl -v "http://x.x.x.x:9116/snmp?module=GDS-DIAG-MIB&target=10.100.80.202"; Again, the error is probably clear. I note that you're not sending an "auth" parameter, but if you're using the default auth/community it should work I think. On Monday, 13 November 2023 at 01:14:18 UTC+10 Andy White wrote: > Hello, > > Could anyone help this issue regarding SNMP Exporter: *server returned > HTTP status 400 Bad Request* > > > https://www.reddit.com/r/grafana/comments/17s6uvh/snmp_exporter_server_returned_http_status_400_bad/ > > I'm just trying to scrape 2 OIDs using SNMP_Exporter, but something isn't > working as I get an error of: > > server returned HTTP status 400 Bad Request > > > [image: r/grafana - SNMP Exporter - server returned HTTP status 400 Bad > Request] > <https://preview.redd.it/9z1364gwijzb1.png?width=2572&format=png&auto=webp&s=e8883bb7b10367096783e379a83696ec418f1ce7> > > Here is my generator.yml > auths: auth_name: version: 2 # SNMP version to use. Defaults to 2. # 1 > will use GETNEXT, 2 and 3 use GETBULK. # Community string is used with SNMP > v1 and v2. Defaults to "public_v2". community: public modules: module_name: > # The module name. You can have as many modules as you want. walk: # List > of OIDs to walk. Can also be SNMP object names or specific instances. - > sysUpTime # Same as "1.3.6.1.2.1.1.3" - 1.3.6.1.4.1.33762.7.7.2 # back temp > - 1.3.6.1.4.1.33762.7.6.2 # Front of display temp max_repetitions: 25 # How > many objects to request with GET/GETBULK, defaults to 25. # May need to be > reduced for buggy devices. retries: 3 # How many times to retry a failed > request, defaults to 3. timeout: 5s # Timeout for each individual SNMP > request, defaults to 5s. > > I create the snmp.yml > /opt/snmp_exporter/generator# ./generator generate > ts=2023-11-10T15:30:09.608Z caller=net_snmp.go:162 level=info msg="Loading > MIBs" > from=$HOME/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf > > ts=2023-11-10T15:30:11.208Z caller=main.go:122 level=warn msg="NetSNMP > reported parse error(s)" errors=6 ts=2023-11-10T15:30:11.462Z > caller=main.go:53 level=info msg="Generating config for module" > module=module_name ts=2023-11-10T15:30:11.503Z caller=main.go:68 level=info > msg="Generated metrics" module=module_name metrics=3 > ts=2023-11-10T15:30:11.504Z caller=main.go:93 level=info msg="Config > written" file=/opt/snmp_exporter/generator/snmp.yml > > Which looks like this: > # WARNING: This file was auto-generated using snmp_exporter generator, > manual changes will be lost. auths: auth_name: community: public > security_level: noAuthNoPriv auth_protocol: MD5 priv_protocol: DES version: > 2 modules: module_name: get: - 1.3.6.1.2.1.1.3.0 - > 1.3.6.1.4.1.33762.7.6.2.0 - 1.3.6.1.4.1.33762.7.7.2.0 metrics: - name: > sysUpTime oid: 1.3.6.1.2.1.1.3 type: gauge help: The time (in hundredths of > a second) since the network management portion of the system was last > re-initialized. - 1.3.6.1.2.1.1.3 - name: rFrontTemp oid: > 1.3.6.1.4.1.33762.7.6.2 type: gauge help: Front temperature measured by the > sensor on the front of the display. - 1.3.6.1.4.1.33762.7.6.2 - name: > rHumidity oid: 1.3.6.1.4.1.33762.7.7.2 type: gauge help: Relative Humidity > measured by the sensor embedded on the diagnostic board. - > 1.3.6.1.4.1.33762.7.7.2 max_repetitions: 25 retries: 3 timeout: 5s > > Copy my custom mib file GDS-DIAG-MIB.mib to /usr/share/snmp/mibs as it > seem to look there. > > Copy the generated snmp.yml to my snmp_exporter docker volume: > > /var/lib/docker/volumes/snmp-exporter-etc/_data/snmp.yml > > Add to the Prometheus.yml to scrape, I've removed the other bits: > - job_name: 'snmp_dep' static_configs: - targets: - 10.1.80.202 # SNMP > device. # - switch.local # SNMP device. # - tcp://192.168.1.3:1161 # SNMP > device using TCP transport and custom port. metrics_path: /snmp params: > module: [GDS-DIAG-MIB] relabel_configs: - source_labels: [__address__] > target_label: __param_target - source_labels: [__param_target] > target_label: instance - target_label: __address__ replacement: > 10.1.105.16:9116 # The SNMP exporter's real hostname:port. # Global > exporter-level metrics - job_name: 'snmp_exporter' static_configs: - > targets: ['10.1.105.16:9116'] > > Restart Prometheus container. > > > [image: r/grafana - SNMP Exporter - server returned HTTP status 400 Bad > Request] > <https://preview.redd.it/78iq064hjjzb1.png?width=2572&format=png&auto=webp&s=53464389d3313e313bdaa614c89a2b8d66003ca6> > > If I do an SNMP walk from the VM docker is on they work too. > snmpwalk -v2c -c public 10.1.80.202 1.3.6.1.4.1.33762.7.6.2.0 > SNMPv2-SMI::enterprises.33762.7.6.2.0 = INTEGER: 45 > > Docker info > snmp-exporter: image: quay.io/prometheus/snmp-exporter ports: - 9116:9116 > - 116:116/udp volumes: - snmp-exporter-etc:/etc/snmp-exporter/ restart: > always command: --config.file=/etc/snmp-exporter/snmp.yml networks: - > monitoring > > Any help would be most appreciated. > > Thanks > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. 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