Hi Grigory,
On 4/5/20 8:02 PM, Grigory Smolkin wrote:
Hello, hackers!
I`m investigating a complains from our clients about archive recovery
speed been very slow, and I`ve noticed a really strange and, I think, a
very dangerous recovery behavior.
When running multi-timeline archive recovery, for every requested segno
startup process iterates through every timeline in restore target
timeline history, starting from highest timeline and ending in current,
and tries to fetch the segno in question from this timeline.
<snip>
Is there a reason behind this behavior?
Also I`ve attached a patch, which fixed this issue for me, but I`m not
sure, that chosen approach is sound and didn`t break something.
This sure looks like [1] which has a completed patch nearly ready to
commit. Can you confirm and see if the proposed patch looks good?
--
-David
da...@pgmasters.net
[1]
https://www.postgresql.org/message-id/flat/792ea085-95c4-bca0-ae82-47fdc80e146d%40oss.nttdata.com#800f005e01af6cb3bfcd70c53007a2db
