How to use
isRollingUpgrade
method
in
org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol

Best Java code snippets using org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol.isRollingUpgrade (Showing top 3 results out of 315)

Common ways to obtain NamenodeProtocol

private void myMethod () {
 NamenodeProtocol n =PB.NamenodeProtocolPB rpcProxy;new NamenodeProtocolTranslatorPB(rpcProxy)
Object implementation;Map methodNameToPolicyMap;(NamenodeProtocol) RetryProxy.create(NamenodeProtocol.class, implementation, methodNameToPolicyMap)
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}

@Override
public IsRollingUpgradeResponseProto isRollingUpgrade(
  RpcController controller, IsRollingUpgradeRequestProto request)
  throws ServiceException {
 boolean isRollingUpgrade;
 try {
  isRollingUpgrade = impl.isRollingUpgrade();
 } catch (IOException e) {
  throw new ServiceException(e);
 }
 return IsRollingUpgradeResponseProto.newBuilder()
   .setIsRollingUpgrade(isRollingUpgrade).build();
}

if (!namenode.isRollingUpgrade()) {
 dstImage.updateStorageVersion();

if (!backupNode.namenode.isRollingUpgrade()) {
 bnImage.updateStorageVersion();

Javadoc

return whether the Namenode is rolling upgrade in progress (true) or not (false).

Popular methods of NamenodeProtocol

getBlocks
Get a list of blocks belonging to datanode whose total size equals size.
rollEditLog
Closes the current edit log and opens a new one. The call fails if the file system is in SafeMode.
getBlockKeys
Get the current block keys
getEditLogManifest
Return a structure containing details about all edit logs available to be fetched from the NameNode.
versionRequest
Request name-node version and storage information.
endCheckpoint
A request to the active name-node to finalize previously started checkpoint.
errorReport
Report to the active name-node an error occurred on a subordinate node. Depending on the error code
getMostRecentCheckpointTxId
Get the transaction ID of the most recent checkpoint.
getTransactionID
isUpgradeFinalized
registerSubordinateNamenode
Register a subordinate name-node like backup node.
startCheckpoint
A request to the active name-node to start a checkpoint. The name-node should decide whether to admi

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How to use isRollingUpgrademethodin org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol

Best Java code snippets using org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol.isRollingUpgrade (Showing top 3 results out of 315)

How to use
isRollingUpgrade
method
in
org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol