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(Probably almost) implement cluster client

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This commit is contained in:
Vitaliy Filippov
2020-06-07 00:09:36 +03:00
parent 2f6cf605a1
commit c573bc6bb3
13 changed files with 432 additions and 86 deletions
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osd_primary.cpp
+8 -10
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@@ -13,9 +13,14 @@ bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
{
// PG number is calculated from the offset
// Our EC scheme stores data in fixed chunks equal to (K*block size)
// But we must not use K in the process of calculating the PG number
// So we calculate the PG number using a separate setting which should be per-inode (FIXME)
pg_num_t pg_num = (cur_op->req.rw.inode + cur_op->req.rw.offset / pg_stripe_size) % pg_count + 1;
// K = pg_minsize and will be a property of the inode. Not it's hardcoded (FIXME)
uint64_t pg_block_size = bs_block_size * 2;
object_id oid = {
.inode = cur_op->req.rw.inode,
// oid.stripe = starting offset of the parity stripe
.stripe = (cur_op->req.rw.offset/pg_block_size)*pg_block_size,
};
pg_num_t pg_num = (cur_op->req.rw.inode + oid.stripe/pg_stripe_size) % pg_count + 1;
auto pg_it = pgs.find(pg_num);
if (pg_it == pgs.end() || !(pg_it->second.state & PG_ACTIVE))
{
@@ -23,13 +28,6 @@ bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
finish_op(cur_op, -EPIPE);
return false;
}
uint64_t pg_block_size = bs_block_size * pg_it->second.pg_minsize;
object_id oid = {
.inode = cur_op->req.rw.inode,
// oid.stripe = starting offset of the parity stripe, so it can be mapped back to the PG
.stripe = (cur_op->req.rw.offset / pg_stripe_size) * pg_stripe_size +
((cur_op->req.rw.offset % pg_stripe_size) / pg_block_size) * pg_block_size
};
if ((cur_op->req.rw.offset + cur_op->req.rw.len) > (oid.stripe + pg_block_size) ||
(cur_op->req.rw.offset % bs_disk_alignment) != 0 ||
(cur_op->req.rw.len % bs_disk_alignment) != 0)