[GitHub] [hadoop] ashutoshcipher commented on a diff in pull request #4248: MAPREDUCE-7370. Parallelize MultipleOutputs#close call

[GitBox <gi...@apache.org>]

ashutoshcipher commented on code in PR #4248:
URL: https://github.com/apache/hadoop/pull/4248#discussion_r905654385


##########
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/MultipleOutputs.java:
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@@ -570,8 +570,14 @@ public void setStatus(String status) {
    */
   @SuppressWarnings("unchecked")
   public void close() throws IOException, InterruptedException {
-    for (RecordWriter writer : recordWriters.values()) {
-      writer.close(context);
-    }
+    recordWriters.values().parallelStream().forEach(writer -> {

Review Comment:
   Thanks @cnauroth and @steveloughran for comments. I will make the required changes. Thanks.



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