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HDFS-16540. Data locality is lost when DataNode pod restarts in kubernetes (#4170) (#4246)

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Cherry-pick backport of 9ed8d60511
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Michael Stack 2022-05-15 21:32:48 -07:00 committed by GitHub
parent d58f9d438f
commit 1d226874d2
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1 changed files with 3 additions and 2 deletions
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
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@ -1172,6 +1172,7 @@ public void registerDatanode(DatanodeRegistration nodeReg)
DatanodeDescriptor nodeN = host2DatanodeMap.getDatanodeByXferAddr( DatanodeDescriptor nodeN = host2DatanodeMap.getDatanodeByXferAddr(
nodeReg.getIpAddr(), nodeReg.getXferPort()); nodeReg.getIpAddr(), nodeReg.getXferPort());
// Non-change. REMOVE. Number 2
if (nodeN != null && nodeN != nodeS) { if (nodeN != null && nodeN != nodeS) {
NameNode.LOG.info("BLOCK* registerDatanode: " + nodeN); NameNode.LOG.info("BLOCK* registerDatanode: " + nodeN);
// nodeN previously served a different data storage, // nodeN previously served a different data storage,
@ -1200,7 +1201,7 @@ public void registerDatanode(DatanodeRegistration nodeReg)
nodes with its data cleared (or user can just remove the StorageID nodes with its data cleared (or user can just remove the StorageID
value in "VERSION" file under the data directory of the datanode, value in "VERSION" file under the data directory of the datanode,
but this is might not work if VERSION file format has changed but this is might not work if VERSION file format has changed
*/ */
NameNode.stateChangeLog.info("BLOCK* registerDatanode: " + nodeS NameNode.stateChangeLog.info("BLOCK* registerDatanode: " + nodeS
+ " is replaced by " + nodeReg + " with the same storageID " + " is replaced by " + nodeReg + " with the same storageID "
+ nodeReg.getDatanodeUuid()); + nodeReg.getDatanodeUuid());