Files
tromcho.net/src/osd/osd_primary_subops.cpp
T

864 lines
31 KiB
C++

// Copyright (c) Vitaliy Filippov, 2019+
// License: VNPL-1.1 (see README.md for details)
#include "osd_primary.h"
#define SELF_CLIENT 0
void osd_t::autosync()
{
if (immediate_commit != IMMEDIATE_ALL && !autosync_op)
{
if (autosync_copies_to_delete > 0)
{
autosync_copies_to_delete--;
}
autosync_op = new osd_op_t();
autosync_op->op_type = OSD_OP_IN;
autosync_op->client_id = SELF_CLIENT;
autosync_op->req = (osd_any_op_t){
.sync = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = 1,
.opcode = OSD_OP_SYNC,
},
},
};
autosync_op->callback = [this](osd_op_t *op)
{
if (op->reply.hdr.retval < 0)
{
printf("Warning: automatic sync resulted in an error: %jd (%s)\n", -op->reply.hdr.retval, strerror(-op->reply.hdr.retval));
}
delete autosync_op;
autosync_op = NULL;
if (autosync_copies_to_delete > 0)
{
// Trigger the second "copies_to_delete" autosync
autosync();
}
};
exec_op(autosync_op);
}
}
void osd_t::finish_op(osd_op_t *cur_op, int retval)
{
inflight_ops--;
if (cur_op->req.hdr.opcode == OSD_OP_READ ||
cur_op->req.hdr.opcode == OSD_OP_WRITE ||
cur_op->req.hdr.opcode == OSD_OP_DELETE)
{
// Track inode statistics
if (!cur_op->tv_end.tv_sec)
{
clock_gettime(CLOCK_REALTIME, &cur_op->tv_end);
}
uint64_t usec = (
(cur_op->tv_end.tv_sec - cur_op->tv_begin.tv_sec)*1000000 +
(cur_op->tv_end.tv_nsec - cur_op->tv_begin.tv_nsec)/1000
);
int inode_st_op = cur_op->req.hdr.opcode == OSD_OP_DELETE
? INODE_STATS_DELETE
: (cur_op->req.hdr.opcode == OSD_OP_READ ? INODE_STATS_READ : INODE_STATS_WRITE);
inode_stats[cur_op->req.rw.inode].op_count[inode_st_op]++;
inode_stats[cur_op->req.rw.inode].op_sum[inode_st_op] += usec;
if (cur_op->req.hdr.opcode == OSD_OP_DELETE)
{
if (cur_op->op_data)
{
inode_stats[cur_op->req.rw.inode].op_bytes[inode_st_op] += (cur_op->op_data->pg
? cur_op->op_data->pg->pg_data_size : 1) * bs_block_size;
}
}
else
inode_stats[cur_op->req.rw.inode].op_bytes[inode_st_op] += cur_op->req.rw.len;
}
if (cur_op->op_data)
{
if (cur_op->op_data->pg)
{
auto & pg = *cur_op->op_data->pg;
rm_inflight(pg);
}
assert(!cur_op->op_data->subops);
free(cur_op->op_data);
cur_op->op_data = NULL;
}
cur_op->reply.hdr.magic = SECONDARY_OSD_REPLY_MAGIC;
cur_op->reply.hdr.id = cur_op->req.hdr.id;
cur_op->reply.hdr.opcode = cur_op->req.hdr.opcode;
cur_op->reply.hdr.retval = retval;
if (cur_op->client_id == SELF_CLIENT)
{
// Do not include internal primary writes (recovery/rebalance) into client op statistics
if (cur_op->req.hdr.opcode != OSD_OP_WRITE)
{
msgr.measure_exec(cur_op);
}
// Copy lambda to be unaffected by `delete op`
std::function<void(osd_op_t*)>(cur_op->callback)(cur_op);
}
else
{
// FIXME add separate magic number for primary ops
auto cl_it = msgr.clients.find(cur_op->client_id);
if (cl_it != msgr.clients.end())
{
msgr.outbox_push(cur_op);
}
else
{
delete cur_op;
}
}
}
void osd_t::submit_primary_subops(int submit_type, uint64_t op_version, const uint64_t* osd_set, osd_op_t *cur_op)
{
bool wr = submit_type == SUBMIT_WRITE;
osd_primary_op_data_t *op_data = cur_op->op_data;
osd_rmw_stripe_t *stripes = op_data->stripes;
bool rep = !op_data->pg || op_data->pg->scheme == POOL_SCHEME_REPLICATED;
// Allocate subops
int n_subops = 0, zero_read = -1;
for (int role = 0; role < (op_data->pg ? op_data->pg->pg_size : 1); role++)
{
if (osd_set[role] == this->osd_num || osd_set[role] != 0 && zero_read == -1)
zero_read = role;
if (osd_set[role] != 0 && (wr || !rep && stripes[role].read_end != 0))
n_subops++;
}
if (zero_read >= 0 && !n_subops && (submit_type == SUBMIT_RMW_READ || rep))
n_subops = 1;
else
zero_read = -1;
op_data->fact_ver = 0;
op_data->done = op_data->errors = op_data->drops = op_data->errcode = 0;
op_data->n_subops = n_subops;
if (!n_subops)
{
op_data->errcode = -EIO;
op_data->subops = NULL;
op_data->errors = 1;
return;
}
op_data->subops = new osd_op_t[n_subops];
int sent = submit_primary_subop_batch(submit_type, op_data->oid.inode, op_version, op_data->stripes, osd_set, cur_op, 0, zero_read);
assert(sent == n_subops);
}
int osd_t::submit_primary_subop_batch(int submit_type, inode_t inode, uint64_t op_version,
osd_rmw_stripe_t *stripes, const uint64_t* osd_set, osd_op_t *cur_op, int subop_idx, int zero_read)
{
bool rep = !cur_op->op_data->pg || cur_op->op_data->pg->scheme == POOL_SCHEME_REPLICATED;
bool wr = submit_type == SUBMIT_WRITE;
osd_primary_op_data_t *op_data = cur_op->op_data;
int i = subop_idx;
for (int role = 0; role < (op_data->pg ? op_data->pg->pg_size : 1); role++)
{
// We always submit zero-length writes to all replicas, even if the stripe is not modified
if (!(wr || !rep && stripes[role].read_end != 0 || zero_read == role))
{
continue;
}
osd_num_t role_osd_num = osd_set[role];
int stripe_num = rep ? 0 : role;
osd_rmw_stripe_t *si = stripes + stripe_num;
if (role_osd_num != 0)
{
si->osd_num = role_osd_num;
si->role = stripe_num;
submit_primary_subop(cur_op, &op_data->subops[i], si, wr, inode, op_version);
i++;
}
else
{
si->osd_num = 0;
}
}
return i-subop_idx;
}
void osd_t::submit_primary_subop(osd_op_t *cur_op, osd_op_t *subop,
osd_rmw_stripe_t *si, bool wr, inode_t inode, uint64_t op_version)
{
uint32_t subop_len = wr
? si->write_end - si->write_start
: si->read_end - si->read_start;
if (!wr && si->read_end == UINT32_MAX)
{
subop_len = 0;
}
si->read_error = false;
subop->bitmap = si->bmp_buf;
subop->bitmap_len = clean_entry_bitmap_size;
// Using rmw_buf to pass pointer to stripes. Dirty but works
subop->rmw_buf = si;
if (si->osd_num == this->osd_num)
{
clock_gettime(CLOCK_REALTIME, &subop->tv_begin);
subop->op_type = (uint64_t)cur_op; // also dirty
subop->bs_op = new blockstore_op_t((blockstore_op_t){
.opcode = (uint64_t)(wr ? (cur_op->op_data->pg->scheme == POOL_SCHEME_REPLICATED ? BS_OP_WRITE_STABLE : BS_OP_WRITE) : BS_OP_READ),
.callback = [subop, this](blockstore_op_t *bs_subop)
{
handle_primary_bs_subop(subop);
},
{ {
.oid = (object_id){
.inode = inode,
.stripe = cur_op->op_data->oid.stripe | si->role,
},
.version = op_version,
.offset = wr ? si->write_start : si->read_start,
.len = subop_len,
} },
.buf = (uint8_t*)(wr ? si->write_buf : si->read_buf),
.bitmap = (uint8_t*)si->bmp_buf,
});
#ifdef OSD_DEBUG
printf(
"Submit %s to local: %jx:%jx v%ju %u-%u\n", wr ? "write" : "read",
inode, op_data->oid.stripe | si->role, op_version,
subop->bs_op->offset, subop->bs_op->len
);
#endif
bs->enqueue_op(subop->bs_op);
}
else
{
subop->op_type = OSD_OP_OUT;
subop->req.sec_rw = (osd_op_sec_rw_t){
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.opcode = (uint64_t)(wr ? (cur_op->op_data->pg->scheme == POOL_SCHEME_REPLICATED ? OSD_OP_SEC_WRITE_STABLE : OSD_OP_SEC_WRITE) : OSD_OP_SEC_READ),
},
.oid = {
.inode = inode,
.stripe = cur_op->op_data->oid.stripe | si->role,
},
.version = op_version,
.offset = wr ? si->write_start : si->read_start,
.len = subop_len,
.attr_len = wr ? clean_entry_bitmap_size : 0,
.flags = cur_op->client_id == SELF_CLIENT && cur_op->req.hdr.opcode != OSD_OP_SCRUB ? OSD_OP_RECOVERY_RELATED : 0,
};
#ifdef OSD_DEBUG
printf(
"Submit %s to osd %ju: %jx:%jx v%ju %u-%u\n", wr ? "write" : "read", si->osd_num,
inode, op_data->oid.stripe | si->role, op_version,
subop->req.sec_rw.offset, subop->req.sec_rw.len
);
#endif
if (wr)
{
if (si->write_end > si->write_start)
{
subop->iov.push_back(si->write_buf, si->write_end - si->write_start);
}
}
else
{
if (subop_len > 0)
{
subop->iov.push_back(si->read_buf, subop_len);
}
}
subop->callback = [cur_op, this](osd_op_t *subop)
{
handle_primary_subop(subop, cur_op);
};
submit_to_osd(subop, si->osd_num);
}
}
bool osd_t::submit_to_osd(osd_op_t *subop, osd_num_t osd_num)
{
subop->osd_num = osd_num;
auto peer_it = msgr.osd_peers.find(osd_num);
if (peer_it != msgr.osd_peers.end())
{
subop->client_id = peer_it->second->client_id;
msgr.outbox_push(subop);
}
else
{
// Fail it immediately
subop->client_id = 0;
subop->reply.hdr.retval = -EPIPE;
ringloop->set_immediate([subop]() { std::function<void(osd_op_t*)>(subop->callback)(subop); });
return false;
}
return true;
}
static uint64_t bs_op_to_osd_op[] = {
0,
OSD_OP_SEC_READ, // BS_OP_READ = 1
OSD_OP_SEC_WRITE, // BS_OP_WRITE = 2
OSD_OP_SEC_WRITE_STABLE, // BS_OP_WRITE_STABLE = 3
OSD_OP_SEC_SYNC, // BS_OP_SYNC = 4
OSD_OP_SEC_STABILIZE, // BS_OP_STABLE = 5
OSD_OP_SEC_DELETE, // BS_OP_DELETE = 6
OSD_OP_SEC_LIST, // BS_OP_LIST = 7
OSD_OP_SEC_ROLLBACK, // BS_OP_ROLLBACK = 8
};
void osd_t::handle_primary_bs_subop(osd_op_t *subop)
{
osd_op_t *cur_op = (osd_op_t*)subop->op_type;
blockstore_op_t *bs_op = subop->bs_op;
int expected = bs_op->opcode == BS_OP_READ || bs_op->opcode == BS_OP_WRITE
|| bs_op->opcode == BS_OP_WRITE_STABLE ? bs_op->len : 0;
if (bs_op->retval != expected && bs_op->opcode != BS_OP_READ &&
(bs_op->opcode != BS_OP_WRITE && bs_op->opcode != BS_OP_WRITE_STABLE ||
bs_op->retval != -ENOSPC))
{
// die on any error except ENOSPC during write
if (bs_op->opcode == BS_OP_WRITE || bs_op->opcode == BS_OP_WRITE_STABLE)
{
printf(
"%s subop to %jx:%jx v%ju failed locally: retval = %d (expected %d)\n",
osd_op_names[bs_op_to_osd_op[bs_op->opcode]],
bs_op->oid.inode, bs_op->oid.stripe, bs_op->version, bs_op->retval, expected
);
}
else
{
printf(
"%s subop failed locally: retval = %d (expected %d)\n",
osd_op_names[bs_op_to_osd_op[bs_op->opcode]], bs_op->retval, expected
);
}
throw std::runtime_error("local blockstore modification failed");
}
bool recovery_related = cur_op->client_id == SELF_CLIENT && cur_op->req.hdr.opcode != OSD_OP_SCRUB;
add_bs_subop_stats(subop, recovery_related);
subop->req.hdr.opcode = bs_op_to_osd_op[bs_op->opcode];
subop->reply.hdr.retval = bs_op->retval;
if (bs_op->opcode == BS_OP_READ || bs_op->opcode == BS_OP_WRITE || bs_op->opcode == BS_OP_WRITE_STABLE)
{
subop->req.sec_rw.oid = bs_op->oid;
subop->req.sec_rw.version = bs_op->version;
subop->req.sec_rw.len = bs_op->len;
subop->reply.sec_rw.version = bs_op->version;
}
delete bs_op;
subop->bs_op = NULL;
subop->client_id = SELF_CLIENT;
if (recovery_related && recovery_target_sleep_us)
{
tfd->set_timer_us(recovery_target_sleep_us, false, [=](int timer_id)
{
handle_primary_subop(subop, cur_op);
});
}
else
{
handle_primary_subop(subop, cur_op);
}
}
void osd_t::add_bs_subop_stats(osd_op_t *subop, bool recovery_related)
{
// Include local blockstore ops in statistics
uint64_t opcode = bs_op_to_osd_op[subop->bs_op->opcode];
timespec tv_end;
clock_gettime(CLOCK_REALTIME, &tv_end);
uint64_t len = (opcode == OSD_OP_SEC_READ || opcode == OSD_OP_SEC_WRITE || opcode == OSD_OP_SEC_WRITE_STABLE)
? subop->bs_op->len : 0;
msgr.inc_op_stats(msgr.stats, opcode, subop->tv_begin, tv_end, len);
if (recovery_related)
{
// It is OSD_OP_RECOVERY_RELATED
msgr.inc_op_stats(msgr.recovery_stats, opcode, subop->tv_begin, tv_end, len);
}
}
void osd_t::handle_primary_subop(osd_op_t *subop, osd_op_t *cur_op)
{
uint64_t opcode = subop->req.hdr.opcode;
int retval = subop->reply.hdr.retval;
int expected;
if (opcode == OSD_OP_SEC_READ || opcode == OSD_OP_SEC_WRITE || opcode == OSD_OP_SEC_WRITE_STABLE)
expected = subop->req.sec_rw.len;
else if (opcode == OSD_OP_SEC_READ_BMP)
expected = subop->req.sec_read_bmp.len / sizeof(obj_ver_id) * (8 + clean_entry_bitmap_size);
else
expected = 0;
osd_primary_op_data_t *op_data = cur_op->op_data;
if (retval == -ENOENT && opcode == OSD_OP_SEC_READ)
{
// ENOENT is not an error for almost all reads, except scrub
retval = expected;
memset(((osd_rmw_stripe_t*)subop->rmw_buf)->read_buf, 0, expected);
((osd_rmw_stripe_t*)subop->rmw_buf)->not_exists = true;
}
if (opcode == OSD_OP_SEC_READ && (retval == -EIO || retval == -EDOM) ||
opcode == OSD_OP_SEC_WRITE && retval != expected)
{
// We'll retry reads from other replica(s) on EIO/EDOM and mark object as corrupted
// And we'll mark write as failed
((osd_rmw_stripe_t*)subop->rmw_buf)->read_error = true;
}
if (retval == expected && (opcode == OSD_OP_SEC_READ || opcode == OSD_OP_SEC_WRITE || opcode == OSD_OP_SEC_WRITE_STABLE))
{
uint64_t version = subop->reply.sec_rw.version;
#ifdef OSD_DEBUG
if (subop->client_id == SELF_CLIENT)
printf("subop %s %jx:%jx from local: version = %ju\n", osd_op_names[opcode],
subop->req.sec_rw.oid.inode, subop->req.sec_rw.oid.stripe, version);
else if (msgr.clients.find(subop->client_id) != msgr.clients.end())
printf("subop %s %jx:%jx from osd %ju: version = %ju\n", osd_op_names[opcode],
subop->req.sec_rw.oid.inode, subop->req.sec_rw.oid.stripe, msgr.clients.at(subop->client_id)->osd_num, version);
else
printf("subop %s %jx:%jx from client %ju: version = %ju\n", osd_op_names[opcode],
subop->req.sec_rw.oid.inode, subop->req.sec_rw.oid.stripe, subop->client_id, version);
#endif
if (version != 0 && op_data->fact_ver != UINT64_MAX)
{
if (op_data->fact_ver != 0 && op_data->fact_ver != version)
{
fprintf(
stderr, "different fact_versions returned from %s %jx:%jx subops for a %s op: %ju vs %ju\n",
osd_op_names[opcode], subop->req.sec_rw.oid.inode, subop->req.sec_rw.oid.stripe,
osd_op_names[cur_op->req.hdr.opcode], version, op_data->fact_ver
);
retval = -ERANGE;
}
else
op_data->fact_ver = version;
}
}
if (retval != expected)
{
int64_t peer_osd = (msgr.clients.find(subop->client_id) != msgr.clients.end()
? msgr.clients.at(subop->client_id)->osd_num : 0);
if (opcode == OSD_OP_SEC_READ || opcode == OSD_OP_SEC_WRITE || opcode == OSD_OP_SEC_WRITE_STABLE)
{
printf("%s subop to %jx:%jx v%ju failed ", osd_op_names[opcode],
subop->req.sec_rw.oid.inode, subop->req.sec_rw.oid.stripe, subop->req.sec_rw.version);
if (subop->client_id && peer_osd > 0)
printf("on osd %ju: retval = %d (expected %d)\n", peer_osd, retval, expected);
else if (subop->client_id)
printf("on client %ju: retval = %d (expected %d)\n", subop->client_id, retval, expected);
else
printf("locally: retval = %d (expected %d)\n", retval, expected);
}
else if (opcode == OSD_OP_SEC_DELETE)
{
printf(
"delete subop to %jx:%jx v%ju failed on osd %jd: retval = %d (expected %d)\n",
subop->req.sec_del.oid.inode, subop->req.sec_del.oid.stripe, subop->req.sec_del.version,
peer_osd, retval, expected
);
}
else
{
printf(
"%s subop failed on osd %ju: retval = %d (expected %d)\n",
osd_op_names[opcode], peer_osd, retval, expected
);
}
subop->rmw_buf = NULL;
// Error priority: ENOSPC > others > EIO > EDOM > EPIPE
if (op_data->errcode == 0 ||
retval == -ENOSPC && op_data->errcode != -ENOSPC ||
retval == -EIO && (op_data->errcode == -EDOM || op_data->errcode == -EPIPE) ||
retval == -EDOM && (op_data->errcode == -EPIPE) ||
retval != -EIO && retval != -EDOM && retval != -EPIPE)
{
op_data->errcode = retval;
}
if (subop->client_id && retval != -EDOM && retval != -ERANGE &&
(retval != -ENOSPC || opcode != OSD_OP_SEC_WRITE && opcode != OSD_OP_SEC_WRITE_STABLE) &&
(retval != -EIO || opcode != OSD_OP_SEC_READ))
{
// Drop connection on unexpected errors
msgr.stop_client(subop->client_id);
op_data->drops++;
}
// Increase op_data->errors after stop_client to prevent >= n_subops running twice
op_data->errors++;
}
else
{
subop->rmw_buf = NULL;
op_data->done++;
}
if ((op_data->errors + op_data->done) >= op_data->n_subops)
{
if (opcode != OSD_OP_SEC_WRITE && opcode != OSD_OP_SEC_WRITE_STABLE)
{
delete[] op_data->subops;
op_data->subops = NULL;
}
op_data->st++;
if (cur_op->req.hdr.opcode == OSD_OP_READ)
{
continue_primary_read(cur_op);
}
else if (cur_op->req.hdr.opcode == OSD_OP_WRITE)
{
continue_primary_write(cur_op);
}
else if (cur_op->req.hdr.opcode == OSD_OP_SYNC)
{
continue_primary_sync(cur_op);
}
else if (cur_op->req.hdr.opcode == OSD_OP_DELETE)
{
continue_primary_del(cur_op);
}
else if (cur_op->req.hdr.opcode == OSD_OP_SCRUB)
{
continue_primary_scrub(cur_op);
}
else
{
throw std::runtime_error("BUG: unknown opcode");
}
}
}
void osd_t::cancel_primary_write(osd_op_t *cur_op)
{
if (cur_op->op_data && cur_op->op_data->subops)
{
// Primary-write operation is waiting for subops, subops
// are sent to peer OSDs, so we can't just throw them away.
// Mark them with an extra EPIPE.
cur_op->op_data->errors++;
if (cur_op->op_data->errcode == 0)
cur_op->op_data->errcode = -EPIPE;
cur_op->op_data->done--; // Caution: `done` must be signed because may become -1 here
}
else
{
finish_op(cur_op, -EPIPE);
}
}
bool contains_osd(osd_num_t *osd_set, uint64_t size, osd_num_t osd_num)
{
for (uint64_t i = 0; i < size; i++)
{
if (osd_set[i] == osd_num)
{
return true;
}
}
return false;
}
void osd_t::submit_primary_del_subops(osd_op_t *cur_op, osd_num_t *cur_set, uint64_t set_size, pg_osd_set_t & loc_set)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
bool rep = op_data->pg->scheme == POOL_SCHEME_REPLICATED;
obj_ver_osd_t extra_chunks[loc_set.size()];
int chunks_to_del = 0;
for (auto & chunk: loc_set)
{
// ordered comparison for EC/XOR, unordered for replicated pools
if (!cur_set || (rep
? !contains_osd(cur_set, set_size, chunk.osd_num)
: (chunk.osd_num != cur_set[chunk.role])))
{
extra_chunks[chunks_to_del++] = (obj_ver_osd_t){
.osd_num = chunk.osd_num,
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | (rep ? 0 : chunk.role),
},
// Same version as write
.version = op_data->fact_ver,
};
}
}
submit_primary_del_batch(cur_op, extra_chunks, chunks_to_del);
}
void osd_t::submit_primary_del_batch(osd_op_t *cur_op, obj_ver_osd_t *chunks_to_delete, int chunks_to_delete_count)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
op_data->n_subops = chunks_to_delete_count;
op_data->done = op_data->errors = op_data->errcode = 0;
if (op_data->n_subops <= 0)
{
return;
}
osd_op_t *subops = new osd_op_t[chunks_to_delete_count];
op_data->subops = subops;
for (int i = 0; i < chunks_to_delete_count; i++)
{
auto & chunk = chunks_to_delete[i];
if (chunk.osd_num == this->osd_num)
{
clock_gettime(CLOCK_REALTIME, &subops[i].tv_begin);
subops[i].op_type = (uint64_t)cur_op;
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_DELETE,
.callback = [subop = &subops[i], this](blockstore_op_t *bs_subop)
{
handle_primary_bs_subop(subop);
},
{ {
.oid = chunk.oid,
.version = chunk.version,
} },
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].req = (osd_any_op_t){ .sec_del = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.opcode = OSD_OP_SEC_DELETE,
},
.oid = chunk.oid,
.version = chunk.version,
.flags = cur_op->client_id == SELF_CLIENT && cur_op->req.hdr.opcode != OSD_OP_SCRUB ? OSD_OP_RECOVERY_RELATED : 0,
} };
subops[i].callback = [cur_op, this](osd_op_t *subop)
{
handle_primary_subop(subop, cur_op);
};
submit_to_osd(&subops[i], chunk.osd_num);
}
}
}
void osd_t::submit_primary_sync_subops(osd_op_t *cur_op)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
int n_osds = op_data->dirty_osd_count;
op_data->done = op_data->errors = op_data->errcode = 0;
op_data->n_subops = n_osds;
if (op_data->n_subops <= 0)
{
return;
}
osd_op_t *subops = new osd_op_t[n_osds];
op_data->subops = subops;
robin_hood::unordered_flat_map<uint64_t, osd_client_t*>::iterator peer_it;
int subop_idx = 0;
for (int i = 0; i < n_osds; i++)
{
osd_num_t sync_osd = op_data->dirty_osds[i];
osd_op_t *subop = &subops[subop_idx];
if (sync_osd == this->osd_num)
{
clock_gettime(CLOCK_REALTIME, &subop->tv_begin);
subop->op_type = (uint64_t)cur_op;
subop->bs_op = new blockstore_op_t({
.opcode = BS_OP_SYNC,
.callback = [subop, this](blockstore_op_t *bs_subop)
{
handle_primary_bs_subop(subop);
},
});
bs->enqueue_op(subop->bs_op);
subop_idx++;
}
else if ((peer_it = msgr.osd_peers.find(sync_osd)) != msgr.osd_peers.end())
{
subop->op_type = OSD_OP_OUT;
subop->osd_num = sync_osd;
subop->client_id = peer_it->second->client_id;
subop->req = (osd_any_op_t){ .sec_sync = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.opcode = OSD_OP_SEC_SYNC,
},
.flags = cur_op->client_id == SELF_CLIENT && cur_op->req.hdr.opcode != OSD_OP_SCRUB ? OSD_OP_RECOVERY_RELATED : 0,
} };
subop->callback = [cur_op, this](osd_op_t *subop)
{
handle_primary_subop(subop, cur_op);
};
msgr.outbox_push(subop);
subop_idx++;
}
}
op_data->n_subops = subop_idx;
if (subop_idx <= 0)
{
delete[] op_data->subops;
op_data->subops = NULL;
}
}
void osd_t::submit_primary_stab_subops(osd_op_t *cur_op)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
int n_osds = op_data->unstable_write_osds->size();
op_data->done = op_data->errors = op_data->errcode = 0;
op_data->n_subops = n_osds;
if (op_data->n_subops <= 0)
{
return;
}
osd_op_t *subops = new osd_op_t[n_osds];
op_data->subops = subops;
for (int i = 0; i < n_osds; i++)
{
auto & stab_osd = (*(op_data->unstable_write_osds))[i];
if (stab_osd.osd_num == this->osd_num)
{
clock_gettime(CLOCK_REALTIME, &subops[i].tv_begin);
subops[i].op_type = (uint64_t)cur_op;
subops[i].bs_op = new blockstore_op_t((blockstore_op_t){
.opcode = BS_OP_STABLE,
.callback = [subop = &subops[i], this](blockstore_op_t *bs_subop)
{
handle_primary_bs_subop(subop);
},
{
.len = (uint32_t)stab_osd.len,
},
.buf = (uint8_t*)(op_data->unstable_writes + stab_osd.start),
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].req = (osd_any_op_t){ .sec_stab = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.opcode = OSD_OP_SEC_STABILIZE,
},
.len = (uint64_t)(stab_osd.len * sizeof(obj_ver_id)),
.flags = cur_op->client_id == SELF_CLIENT && cur_op->req.hdr.opcode != OSD_OP_SCRUB ? OSD_OP_RECOVERY_RELATED : 0,
} };
subops[i].iov.push_back(op_data->unstable_writes + stab_osd.start, stab_osd.len * sizeof(obj_ver_id));
subops[i].callback = [cur_op, this](osd_op_t *subop)
{
handle_primary_subop(subop, cur_op);
};
submit_to_osd(&subops[i], stab_osd.osd_num);
}
}
}
void osd_t::submit_primary_rollback_subops(osd_op_t *cur_op, const uint64_t* osd_set)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
osd_rmw_stripe_t *stripes = op_data->stripes;
assert(op_data->pg->scheme != POOL_SCHEME_REPLICATED);
// Allocate subops
int n_subops = 0;
for (int role = 0; role < op_data->pg->pg_size; role++)
{
if (osd_set[role] != 0 && !stripes[role].read_error &&
(osd_set[role] == this->osd_num || msgr.osd_peers.find(osd_set[role]) != msgr.osd_peers.end()))
{
n_subops++;
}
}
op_data->n_subops = n_subops;
op_data->done = op_data->errors = 0;
if (!op_data->n_subops)
{
return;
}
op_data->subops = new osd_op_t[n_subops];
op_data->unstable_writes = new obj_ver_id[n_subops];
int i = 0;
for (int role = 0; role < op_data->pg->pg_size; role++)
{
if (osd_set[role] != 0 && !stripes[role].read_error &&
(osd_set[role] == this->osd_num || msgr.osd_peers.find(osd_set[role]) != msgr.osd_peers.end()))
{
osd_op_t *subop = &op_data->subops[i];
op_data->unstable_writes[i] = (obj_ver_id){
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | role,
},
.version = op_data->target_ver-1,
};
if (osd_set[role] == this->osd_num)
{
clock_gettime(CLOCK_REALTIME, &subop->tv_begin);
subop->op_type = (uint64_t)cur_op;
subop->bs_op = new blockstore_op_t((blockstore_op_t){
.opcode = BS_OP_ROLLBACK,
.callback = [subop, this](blockstore_op_t *bs_subop)
{
handle_primary_bs_subop(subop);
},
{
.len = 1,
},
.buf = (uint8_t*)(op_data->unstable_writes + i),
});
#ifdef OSD_DEBUG
printf(
"Submit rollback to local: %jx:%jx v%ju\n",
op_data->oid.inode, op_data->oid.stripe | role, op_data->target_ver-1
);
#endif
bs->enqueue_op(subop->bs_op);
}
else
{
subop->op_type = OSD_OP_OUT;
subop->req = (osd_any_op_t){ .sec_stab = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.opcode = OSD_OP_SEC_ROLLBACK,
},
.len = sizeof(obj_ver_id),
} };
subop->iov.push_back(op_data->unstable_writes + i, sizeof(obj_ver_id));
subop->callback = [cur_op, this](osd_op_t *subop)
{
handle_primary_subop(subop, cur_op);
};
#ifdef OSD_DEBUG
printf(
"Submit rollback to osd %ju: %jx:%jx v%ju\n", osd_set[role],
op_data->oid.inode, op_data->oid.stripe | role, op_data->target_ver-1
);
#endif
submit_to_osd(subop, osd_set[role]);
}
i++;
}
}
}
void osd_t::pg_cancel_write_queue(pg_t & pg, osd_op_t *first_op, object_id oid, int retval)
{
auto st_it = pg.write_queue.find(oid), it = st_it;
if (it == pg.write_queue.end() || it->second != first_op)
{
// Write queue doesn't match the first operation.
// first_op is a leftover operation from the previous peering of the same PG.
finish_op(first_op, retval);
return;
}
std::vector<osd_op_t*> cancel_ops;
while (it != pg.write_queue.end() && it->first == oid)
{
cancel_ops.push_back(it->second);
it++;
}
if (st_it != it)
{
// First erase them and then run finish_op() for the sake of reenterability
// Calling finish_op() on a live iterator previously triggered a bug where some
// of the OSDs were looping infinitely if you stopped all of them with kill -INT during recovery
pg.write_queue.erase(st_it, it);
for (auto op: cancel_ops)
{
finish_op(op, retval);
}
}
}