Github user jackylk commented on a diff in the pull request:
https://github.com/apache/incubator-carbondata/pull/620#discussion_r105838661
--- Diff:
core/src/main/java/org/apache/carbondata/core/constants/CarbonCommonConstants.java
---
@@ -1149,6 +1149,19 @@
public static final String USE_KETTLE_DEFAULT = "false";
+ /**
+ * Sorts the data in batches and writes the batch data to store with
index file.
+ */
+ public static final String LOAD_USE_BATCH_SORT =
"carbon.load.use.batch.sort";
+
+ public static final String LOAD_USE_BATCH_SORT_DEFAULT = "true";
--- End diff --
Better to make it `false` as of now, and revisit it after checking the
performance and loading and reading.
And please add comment mentioning something like "if fast loading is
favored, set it to true. If fast query performance is favored, set it to false"
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