HBase-RegionState
2016-09-05 12:02:34 0 举报AI智能生成
HBase-RegionState是HBase分布式数据库中的一个重要概念，它代表了一个HBase表的特定区域（Region）的当前状态。每个表在HBase中都被划分为多个区域，这些区域分布在各个HBase节点上。RegionState描述了这个区域是否在线、是否正在分裂、是否已经下线等信息。通过监控RegionState，可以了解整个HBase集群的健康状况和性能表现。例如，如果一个区域的RegionState长时间保持在“OFFLINE”状态，可能需要检查该区域的数据是否丢失或者HBase集群是否存在故障。
作者其他创作
大纲/内容
assign
PENDING_OPEN：sent rpc to server to open but has not begun
OFFLINE：region is in an offline state
OPENING：server has begun to open but not yet done
OPEN：server opened region and updated meta
FAILED_OPEN：failed to open, and won't retry any more
split
SPLITTING：server started split of a region
SPLIT：server completed split of a region
SPLITTING_NEW：new region to be created when RS splits a parent region...
unassign
PENDING_CLOSE：sent rpc to server to close but has not begun
CLOSING：server has begun to close but not yet done
CLOSED：server closed region and updated meta
FAILED_CLOSE：failed to close, and won't retry any more
merge
MERGING：server started merge a region
MERGED：server completed merge a region
MERGING_NEW：new region to be created when RS merges two daughter regions but...
0 条评论
下一页
