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HDDS-246. Datanode should throw BlockNotCommittedException for uncommitted blocks to Ozone Client. Contributed by Shashikant Banerjee.

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This commit is contained in:
Mukul Kumar Singh 2018-07-28 22:04:11 +05:30
parent 3d586841ab
commit 6b038f82da
4 changed files with 57 additions and 13 deletions
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1
hadoop-hdds/common/src/main/proto/DatanodeContainerProtocol.proto
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@ -138,6 +138,7 @@ enum Result {
CONTAINER_FILES_CREATE_ERROR = 32;
CONTAINER_CHECKSUM_ERROR = 33;
UNKNOWN_CONTAINER_TYPE = 34;
BLOCK_NOT_COMMITTED = 35;
}
/**

12
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/impl/OpenContainerBlockMap.java
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@ -129,6 +129,18 @@ public void removeFromKeyMap(BlockID blockID) {
-> blocks.removeAndGetSize(blockID.getLocalID()) == 0? null: blocks);
}
/**
* Returns true if the block exists in the map, false otherwise
*
* @param blockID
* @return True, if it exists, false otherwise
*/
public boolean checkIfBlockExists(BlockID blockID) {
KeyDataMap keyDataMap = containers.get(blockID.getContainerID());
return keyDataMap == null ? false :
keyDataMap.get(blockID.getLocalID()) != null;
}
@VisibleForTesting
KeyDataMap getKeyDataMap(long containerId) {
return containers.get(containerId);

12
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java
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@ -91,6 +91,8 @@
.Result.GET_SMALL_FILE_ERROR;
import static org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos
.Result.PUT_SMALL_FILE_ERROR;
import static org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos
.Result.BLOCK_NOT_COMMITTED;
import static org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos
.Stage;
@ -494,10 +496,14 @@ ContainerCommandResponseProto handleGetCommittedBlockLength(
long blockLength;
try {
BlockID blockID = BlockID.getFromProtobuf(
request.getGetCommittedBlockLength().getBlockID());
BlockID blockID = BlockID
.getFromProtobuf(request.getGetCommittedBlockLength().getBlockID());
// Check if it really exists in the openContainerBlockMap
if (openContainerBlockMap.checkIfBlockExists(blockID)) {
String msg = "Block " + blockID + " is not committed yet.";
throw new StorageContainerException(msg, BLOCK_NOT_COMMITTED);
}
blockLength = keyManager.getCommittedBlockLength(kvContainer, blockID);
} catch (StorageContainerException ex) {
return ContainerUtils.logAndReturnError(LOG, ex, request);
} catch (IOException ex) {

45
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/scm/TestCommittedBlockLengthAPI.java
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@ -104,16 +104,6 @@ public void tesGetCommittedBlockLength() throws Exception {
.getWriteChunkRequest(container.getPipeline(), blockID,
data.length);
client.sendCommand(writeChunkRequest);
try {
// since there is neither explicit putKey request made for the block,
// nor the container is closed, GetCommittedBlockLength request
// should fail here.
response = ContainerProtocolCalls
.getCommittedBlockLength(client, blockID, traceID);
Assert.fail("Expected exception not thrown");
} catch (StorageContainerException sce) {
Assert.assertTrue(sce.getMessage().contains("Unable to find the key"));
}
// Now, explicitly make a putKey request for the block.
ContainerProtos.ContainerCommandRequestProto putKeyRequest =
ContainerTestHelper
@ -188,4 +178,39 @@ public void tesGetCommittedBlockLengthForInvalidBlock() throws Exception {
}
xceiverClientManager.releaseClient(client);
}
@Test
public void testGetCommittedBlockLengthForOpenBlock() throws Exception {
String traceID = UUID.randomUUID().toString();
ContainerWithPipeline container = storageContainerLocationClient
.allocateContainer(xceiverClientManager.getType(),
HddsProtos.ReplicationFactor.ONE, containerOwner);
long containerID = container.getContainerInfo().getContainerID();
XceiverClientSpi client = xceiverClientManager
.acquireClient(container.getPipeline(), containerID);
ContainerProtocolCalls
.createContainer(client, containerID, traceID);
BlockID blockID =
ContainerTestHelper.getTestBlockID(containerID);
ContainerProtos.ContainerCommandRequestProto requestProto =
ContainerTestHelper
.getWriteChunkRequest(container.getPipeline(), blockID, 1024);
client.sendCommand(requestProto);
try {
ContainerProtocolCalls.getCommittedBlockLength(client, blockID, traceID);
Assert.fail("Expected Exception not thrown");
} catch (StorageContainerException sce) {
Assert.assertEquals(ContainerProtos.Result.BLOCK_NOT_COMMITTED,
sce.getResult());
}
// now close the container, it should auto commit pending open blocks
ContainerProtocolCalls
.closeContainer(client, containerID, traceID);
ContainerProtos.GetCommittedBlockLengthResponseProto response =
ContainerProtocolCalls
.getCommittedBlockLength(client, blockID, traceID);
Assert.assertTrue(response.getBlockLength() == 1024);
xceiverClientManager.releaseClient(client);
}
}