Github user lionelcao commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1192#discussion_r131063435
--- Diff: conf/carbon.properties.template ---
@@ -42,6 +42,9 @@ carbon.enableXXHash=true
#carbon.max.level.cache.size=-1
#enable prefetch of data during merge sort while reading data from sort
temp files in data loading
#carbon.merge.sort.prefetch=true
+######## Alter Partition Configuration ########
+#Number of cores to be used while alter partition
--- End diff --
it will be used when take action of multiple segments in parallel. this
configuration will allow user to set the threads according to their hardware.
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