slfan1989 commented on code in PR #6924:
URL: https://github.com/apache/ozone/pull/6924#discussion_r1676568864
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hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/block/DeletedBlockLogImpl.java:
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@@ -426,6 +426,11 @@ public void onMessage(
DatanodeDetails details = deleteBlockStatus.getDatanodeDetails();
UUID dnId = details.getUuid();
+ UUID dnIdLocal = UUID.fromString(dnId.toString());
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("remoteId = {}, localDnId = {}, remoteDnId == localDnId[{}]",
+ dnId, dnIdLocal, (dnId == dnIdLocal));
Review Comment:
@adoroszlai Thank you very much for your reply! Your comment on object
comparison is correct; I should use the equal method for comparison.
> Is it possible that it can proceed simply because SCM was restarted?
I still have some questions about this issue. Later, I will provide a 7-day
Grafana monitoring report. The problem we're facing is that while SCM allows
deletions, the deletion queue fails to decrease after a period of time.
Restarting SCM temporarily restores normal deletion operations, but then the
deletion queue stops decreasing again. However, since applying this PR,
deletions have been ongoing for 4 days now. So, I might have mistakenly
attributed this PR's effect, but there could be other issues at play.
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