Thanks. Why are omaps not allowed for objects in EC pools? On Tue, May 17, 2016 at 7:22 PM, Sage Weil <sage@xxxxxxxxxxxx> wrote: > On Tue, 17 May 2016, Chandan Kumar Singh wrote: >> Hi >> >> While migrating to EC pools, I came to know that it does not support >> omaps but it allows thousands of xattrs (XFS). Are these xattrs being >> stored in a key-value store or in XFS file system? > > They are stored in XFS, until there are more than a handful, after which > point they get stored in leveldb. But they are *also* stored in every pg > log event that modifies the object, so you should definitely not (ab)use > xattrs the way you would use omap and expect the system to behave/perform! > They are meant to be small and few. > > sage -- 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
