Thanks for the help. Failed regions is not exposed through JMX, so I just did a small script to download it from hbase master status webpage:
failedRegionsCount=$(curl -s http://127.0.0.1:16010/master-status | hxnormalize -x | hxselect -i '#tab_userTables' | w3m -dump -cols 2000 -T 'text/html' | awk '{print $3" "$4" "$5" "$6" "$7}' | grep -v Details | grep -v Regions | awk '{ sum+=$3} END {print sum}') timestamp=$(date +%s) I thought a quick curl would be easier to setup than a python script. In case that's the root cause of my problem, I'll switch. Then I added the metric in /var/lib/ambari-server/resources/stacks/HDP/2.3/services/HBASE/metrics.json "HBASE_MASTER": { "Component": [ { "type": "ganglia", "metrics": { "default": { "metrics/clic2buy": { "metric": "FailedRegionsCount", "pointInTime": true, "temporal": true }, It appears in http://localhost:8080/api/v1/stacks/HDP/versions/2.6/services/HBASE/artifacts/metrics_descriptor I can also create a widget based on that metric. But I cant send data to it. I used the REST api of the metric collector: curl -vvv -H "Content-Type: application/json" -X POST -d '{"metrics": [{"metricname": "FailedRegionsCount", "appid": "hbase", "hostname": "sandbox.test.com", "timestamp": '"$timestamp"', "starttime": '"$timestamp"', "metrics": {"'"$timestamp"'": '"$failedRegionsCount"'}}]}' "http://127.0.0.1:6188/ws/v1/timeline/metrics"; => HTTP status 200 where sandbox.test.com is the domain of my hbase master. A HTTP GET dont show data either: curl -vvv -H "Content-Type: application/json" -X GET "http://127.0.0.1:6188/ws/v1/timeline/metrics?metricNames=FailedRegionsCount&appId=hbase"; => HTTP status 200 {"metrics":[]} But I can load data from metrics load_one with the same GET request for example. I would say I forgot to initialized something so the metric declared in ambari server would be propaged to ambari metric collector, but I am not sure what it is. In case that's python is required, well let me know. Thanks for the help On 1/11/19 7:53 AM, Jonathan Hurley wrote: > Ambari alerts work natively off of JMX metrics, so if HBase exposes a metric > through JMX then you can consume it. We used to do something similar for > "dead" RegionServers, but it was determined that a "dead" RegionServer was > part of the normal lifecycle and shouldn't have an alert: > > https://github.com/apache/ambari/commit/d1e59133f7f867a16d6cb4c7e5cc8508893a29fe#diff-c6c19e2641a79e05745b9320dfb7a6e1 > > However, if the metric you want isn't exposed by HBase, then you'd have to > write a Python script to do the work for you. > > On 1/10/19, 1:04 AM, "Fabien Carrion" <[email protected]> wrote: > > Hello, > > I need to create an ambari' alert if I have a failed region. > > I didnt see this metric in the widget creator so I was thinking to > create an ambari metrics, and then create an ambari alert on it. > > I would like to know if there is a way to access to this hbase metric > through ganglia or if I need to create a whole new python script to > download the metric. > > As I am new to ambari, I am open to any suggestion. > > Thanks for the help > > -- > Fabien Carrion > > () Campagne du ruban ASCII -- Contre les mails en html > /\ contre les pieces-jointes Microsoft > Web: http://fabien.carrion.free.fr/ > > > -- Fabien Carrion () Campagne du ruban ASCII -- Contre les mails en html /\ contre les pieces-jointes Microsoft Web: http://fabien.carrion.free.fr/ -- Fabien Carrion () Campagne du ruban ASCII -- Contre les mails en html /\ contre les pieces-jointes Microsoft Web: http://fabien.carrion.free.fr/
