From e65d8fb3491b328f61ec3b24b837d0249beec4da Mon Sep 17 00:00:00 2001 From: Mingliang Liu Date: Mon, 6 Mar 2017 16:53:30 -0800 Subject: [PATCH] HADOOP-14048. REDO operation of WASB#AtomicRename should create placeholder blob for destination folder. Contributed by NITIN VERMA --- .../apache/hadoop/fs/azure/NativeAzureFileSystem.java | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeAzureFileSystem.java b/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeAzureFileSystem.java index 0dfefaf196c..b1956a78541 100644 --- a/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeAzureFileSystem.java +++ b/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/NativeAzureFileSystem.java @@ -566,6 +566,16 @@ public class NativeAzureFileSystem extends FileSystem { // Remove the source folder. Don't check explicitly if it exists, // to avoid triggering redo recursively. try { + // Rename the source folder 0-byte root file + // as destination folder 0-byte root file. + FileMetadata srcMetaData = this.getSourceMetadata(); + if (srcMetaData.getBlobMaterialization() == BlobMaterialization.Explicit) { + // We already have a lease. So let's just rename the source blob + // as destination blob under same lease. + fs.getStoreInterface().rename(this.getSrcKey(), this.getDstKey(), false, lease); + } + + // Now we can safely delete the source folder. fs.getStoreInterface().delete(srcKey, lease); } catch (Exception e) { LOG.info("Unable to delete source folder during folder rename redo. "