Rohith Sharma K S created HDFS-13242:
----------------------------------------

             Summary: HMaster start fails with IllegalStateException when 
HADOOP_HOME is set
                 Key: HDFS-13242
                 URL: https://issues.apache.org/jira/browse/HDFS-13242
             Project: Hadoop HDFS
          Issue Type: Bug
         Environment: HBase-2.0-beta1.

Hadoop trunk version.

java version "1.8.0_144"
            Reporter: Rohith Sharma K S


It is observed that HMaster start is failed when HADOOP_HOME is set as env 
while starting HMaster. HADOOP_HOME is pointing to Hadoop trunk version.

{noformat}
2018-03-07 16:59:52,654 ERROR [master//10.200.4.200:16000] master.HMaster: 
Failed to become active master
java.lang.IllegalStateException: The procedure WAL relies on the ability to 
hsync for proper operation during component failures, but the underlying 
filesystem does not support doing so. Please check the config value of 
'hbase.procedure.store.wal.use.hsync' to set the desired level of robustness 
and ensure the config value of 'hbase.wal.dir' points to a FileSystem mount 
that can provide it.
    at 
org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore.rollWriter(WALProcedureStore.java:1036)
    at 
org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore.recoverLease(WALProcedureStore.java:374)
    at 
org.apache.hadoop.hbase.procedure2.ProcedureExecutor.start(ProcedureExecutor.java:532)
    at 
org.apache.hadoop.hbase.master.HMaster.startProcedureExecutor(HMaster.java:1232)
    at 
org.apache.hadoop.hbase.master.HMaster.startServiceThreads(HMaster.java:1145)
    at 
org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:837)
    at 
org.apache.hadoop.hbase.master.HMaster.startActiveMasterManager(HMaster.java:2026)
    at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:547)
    at java.lang.Thread.run(Thread.java:748)
{noformat}

The same configs is working in HBase-1.2.6 build properly. 



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