sodonnel commented on code in PR #4341:
URL: https://github.com/apache/ozone/pull/4341#discussion_r1126668802
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hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/node/CommandQueue.java:
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@@ -124,6 +127,30 @@ public int getDatanodeCommandCount(
}
}
+ /**
+ * Return a summary of all commands currently queued for the given Datanode.
+ * Note that any commands which return false for their
+ * Command.contributesToQueueSize() method will not be included in the count.
+ * At the current time, only low priority ReplicateContainerCommands meet
this
+ * condition.
+ * @param datanodeUuid Datanode UUID
+ * @return A map containing the command summary. Note the returned map is a
+ * copy of the internal map and can be modified safely by the caller.
+ */
+ public Map<SCMCommandProto.Type, Integer> getDatanodeCommandSummary(
+ final UUID datanodeUuid) {
+ lock.lock();
Review Comment:
I went ahead a made the change, as it was pretty simple. If the worst
happens and we need to revert we can diff the files! But I think it will be OK
- its basically double locked without this change which is just going to hurt
performance.
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