[GitHub] [carbondata] Indhumathi27 commented on a change in pull request #3566: [CARBONDATA-3492]: Added prepriming in the Index Server Documentation

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Indhumathi27 commented on a change in pull request #3566: [CARBONDATA-3492]: Added prepriming in the Index Server Documentation
URL: https://github.com/apache/carbondata/pull/3566#discussion_r365046175
 
 

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 File path: docs/index-server.md
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 @@ -119,6 +119,16 @@ be written to file.
 The user can set the location for these file by using 'carbon.indexserver.temp.path'. By default
 table path would be used to write the files.
 
+## Prepriming
+The caching of the datamaps in the Index Server will start once the query is fired on the table for
+the first time. All the datamaps will be loaded if a count(*) query is fired and only the required
+will be loaded for any filter query. Unless the query is fired on the table there will be no caching, 
+which reduces the performance of the first time query. To improve the performance of the first time 
+query, cache can be preprimed in the Index Server. During prepriming the datamaps can be loaded in the 
+Index Server during load command before a select query is fired on the table.
 
 Review comment:
   during Load command => i think should be for both Load and Insert into command. Please change

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