[DRBD-user] About outdated and inconsistent state
tangyuyi at bytedance.com
Tue Jun 5 07:07:48 CEST 2018
Thanks for reply, my situation is we want to backup a git server
repository, is drbd enough?
2018-06-04 14:02 GMT+08:00 digimer <lists at alteeve.ca>:
> On 2018-05-31 10:33 PM, 唐宇奕 wrote:
>> Hello, I wonder when exactly can outdated and inconsistent state of data
>> can happen and how often does that happen? And is there a way to use
>> inconsistent or outdated data after all if the primary node fails?
> The full answer is here;
> The short answer is;
> Outdated means the data is consistent, but old. Using it will mean any
> data written after the disk was disconnected will be lost. This happens
> when a node is cleanly disconnected while another node is still Primary.
> Inconsistent means that the data on the disk had started to sync from an
> UpToDate node, but that the resync has not finished. The data on the disk
> is likely not usable (specifically, it might be a mix of new and old data).
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