slfan1989 commented on code in PR #5443:
URL: https://github.com/apache/hadoop/pull/5443#discussion_r1122649160
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hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/AbstractDelegationTokenSecretManager.java:
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@@ -419,31 +427,32 @@ public synchronized void addPersistedDelegationToken(
}
}
- /**
- * Update the current master key
- * This is called once by startThreads before tokenRemoverThread is created,
+ /**
+ * Update the current master key
+ * This is called once by startThreads before tokenRemoverThread is created,
* and only by tokenRemoverThread afterwards.
*/
- private void updateCurrentKey() throws IOException {
+ protected void updateCurrentKey() throws IOException {
LOG.info("Updating the current master key for generating delegation
tokens");
/* Create a new currentKey with an estimated expiry date. */
int newCurrentId;
synchronized (this) {
- newCurrentId = incrementCurrentKeyId();
+ newCurrentId = generateNewKeyId();
Review Comment:
We use an incremental method to generate new keys. For the database, we use
for...update to ensure the increment. For zk, we use the global generator.
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