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/*
simple ctdb benchmark for persistent databases
Copyright (C) Amitay Isaacs 2016
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/network.h"
#include "lib/util/debug.h"
#include "lib/util/tevent_unix.h"
#include "client/client.h"
#include "tests/src/test_options.h"
#include "tests/src/cluster_wait.h"
struct transaction_loop_state {
struct tevent_context *ev;
struct ctdb_client_context *client;
struct ctdb_db_context *ctdb_db;
int num_nodes;
int timelimit;
int interactive;
TDB_DATA key;
uint32_t pnn;
struct ctdb_transaction_handle *h;
uint32_t *old_counter, *counter;
struct tevent_req *subreq;
bool done;
};
static void transaction_loop_start(struct tevent_req *subreq);
static void transaction_loop_started(struct tevent_req *subreq);
static void transaction_loop_committed(struct tevent_req *subreq);
static void transaction_loop_each_second(struct tevent_req *subreq);
static bool transaction_loop_check_counters(struct tevent_req *req);
static void transaction_loop_finish(struct tevent_req *subreq);
static struct tevent_req *transaction_loop_send(
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct ctdb_client_context *client,
struct ctdb_db_context *ctdb_db,
int num_nodes, int timelimit, int interactive,
const char *keystr)
{
struct tevent_req *req, *subreq;
struct transaction_loop_state *state;
req = tevent_req_create(mem_ctx, &state,
struct transaction_loop_state);
if (req == NULL) {
return NULL;
}
state->ev = ev;
state->client = client;
state->ctdb_db = ctdb_db;
state->num_nodes = num_nodes;
state->timelimit = timelimit;
state->interactive = interactive;
state->key.dptr = discard_const(keystr);
state->key.dsize = strlen(keystr);
state->pnn = ctdb_client_pnn(client);
state->old_counter = talloc_zero_array(state, uint32_t, num_nodes);
if (tevent_req_nomem(state->old_counter, req)) {
return tevent_req_post(req, ev);
}
state->counter = talloc_zero_array(state, uint32_t, num_nodes);
if (tevent_req_nomem(state->counter, req)) {
return tevent_req_post(req, ev);
}
subreq = cluster_wait_send(state, state->ev, state->client,
state->num_nodes);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, transaction_loop_start, req);
return req;
}
static void transaction_loop_start(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct transaction_loop_state *state = tevent_req_data(
req, struct transaction_loop_state);
bool status;
int ret;
status = cluster_wait_recv(subreq, &ret);
TALLOC_FREE(subreq);
if (! status) {
tevent_req_error(req, ret);
return;
}
subreq = ctdb_transaction_start_send(state, state->ev, state->client,
tevent_timeval_current_ofs(
state->timelimit, 0),
state->ctdb_db, false);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, transaction_loop_started, req);
state->subreq = subreq;
if (ctdb_client_pnn(state->client) == 0) {
subreq = tevent_wakeup_send(state, state->ev,
tevent_timeval_current_ofs(1, 0));
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, transaction_loop_each_second,
req);
}
subreq = tevent_wakeup_send(state, state->ev,
tevent_timeval_current_ofs(
state->timelimit, 0));
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, transaction_loop_finish, req);
}
static void transaction_loop_started(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct transaction_loop_state *state = tevent_req_data(
req, struct transaction_loop_state);
TDB_DATA data;
int ret;
uint32_t *counter;
state->h = ctdb_transaction_start_recv(subreq, &ret);
TALLOC_FREE(subreq);
state->subreq = NULL;
if (state->h == NULL) {
fprintf(stderr, "transaction start failed\n");
tevent_req_error(req, ret);
return;
}
ret = ctdb_transaction_fetch_record(state->h, state->key,
state, &data);
if (ret != 0) {
fprintf(stderr, "transaction fetch record failed\n");
tevent_req_error(req, ret);
return;
}
if (data.dsize < state->num_nodes * sizeof(uint32_t)) {
TALLOC_FREE(data.dptr);
data.dsize = state->num_nodes * sizeof(uint32_t);
data.dptr = (uint8_t *)talloc_zero_array(state, uint32_t,
state->num_nodes);
if (tevent_req_nomem(data.dptr, req)) {
return;
}
}
counter = (uint32_t *)data.dptr;
counter[state->pnn] += 1;
memcpy(state->counter, counter, state->num_nodes * sizeof(uint32_t));
ret = ctdb_transaction_store_record(state->h, state->key, data);
if (ret != 0) {
fprintf(stderr, "transaction store failed\n");
tevent_req_error(req, ret);
return;
}
subreq = ctdb_transaction_commit_send(state, state->ev,
tevent_timeval_current_ofs(
state->timelimit, 0),
state->h);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, transaction_loop_committed, req);
state->subreq = subreq;
}
static void transaction_loop_committed(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct transaction_loop_state *state = tevent_req_data(
req, struct transaction_loop_state);
int ret;
bool status;
status = ctdb_transaction_commit_recv(subreq, &ret);
TALLOC_FREE(subreq);
state->subreq = NULL;
if (! status) {
fprintf(stderr, "transaction commit failed - %s\n",
strerror(ret));
tevent_req_error(req, ret);
return;
}
if (state->pnn == 0) {
if (! transaction_loop_check_counters(req)) {
return;
}
}
if (state->done) {
int i;
printf("Transaction[%u]: ", ctdb_client_pnn(state->client));
for (i=0; i<state->num_nodes; i++) {
printf("%6u ", state->counter[i]);
}
printf("\n");
tevent_req_done(req);
return;
}
subreq = ctdb_transaction_start_send(state, state->ev, state->client,
tevent_timeval_current_ofs(
state->timelimit, 0),
state->ctdb_db, false);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, transaction_loop_started, req);
}
static void transaction_loop_each_second(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct transaction_loop_state *state = tevent_req_data(
req, struct transaction_loop_state);
bool status;
int i;
status = tevent_wakeup_recv(subreq);
TALLOC_FREE(subreq);
if (! status) {
fprintf(stderr, "tevent wakeup failed\n");
tevent_req_error(req, EIO);
return;
}
if (state->interactive == 1) {
printf("Transaction[%u]: ", ctdb_client_pnn(state->client));
for (i=0; i<state->num_nodes; i++) {
printf("%6u ", state->counter[i]);
}
printf("\n");
fflush(stdout);
}
subreq = tevent_wakeup_send(state, state->ev,
tevent_timeval_current_ofs(1, 0));
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, transaction_loop_each_second, req);
}
static bool transaction_loop_check_counters(struct tevent_req *req)
{
struct transaction_loop_state *state = tevent_req_data(
req, struct transaction_loop_state);
int i;
bool monotonous = true;
for (i=0; i<state->num_nodes; i++) {
if (state->counter[i] < state->old_counter[i]) {
fprintf(stderr,
"Counter reduced for node %d: %u -> %u\n",
i, state->old_counter[i], state->counter[i]);
monotonous = false;
break;
}
}
if (monotonous) {
memcpy(state->old_counter, state->counter,
state->num_nodes * sizeof(uint32_t));
}
return monotonous;
}
static void transaction_loop_finish(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct transaction_loop_state *state = tevent_req_data(
req, struct transaction_loop_state);
bool status;
status = tevent_wakeup_recv(subreq);
TALLOC_FREE(subreq);
state->done = true;
if (! status) {
tevent_req_error(req, EIO);
return;
}
}
static bool transaction_loop_recv(struct tevent_req *req, int *perr)
{
int err;
if (tevent_req_is_unix_error(req, &err)) {
if (perr != NULL) {
*perr = err;
}
return false;
}
return true;
}
int main(int argc, const char *argv[])
{
const struct test_options *opts;
TALLOC_CTX *mem_ctx;
struct tevent_context *ev;
struct ctdb_client_context *client;
struct ctdb_db_context *ctdb_db;
struct tevent_req *req;
uint8_t db_flags;
int ret;
bool status;
setup_logging("transaction_loop", DEBUG_STDERR);
status = process_options_database(argc, argv, &opts);
if (! status) {
exit(1);
}
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
fprintf(stderr, "Memory allocation error\n");
exit(1);
}
ev = tevent_context_init(mem_ctx);
if (ev == NULL) {
fprintf(stderr, "Memory allocation error\n");
exit(1);
}
ret = ctdb_client_init(mem_ctx, ev, opts->socket, &client);
if (ret != 0) {
fprintf(stderr, "Failed to initialize client, ret=%d\n", ret);
exit(1);
}
if (! ctdb_recovery_wait(ev, client)) {
fprintf(stderr, "Memory allocation error\n");
exit(1);
}
if (strcmp(opts->dbtype, "persistent") == 0) {
db_flags = CTDB_DB_FLAGS_PERSISTENT;
} else if (strcmp(opts->dbtype, "replicated") == 0) {
db_flags = CTDB_DB_FLAGS_REPLICATED;
} else {
fprintf(stderr, "Database must be persistent or replicated\n");
exit(1);
}
ret = ctdb_attach(ev, client, tevent_timeval_zero(), opts->dbname,
db_flags, &ctdb_db);
if (ret != 0) {
fprintf(stderr, "Failed to attach to persistent DB %s\n",
opts->dbname);
exit(1);
}
req = transaction_loop_send(mem_ctx, ev, client, ctdb_db,
opts->num_nodes, opts->timelimit,
opts->interactive, opts->keystr);
if (req == NULL) {
fprintf(stderr, "Memory allocation error\n");
exit(1);
}
tevent_req_poll(req, ev);
status = transaction_loop_recv(req, &ret);
if (! status) {
fprintf(stderr, "transaction loop test failed, ret=%d\n", ret);
exit(1);
}
talloc_free(mem_ctx);
return 0;
}
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