xanpeng / libcrush

Crush algorithm from Ceph (http://ceph.com/)

under development...

If you want to use this library, you should notice:

• apply libcrush-based-on-ceph0.86.diff, then recompile ceph and get a new librados.so
• ./build.sh to create libcrush.so
• cd build; make install to install libcrush.so
• -lcrush -lrados, link libcrush before librados, because librados contains unmodified crush codes

I want to:

• simulate CRUSH algorithm with online data in a live Ceph cluster.
• access crushmap.

How I do:

• adjust Ceph code (based on v0.86), make a new librados.
• diff: libcrush-based-on-ceph0.86.diff.

I tried:

• extract crush + client code from kernel code. -- difficult.
• use librados directly. -- no access to crushmap.