Add warning when no query is configured

[coignetp]

What does this PR do?

Motivation

QA #10314

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[codecov]

Codecov Report

Merging #10336 (25a74f7) into master (3e7f81b) will decrease coverage by 0.14%.
The diff coverage is 100.00%.

Flag	Coverage Δ
active_directory	100.00% <ø> (ø)
activemq_xml	82.31% <ø> (ø)
aerospike	86.97% <ø> (+0.36%)	⬆️
airflow	90.00% <ø> (ø)
amazon_msk	86.63% <ø> (ø)
ambari	85.75% <ø> (ø)
apache	95.08% <ø> (ø)
aspdotnet	93.87% <ø> (ø)
avi_vantage	91.97% <ø> (ø)
azure_iot_edge	82.01% <ø> (ø)
btrfs	82.91% <ø> (ø)
cacti	83.95% <ø> (ø)
ceph	91.02% <ø> (ø)
cilium	85.84% <ø> (+1.88%)	⬆️
cisco_aci	95.85% <ø> (ø)
citrix_hypervisor	87.50% <ø> (ø)
clickhouse	96.65% <ø> (ø)
cockroachdb	97.18% <ø> (ø)
consul	91.74% <ø> (ø)
coredns	95.74% <ø> (ø)
couch	95.19% <ø> (+0.24%)	⬆️
couchbase	81.45% <ø> (ø)
crio	100.00% <ø> (ø)
datadog_checks_base	88.60% <100.00%> (-0.64%)	⬇️
datadog_checks_dev	79.86% <ø> (ø)
datadog_checks_downloader	80.64% <ø> (ø)
datadog_cluster_agent	97.50% <ø> (ø)
directory	94.87% <ø> (ø)
disk	91.15% <ø> (-0.49%)	⬇️
dns_check	94.00% <ø> (ø)
dotnetclr	100.00% <ø> (ø)
druid	97.70% <ø> (ø)
ecs_fargate	73.60% <ø> (ø)
eks_fargate	94.05% <ø> (ø)
elastic	88.65% <ø> (ø)
envoy	93.90% <ø> (ø)
etcd	93.09% <ø> (ø)
exchange_server	100.00% <ø> (ø)
external_dns	100.00% <ø> (ø)
fluentd	94.77% <ø> (ø)
gearmand	77.27% <ø> (+1.29%)	⬆️
gitlab	89.94% <ø> (ø)
gitlab_runner	91.94% <ø> (ø)
glusterfs	80.09% <ø> (+0.92%)	⬆️
go_expvar	92.49% <ø> (ø)
gunicorn	92.85% <ø> (-0.76%)	⬇️
haproxy	95.08% <ø> (+0.16%)	⬆️
harbor	81.29% <ø> (ø)
hazelcast	92.39% <ø> (ø)
hdfs_datanode	89.30% <ø> (ø)
hdfs_namenode	87.01% <ø> (ø)
http_check	90.37% <ø> (+1.80%)	⬆️
ibm_i	80.05% <ø> (ø)
ibm_mq	89.45% <ø> (-0.17%)	⬇️
ibm_was	97.45% <ø> (ø)
iis	93.01% <ø> (ø)
istio	77.67% <ø> (+0.59%)	⬆️
kafka_consumer	81.65% <ø> (ø)
kube_apiserver_metrics	97.35% <ø> (ø)
kube_controller_manager	96.85% <ø> (ø)
kube_dns	98.85% <ø> (ø)
kube_metrics_server	100.00% <ø> (ø)
kube_proxy	100.00% <ø> (ø)
kube_scheduler	96.20% <ø> (ø)
kubelet	89.61% <ø> (ø)
kubernetes_state	89.67% <ø> (ø)
kyototycoon	85.96% <ø> (ø)
lighttpd	83.64% <ø> (ø)
linkerd	85.14% <ø> (+1.14%)	⬆️
linux_proc_extras	96.22% <ø> (ø)
mapr	82.62% <ø> (ø)
mapreduce	81.77% <ø> (ø)
marathon	83.12% <ø> (ø)
marklogic	95.33% <ø> (ø)
mcache	93.48% <ø> (ø)
mesos_slave	93.63% <ø> (ø)
mongo	94.43% <ø> (+0.28%)	⬆️
mysql	86.48% <ø> (+0.13%)	⬆️
nagios	89.53% <ø> (ø)
network	77.76% <ø> (+1.00%)	⬆️
nginx	94.62% <ø> (+0.86%)	⬆️
nginx_ingress_controller	98.30% <ø> (ø)
openmetrics	97.14% <ø> (ø)
openstack	51.30% <ø> (ø)
openstack_controller	90.74% <ø> (ø)
oracle	93.65% <ø> (+0.52%)	⬆️
pdh_check	97.77% <ø> (ø)
php_fpm	90.04% <ø> (+0.43%)	⬆️
postfix	88.04% <ø> (ø)
postgres	91.69% <ø> (+0.13%)	⬆️
powerdns_recursor	96.65% <ø> (ø)
process	85.07% <ø> (+0.28%)	⬆️
prometheus	94.17% <ø> (ø)
proxysql	98.97% <ø> (ø)
rabbitmq	94.40% <ø> (ø)
redisdb	87.28% <ø> (+0.31%)	⬆️
riak	99.22% <ø> (ø)
riakcs	93.61% <ø> (ø)
sap_hana	91.99% <ø> (ø)
scylla	100.00% <ø> (ø)
snmp	90.56% <ø> (+0.04%)	⬆️
snowflake	93.48% <ø> (ø)
sonarqube	95.69% <ø> (ø)
spark	93.41% <ø> (ø)
sqlserver	84.25% <ø> (ø)
squid	100.00% <ø> (ø)
ssh_check	91.58% <ø> (ø)
statsd	87.36% <ø> (+1.05%)	⬆️
supervisord	92.30% <ø> (ø)
system_core	91.04% <ø> (ø)
system_swap	98.30% <ø> (ø)
tcp_check	88.83% <ø> (ø)
teamcity	80.00% <ø> (ø)
tokumx	58.40% <ø> (?)
twemproxy	78.33% <ø> (ø)
twistlock	80.25% <ø> (ø)
varnish	84.57% <ø> (+0.24%)	⬆️
vault	95.00% <ø> (+0.55%)	⬆️
vertica	92.33% <ø> (ø)
voltdb	96.81% <ø> (ø)
vsphere	89.75% <ø> (+0.05%)	⬆️
win32_event_log	86.03% <ø> (+0.28%)	⬆️
windows_service	95.83% <ø> (ø)
wmi_check	92.91% <ø> (ø)
yarn	89.85% <ø> (ø)
zk	84.96% <ø> (+0.25%)	⬆️

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