Hello Stephen, Thanks for your prompt response. As recommended by you, I will try to isolate the problem at system level, Meanwhile, Is there any system recommendation by pgbackrest, (how much process-max should be configured) should I set affinity to pgbackrest process, how many core should be kept for backup /restore. Or any other configuration?
My DB size is 500GB and increasing . Regards, Ajay On Fri, Oct 11, 2019 at 6:20 PM Stephen Frost <sfr...@snowman.net> wrote: > Greetings, > > * Ajay Pratap (ajaypra...@ameyo.com) wrote: > > I have a Centos 7 server which runs Postgresql 10.7. I am using > pgbackrest > > to take db backup. > > Problem is backup is too slow. > > Have you tried running 'top' to see what's going on? > > > My data dir size is 9.6G and full backup runtime is 22 mins > > I also tried using process-max=3, full backup runtime = 21 mins > > Erm, those numbers don't make any sense to me- as an example, we > regularly back up a 12GB database, from Dallas to San Fran, in 5 > minutes. > > I see you're requesting a checkpoint to start immediately, but how long > does the checkpoint actually take to complete? Have you looked at your > PG logs..? > > Have you tried running 'top' and then running the backup and looked to > see what's going on? Is the CPU at 100%? Are all the processes stuck > in 'D' state all the time (meaning you don't have enough i/o resources), > or...? > > > In production we have a database of size more than 500GB. It would not be > > feasible for me to use it as it is.pgbackrest version is > > 2.18-1.rhel7.x86_64. > > installed from pgdg yum repo. > > Given sufficient resources, we've seen pgbackrest push over 1TB/hour, so > there is definitely something strange going on here. > > Thanks, > > Stephen > -- *Disclaimer:* The information in this communication is confidential and may be legally privileged. It is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking action in reliance of the contents of this information is strictly prohibited and may be unlawful. Drishti is neither liable for the improper, incomplete transmission of the information contained in this communication nor any delay in its receipt. The communication is not intended to operate as an electronic signature under any applicable law. Drishti assumes no responsibility for any loss or damage resulting from the use of e-mails.
