pkumarsinha commented on a change in pull request #1648:
URL: https://github.com/apache/hive/pull/1648#discussion_r520303827
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File path: ql/src/java/org/apache/hadoop/hive/ql/parse/repl/CopyUtils.java
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@@ -82,27 +87,31 @@ public void copyAndVerify(Path destRoot,
List<ReplChangeManager.FileInfo> srcFil
}
FileSystem sourceFs = srcFiles.get(0).getSrcFs();
boolean useRegularCopy = regularCopy(sourceFs, srcFiles);
+ ExecutorService executorService = null;
try {
if (useRegularCopy || readSrcAsFilesList) {
+ executorService = Executors.newFixedThreadPool(maxParallelCopyTask);
Review comment:
IIRC, granularity level of distcp is file and not blocks. How would
using distcp on a big file size give performance improvement over using regular
copy.
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