cloud-fan commented on a change in pull request #27665: [SPARK-30623][Core]
Spark external shuffle allow disable of separate event loop group
URL: https://github.com/apache/spark/pull/27665#discussion_r397102478
##########
File path:
common/network-common/src/main/java/org/apache/spark/network/util/TransportConf.java
##########
@@ -339,12 +341,25 @@ public int chunkFetchHandlerThreads() {
return 0;
}
int chunkFetchHandlerThreadsPercent =
- conf.getInt("spark.shuffle.server.chunkFetchHandlerThreadsPercent", 100);
+
Integer.parseInt(conf.get("spark.shuffle.server.chunkFetchHandlerThreadsPercent"));
int threads =
this.serverThreads() > 0 ? this.serverThreads() : 2 *
NettyRuntime.availableProcessors();
return (int) Math.ceil(threads * (chunkFetchHandlerThreadsPercent /
100.0));
}
+ /**
+ * Whether to use a separate EventLoopGroup to process ChunkFetchRequest
messages, it is decided
+ * by the config `spark.shuffle.server.chunkFetchHandlerThreadsPercent` is
set or not.
+ */
+ public boolean separateChunkFetchRequest() {
+ try {
+ conf.get("spark.shuffle.server.chunkFetchHandlerThreadsPercent");
Review comment:
how about
`conf.getInt("spark.shuffle.server.chunkFetchHandlerThreadsPercent", 0) > 0`?
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