Alex Vinogradovs <AVinogradovs@xxxxxxxxxxxxxxxx> writes:
> The idea is to have say 2 raw devices which would be used as 2 WAL
> segments (round-robin). RO servers will go after the one that's not used
> at a given time with something like xlogdump utility and produce INSERT
> statements to be then executed locally. After that import is done, a
> command will be issued to the WO server to switch to the other segment
> so that the cycle can repeat.
Why would you insist on these being raw devices? Do you enjoy writing
filesystems from scratch?
regards, tom lane
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