steveloughran commented on a change in pull request #3042:
URL: https://github.com/apache/hadoop/pull/3042#discussion_r637533874
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File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
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@@ -4004,12 +4004,14 @@ public void cleanUp() {
* Background action to act on references being removed.
*/
private static class StatisticsDataReferenceCleaner implements Runnable {
+ private static int REF_QUEUE_POLL_TIMEOUT = 100;
Review comment:
that's going to be waking every 100 milliseconds, demanding cpu time etc
etc. If there has to be a timeout, it needs to be something less disruptive,
like 100 seconds.
What would happen if that was the case?
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