最近生产环境hbase集群出现停掉集群之后hmaster无法启动现象,master日志报异常:Timedout 300000ms waiting for namespace table to be assigned,导致整个集群起不来. 2016-12-12 18:04:12,243 FATAL [adfnn2:16020.activeMasterManager] master.HMaster: Failed to become active master java.io.IOException
1.错误描述: 出现上述这个错误的原因是我之前已经安装了Cloudera Manager中的CDH,其中添加了所有的服务,当然也包含HBase.然后重新安装的时候,就会出现如下错误: Failed to become active master,org.apache.hadoop.hbase.TableExistsException:hbase:namespace. 根据上面错误的我们可以很清楚的知道,在启动Hbase的时候,由于之前安装的HBase版本的数据还存在,因此重新安装的HBase会报
1.安装 RHEL/CentOS/Oracle 5 Navigate to this link and save the file in the /etc/yum.repos.d/ directory. RHEL/CentOS/Oracle 6 Navigate to this link and save the file in the /etc/yum.repos.d/ directory. RHEL/CentOS/Oracle 7 Navigate to this link and