haiyang1987 commented on code in PR #6597:
URL: https://github.com/apache/hadoop/pull/6597#discussion_r1519563597
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java:
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@@ -4359,9 +4348,15 @@ private void
chooseExcessRedundancyStriped(BlockCollection bc,
}
}
if (candidates.size() > 1) {
+ List<StorageType> internalExcessTypes = storagePolicy.chooseExcess(
+ (short) 1, DatanodeStorageInfo.toStorageTypes(candidates));
+ if (internalExcessTypes.isEmpty()) {
Review Comment:
About internalExcessTypes, could you explain which case will empty ? thanks~
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