We are using ceph version 0.56.6, librados C++ APIs and have more than 750
million objects in a single pool. Objects are named as "domain-name_file-
name".
We are unable to ascertain in what order objects are listed with the command
"rados -p poolname ls". They are neither ordered on objectname, nor size or
mtime.
Q1) Is there any way we can control the way objects are scanned/listed in a
pool with the below librados c++ code? We are interested in getting list of
objects sorted or grouped by object name
librados::ObjectIterator it = ioctx.objects_begin();
for (; it != ioctx.objects_end(); ++it)
...
Q2) In near future, if we upgrade and make use of namespaces (i.e make
domain-name as namespace and store all objects of a particular domain in that
namespace); would scanning of objects in a namespace be efficient than
current scenario where we have to scan the entire pool to fetch all objects?
Q3) Do you any other recommendations on top of your mind that can improve
time required to scan all objects of pool/namespace?
Thanks,
Amit Tiwary
--
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
