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These are worth pushing into Grafana


Code Block
heap-memory
heap-used: a gauge tracking the amount of heap memory currently being used in bytes.
heap-max: a gauge tracking the maximum amount of heap memory that can be used in bytes.
heap-committed: a gauge tracking the amount of memory that is committed for the JVM to use in bytes.


Code Block
non-heap-memory
non-heap-used: a gauge tracking the amount of non-heap memory currently being used in bytes.
non-heap-max: a gauge tracking the maximum amount of non-heap memory that can be used in bytes.
non-heap-committed: a gauge tracking the amount of non-heap memory that is committed for the JVM to use in bytes.


Code Block
garbage-collection-count: a gauge tracking the number of garbage collections that have ocurred.
garbage-collection-time: a gauge tracking the time spent in garbage collections, measured in milliseconds.
Potential problem with the amount of data in metrics
  • Reference issues

Jira Legacy
serverSystem JIRA
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
maximumIssues20
jqlQuerykey in (core-1353, core-1144, core-1145)
serverId50130123-f232-3df4-bccb-c16e7d83cd3e


  • Concern about out of memory errors
Questions
  • Is node providing metrics (ex running calculations) or just emitting raw data via the metrics port?
Idea: HdrHistogram
  • From Artur via discord "re metrics memory usage: I'm not sure what exactly causes that, but if it's histograms size, using a better reservoir for the metrics, especially one based on HdrHistogram (http://hdrhistogram.github.io/HdrHistogram/), could help"


Action items