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HDFS-4288. NN accepts incremental BR as IBR in safemode. Contributed by Daryn Sharp. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1433756 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Todd Lipcon 2013-01-16 00:09:59 +00:00
parent 93100304eb
commit 9a9e04d22b
5 changed files with 79 additions and 2 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -417,6 +417,9 @@ Release 2.0.3-alpha - Unreleased
HDFS-1245. Pluggable block id generation. (shv)
HDFS-4288. NN accepts incremental BR as IBR in safemode
(Daryn Sharp via todd)
BREAKDOWN OF HDFS-3077 SUBTASKS
HDFS-3077. Quorum-based protocol for reading and writing edit logs.

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
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@ -62,6 +62,7 @@
import org.apache.hadoop.hdfs.server.namenode.FSClusterStats;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import org.apache.hadoop.hdfs.server.namenode.Namesystem;
import org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics;
import org.apache.hadoop.hdfs.server.protocol.BlockCommand;
import org.apache.hadoop.hdfs.server.protocol.BlocksWithLocations;
import org.apache.hadoop.hdfs.server.protocol.BlocksWithLocations.BlockWithLocations;
@ -1576,7 +1577,10 @@ public void processReport(final DatanodeID nodeID, final String poolId,
}
// Log the block report processing stats from Namenode perspective
NameNode.getNameNodeMetrics().addBlockReport((int) (endTime - startTime));
final NameNodeMetrics metrics = NameNode.getNameNodeMetrics();
if (metrics != null) {
metrics.addBlockReport((int) (endTime - startTime));
}
blockLog.info("BLOCK* processReport: from "
+ nodeID + ", blocks: " + newReport.getNumberOfBlocks()
+ ", processing time: " + (endTime - startTime) + " msecs");

1
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java
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@ -551,6 +551,7 @@ public int getVolumeFailures() {
@Override
public void updateRegInfo(DatanodeID nodeReg) {
super.updateRegInfo(nodeReg);
firstBlockReport = true; // must re-process IBR after re-registration
}
/**

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
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@ -406,7 +406,7 @@ boolean isDatanodeDead(DatanodeDescriptor node) {
}
/** Add a datanode. */
private void addDatanode(final DatanodeDescriptor node) {
void addDatanode(final DatanodeDescriptor node) {
// To keep host2DatanodeMap consistent with datanodeMap,
// remove from host2DatanodeMap the datanodeDescriptor removed
// from datanodeMap before adding node to host2DatanodeMap.

69
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
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@ -34,13 +34,16 @@
import org.apache.hadoop.hdfs.DFSTestUtil;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.protocol.Block;
import org.apache.hadoop.hdfs.protocol.BlockListAsLongs;
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor.BlockTargetPair;
import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
import org.apache.hadoop.net.NetworkTopology;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import static org.mockito.Mockito.*;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
@ -485,4 +488,70 @@ public void testHighestPriReplSrcChosenDespiteMaxReplLimit() throws Exception {
new NumberReplicas(),
UnderReplicatedBlocks.QUEUE_HIGHEST_PRIORITY));
}
@Test
public void testSafeModeIBR() throws Exception {
DatanodeDescriptor node = spy(nodes.get(0));
node.setStorageID("dummy-storage");
node.isAlive = true;
DatanodeRegistration nodeReg =
new DatanodeRegistration(node, null, null, "");
// pretend to be in safemode
doReturn(true).when(fsn).isInStartupSafeMode();
// register new node
bm.getDatanodeManager().registerDatanode(nodeReg);
bm.getDatanodeManager().addDatanode(node); // swap in spy
assertEquals(node, bm.getDatanodeManager().getDatanode(node));
assertTrue(node.isFirstBlockReport());
// send block report, should be processed
reset(node);
bm.processReport(node, "pool", new BlockListAsLongs());
verify(node).receivedBlockReport();
assertFalse(node.isFirstBlockReport());
// send block report again, should NOT be processed
reset(node);
bm.processReport(node, "pool", new BlockListAsLongs());
verify(node, never()).receivedBlockReport();
assertFalse(node.isFirstBlockReport());
// re-register as if node restarted, should update existing node
bm.getDatanodeManager().removeDatanode(node);
reset(node);
bm.getDatanodeManager().registerDatanode(nodeReg);
verify(node).updateRegInfo(nodeReg);
assertTrue(node.isFirstBlockReport()); // ready for report again
// send block report, should be processed after restart
reset(node);
bm.processReport(node, "pool", new BlockListAsLongs());
verify(node).receivedBlockReport();
assertFalse(node.isFirstBlockReport());
}
@Test
public void testSafeModeIBRAfterIncremental() throws Exception {
DatanodeDescriptor node = spy(nodes.get(0));
node.setStorageID("dummy-storage");
node.isAlive = true;
DatanodeRegistration nodeReg =
new DatanodeRegistration(node, null, null, "");
// pretend to be in safemode
doReturn(true).when(fsn).isInStartupSafeMode();
// register new node
bm.getDatanodeManager().registerDatanode(nodeReg);
bm.getDatanodeManager().addDatanode(node); // swap in spy
assertEquals(node, bm.getDatanodeManager().getDatanode(node));
assertTrue(node.isFirstBlockReport());
// send block report while pretending to already have blocks
reset(node);
doReturn(1).when(node).numBlocks();
bm.processReport(node, "pool", new BlockListAsLongs());
verify(node).receivedBlockReport();
assertFalse(node.isFirstBlockReport());
}
}