Hi, While researching the crush multipick anomaly[1], Pedro López-Adeva Fernández-Layos came up with a problem statement and a python implementation[2]. It is work in progress and it seemed useful to have a python module implementing crush to help with experimentations. The python-crush[3] module was written for that purpose last week and published on PyPI. It proposes an API with two functions (parse the crushmap & map an object). The crushmap is a python object and is fully documented[4]. Although python-crush is usable as it is, noone should depend on it right now because two important aspects need to be discussed: - should the API be different ? - is the crushmap format ok ? In other words, the current python-crush module is a basis for discussion and there is a good chance both the API and the crushmap are completely different in a few weeks. Cheers [1] crush multipick anomaly http://marc.info/?l=ceph-devel&m=148539995928656&w=2 [2] https://github.com/plafl/notebooks/blob/master/converted/replication.pdf [3] python-crush http://crush.readthedocs.io/ [4] crushmap documentation http://crush.readthedocs.io/en/latest/api.html#crush.Crush.parse -- Loïc Dachary, Artisan Logiciel Libre -- 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
