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Split osd_primary.cpp

trace-sqes
Vitaliy Filippov 1 year ago
parent
commit
00cf24fbd7
  1. 6
      Makefile
  2. 475
      osd_primary.cpp
  3. 35
      osd_primary.h
  4. 442
      osd_primary_subops.cpp

6
Makefile

@ -30,7 +30,7 @@ libfio_blockstore.so: ./libblockstore.so fio_engine.cpp json11.o
g++ $(CXXFLAGS) -shared -o libfio_blockstore.so fio_engine.cpp json11.o ./libblockstore.so -ltcmalloc_minimal -luring
OSD_OBJS := osd.o osd_secondary.o osd_receive.o osd_send.o osd_peering.o osd_flush.o osd_peering_pg.o \
osd_primary.o osd_cluster.o osd_http.o osd_rmw.o json11.o timerfd_interval.o base64.o timerfd_manager.o
osd_primary.o osd_primary_subops.o osd_cluster.o osd_http.o osd_rmw.o json11.o timerfd_interval.o base64.o timerfd_manager.o
base64.o: base64.cpp base64.h
g++ $(CXXFLAGS) -c -o $@ $<
osd_secondary.o: osd_secondary.cpp osd.h osd_ops.h ringloop.h
@ -53,7 +53,9 @@ osd_rmw.o: osd_rmw.cpp osd_rmw.h xor.h
g++ $(CXXFLAGS) -c -o $@ $<
osd_rmw_test: osd_rmw_test.cpp osd_rmw.cpp osd_rmw.h xor.h
g++ $(CXXFLAGS) -o $@ $<
osd_primary.o: osd_primary.cpp osd.h osd_ops.h osd_peering_pg.h xor.h ringloop.h
osd_primary.o: osd_primary.cpp osd_primary.h osd_rmw.h osd.h osd_ops.h osd_peering_pg.h xor.h ringloop.h
g++ $(CXXFLAGS) -c -o $@ $<
osd_primary_subops.o: osd_primary_subops.cpp osd_primary.h osd_rmw.h osd.h osd_ops.h osd_peering_pg.h xor.h ringloop.h
g++ $(CXXFLAGS) -c -o $@ $<
osd.o: osd.cpp osd.h osd_http.h osd_ops.h osd_peering_pg.h ringloop.h
g++ $(CXXFLAGS) -c -o $@ $<

475
osd_primary.cpp

@ -1,11 +1,4 @@
#include "osd.h"
#include "osd_rmw.h"
// FIXME: Split into more files
#define SUBMIT_READ 0
#define SUBMIT_RMW_READ 1
#define SUBMIT_WRITE 2
#include "osd_primary.h"
// read: read directly or read paired stripe(s), reconstruct, return
// write: read paired stripe(s), reconstruct, modify, calculate parity, write
@ -16,70 +9,6 @@
//
// sync: sync peers, get unstable versions, stabilize them
struct unstable_osd_num_t
{
osd_num_t osd_num;
int start, len;
};
struct osd_primary_op_data_t
{
int st = 0;
pg_num_t pg_num;
object_id oid;
uint64_t target_ver;
uint64_t fact_ver = 0;
int n_subops = 0, done = 0, errors = 0, epipe = 0;
int degraded = 0, pg_size, pg_minsize;
osd_rmw_stripe_t *stripes;
osd_op_t *subops = NULL;
uint64_t *prev_set = NULL;
pg_osd_set_state_t *object_state = NULL;
// for sync. oops, requires freeing
std::vector<unstable_osd_num_t> *unstable_write_osds = NULL;
pg_num_t *dirty_pgs = NULL;
int dirty_pg_count = 0;
obj_ver_id *unstable_writes = NULL;
};
void osd_t::finish_op(osd_op_t *cur_op, int retval)
{
inflight_ops--;
if (cur_op->op_data && cur_op->op_data->pg_num > 0)
{
auto & pg = pgs[cur_op->op_data->pg_num];
pg.inflight--;
assert(pg.inflight >= 0);
if ((pg.state & PG_STOPPING) && pg.inflight == 0 && !pg.flush_batch)
{
finish_stop_pg(pg);
}
}
if (!cur_op->peer_fd)
{
// 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
auto cl_it = clients.find(cur_op->peer_fd);
if (cl_it != clients.end())
{
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;
outbox_push(cl_it->second, cur_op);
}
else
{
delete cur_op;
}
}
}
bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
{
// PG number is calculated from the offset
@ -120,7 +49,7 @@ bool osd_t::prepare_primary_rw(osd_op_t *cur_op)
return true;
}
uint64_t* get_object_osd_set(pg_t &pg, object_id &oid, uint64_t *def, pg_osd_set_state_t **object_state)
static uint64_t* get_object_osd_set(pg_t &pg, object_id &oid, uint64_t *def, pg_osd_set_state_t **object_state)
{
if (!(pg.state & (PG_HAS_INCOMPLETE | PG_HAS_DEGRADED | PG_HAS_MISPLACED)))
{
@ -226,185 +155,6 @@ resume_2:
finish_op(cur_op, cur_op->req.rw.len);
}
void osd_t::submit_primary_subops(int submit_type, int pg_size, const uint64_t* osd_set, osd_op_t *cur_op)
{
bool w = submit_type == SUBMIT_WRITE;
osd_primary_op_data_t *op_data = cur_op->op_data;
osd_rmw_stripe_t *stripes = op_data->stripes;
// Allocate subops
int n_subops = 0, zero_read = -1;
for (int role = 0; role < pg_size; role++)
{
if (osd_set[role] == this->osd_num || osd_set[role] != 0 && zero_read == -1)
{
zero_read = role;
}
if (osd_set[role] != 0 && (w || stripes[role].read_end != 0))
{
n_subops++;
}
}
if (!n_subops && submit_type == SUBMIT_RMW_READ)
{
n_subops = 1;
}
else
{
zero_read = -1;
}
uint64_t op_version = w ? op_data->fact_ver+1 : (submit_type == SUBMIT_RMW_READ ? UINT64_MAX : op_data->target_ver);
osd_op_t *subops = new osd_op_t[n_subops];
op_data->fact_ver = 0;
op_data->done = op_data->errors = 0;
op_data->n_subops = n_subops;
op_data->subops = subops;
int subop = 0;
for (int role = 0; role < pg_size; role++)
{
// We always submit zero-length writes to all replicas, even if the stripe is not modified
if (!(w || stripes[role].read_end != 0 || zero_read == role))
{
continue;
}
osd_num_t role_osd_num = osd_set[role];
if (role_osd_num != 0)
{
if (role_osd_num == this->osd_num)
{
subops[subop].bs_op = new blockstore_op_t({
.opcode = (uint64_t)(w ? BS_OP_WRITE : BS_OP_READ),
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->opcode == BS_OP_WRITE && subop->retval != subop->len)
{
// die
throw std::runtime_error("local write operation failed (retval = "+std::to_string(subop->retval)+")");
}
handle_primary_subop(
subop->opcode == BS_OP_WRITE ? OSD_OP_SECONDARY_WRITE : OSD_OP_SECONDARY_READ,
cur_op, subop->retval, subop->len, subop->version
);
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | role,
},
.version = op_version,
.offset = w ? stripes[role].write_start : stripes[role].read_start,
.len = w ? stripes[role].write_end - stripes[role].write_start : stripes[role].read_end - stripes[role].read_start,
.buf = w ? stripes[role].write_buf : stripes[role].read_buf,
});
bs->enqueue_op(subops[subop].bs_op);
}
else
{
subops[subop].op_type = OSD_OP_OUT;
subops[subop].send_list.push_back(subops[subop].req.buf, OSD_PACKET_SIZE);
subops[subop].peer_fd = this->osd_peer_fds.at(role_osd_num);
subops[subop].req.sec_rw = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = (uint64_t)(w ? OSD_OP_SECONDARY_WRITE : OSD_OP_SECONDARY_READ),
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | role,
},
.version = op_version,
.offset = w ? stripes[role].write_start : stripes[role].read_start,
.len = w ? stripes[role].write_end - stripes[role].write_start : stripes[role].read_end - stripes[role].read_start,
};
subops[subop].buf = w ? stripes[role].write_buf : stripes[role].read_buf;
if (w && stripes[role].write_end > 0)
{
subops[subop].send_list.push_back(stripes[role].write_buf, stripes[role].write_end - stripes[role].write_start);
}
subops[subop].callback = [cur_op, this](osd_op_t *subop)
{
int fail_fd = subop->req.hdr.opcode == OSD_OP_SECONDARY_WRITE &&
subop->reply.hdr.retval != subop->req.sec_rw.len ? subop->peer_fd : -1;
// so it doesn't get freed
subop->buf = NULL;
handle_primary_subop(
subop->req.hdr.opcode, cur_op, subop->reply.hdr.retval,
subop->req.sec_rw.len, subop->reply.sec_rw.version
);
if (fail_fd >= 0)
{
// write operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[subop].peer_fd], &subops[subop]);
}
subop++;
}
}
}
void osd_t::handle_primary_subop(uint64_t opcode, osd_op_t *cur_op, int retval, int expected, uint64_t version)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
if (retval != expected)
{
printf("%s subop failed: retval = %d (expected %d)\n", osd_op_names[opcode], retval, expected);
if (retval == -EPIPE)
{
op_data->epipe++;
}
op_data->errors++;
}
else
{
op_data->done++;
if (opcode == OSD_OP_SECONDARY_READ || opcode == OSD_OP_SECONDARY_WRITE)
{
if (op_data->fact_ver != 0 && op_data->fact_ver != version)
{
throw std::runtime_error("different fact_versions returned from subops: "+std::to_string(version)+" vs "+std::to_string(op_data->fact_ver));
}
op_data->fact_ver = version;
}
}
if ((op_data->errors + op_data->done) >= op_data->n_subops)
{
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
{
throw std::runtime_error("BUG: unknown opcode");
}
}
}
void osd_t::pg_cancel_write_queue(pg_t & pg, object_id oid, int retval)
{
auto st_it = pg.write_queue.find(oid), it = st_it;
while (it != pg.write_queue.end() && it->first == oid)
{
finish_op(it->second, retval);
it++;
}
if (st_it != it)
{
pg.write_queue.erase(st_it, it);
}
}
void osd_t::continue_primary_write(osd_op_t *cur_op)
{
if (!cur_op->op_data && !prepare_primary_rw(cur_op))
@ -631,34 +381,6 @@ resume_7:
}
}
void osd_t::autosync()
{
if (immediate_commit != IMMEDIATE_ALL && !autosync_op)
{
autosync_op = new osd_op_t();
autosync_op->op_type = OSD_OP_IN;
autosync_op->req = {
.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: %ld (%s)\n", -op->reply.hdr.retval, strerror(-op->reply.hdr.retval));
}
delete autosync_op;
autosync_op = NULL;
};
exec_op(autosync_op);
}
}
// Save and clear unstable_writes -> SYNC all -> STABLE all
void osd_t::continue_primary_sync(osd_op_t *cur_op)
{
@ -821,196 +543,3 @@ finish:
goto resume_2;
}
}
void osd_t::submit_primary_del_subops(osd_op_t *cur_op, uint64_t *cur_set, pg_osd_set_state_t *object_state)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
int extra_chunks = 0;
for (auto chunk: object_state->osd_set)
{
if (chunk.osd_num != cur_set[chunk.role])
{
extra_chunks++;
}
}
op_data->n_subops = extra_chunks;
op_data->done = op_data->errors = 0;
if (!extra_chunks)
{
return;
}
osd_op_t *subops = new osd_op_t[extra_chunks];
op_data->subops = subops;
int i = 0;
for (auto chunk: object_state->osd_set)
{
if (chunk.osd_num != cur_set[chunk.role])
{
if (chunk.osd_num == this->osd_num)
{
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_DELETE,
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->retval != 0)
{
// die
throw std::runtime_error("local delete operation failed");
}
handle_primary_subop(OSD_OP_SECONDARY_DELETE, cur_op, subop->retval, 0, 0);
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | chunk.role,
},
// Same version as write
.version = op_data->fact_ver,
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].send_list.push_back(subops[i].req.buf, OSD_PACKET_SIZE);
subops[i].peer_fd = osd_peer_fds.at(chunk.osd_num);
subops[i].req.sec_del = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = OSD_OP_SECONDARY_DELETE,
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | chunk.role,
},
// Same version as write
.version = op_data->fact_ver,
};
subops[i].callback = [cur_op, this](osd_op_t *subop)
{
int fail_fd = subop->reply.hdr.retval != 0 ? subop->peer_fd : 0;
handle_primary_subop(OSD_OP_SECONDARY_DELETE, cur_op, subop->reply.hdr.retval, 0, 0);
if (fail_fd >= 0)
{
// delete operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[i].peer_fd], &subops[i]);
}
i++;
}
}
}
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->unstable_write_osds->size();
osd_op_t *subops = new osd_op_t[n_osds];
op_data->done = op_data->errors = 0;
op_data->n_subops = n_osds;
op_data->subops = subops;
for (int i = 0; i < n_osds; i++)
{
osd_num_t sync_osd = (*(op_data->unstable_write_osds))[i].osd_num;
if (sync_osd == this->osd_num)
{
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_SYNC,
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->retval != 0)
{
// die
throw std::runtime_error("local sync operation failed");
}
handle_primary_subop(OSD_OP_SECONDARY_SYNC, cur_op, subop->retval, 0, 0);
},
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].send_list.push_back(subops[i].req.buf, OSD_PACKET_SIZE);
subops[i].peer_fd = osd_peer_fds.at(sync_osd);
subops[i].req.sec_sync = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = OSD_OP_SECONDARY_SYNC,
},
};
subops[i].callback = [cur_op, this](osd_op_t *subop)
{
int fail_fd = subop->reply.hdr.retval != 0 ? subop->peer_fd : 0;
handle_primary_subop(OSD_OP_SECONDARY_SYNC, cur_op, subop->reply.hdr.retval, 0, 0);
if (fail_fd >= 0)
{
// sync operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[i].peer_fd], &subops[i]);
}
}
}
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();
osd_op_t *subops = new osd_op_t[n_osds];
op_data->done = op_data->errors = 0;
op_data->n_subops = 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)
{
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_STABLE,
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->retval != 0)
{
// die
throw std::runtime_error("local stabilize operation failed");
}
handle_primary_subop(OSD_OP_SECONDARY_STABILIZE, cur_op, subop->retval, 0, 0);
},
.len = (uint32_t)stab_osd.len,
.buf = (void*)(op_data->unstable_writes + stab_osd.start),
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].send_list.push_back(subops[i].req.buf, OSD_PACKET_SIZE);
subops[i].peer_fd = osd_peer_fds.at(stab_osd.osd_num);
subops[i].req.sec_stab = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = OSD_OP_SECONDARY_STABILIZE,
},
.len = (uint64_t)(stab_osd.len * sizeof(obj_ver_id)),
};
subops[i].send_list.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)
{
int fail_fd = subop->reply.hdr.retval != 0 ? subop->peer_fd : 0;
handle_primary_subop(OSD_OP_SECONDARY_STABILIZE, cur_op, subop->reply.hdr.retval, 0, 0);
if (fail_fd >= 0)
{
// sync operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[i].peer_fd], &subops[i]);
}
}
}

35
osd_primary.h

@ -0,0 +1,35 @@
#pragma once
#include "osd.h"
#include "osd_rmw.h"
#define SUBMIT_READ 0
#define SUBMIT_RMW_READ 1
#define SUBMIT_WRITE 2
struct unstable_osd_num_t
{
osd_num_t osd_num;
int start, len;
};
struct osd_primary_op_data_t
{
int st = 0;
pg_num_t pg_num;
object_id oid;
uint64_t target_ver;
uint64_t fact_ver = 0;
int n_subops = 0, done = 0, errors = 0, epipe = 0;
int degraded = 0, pg_size, pg_minsize;
osd_rmw_stripe_t *stripes;
osd_op_t *subops = NULL;
uint64_t *prev_set = NULL;
pg_osd_set_state_t *object_state = NULL;
// for sync. oops, requires freeing
std::vector<unstable_osd_num_t> *unstable_write_osds = NULL;
pg_num_t *dirty_pgs = NULL;
int dirty_pg_count = 0;
obj_ver_id *unstable_writes = NULL;
};

442
osd_primary_subops.cpp

@ -0,0 +1,442 @@
#include "osd_primary.h"
#define SUBMIT_READ 0
#define SUBMIT_RMW_READ 1
#define SUBMIT_WRITE 2
void osd_t::autosync()
{
if (immediate_commit != IMMEDIATE_ALL && !autosync_op)
{
autosync_op = new osd_op_t();
autosync_op->op_type = OSD_OP_IN;
autosync_op->req = {
.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: %ld (%s)\n", -op->reply.hdr.retval, strerror(-op->reply.hdr.retval));
}
delete autosync_op;
autosync_op = NULL;
};
exec_op(autosync_op);
}
}
void osd_t::finish_op(osd_op_t *cur_op, int retval)
{
inflight_ops--;
if (cur_op->op_data && cur_op->op_data->pg_num > 0)
{
auto & pg = pgs[cur_op->op_data->pg_num];
pg.inflight--;
assert(pg.inflight >= 0);
if ((pg.state & PG_STOPPING) && pg.inflight == 0 && !pg.flush_batch)
{
finish_stop_pg(pg);
}
}
if (!cur_op->peer_fd)
{
// 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
auto cl_it = clients.find(cur_op->peer_fd);
if (cl_it != clients.end())
{
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;
outbox_push(cl_it->second, cur_op);
}
else
{
delete cur_op;
}
}
}
void osd_t::submit_primary_subops(int submit_type, int pg_size, const uint64_t* osd_set, osd_op_t *cur_op)
{
bool w = submit_type == SUBMIT_WRITE;
osd_primary_op_data_t *op_data = cur_op->op_data;
osd_rmw_stripe_t *stripes = op_data->stripes;
// Allocate subops
int n_subops = 0, zero_read = -1;
for (int role = 0; role < pg_size; role++)
{
if (osd_set[role] == this->osd_num || osd_set[role] != 0 && zero_read == -1)
{
zero_read = role;
}
if (osd_set[role] != 0 && (w || stripes[role].read_end != 0))
{
n_subops++;
}
}
if (!n_subops && submit_type == SUBMIT_RMW_READ)
{
n_subops = 1;
}
else
{
zero_read = -1;
}
uint64_t op_version = w ? op_data->fact_ver+1 : (submit_type == SUBMIT_RMW_READ ? UINT64_MAX : op_data->target_ver);
osd_op_t *subops = new osd_op_t[n_subops];
op_data->fact_ver = 0;
op_data->done = op_data->errors = 0;
op_data->n_subops = n_subops;
op_data->subops = subops;
int subop = 0;
for (int role = 0; role < pg_size; role++)
{
// We always submit zero-length writes to all replicas, even if the stripe is not modified
if (!(w || stripes[role].read_end != 0 || zero_read == role))
{
continue;
}
osd_num_t role_osd_num = osd_set[role];
if (role_osd_num != 0)
{
if (role_osd_num == this->osd_num)
{
subops[subop].bs_op = new blockstore_op_t({
.opcode = (uint64_t)(w ? BS_OP_WRITE : BS_OP_READ),
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->opcode == BS_OP_WRITE && subop->retval != subop->len)
{
// die
throw std::runtime_error("local write operation failed (retval = "+std::to_string(subop->retval)+")");
}
handle_primary_subop(
subop->opcode == BS_OP_WRITE ? OSD_OP_SECONDARY_WRITE : OSD_OP_SECONDARY_READ,
cur_op, subop->retval, subop->len, subop->version
);
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | role,
},
.version = op_version,
.offset = w ? stripes[role].write_start : stripes[role].read_start,
.len = w ? stripes[role].write_end - stripes[role].write_start : stripes[role].read_end - stripes[role].read_start,
.buf = w ? stripes[role].write_buf : stripes[role].read_buf,
});
bs->enqueue_op(subops[subop].bs_op);
}
else
{
subops[subop].op_type = OSD_OP_OUT;
subops[subop].send_list.push_back(subops[subop].req.buf, OSD_PACKET_SIZE);
subops[subop].peer_fd = this->osd_peer_fds.at(role_osd_num);
subops[subop].req.sec_rw = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = (uint64_t)(w ? OSD_OP_SECONDARY_WRITE : OSD_OP_SECONDARY_READ),
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | role,
},
.version = op_version,
.offset = w ? stripes[role].write_start : stripes[role].read_start,
.len = w ? stripes[role].write_end - stripes[role].write_start : stripes[role].read_end - stripes[role].read_start,
};
subops[subop].buf = w ? stripes[role].write_buf : stripes[role].read_buf;
if (w && stripes[role].write_end > 0)
{
subops[subop].send_list.push_back(stripes[role].write_buf, stripes[role].write_end - stripes[role].write_start);
}
subops[subop].callback = [cur_op, this](osd_op_t *subop)
{
int fail_fd = subop->req.hdr.opcode == OSD_OP_SECONDARY_WRITE &&
subop->reply.hdr.retval != subop->req.sec_rw.len ? subop->peer_fd : -1;
// so it doesn't get freed
subop->buf = NULL;
handle_primary_subop(
subop->req.hdr.opcode, cur_op, subop->reply.hdr.retval,
subop->req.sec_rw.len, subop->reply.sec_rw.version
);
if (fail_fd >= 0)
{
// write operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[subop].peer_fd], &subops[subop]);
}
subop++;
}
}
}
void osd_t::handle_primary_subop(uint64_t opcode, osd_op_t *cur_op, int retval, int expected, uint64_t version)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
if (retval != expected)
{
printf("%s subop failed: retval = %d (expected %d)\n", osd_op_names[opcode], retval, expected);
if (retval == -EPIPE)
{
op_data->epipe++;
}
op_data->errors++;
}
else
{
op_data->done++;
if (opcode == OSD_OP_SECONDARY_READ || opcode == OSD_OP_SECONDARY_WRITE)
{
if (op_data->fact_ver != 0 && op_data->fact_ver != version)
{
throw std::runtime_error("different fact_versions returned from subops: "+std::to_string(version)+" vs "+std::to_string(op_data->fact_ver));
}
op_data->fact_ver = version;
}
}
if ((op_data->errors + op_data->done) >= op_data->n_subops)
{
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
{
throw std::runtime_error("BUG: unknown opcode");
}
}
}
void osd_t::submit_primary_del_subops(osd_op_t *cur_op, uint64_t *cur_set, pg_osd_set_state_t *object_state)
{
osd_primary_op_data_t *op_data = cur_op->op_data;
int extra_chunks = 0;
for (auto chunk: object_state->osd_set)
{
if (chunk.osd_num != cur_set[chunk.role])
{
extra_chunks++;
}
}
op_data->n_subops = extra_chunks;
op_data->done = op_data->errors = 0;
if (!extra_chunks)
{
return;
}
osd_op_t *subops = new osd_op_t[extra_chunks];
op_data->subops = subops;
int i = 0;
for (auto chunk: object_state->osd_set)
{
if (chunk.osd_num != cur_set[chunk.role])
{
if (chunk.osd_num == this->osd_num)
{
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_DELETE,
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->retval != 0)
{
// die
throw std::runtime_error("local delete operation failed");
}
handle_primary_subop(OSD_OP_SECONDARY_DELETE, cur_op, subop->retval, 0, 0);
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | chunk.role,
},
// Same version as write
.version = op_data->fact_ver,
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].send_list.push_back(subops[i].req.buf, OSD_PACKET_SIZE);
subops[i].peer_fd = osd_peer_fds.at(chunk.osd_num);
subops[i].req.sec_del = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = OSD_OP_SECONDARY_DELETE,
},
.oid = {
.inode = op_data->oid.inode,
.stripe = op_data->oid.stripe | chunk.role,
},
// Same version as write
.version = op_data->fact_ver,
};
subops[i].callback = [cur_op, this](osd_op_t *subop)
{
int fail_fd = subop->reply.hdr.retval != 0 ? subop->peer_fd : 0;
handle_primary_subop(OSD_OP_SECONDARY_DELETE, cur_op, subop->reply.hdr.retval, 0, 0);
if (fail_fd >= 0)
{
// delete operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[i].peer_fd], &subops[i]);
}
i++;
}
}
}
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->unstable_write_osds->size();
osd_op_t *subops = new osd_op_t[n_osds];
op_data->done = op_data->errors = 0;
op_data->n_subops = n_osds;
op_data->subops = subops;
for (int i = 0; i < n_osds; i++)
{
osd_num_t sync_osd = (*(op_data->unstable_write_osds))[i].osd_num;
if (sync_osd == this->osd_num)
{
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_SYNC,
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->retval != 0)
{
// die
throw std::runtime_error("local sync operation failed");
}
handle_primary_subop(OSD_OP_SECONDARY_SYNC, cur_op, subop->retval, 0, 0);
},
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].send_list.push_back(subops[i].req.buf, OSD_PACKET_SIZE);
subops[i].peer_fd = osd_peer_fds.at(sync_osd);
subops[i].req.sec_sync = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = OSD_OP_SECONDARY_SYNC,
},
};
subops[i].callback = [cur_op, this](osd_op_t *subop)
{
int fail_fd = subop->reply.hdr.retval != 0 ? subop->peer_fd : 0;
handle_primary_subop(OSD_OP_SECONDARY_SYNC, cur_op, subop->reply.hdr.retval, 0, 0);
if (fail_fd >= 0)
{
// sync operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[i].peer_fd], &subops[i]);
}
}
}
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();
osd_op_t *subops = new osd_op_t[n_osds];
op_data->done = op_data->errors = 0;
op_data->n_subops = 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)
{
subops[i].bs_op = new blockstore_op_t({
.opcode = BS_OP_STABLE,
.callback = [cur_op, this](blockstore_op_t *subop)
{
if (subop->retval != 0)
{
// die
throw std::runtime_error("local stabilize operation failed");
}
handle_primary_subop(OSD_OP_SECONDARY_STABILIZE, cur_op, subop->retval, 0, 0);
},
.len = (uint32_t)stab_osd.len,
.buf = (void*)(op_data->unstable_writes + stab_osd.start),
});
bs->enqueue_op(subops[i].bs_op);
}
else
{
subops[i].op_type = OSD_OP_OUT;
subops[i].send_list.push_back(subops[i].req.buf, OSD_PACKET_SIZE);
subops[i].peer_fd = osd_peer_fds.at(stab_osd.osd_num);
subops[i].req.sec_stab = {
.header = {
.magic = SECONDARY_OSD_OP_MAGIC,
.id = this->next_subop_id++,
.opcode = OSD_OP_SECONDARY_STABILIZE,
},
.len = (uint64_t)(stab_osd.len * sizeof(obj_ver_id)),
};
subops[i].send_list.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)
{
int fail_fd = subop->reply.hdr.retval != 0 ? subop->peer_fd : 0;
handle_primary_subop(OSD_OP_SECONDARY_STABILIZE, cur_op, subop->reply.hdr.retval, 0, 0);
if (fail_fd >= 0)
{
// sync operation failed, drop the connection
stop_client(fail_fd);
}
};
outbox_push(clients[subops[i].peer_fd], &subops[i]);
}
}
}
void osd_t::pg_cancel_write_queue(pg_t & pg, object_id oid, int retval)
{
auto st_it = pg.write_queue.find(oid), it = st_it;
while (it != pg.write_queue.end() && it->first == oid)
{
finish_op(it->second, retval);
it++;
}
if (st_it != it)
{
pg.write_queue.erase(st_it, it);
}
}
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