ferhui commented on a change in pull request #3861:
URL: https://github.com/apache/hadoop/pull/3861#discussion_r811525503
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DirectoryScanner.java
##########
@@ -540,21 +541,30 @@ private void scan() {
m++;
continue;
}
- // Block file and/or metadata file exists on the disk
- // Block exists in memory
- if (info.getBlockFile() == null) {
- // Block metadata file exits and block file is missing
- addDifference(diffRecord, statsRecord, info);
- } else if (info.getGenStamp() != memBlock.getGenerationStamp()
- || info.getBlockLength() != memBlock.getNumBytes()) {
- // Block metadata file is missing or has wrong generation stamp,
- // or block file length is different than expected
+
+ // Block and meta must be regular file
+ boolean isRegular = FileUtil.isRegularFile(info.getBlockFile(), false)
&&
Review comment:
Thanks for your explanation.
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