No uptime monitors found after upgrading to 8.8.2

Elastic Stack Kibana
1

Recently upgraded from Elasticsearch 7.16.2 to 8.8.2 and Uptime now shows "No uptime monitors found" for Monitors. I ran the setup for heartbeat once I upgraded it to 8.8.2 and the index template & data stream got created. I am able to see the new heartbeat indexes in Index Management with docs and several hundred MB of data and am able to query the data in Discover. As a troubleshooting step, I stopped heartbeat, removed all the old heartbeat 7 indexes/streams/templates and all the new heartbeat 8 indexes/streams/templates, re-ran the setup, and re-started heartbeat. This successfully re-created the template & stream, but still no monitors show up.

We are utilizing Logstash on a remote host, so I also tried to load the index template manually by performing the following:

Export the index template (from the heartbeat server):

./heartbeat export template > heartbeat.template.json

Installed the template (from the coordinating server):

curl -XPUT -H 'Content-Type: application/json' http://localhost:9200/_index_template/heartbeat-8.8.2 -d@heartbeat.template.json

Loaded the data stream (from the coordinating server):

curl -XPUT http://localhost:9200/_data_stream/heartbeat-8.8.2

Still no monitors showing up. The monitors were showing up fine prior to upgrading to 8.8.2.

I am on CentOS 7 and the heartbeat.yml is as follows:

path.home: /apps/heartbeat/heartbeat-8.8.2
path.config: ${path.home}/config

heartbeat.config.monitors:
  path: ${path.home}/monitors.d/*.yml
  reload.enabled: true
  reload.period: 60s

setup.template.settings:
  template.fields: "${path.config}/fields.yml"
  index.number_of_shards: 1
  index.number_of_replicas: 2
  index.codec: best_compression

output.redis:
  hosts:		["logstash01:6379"]
  key: heartbeat
  datatype: list

logging.level:		info
logging.selectors:	["*"]
logging.json:		true

logging.files:
  path: ${HEARTBEAT_HOME}/logs
  name: heartbeat.log
  keepfiles: 7

http.enabled: true

Any help would be appreciated!

Thanks.

2

Could you provide full screen screenshots of both (Discover & Uptime), with exact the same time window?

Could you also confirm settings are pointing to your hearbeat indices?

image
image1257×840 78.9 KB

3

@chouben...thanks so much for taking the time to respond.

I believe I determined what the problem was. Since we are sending to Logstash, I had to update the index name in the Logstash heartbeat.cfg file

from

index => "heartbeat-%{[@metadata][version]}-%{+YYYY.MM.dd}"

to

index => "heartbeat-%{[@metadata][version]}"

Once I did this and restarted Logstash, my monitors were showing up.

4

If settings allow this pattern, you should be fine too!

PS: Don't forget to mark a thread as resolved, once it's done :wink:

5

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