> Op 16 november 2017 om 16:46 schreef Robert Stanford > <rstanford8...@gmail.com>: > > > Thanks. Does this mean that I can send >90MB objects to my RGWs and they > will break it up into manageable (<=90MB) chunks before storing them? Or > if I'm going to store objects > 90MB do I need to change this parameter? >
Yes, the RGW breaks it up into 4MB chunks and writes that to RADOS. In your case, don't worry about this, upload a 100MB object to RGW and it will take care of the rest. > I don't know if we'll be able to use libradosstriper, but thanks for > bringing it to my attention. We are using the S3 interface of RGW > exclusively (nothing custom in there). > Only a custom application will use libradosstriper. So don't worry. Wido > > On Thu, Nov 16, 2017 at 9:41 AM, Wido den Hollander <w...@42on.com> wrote: > > > > > > Op 16 november 2017 om 16:32 schreef Robert Stanford < > > rstanford8...@gmail.com>: > > > > > > > > > Once 'osd max write size' (90MB by default I believe) is exceeded, does > > > Ceph reject the object (which is coming in through RGW), or does it break > > > it up into smaller objects (of max 'osd max write size' size)? If it > > > breaks them up, does it read the fragments in parallel when they're > > > requested by RGW? > > > > > > > The OSD rejects the write. However, RGW already does striping over RADOS > > objects. > > > > Usually you don't need to worry about this setting unless you are talking > > to RADOS directly. > > > > However, 90MB objects are big and you should look into libradosstriper. > > > > Wido > > > > > Thanks > > > _______________________________________________ > > > ceph-users mailing list > > > ceph-users@lists.ceph.com > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
