[GitHub] [hadoop] zhengchenyu commented on a diff in pull request #5099: HDFS-16832. [SBN READ] Fix NPE when check the block location of empty…

[GitBox <gi...@apache.org>]

zhengchenyu commented on code in PR #5099:
URL: https://github.com/apache/hadoop/pull/5099#discussion_r1027023627


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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java:
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@@ -9034,9 +9038,12 @@ private boolean isObserver() {
 
   private void checkBlockLocationsWhenObserver(LocatedBlocks blocks, String src)
       throws ObserverRetryOnActiveException {
-    for (LocatedBlock b : blocks.getLocatedBlocks()) {
-      if (b.getLocations() == null || b.getLocations().length == 0) {
-        throw new ObserverRetryOnActiveException("Zero blocklocations for " + src);
+    List<LocatedBlock> locatedBlockList = blocks.getLocatedBlocks();

Review Comment:
   OK, I have fix it.



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