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在CentOS上配置HBase的高可用性(HA)主要涉及以下几个步骤:
1. 安装HBase
首先,确保你已经安装了HBase。你可以从Apache HBase官方网站下载并按照安装指南进行安装。
2. 配置HBase集群
HBase的高可用性依赖于ZooKeeper。你需要配置多个ZooKeeper实例来提供高可用性。
2.1 安装ZooKeeper
你可以使用HBase自带的ZooKeeper,或者单独安装ZooKeeper。
# 下载ZooKeeper
wget https://archive.apache.org/dist/zookeeper/zookeeper-3.7.0/apache-zookeeper-3.7.0-bin.tar.gz
# 解压
tar -xzf apache-zookeeper-3.7.0-bin.tar.gz
# 移动到合适的位置
mv apache-zookeeper-3.7.0-bin /opt/zookeeper
# 创建数据目录
mkdir -p /var/lib/zookeeper/data
# 配置ZooKeeper
cp /opt/zookeeper/conf/zoo_sample.cfg /opt/zookeeper/conf/zoo.cfg
编辑/opt/zookeeper/conf/zoo.cfg文件,添加以下内容:
tickTime=2000
dataDir=/var/lib/zookeeper/data
clientPort=2181
initLimit=5
syncLimit=2
server.1=zoo1:2888:3888
server.2=zoo2:2888:3888
server.3=zoo3:2888:3888
在/var/lib/zookeeper/data目录下创建myid文件,并写入服务器ID:
echo "1" > /var/lib/zookeeper/data/myid # 在zoo1服务器上
echo "2" > /var/lib/zookeeper/data/myid # 在zoo2服务器上
echo "3" > /var/lib/zookeeper/data/myid # 在zoo3服务器上
启动ZooKeeper:
/opt/zookeeper/bin/zkServer.sh start
2.2 配置HBase
编辑HBase的配置文件/opt/hbase/conf/hbase-site.xml,添加以下内容:
<configuration>
<property>
<name>hbase.rootdirname>
<value>hdfs://namenode:8020/hbasevalue>
property>
<property>
<name>hbase.cluster.distributedname>
<value>truevalue>
property>
<property>
<name>hbase.zookeeper.quorumname>
<value>zoo1,zoo2,zoo3value>
property>
<property>
<name>hbase.zookeeper.property.clientPortname>
<value>2181value>
property>
<property>
<name>hbase.master.info.portname>
<value>16000value>
property>
<property>
<name>hbase.regionserver.info.portname>
<value>16020value>
property>
<property>
<name>hbase.ipc.server.listen.addressname>
<value>0.0.0.0value>
property>
<property>
<name>hbase.regionserver.handler.countname>
<value>100value>
property>
<property>
<name>hbase.regionserver.wal.codecname>
<value>org.apache.hadoop.hbase.regionserver.wal.IndexedWALEditCodecvalue>
property>
<property>
<name>hbase.regionserver.hlog.blocksizename>
<value>64Mvalue>
property>
<property>
<name>hbase.regionserver.hlog.writer.implname>
<value>org.apache.hadoop.hbase.regionserver.wal.HLogWriterFactoryvalue>
property>
<property>
<name>hbase.regionserver.hlog.syncer.countname>
<value>1value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.implname>
<value>org.apache.hadoop.hbase.regionserver.wal.HLogSyncervalue>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxopname>
<value>10000value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minopname>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.sleeptimename>
<value>100value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.maxsizename>
<value>1073741824value>
property>
<property>
<name>hbase.regionserver.hlog.syncer.minsizename>
<value>1048576value>
property>
<property>
<name>hbase.regionserver.hlog.syncer
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