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HDFS-14977. Quota Usage and Content summary are not same in Truncate with Snapshot. Contributed by hemanthboyina.

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This commit is contained in:
Inigo Goiri 2020-03-04 10:13:23 -08:00
parent 1d4d0fcbe1
commit 3afd4cbe89
2 changed files with 46 additions and 3 deletions
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13
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/FileWithSnapshotFeature.java
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@ -17,6 +17,8 @@
*/
package org.apache.hadoop.hdfs.server.namenode.snapshot;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.hadoop.classification.InterfaceAudience;
@ -154,9 +156,14 @@ public void updateQuotaAndCollectBlocks(INode.ReclaimContext reclaimContext,
QuotaCounts oldCounts;
if (removed.snapshotINode != null) {
oldCounts = new QuotaCounts.Builder().build();
BlockInfo[] blocks = file.getBlocks() == null ? new
BlockInfo[0] : file.getBlocks();
for (BlockInfo b: blocks) {
List<BlockInfo> allBlocks = new ArrayList<BlockInfo>();
if (file.getBlocks() != null) {
allBlocks.addAll(Arrays.asList(file.getBlocks()));
}
if (removed.getBlocks() != null) {
allBlocks.addAll(Arrays.asList(removed.getBlocks()));
}
for (BlockInfo b: allBlocks) {
short replication = b.getReplication();
long blockSize = b.isComplete() ? b.getNumBytes() : file
.getPreferredBlockSize();

36
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFileTruncate.java
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@ -1283,4 +1283,40 @@ private void truncateAndRestartDN(Path p, int dn, int newLength)
cluster.waitActive();
}
}
/**
* QuotaUsage in Truncate with Snapshot.
*/
@Test
public void testQuotaOnTruncateWithSnapshot() throws Exception {
Path root = new Path("/");
Path dirPath = new Path(root, "dir");
assertTrue(fs.mkdirs(dirPath));
Path filePath = new Path(dirPath, "file");
DFSTestUtil.createFile(fs, filePath, 10, (short) 3, 0);
// verify quotausage and content summary after creating snapshot
fs.allowSnapshot(dirPath);
fs.createSnapshot(dirPath, "s1");
assertEquals(fs.getContentSummary(root).getSpaceConsumed(),
fs.getQuotaUsage(root).getSpaceConsumed());
// truncating the file size to 5bytes
boolean blockrecovery = fs.truncate(filePath, 5);
if (!blockrecovery) {
checkBlockRecovery(filePath, fs, 300, 100L);
}
// verify quotausage and content summary after truncating file which exists
// in snapshot
assertEquals(fs.getContentSummary(root).getSpaceConsumed(),
fs.getQuotaUsage(root).getSpaceConsumed());
// verify quotausage and content summary after deleting snapshot
// now the quota of the file shouldn't present in quotausage and content
// summary
fs.deleteSnapshot(dirPath, "s1");
assertEquals(fs.getContentSummary(root).getSpaceConsumed(),
fs.getQuotaUsage(root).getSpaceConsumed());
}
}