On Tue, Feb 05, 2019 at 04:11:55PM +0530, Robert Haas wrote: > ...not about this part. I think the next checkpoint just doesn't start > until the one already in progress completes.
Yes, the requests are communicated from any backends to the checkpointer with shared memory (see ckpt_flags in RequestCheckpoint), and the backend signals the checkpointer to do the work, still it won't do the work until the checkpoint currently running finishes. -- Michael
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