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HDFS-13192. Change the code order in getFileEncryptionInfo to avoid unnecessary call of assignment. Contributed by LiXin Ge.

This commit is contained in:
Inigo Goiri 2018-02-27 08:53:00 -08:00
parent 225d877092
commit cd4a97bf80
2 changed files with 37 additions and 4 deletions
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8
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirEncryptionZoneOp.java
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@ -456,17 +456,17 @@ final class FSDirEncryptionZoneOp {
}
}
final CryptoProtocolVersion version = encryptionZone.getVersion();
final CipherSuite suite = encryptionZone.getSuite();
final String keyName = encryptionZone.getKeyName();
XAttr fileXAttr = FSDirXAttrOp.unprotectedGetXAttrByPrefixedName(
iip, CRYPTO_XATTR_FILE_ENCRYPTION_INFO);
if (fileXAttr == null) {
NameNode.LOG.warn("Could not find encryption XAttr for file " +
iip.getPath() + " in encryption zone " + encryptionZone.getPath());
return null;
}
final CryptoProtocolVersion version = encryptionZone.getVersion();
final CipherSuite suite = encryptionZone.getSuite();
final String keyName = encryptionZone.getKeyName();
try {
HdfsProtos.PerFileEncryptionInfoProto fileProto =
HdfsProtos.PerFileEncryptionInfoProto.parseFrom(

33
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestEncryptionZones.java
View File

@ -1418,6 +1418,39 @@ public class TestEncryptionZones {
dfsAdmin.getEncryptionZoneForPath(snap3Zone).getPath().toString());
}
/**
* Test correctness of encryption zones on a existing snapshot path.
* Specifically, test the file in encryption zones with no encryption info
*/
@Test
public void testSnapshotWithFile() throws Exception {
final int len = 8196;
final Path zoneParent = new Path("/zones");
final Path zone = new Path(zoneParent, "zone");
final Path zoneFile = new Path(zone, "zoneFile");
fsWrapper.mkdir(zone, FsPermission.getDirDefault(), true);
DFSTestUtil.createFile(fs, zoneFile, len, (short) 1, 0xFEED);
String contents = DFSTestUtil.readFile(fs, zoneFile);
// Create the snapshot which contains the file
dfsAdmin.allowSnapshot(zoneParent);
final Path snap1 = fs.createSnapshot(zoneParent, "snap1");
// Now delete the file and create encryption zone
fsWrapper.delete(zoneFile, false);
dfsAdmin.createEncryptionZone(zone, TEST_KEY, NO_TRASH);
assertEquals("Got unexpected ez path", zone.toString(),
dfsAdmin.getEncryptionZoneForPath(zone).getPath());
// The file in snapshot shouldn't have any encryption info
final Path snapshottedZoneFile = new Path(
snap1 + "/" + zone.getName() + "/" + zoneFile.getName());
FileEncryptionInfo feInfo = getFileEncryptionInfo(snapshottedZoneFile);
assertNull("Expected null ez info", feInfo);
assertEquals("Contents of snapshotted file have changed unexpectedly",
contents, DFSTestUtil.readFile(fs, snapshottedZoneFile));
}
/**
* Verify symlinks can be created in encryption zones and that
* they function properly when the target is in the same