li-leyang commented on a change in pull request #4100:
URL: https://github.com/apache/hadoop/pull/4100#discussion_r833665038
##########
File path:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/KeyProviderCache.java
##########
@@ -85,6 +90,26 @@ public KeyProvider call() throws Exception {
}
}
+ public static final int SHUTDOWN_HOOK_PRIORITY =
FileSystem.SHUTDOWN_HOOK_PRIORITY - 1;
+
+ private class KeyProviderCacheFinalizer implements Runnable {
+ @Override
+ public synchronized void run() {
+ invalidateCache();
+ }
+ }
+
+ /**
+ * Invalidate cache and auto close KeyProviders in the cache
+ */
+ @VisibleForTesting
+ synchronized void invalidateCache() {
+ LOG.debug("Invalidating all cached KeyProviders in ShutdownHookManager.");
Review comment:
fixed
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