Hexiaoqiao commented on code in PR #6530:
URL: https://github.com/apache/hadoop/pull/6530#discussion_r2802941951
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java:
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@@ -741,7 +741,18 @@ private void offerService() throws Exception {
if (state == HAServiceState.ACTIVE) {
handleRollingUpgradeStatus(resp);
}
- commandProcessingThread.enqueue(resp.getCommands());
+ DatanodeCommand[] cmds = resp.getCommands();
+ if (cmds != null && cmds.length != 0) {
+ int length = cmds.length;
+ for (int i = length - 1; i >= 0; i--) {
Review Comment:
Addendum: If namenode only seed back Access key, we could process
`KeyUpdateCommand` directly, rather than enter the queue then process it but it
could be blocked by other commands.
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