HBase architecture follows the traditional master slave model where you have a master which takes decisions and one or more slaves which does the real task. In HBase, the master is called HMaster and slaves are called HRegionServers (yes..servers).…
这是第一次出勤部署产品.遇到不可控问题,解决,写个心得.记录一下吧^^ 在排查问题的过程中,学到不少知识. (1)centos系统盘和数据盘分开,装操作系统的人没有将IT的空间分配出来,所以分区,自动挂载 #lvmdiskscan 查看哪些设备成为了物理卷. 检测硬盘和分区中的逻辑巻管理信息 只有/dev/sda*,说明只有一个物理卷,其余的是/dev/ram* fdisk /dev/sdb d n p 1 w 即可删除分区,创建一个新的磁盘. 格式化:mkfs.ext4 /dev/sdb1 查…
Hbase master启动报错: java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMaster at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2893) at org.apache.hadoop.hbase.master.HMasterCommandLin…
Master日志错误:2015-12-02 06:34:32,394 ERROR [main] master.HMasterCommandLine: Master exitingjava.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMasterat org.apache.hadoop.hbase.master.HMaster.constructMaster(…