---------- Forwarded message ---------- From: yue longguang <yuelongguang@xxxxxxxxx> Date: Tue, Sep 23, 2014 at 5:53 PM Subject: question about client's cluster aware To: ceph-devel@xxxxxxxxxxxxxxx hi,all my question is from my test. let's take a example. object1(4MB)--> pg 0.1 --> osd 1,2,3,p1 when client is writing object1, during the write , osd1 is down. let suppose 2MB is writed. 1. when the connection to osd1 is down, what does client do? ask monitor for new osdmap? or only the pg map? 2. now client gets a newer map , continues the write , the primary osd should be osd2. the rest 2MB is writed out. now what does ceph do to integrate the two part data? and to promise that replicas is enough? 3. where is the code. Be sure to tell me where the code is。 it is a very difficult question. Thanks so much -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
