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@ -31,6 +31,7 @@ Proper funcitonality of Namespaced lookups requires the following extension to b
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## Cache Settings
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The following are settings used by the nodes which service queries when setting namespaces (broker, peon, historical)
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|Property|Description|Default|
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|--------|-----------|-------|
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|`druid.query.extraction.namespace.cache.type`|Specifies the type of caching to be used by the namespaces. May be one of [`offHeap`, `onHeap`]. `offHeap` uses a temporary file for off-heap storage of the namespace (memory mapped files). `onHeap` stores all cache on the heap in standard java map types.|`onHeap`|
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@ -240,6 +241,8 @@ The following are the handling for kafka consumer properties in `druid.query.ren
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|`auto.offset.reset`|Setting to get the entire kafka rename stream. Cannot be overridden|`smallest`|
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## Testing the kafka rename functionality
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To test this setup, you can send key/value pairs to a kafka stream via the following producer console
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To test this setup, you can send key/value pairs to a kafka stream via the following producer console:
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`./bin/kafka-console-producer.sh --property parse.key=true --property key.separator="->" --broker-list localhost:9092 --topic testTopic`
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Renames can then be published as `OLD_VAL->NEW_VAL` followed by newline (enter or return)
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