[AMBARI-22248] HBase default.rootdir config results in deploy failure if value is not overriden

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.6.1
• Component/s: ambari-server
• Assignee: Siddharth Wagle
• Reporter: Siddharth Wagle
• Created: 16/Oct/17 22:15
• Updated: 10/Nov/17 02:18
• Resolved: 09/Nov/17 23:27

Description

The default value for hbase.rootdir is set as below, due to which hbase fails to start with below exception.
hbase.rootdir=hdfs://localhost:8020/apps/hbase/data

2017-10-16 17:23:06,761 FATAL [ctr-e134-1499953498516-228160-01-000003:16000.activeMasterManager] master.HMaster: Unhandled exception. Starting shutdown.
java.net.ConnectException: Call From ctr-e134-1499953498516-228160-01-000003.hwx.site/172.27.63.128 to localhost:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:801)
        at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
        at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1558)
        at org.apache.hadoop.ipc.Client.call(Client.java:1498)
        at org.apache.hadoop.ipc.Client.call(Client.java:1398)
        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233)
        at com.sun.proxy.$Proxy16.setSafeMode(Unknown Source)
        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.setSafeMode(ClientNamenodeProtocolTranslatorPB.java:718)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:291)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:203)
        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:185)
        at com.sun.proxy.$Proxy17.setSafeMode(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:280)
        at com.sun.proxy.$Proxy18.setSafeMode(Unknown Source)
        at org.apache.hadoop.hdfs.DFSClient.setSafeMode(DFSClient.java:2669)
        at org.apache.hadoop.hdfs.DistributedFileSystem.setSafeMode(DistributedFileSystem.java:1359)
        at org.apache.hadoop.hdfs.DistributedFileSystem.setSafeMode(DistributedFileSystem.java:1343)
        at org.apache.hadoop.hbase.util.FSUtils.isInSafeMode(FSUtils.java:555)
        at org.apache.hadoop.hbase.util.FSUtils.waitOnSafeMode(FSUtils.java:1001)
        at org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:455)
        at org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:162)
        at org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:142)

Since Ambari only allows HBase to be deployed along with HDFS through the dependency in common-services definition of HBase, we can set the root directory as a relative path while the hadoop-common code figures out the FS URI on its own.