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HDFS-14910. Rename Snapshot with Pre Descendants Fail With IllegalArgumentException #1672

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Merged
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Oct 24, 2019
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HDFS-14910. Rename Snapshot with Pre Descendants Fail With IllegalArgumentException #1672

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3 changes: 2 additions & 1 deletion ...ject/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
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Original file line number Diff line number Diff line change
Expand Up @@ -841,7 +841,8 @@ public void cleanSubtree(ReclaimContext reclaimContext, final int snapshotId,
// If the inode has empty diff list and sf is not a
// DirectorySnapshottableFeature, remove the feature to save heap.
if (sf.getDiffs().isEmpty() &&
!(sf instanceof DirectorySnapshottableFeature)) {
!(sf instanceof DirectorySnapshottableFeature) &&
getDirectoryWithSnapshotFeature() != null) {
this.removeFeature(sf);
}
} else {
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