IOException:Timedout 300000ms waiting for namespace table to be assigned

删除hdfs 的hbase3目录和zk的hbase节点:重启hbase服务

原因:长时间无法分配namespace表报错

如图查看已经分配的表:只有meta

IOException:Timedout 300000ms waiting for namespace table to be assigned

观察meta表:发现只有一条数据

IOException:Timedout 300000ms waiting for namespace table to be assigned

解决:

如果hbase能启动第一步方案:

执行:hbase hbck -repair

中间出现打印信息

WARN [main] util.HBaseFsck: Could not processregionserver localhost:16020

java.net.ConnectException:Connection refused

ERROR:There is a hole in the region chain between and . You need to create a new.regioninfo and region dir in hdfs to plug the hole.

ERROR:Found inconsistency in table hbase:quota

完成结果如下:

IOException:Timedout 300000ms waiting for namespace table to be assigned

2.出现以下问题:因为之前进行过quota调试留下的表

IOException:Timedout 300000ms waiting for namespace table to be assigned

创建新表t_1发现日志如下:

master.AssignmentManager:Server localhost,16020,1512562711868 returned java.net.ConnectException:Connection refused for t1,,1512565241301.a3a844d2e929a80126dc1e3291716372.

总上发现:应该除了hdfs目录和zk节点外还有其他数据记录hbase的历史;所以如果要重新格式化hbase必须找到那个数据删掉!!

3.执行hbase clean--cleanAll出现以下提示:

ZNode(s) [localhost,16020,1512562711868,server01,16020,1512562711003, server02,16020,1512562712084] of regionserversare not expired. Exiting without cleaning hbase data.

解决:关闭hbase服务即可如下:

IOException:Timedout 300000ms waiting for namespace table to be assigned