surekhasaharan commented on a change in pull request #8708: Update docs to add 
metadataSegment configs
URL: https://github.com/apache/incubator-druid/pull/8708#discussion_r337340018
 
 

 ##########
 File path: docs/configuration/index.md
 ##########
 @@ -1530,6 +1530,8 @@ The Druid SQL server is configured through the following 
properties on the Broke
 |`druid.sql.planner.requireTimeCondition`|Whether to require SQL to have 
filter conditions on __time column so that all generated native queries will 
have user specified intervals. If true, all queries without filter condition on 
__time column will fail|false|
 |`druid.sql.planner.sqlTimeZone`|Sets the default time zone for the server, 
which will affect how time functions and timestamp literals behave. Should be a 
time zone name like "America/Los_Angeles" or offset like "-08:00".|UTC|
 |`druid.sql.planner.serializeComplexValues`|Whether to serialize "complex" 
output values, false will return the class name instead of the serialized 
value.|true|
+|`druid.sql.planner.metadataSegmentCacheEnable`|Whether to keep a cache of 
published segments in broker. If true, broker polls coordinator in background 
to get segments from metadata store and maintains a local cache. If false, 
coordinator's REST API will be invoked when broker needs published segments 
info.|false|
 
 Review comment:
   sure, didn't realize they are alphabetically indexed.

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