时间归档 —— 2016年2月

Ceph:pg peering过程分析

Peering:互为副本的三个(此处为设置的副本个数,通常设置为3)pg的元数据达到一致的过程。官方解释如下:
the process of bringing all of the OSDs that store a Placement Group (PG) into agreement about the state of all of the objects (and their metadata) in that PG. Note that agreeing on the state does not mean that they all have the latest contents.
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