On 05/06/2013 11:18 AM, Andreas Friedrich wrote:
Hello, we are using Infiniband instead of Ethernet for cluster interconnection. Instead of IPoIB (IP-over-InfiniBand Protocol) we want to use SDP (Sockets Direct Protocol) as a mid layer protocol. To connect the Ceph daemons to SDP without changing the Ceph code, the LD_PRELOAD mechanism can be used. To enable the LD_PRELOAD mechanism for the Ceph daemons only, a little generic extension in the global section of /etc/ceph/ceph.conf would be helpful, e.g.: [global] environment = LD_PRELOAD=/usr/lib64/libsdp.so.1 The appending patch adds 5 lines in the Bobtail (0.56.6) init script. The init script will then read the environment setting and - if present - call the Ceph daemons with the preceding environment string.
You can also submit this via a Pull request on Github. That way the author stays preserved and you get all the credits for this patch :)
With best regards Andreas Friedrich ---------------------------------------------------------------------- FUJITSU Fujitsu Technology Solutions GmbH Heinz-Nixdorf-Ring 1, 33106 Paderborn, Germany Tel: +49 (5251) 525-1512 Fax: +49 (5251) 525-321512 Email: andreas.friedrich@xxxxxxxxxxxxxx Web: ts.fujitsu.com Company details: de.ts.fujitsu.com/imprint ----------------------------------------------------------------------
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