Re: An example of bugs for Hot Standby

>This way we only cancel direct deadlocks.
>
>It doesn't solve general problem of buffer waits, but they may be
>solvable by different mechanism.
>

Following question may be redundant. Just a confirmation.

Deadlock example is catstrophic while it's rather a rare event.
On the other hand, LockBufferForCleanup() can cause another 
problem.
* One idle pin-holder backend can freeze startup process().

This problem is not catstrophic, but it seems a similar problem
which StandbyAcquireAccessExclusiveLock() tries to avoid.

...Is this the problem you call "general problem" above ?


regards,


-- Hiroyuki YAMADA Kokolink Corporation yamada@kokolink.net