mirror of https://github.com/apache/druid.git
2f2fe20089
It was found that the namespace/cache/heapSizeInBytes metric that tracks the total heap size in bytes of all lookup caches loaded on a service instance was being under reported. We were not accounting for the memory overhead of the String object, which I've found in testing to be ~40 bytes. While this overhead may be java version dependent, it should not vary much, and accounting for this provides a better estimate. Also fixed some logging, and reading bytes from the JDBI result set a little more efficient by saving hash table lookups. Also added some of the lookup metrics to the default statsD emitter metric whitelist. |
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|---|---|---|
| .. | ||
| aliyun-oss-extensions | ||
| ambari-metrics-emitter | ||
| cassandra-storage | ||
| cloudfiles-extensions | ||
| compressed-bigdecimal | ||
| distinctcount | ||
| dropwizard-emitter | ||
| gce-extensions | ||
| graphite-emitter | ||
| influx-extensions | ||
| influxdb-emitter | ||
| kafka-emitter | ||
| materialized-view-maintenance | ||
| materialized-view-selection | ||
| momentsketch | ||
| moving-average-query | ||
| opentelemetry-emitter | ||
| opentsdb-emitter | ||
| prometheus-emitter | ||
| redis-cache | ||
| sqlserver-metadata-storage | ||
| statsd-emitter | ||
| tdigestsketch | ||
| thrift-extensions | ||
| time-min-max | ||
| virtual-columns | ||
| README.md | ||
README.md
Community Extensions
Please contribute all community extensions in this directory and include a doc of how your extension can be used under docs/development/extensions-contrib/.
Please note that community extensions are maintained by their original contributors and are not packaged with the core Druid distribution. If you'd like to take on maintenance for a community extension, please post on dev@druid.apache.org to let us know!