aasha commented on a change in pull request #1648:
URL: https://github.com/apache/hive/pull/1648#discussion_r520280447
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File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
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@@ -647,6 +647,9 @@ private static void populateLlapDaemonVarsSet(Set<String>
llapDaemonVarsSetLocal
"Provide the maximum number of partitions of a table that will be
batched together during \n"
+ "repl load. All the partitions in a batch will make a single
metastore call to update the metadata. \n"
+ "The data for these partitions will be copied before copying the
metadata batch. "),
+ REPL_PARALLEL_COPY_TASKS("hive.repl.parallel.copy.tasks",1000,
Review comment:
This is kept configurable so that customer can set it according to their
needs. It will create the threads only if there are that many files to copy in
parallel. And its using the common pool in the method which is shutdown
immediately after the task is complete. Even if multiple threads are created,
those are just worker threads which will shutdown after the tasks are done.
Customer has to set this config based on their memory allocations.
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