linyiqun commented on a change in pull request #2737:
URL: https://github.com/apache/hadoop/pull/2737#discussion_r601568107
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File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogAsync.java
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@@ -63,6 +68,9 @@
DFS_NAMENODE_EDITS_ASYNC_LOGGING_PENDING_QUEUE_SIZE_DEFAULT);
editPendingQ = new ArrayBlockingQueue<>(editPendingQSize);
+
+ // the thread pool size should be configurable later, and justified with a
rationale
+ logSyncNotifyExecutor = Executors.newFixedThreadPool(10);
Review comment:
I prefer to make this improvement be more configurable to use. Can we
make thread pool size be configurable in this PR? if the pool size is
configured as 0, that means this improvements is disabled.
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