On Mon, Mar 14, 2022 at 03:54:19PM +0530, Bharath Rupireddy wrote: > At times, the snapshot or mapping files can be large in number and one > some platforms it takes time for checkpoint to process all of them. > Having the stats about them in server logs can help us better analyze > why checkpoint took a long time and provide a better RCA.
Do you have any numbers to share regarding that? Seeing information about 1k WAL segments being recycled and/or removed by a checkpoint where the operation takes dozens of seconds to complete because we can talk about hundred of gigs worth of files moved around. If we are talking about 100~200 files up to 10~20kB each for snapshot and mapping files, the information has less value, worth only a portion of one WAL segment. -- Michael
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