[HBASE-24299] Configuring HBase to Use HDFS HA

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 2.2.4
• Component/s: conf, hadoop3

Environment

OS: Ubuntu 16.04.6
JDK：1.8
Hadoop：3.1.3 or 3.2.1
Zookeeper：3.6.0
HBase：2.2.4

Hostname	IP	Components
cluster-hadoop-01	172.18.20.3	NameNode、DataNode、ZooKeeper、HMaster、RegionServer
cluster-hadoop-02	172.18.20.4	NameNode、`DataNode、Zookeeper、HMaster-Backup、RegionServer
cluster-hadoop-03	172.18.20.5	DataNode、ZooKeeper、RegionServer

hbase-site.xml：

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<configuration>
<property>
<name>hbase.rootdir</name>
<value>hdfs://hdfscluster/hbase</value>
</property>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>

<property>
<name>hbase.zookeeper.property.clientPort</name>
<value>2181</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>cluster-hadoop-01,cluster-hadoop-02,cluster-hadoop-03</value>
</property>
<property>
<name>hbase.zookeeper.property.dataDir</name>
<value>/data/zookeeper/data</value>
</property>
</configuration>

hdfs-site.xml：

......
<property>
<name>dfs.nameservices</name>
<value>hdfscluster</value>
</property>
.......

• Release Note: https://stackoverflow.com/questions/61556521/hbase-to-use-hdfs-ha/61593638#61593638
• Assignee: Unassigned
• Reporter: 王宇霄
• Created: 01/May/20 12:20
• Updated: 04/May/20 13:52
• Resolved: 04/May/20 13:52

Description

Problem: HMasters fail to start.

Solution: Check for this error in the HMaster log:

2020-05-01 19:30:13,125 ERROR [main] regionserver.HRegionServer: Failed construction RegionServer
java.lang.IllegalArgumentException: java.net.UnknownHostException: hdfscluster
 
 
Hadoop's hdfs-site.xml and core-site.xml files are in your hbase/conf directory