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HDFS-14720. DataNode shouldn't report block as bad block if the block length is Long.MAX_VALUE. Contributed by hemanthboyina.

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This commit is contained in:
Surendra Singh Lilhore 2019-11-09 22:14:35 +05:30
parent 3d249301f4
commit 320008bb7c
1 changed files with 11 additions and 4 deletions
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15
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/ReplicationWork.java
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@ -17,6 +17,7 @@
*/
package org.apache.hadoop.hdfs.server.blockmanagement;
import org.apache.hadoop.hdfs.server.protocol.BlockCommand;
import org.apache.hadoop.net.Node;
import java.util.List;
@ -42,10 +43,16 @@ void chooseTargets(BlockPlacementPolicy blockplacement,
assert getSrcNodes().length > 0
: "At least 1 source node should have been selected";
try {
DatanodeStorageInfo[] chosenTargets = blockplacement.chooseTarget(
getSrcPath(), getAdditionalReplRequired(), getSrcNodes()[0],
getLiveReplicaStorages(), false, excludedNodes, getBlockSize(),
storagePolicySuite.getPolicy(getStoragePolicyID()), null);
DatanodeStorageInfo[] chosenTargets = null;
// HDFS-14720 If the block is deleted, the block size will become
// BlockCommand.NO_ACK (LONG.MAX_VALUE) . This kind of block we don't need
// to send for replication or reconstruction
if (getBlock().getNumBytes() != BlockCommand.NO_ACK) {
chosenTargets = blockplacement.chooseTarget(getSrcPath(),
getAdditionalReplRequired(), getSrcNodes()[0],
getLiveReplicaStorages(), false, excludedNodes, getBlockSize(),
storagePolicySuite.getPolicy(getStoragePolicyID()), null);
}
setTargets(chosenTargets);
} finally {
getSrcNodes()[0].decrementPendingReplicationWithoutTargets();