slfan1989 commented on code in PR #6924:
URL: https://github.com/apache/ozone/pull/6924#discussion_r1688293974
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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:
Sorry, the response is a bit late. The following image shows our SCM's 7-day
deletion monitoring. From the monitoring data, SCM can delete blocks, but there
are long periods of stalling in between. During this period, numerous
'UnkowDataNode' WARNING alerts are reported.
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