John, I'm not sure I completely understand what you are doing, but it
SOUNDS to me like what you need is to write a distribution for your
situation. You really shouldn't have to change Trove, as all it does is
read or write the segments as dictated by the distribution. Writing a
distributi
On June 28, 2006, at 9:46AM, John Bent wrote:
Thanks Sam,
Sadly, however, your suggestion did not just work directly out of
the box.
The servers are not at the correct logical offsets and are overwriting
each other. Additionally, your approach suffers the same problem that
mine did which
Well, to my mind the problem is that the client won't know to divy up
the requests to more than 1 server with the basic dist. But I'm not
100% certain that's accurate.
If you have the client sending the work to all of the servers, then the
basic dist will translate logical to physical offsets
Thanks Sam,
Sadly, however, your suggestion did not just work directly out of the box.
The servers are not at the correct logical offsets and are overwriting
each other. Additionally, your approach suffers the same problem that
mine did which is that each datafile (which is actually now the same
Hi John,
I think the best way (others can correct me) to modify the pvfs2 code
to get the trove layer to operate on the logical offsets and sizes is
in the flow code (flowproto_multiqueue.c). My reasoning is that the
flow layer converts the PVFS_Request structure into the physical
offse
Ok, I've removed the footnote. Now I'm doing everything within the new
trove layer and no longer doing it in the PINT_distribute although I did
change some things slightly. The problem was that PINT_ADD_SEGMENT was
combining the segments assuming they were in their own individual stripe.
However
Hello,
I'm working on a pet research project in which I'm (somewhat abashedly)
actually _removing_ functionality from PVFS2. What I'm trying to do is
create a new trove interface in which requests to disk are no longer
logically striped across multiple PVFS2 servers each with its own
physical st
