Grafana Dashboards: Fix Query Errors and Improve Instance Filtering in Erlang Distribution and BEAM Dashboards #12720
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- Updated metric expressions to include instance filtering with {instance=\"$node\"}
for the following metrics:
- erlang_vm_statistics_run_queues_length
- erlang_vm_statistics_dirty_io_run_queue_length
- erlang_vm_statistics_dirty_cpu_run_queue_length
- Added 'DS_PROMETHEUS' as a templated data source variable
- Modified metric expression and legend format in State of distribution links - Changed panel type from 'flant-statusmap-panel' to 'status-history' for Process state
michaelklishin
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Nov 14, 2024
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michaelklishin
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Nov 14, 2024
Grafana Dashboards: Fix Query Errors and Improve Instance Filtering in Erlang Distribution and BEAM Dashboards (backport #12720)
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Proposed Changes
Hi,
During the testing with Grafana 11.3.0 and RabbitMQ 3.13.7, deployed on Kubernetes, we noticed several issues with the Erlang Distribution and Erlang BEAM dashboards.
Erlang Distribution dashboard:
The "State of distribution links" panel on the Erlang Distribution dashboard was failing due to a query error caused by duplicate series in the match group, resulting in many-to-many matching conflicts.
The "Process state" panel was unable to display correctly due to the flant status map being deprecated.
Erlang-BEAM dashboard:
Data was unable to be retrieved due to the missing DS_Prometheus variable, which was not defined as a datasource.
The "Erlang VM Run Queue Length" panel displayed data for all nodes in the cluster rather than filtering to show data only for the selected node.
Changes:
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