[jira] [Created] (AMBARI-23879) Redo the Manage Journalnodes wizard in the context of federation changes

["Andrii Babiichuk (JIRA)" <ji...@apache.org>]

Andrii Babiichuk created AMBARI-23879:
-----------------------------------------

             Summary: Redo the Manage Journalnodes wizard in the context of federation changes
                 Key: AMBARI-23879
                 URL: https://issues.apache.org/jira/browse/AMBARI-23879
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 2.7.0
            Reporter: Andrii Babiichuk
            Assignee: Andrii Babiichuk
             Fix For: 2.7.0


STR: Deploy a cluster with multiple namespaces via Blueprint
Add JournalNode using the wizard
In the format JN step {code}sudo su cstm-hdfs -l -c 'hdfs namenode -initializeSharedEdits'{code} fails with 

{code}
Re-format filesystem in QJM to [<ip0>:8485, <ip1>:8485, <ip2>:8485] ? (Y or N) y
18/05/09 18:43:02 ERROR namenode.NameNode: Could not initialize shared edits dir
org.apache.hadoop.hdfs.qjournal.client.QuorumException: Could not format one or more JournalNodes. 1 exceptions thrown:
<ip0>:8485: Directory /hadoop/hdfs/journal/ns1 is in an inconsistent state: Can't format the storage directory because the current directory is not empty.
	at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.checkEmptyCurrent(Storage.java:600)
	at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.analyzeStorage(Storage.java:683)
	at org.apache.hadoop.hdfs.qjournal.server.JNStorage.format(JNStorage.java:210)
	at org.apache.hadoop.hdfs.qjournal.server.Journal.format(Journal.java:235)
	at org.apache.hadoop.hdfs.qjournal.server.JournalNodeRpcServer.format(JournalNodeRpcServer.java:181)
	at org.apache.hadoop.hdfs.qjournal.protocolPB.QJournalProtocolServerSideTranslatorPB.format(QJournalProtocolServerSideTranslatorPB.java:148)
	at org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos$QJournalProtocolService$2.callBlockingMethod(QJournalProtocolProtos.java:27399)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
	at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1682)
	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)

	at org.apache.hadoop.hdfs.qjournal.client.QuorumException.create(QuorumException.java:81)
	at org.apache.hadoop.hdfs.qjournal.client.QuorumCall.rethrowException(QuorumCall.java:286)
	at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.format(QuorumJournalManager.java:228)
	at org.apache.hadoop.hdfs.server.namenode.FSEditLog.formatNonFileJournals(FSEditLog.java:426)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.initializeSharedEdits(NameNode.java:1262)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1619)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1710)
18/05/09 18:43:02 INFO util.ExitUtil: Exiting with status 1: ExitException
18/05/09 18:43:02 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at <host0>/<ip0>
************************************************************/
{code}

Solution
Reorganize wizard steps:
- Assign Journalnodes
- Save Namespace
- Add/Remove Journalnodes (no start JN)
- Copy Journalnode directories
- Start Journalnodes
- Start All Services



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