Comments (5)
nlighten
commented on August 14, 2024
The current setup kind of assumes that the datasource is defined on server level (in server.xml and/or global context.xml). In that case the datasource should be initialized during the initilization of the metrics war.
Are you defining the datasource in a context.xml inside your application war?
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billylamrealmatter
commented on August 14, 2024
Yes. My dataSource is defined inside the Application level.
…Sent from my iPhone
On Feb 6, 2019, at 6:12 AM, Richard <[email protected]<mailto:[email protected]>> wrote:
The current setup kind of assumes that the datasource is defined on server level (in server.xml and/or global context.xml). In that case the datasource should be initialized during the initilization of the metrics war.
Are you defining the datasource in a context.xml inside your application war?
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nlighten
commented on August 14, 2024
The metrics war initialization is normally done during first scrape by prometheus. At that point the decision is made to initialize TomcatJdbcPoolExports or not (based on the existence of certain datasource mbeans). If this happens before other wars containing an context.xml with a datasource definition are started you will not see the metrics.
One solution I can think of is setting the bindOnInit property or your connector to 'false'. Can you test this?
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billylamrealmatter
commented on August 14, 2024
It works with bindOnInit<https://tomcat.apache.org/tomcat-8.5-doc/config/http.html#Standard_Implementation> set to “false”.
Thanks a lot for your help.
Billy
From: Richard [mailto:[email protected]]
Sent: February-06-19 12:00 PM
To: nlighten/tomcat_exporter <[email protected]>
Cc: Billy Lam <[email protected]>; Author <[email protected]>
Subject: Re: [nlighten/tomcat_exporter] TomcatJdbcPoolExports initialization issue (#17)
The metrics war initialization is normally done during first scrape by prometheus. At that point the decision is made to initialize TomcatJdbcPoolExports or not (based on the existence of certain datasource mbeans). If this happens before other wars containing an context.xml with a datasource definition are started you will not see the metrics.
One solution I can think of is setting the bindOnInit<https://tomcat.apache.org/tomcat-8.5-doc/config/http.html#Standard_Implementation> property or your connector to 'false'. Can you test this?
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nlighten
commented on August 14, 2024
Added note to readme.
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Related Issues (20)
- The metrics application cannot be restarted HOT 4
- Whether it works on Windows server？ HOT 1
- ClassNotFoundException: io.prometheus.client.exporter.MetricsServlet HOT 4
- A dashboard for this exporter? HOT 4
- Criação do contexto da aplicação no monitoramento do Pool de conexões do Datasource HOT 4
- Delayed metrics HOT 3
- Contect deadline exceed (Get https://my_ip/metrics/: context deadline exceeded) HOT 6
- Syntax issue in the output HOT 1
- Getting the ClassCastException exception when added the resource in the context.xml HOT 4
- embed jars? HOT 2
- Caused by: java.lang.ClassNotFoundException: io.prometheus.cloudwatch.WebServer HOT 1
- tomcat_exporter doesn't work HOT 2
- Duplicate registration exception when there are multiple jdbc connections defined in tomcat with latest prometheus library HOT 1
- prometheus 0.12.0 needs simpleclient_servlet_common HOT 2
- Add JMX Exporter features? HOT 3
- Tomcat version < 10 with Prometheus version > 11 not supported HOT 2
- 404 after deploying metrics.war HOT 6
- Can't see the metrics HOT 6
- Is this project still maintained? HOT 2
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