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Copy file name to clipboardExpand all lines: docs/configuration/extensions.md
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@@ -101,7 +101,7 @@ All of these community extensions can be downloaded using [pull-deps](../operati
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|druid-momentsketch|Support for approximate quantile queries using the [momentsketch](https://github.com/stanford-futuredata/momentsketch) library|[link](../development/extensions-contrib/momentsketch-quantiles.md)|
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|druid-tdigestsketch|Support for approximate sketch aggregators based on [T-Digest](https://github.com/tdunning/t-digest)|[link](../development/extensions-contrib/tdigestsketch-quantiles.md)|
|prometheus-emitter|Exposes [Druid metrics](../operations/metrics.md) for Prometheus server collection (<https://prometheus.io/>)|[link](../development/extensions-contrib/prometheus.md)|
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|prometheus-emitter|Exposes [Druid metrics](../operations/metrics.md) for [Prometheus](https://prometheus.io/)|[link](../development/extensions-contrib/prometheus.md)|
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|druid-spectator-histogram|Support for efficient approximate percentile queries|[link](../development/extensions-contrib/spectator-histogram.md)|
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|druid-rabbit-indexing-service|Support for creating and managing [RabbitMQ](https://www.rabbitmq.com/) indexing tasks|[link](../development/extensions-contrib/rabbit-stream-ingestion.md)|
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|druid-ranger-security|Support for access control through Apache Ranger.|[link](../development/extensions-contrib/druid-ranger-security.md)|
Copy file name to clipboardExpand all lines: docs/configuration/index.md
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@@ -403,7 +403,7 @@ Metric monitoring is an essential part of Druid operations. The following monito
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|`org.apache.druid.server.metrics.SegmentStatsMonitor`|**EXPERIMENTAL** Reports statistics about segments on Historical services. Available only on Historical services. Not to be used when lazy loading is configured.|
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|`org.apache.druid.server.metrics.QueryCountStatsMonitor`|Reports how many queries have been successful/failed/interrupted.|
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|`org.apache.druid.server.metrics.SubqueryCountStatsMonitor`|Reports how many subqueries have been materialized as rows or bytes and various other statistics related to the subquery execution|
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|`org.apache.druid.server.emitter.HttpEmittingMonitor`|Reports internal metrics of `http` or `parametrized` emitter (see below). Must not be used with another emitter type. See the description of the metrics here: <https://github.com/apache/druid/pull/4973>.|
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|`org.apache.druid.server.emitter.HttpEmittingMonitor`|Reports internal metrics of `http` or `parametrized` emitter (see below). Must not be used with another emitter type. See the description of the metrics here: https://github.com/apache/druid/pull/4973.|
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|`org.apache.druid.server.metrics.TaskCountStatsMonitor`|Reports how many ingestion tasks are currently running/pending/waiting and also the number of successful/failed tasks per emission period.|
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|`org.apache.druid.server.metrics.TaskSlotCountStatsMonitor`|Reports metrics about task slot usage per emission period.|
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|`org.apache.druid.server.metrics.WorkerTaskCountStatsMonitor`|Reports how many ingestion tasks are currently running/pending/waiting, the number of successful/failed tasks, and metrics about task slot usage for the reporting worker, per emission period. Only supported by Middle Manager node types.|
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The following is an example of an Overlord dynamic config:
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<details><summary>Click to view the example</summary>
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<details>
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<summary>Click to view the example</summary>
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```json
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{
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The precedence chain for query context values is as follows:
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hard-coded default value in Druid code <- runtime property not prefixed with `druid.query.default.context`
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<- runtime property prefixed with `druid.query.default.context`<- context parameter in the query
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hard-coded default value in Druid code `<-` runtime property not prefixed with `druid.query.default.context`
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`<-` runtime property prefixed with `druid.query.default.context``<-` context parameter in the query
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Note that not all query context key has a runtime property not prefixed with `druid.query.default.context` that can
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override the hard-coded default value. For example, `maxQueuedBytes` has `druid.broker.http.maxQueuedBytes`
|`name`| String | The name of the column | yes | null |
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|`dataType`| String | The type of the column. Can be any column data type that is available to Druid. Depends on what extensions are loaded. | no | null |
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|`properties`| Map<String, Object> | the column's defined properties. Non properties defined at this time. | no | null |
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|`properties`| Map<String, Object\>| the column's defined properties. Non properties defined at this time. | no | null |
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