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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/05/27 12:58:21 UTC
[GitHub] [flink] zentol commented on a change in pull request #12360: [FLINK-17970] Increase default value of cluster.io-pool.size from #cores to 4 * #cores
zentol commented on a change in pull request #12360:
URL: https://github.com/apache/flink/pull/12360#discussion_r431096427
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File path: flink-runtime/src/main/java/org/apache/flink/runtime/util/ClusterEntrypointUtils.java
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@@ -70,7 +70,7 @@ private static File deriveFlinkHomeDirectoryFromLibDirectory() {
* @return The legal io-executor pool size.
*/
public static int getPoolSize(Configuration config) {
- final int poolSize = config.getInteger(ClusterOptions.CLUSTER_IO_EXECUTOR_POOL_SIZE, Hardware.getNumberCPUCores());
+ final int poolSize = config.getInteger(ClusterOptions.CLUSTER_IO_EXECUTOR_POOL_SIZE, 4 * Hardware.getNumberCPUCores());
Review comment:
document that it is multiplied?
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