Namespaces are pretty much just a prefix, nothing tracks them. Are you using them simply to avoid name conflicts? -Sam On Fri, Jan 6, 2017 at 8:42 AM, Wido den Hollander <wido@xxxxxxxx> wrote: > >> Op 6 januari 2017 om 16:37 schreef John Spray <jspray@xxxxxxxxxx>: >> >> >> On Fri, Jan 6, 2017 at 1:44 PM, Wido den Hollander <wido@xxxxxxxx> wrote: >> > Hi, >> > >> > Together with a customer we are looking in to writing a application which will store a few PB of data using raw RADOS (librados C) and we are looking into using the RADOS namespaces to separate data. >> > >> > For each 'section' we want to use a namespace in RADOS, but that would mean we would start off with 30M namespaces and this number might grow to 50M within a few years. >> > >> > Is the a limitation for RADOS/FileStore/BlueStore for the amount of namespaces it can handle? (In a single pool?) >> >> I don't think we currently track a list of namespaces anywhere, so >> there shouldn't be any limit. The namespace effectively acts a >> special prefix to the object name. This could possibly change if we >> ever added per-namespace statistics anywhere though. > > Understood. I expected this, but I wanted to double-check anyway. We will run tests with this in the future so we will know more then. > > Wido > >> >> John >> >> > I want to test this, but writing a minimal of 30M objects takes a bit of time, so I figured I'd ask first. >> > >> > Wido >> > -- >> > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >> > the body of a message to majordomo@xxxxxxxxxxxxxxx >> > More majordomo info at http://vger.kernel.org/majordomo-info.html >> -- >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
