DevOps SRE Blog

When we get errors related to datasource in weblogic, first thing we do is go to datasource Monitoring -> Testing tab and test datasource. Sometimes, targets might be missing from this tab. During server startup, server tries to load datasource and create connections to database. If there is any underlying issue with database like password change, password expiry, unavailability of database, it doesn’t load the datasource and we see missing targets in testing tab. Some of the errors, we can see are: ####<Apr 21, 2022 3:44:12,251 AM PDT> <Info> <JDBC> <orasoa-test12-w2> <WLS_SOA2> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <d47e58ce-a023-4de2-acb7-24391c8056df-0000000a> <1650537852251> <[severity-value: 64] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-001508> <Destroying data source connection pool TestDS.> ####<A...

  We wanted to monitor Rabbitmq through Wavefront. So, we followed below steps to configure the integration: Install telegraf agent. Enable Rabbitmq management plugin. Configure telegraf agent to use Rabbitmq input plugin. Restart telegraf Even after completing above steps we were not able to see complete data in Wavefront dashboards. We were able to see basic node level data but not able to see queue level data. We checked /var/log/messages where telegraf logs are written and found following messages. Apr 10 03:48:36 test-app1 telegraf: 2022-04-10T10:48:36Z E! [inputs.rabbitmq] Error in plugin: getting “/api/overview” failed: 401 Unauthorized Apr 10 03:48:36 test-app1 telegraf: 2022-04-10T10:48:36Z E! [inputs.rabbitmq] Error in plugin: getting “/api/nodes” failed: 401 Unauthorized Apr 10 03:48:36 test-app1 telegraf: 2022-04-10T10:48:36Z E! [inputs.rabbitmq] Error in plugin: getting “/api/exchanges” failed: 401 Unauthorized Apr 10 03:48:36 test-app1 telegraf: 2022-04-10T10:48:36Z E...