/
spd_conn.cc
4630 lines (4496 loc) · 147 KB
/
spd_conn.cc
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/* Copyright (C) 2008-2019 Kentoku Shiba
Copyright (C) 2019, 2020, MariaDB Corporation.
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#define MYSQL_SERVER 1
#include <my_global.h>
#include "mysql_version.h"
#include "spd_environ.h"
#if MYSQL_VERSION_ID < 50500
#include "mysql_priv.h"
#include <mysql/plugin.h>
#else
#include "sql_priv.h"
#include "probes_mysql.h"
#include "sql_class.h"
#include "sql_partition.h"
#include "tztime.h"
#endif
#include "spd_err.h"
#include "spd_param.h"
#include "spd_db_include.h"
#include "spd_include.h"
#include "ha_spider.h"
#include "spd_db_conn.h"
#include "spd_trx.h"
#include "spd_conn.h"
#include "spd_table.h"
#include "spd_direct_sql.h"
#include "spd_ping_table.h"
#include "spd_malloc.h"
#include "spd_err.h"
#ifdef SPIDER_HAS_NEXT_THREAD_ID
#define SPIDER_set_next_thread_id(A)
#else
extern ulong *spd_db_att_thread_id;
inline void SPIDER_set_next_thread_id(THD *A)
{
pthread_mutex_lock(&LOCK_thread_count);
A->thread_id = (*spd_db_att_thread_id)++;
pthread_mutex_unlock(&LOCK_thread_count);
}
#endif
extern handlerton *spider_hton_ptr;
extern SPIDER_DBTON spider_dbton[SPIDER_DBTON_SIZE];
pthread_mutex_t spider_conn_id_mutex;
pthread_mutex_t spider_ipport_conn_mutex;
ulonglong spider_conn_id = 1;
#ifndef WITHOUT_SPIDER_BG_SEARCH
extern pthread_attr_t spider_pt_attr;
#ifdef HAVE_PSI_INTERFACE
extern PSI_mutex_key spd_key_mutex_mta_conn;
extern PSI_mutex_key spd_key_mutex_conn_i;
extern PSI_cond_key spd_key_cond_conn_i;
#ifndef WITHOUT_SPIDER_BG_SEARCH
extern PSI_mutex_key spd_key_mutex_bg_conn_chain;
extern PSI_mutex_key spd_key_mutex_bg_conn_sync;
extern PSI_mutex_key spd_key_mutex_bg_conn;
extern PSI_mutex_key spd_key_mutex_bg_job_stack;
extern PSI_mutex_key spd_key_mutex_bg_mon;
extern PSI_cond_key spd_key_cond_bg_conn_sync;
extern PSI_cond_key spd_key_cond_bg_conn;
extern PSI_cond_key spd_key_cond_bg_sts;
extern PSI_cond_key spd_key_cond_bg_sts_sync;
extern PSI_cond_key spd_key_cond_bg_crd;
extern PSI_cond_key spd_key_cond_bg_crd_sync;
extern PSI_cond_key spd_key_cond_bg_mon;
extern PSI_cond_key spd_key_cond_bg_mon_sleep;
extern PSI_thread_key spd_key_thd_bg;
extern PSI_thread_key spd_key_thd_bg_sts;
extern PSI_thread_key spd_key_thd_bg_crd;
extern PSI_thread_key spd_key_thd_bg_mon;
#endif
#endif
#endif
/* UTC time zone for timestamp columns */
extern Time_zone *UTC;
extern sql_mode_t full_sql_mode;
extern sql_mode_t pushdown_sql_mode;
HASH spider_open_connections;
uint spider_open_connections_id;
HASH spider_ipport_conns;
long spider_conn_mutex_id = 0;
const char *spider_open_connections_func_name;
const char *spider_open_connections_file_name;
ulong spider_open_connections_line_no;
pthread_mutex_t spider_conn_mutex;
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
HASH spider_hs_r_conn_hash;
uint spider_hs_r_conn_hash_id;
const char *spider_hs_r_conn_hash_func_name;
const char *spider_hs_r_conn_hash_file_name;
ulong spider_hs_r_conn_hash_line_no;
pthread_mutex_t spider_hs_r_conn_mutex;
HASH spider_hs_w_conn_hash;
uint spider_hs_w_conn_hash_id;
const char *spider_hs_w_conn_hash_func_name;
const char *spider_hs_w_conn_hash_file_name;
ulong spider_hs_w_conn_hash_line_no;
pthread_mutex_t spider_hs_w_conn_mutex;
#endif
/* for spider_open_connections and trx_conn_hash */
uchar *spider_conn_get_key(
SPIDER_CONN *conn,
size_t *length,
my_bool not_used __attribute__ ((unused))
) {
DBUG_ENTER("spider_conn_get_key");
*length = conn->conn_key_length;
DBUG_PRINT("info",("spider conn_kind=%u", conn->conn_kind));
#ifdef DBUG_TRACE
spider_print_keys(conn->conn_key, conn->conn_key_length);
#endif
DBUG_RETURN((uchar*) conn->conn_key);
}
uchar *spider_ipport_conn_get_key(
SPIDER_IP_PORT_CONN *ip_port,
size_t *length,
my_bool not_used __attribute__ ((unused))
)
{
DBUG_ENTER("spider_ipport_conn_get_key");
*length = ip_port->key_len;
DBUG_RETURN((uchar*) ip_port->key);
}
int spider_reset_conn_setted_parameter(
SPIDER_CONN *conn,
THD *thd
) {
DBUG_ENTER("spider_reset_conn_setted_parameter");
conn->autocommit = spider_param_remote_autocommit();
conn->sql_log_off = spider_param_remote_sql_log_off();
conn->wait_timeout = spider_param_remote_wait_timeout(thd);
conn->sql_mode = full_sql_mode + 1;
if (thd && spider_param_remote_time_zone())
{
int tz_length = strlen(spider_param_remote_time_zone());
String tz_str(spider_param_remote_time_zone(), tz_length,
&my_charset_latin1);
conn->time_zone = my_tz_find(thd, &tz_str);
} else
conn->time_zone = NULL;
conn->trx_isolation = spider_param_remote_trx_isolation();
DBUG_PRINT("info",("spider conn->trx_isolation=%d", conn->trx_isolation));
if (spider_param_remote_access_charset())
{
if (!(conn->access_charset =
get_charset_by_csname(spider_param_remote_access_charset(),
MY_CS_PRIMARY, MYF(MY_WME))))
DBUG_RETURN(ER_UNKNOWN_CHARACTER_SET);
} else
conn->access_charset = NULL;
char *default_database = spider_param_remote_default_database();
if (default_database)
{
uint default_database_length = strlen(default_database);
if (conn->default_database.reserve(default_database_length + 1))
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
conn->default_database.q_append(default_database,
default_database_length + 1);
conn->default_database.length(default_database_length);
} else
conn->default_database.length(0);
DBUG_RETURN(0);
}
int spider_free_conn_alloc(
SPIDER_CONN *conn
) {
DBUG_ENTER("spider_free_conn_alloc");
#ifndef WITHOUT_SPIDER_BG_SEARCH
spider_free_conn_thread(conn);
#endif
spider_db_disconnect(conn);
if (conn->db_conn)
{
delete conn->db_conn;
conn->db_conn = NULL;
}
DBUG_ASSERT(!conn->mta_conn_mutex_file_pos.file_name);
pthread_mutex_destroy(&conn->mta_conn_mutex);
conn->default_database.free();
DBUG_RETURN(0);
}
void spider_free_conn_from_trx(
SPIDER_TRX *trx,
SPIDER_CONN *conn,
bool another,
bool trx_free,
int *roop_count
) {
ha_spider *spider;
SPIDER_IP_PORT_CONN *ip_port_conn = conn->ip_port_conn;
DBUG_ENTER("spider_free_conn_from_trx");
spider_conn_clear_queue(conn);
conn->use_for_active_standby = FALSE;
conn->error_mode = 1;
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
{
#endif
if (
trx_free ||
(
(
conn->server_lost ||
spider_param_conn_recycle_mode(trx->thd) != 2
) &&
!conn->opened_handlers
)
) {
conn->thd = NULL;
if (another)
{
ha_spider *next_spider;
#ifdef HASH_UPDATE_WITH_HASH_VALUE
my_hash_delete_with_hash_value(&trx->trx_another_conn_hash,
conn->conn_key_hash_value, (uchar*) conn);
#else
my_hash_delete(&trx->trx_another_conn_hash, (uchar*) conn);
#endif
spider = (ha_spider*) conn->another_ha_first;
while (spider)
{
next_spider = spider->next;
spider_free_tmp_dbton_handler(spider);
spider_free_tmp_dbton_share(spider->share);
spider_free_tmp_share_alloc(spider->share);
spider_free(spider_current_trx, spider->share, MYF(0));
delete spider;
spider = next_spider;
}
conn->another_ha_first = NULL;
conn->another_ha_last = NULL;
} else {
#ifdef HASH_UPDATE_WITH_HASH_VALUE
my_hash_delete_with_hash_value(&trx->trx_conn_hash,
conn->conn_key_hash_value, (uchar*) conn);
#else
my_hash_delete(&trx->trx_conn_hash, (uchar*) conn);
#endif
}
if (
!trx_free &&
!conn->server_lost &&
!conn->queued_connect &&
spider_param_conn_recycle_mode(trx->thd) == 1
) {
/* conn_recycle_mode == 1 */
*conn->conn_key = '0';
conn->casual_read_base_conn = NULL;
if (
conn->quick_target &&
spider_db_free_result((ha_spider *) conn->quick_target, FALSE)
) {
spider_free_conn(conn);
} else {
pthread_mutex_lock(&spider_conn_mutex);
uint old_elements = spider_open_connections.array.max_element;
#ifdef HASH_UPDATE_WITH_HASH_VALUE
if (my_hash_insert_with_hash_value(&spider_open_connections,
conn->conn_key_hash_value, (uchar*) conn))
#else
if (my_hash_insert(&spider_open_connections, (uchar*) conn))
#endif
{
pthread_mutex_unlock(&spider_conn_mutex);
spider_free_conn(conn);
} else {
if (ip_port_conn)
{ /* exists */
if (ip_port_conn->waiting_count)
{
pthread_mutex_lock(&ip_port_conn->mutex);
pthread_cond_signal(&ip_port_conn->cond);
pthread_mutex_unlock(&ip_port_conn->mutex);
}
}
if (spider_open_connections.array.max_element > old_elements)
{
spider_alloc_calc_mem(spider_current_trx,
spider_open_connections,
(spider_open_connections.array.max_element - old_elements) *
spider_open_connections.array.size_of_element);
}
pthread_mutex_unlock(&spider_conn_mutex);
}
}
} else {
/* conn_recycle_mode == 0 */
spider_free_conn(conn);
}
} else if (roop_count)
(*roop_count)++;
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
} else if (conn->conn_kind == SPIDER_CONN_KIND_HS_READ)
{
spider_db_hs_request_buf_reset(conn);
if (
trx_free ||
(
(
conn->server_lost ||
spider_param_hs_r_conn_recycle_mode(trx->thd) != 2
) &&
!conn->opened_handlers
)
) {
conn->thd = NULL;
#ifdef HASH_UPDATE_WITH_HASH_VALUE
my_hash_delete_with_hash_value(&trx->trx_hs_r_conn_hash,
conn->conn_key_hash_value, (uchar*) conn);
#else
my_hash_delete(&trx->trx_hs_r_conn_hash, (uchar*) conn);
#endif
DBUG_ASSERT(conn->opened_handlers ==
conn->db_conn->get_opened_handler_count());
if (conn->db_conn->get_opened_handler_count())
{
conn->db_conn->reset_opened_handler();
}
if (
!trx_free &&
!conn->server_lost &&
!conn->queued_connect &&
spider_param_hs_r_conn_recycle_mode(trx->thd) == 1
) {
/* conn_recycle_mode == 1 */
*conn->conn_key = '0';
pthread_mutex_lock(&spider_hs_r_conn_mutex);
uint old_elements = spider_hs_r_conn_hash.array.max_element;
#ifdef HASH_UPDATE_WITH_HASH_VALUE
if (my_hash_insert_with_hash_value(&spider_hs_r_conn_hash,
conn->conn_key_hash_value, (uchar*) conn))
#else
if (my_hash_insert(&spider_hs_r_conn_hash, (uchar*) conn))
#endif
{
pthread_mutex_unlock(&spider_hs_r_conn_mutex);
spider_free_conn(conn);
} else {
if (spider_hs_r_conn_hash.array.max_element > old_elements)
{
spider_alloc_calc_mem(spider_current_trx,
spider_hs_r_conn_hash,
(spider_hs_r_conn_hash.array.max_element - old_elements) *
spider_hs_r_conn_hash.array.size_of_element);
}
pthread_mutex_unlock(&spider_hs_r_conn_mutex);
}
} else {
/* conn_recycle_mode == 0 */
spider_free_conn(conn);
}
} else if (roop_count)
(*roop_count)++;
} else {
spider_db_hs_request_buf_reset(conn);
if (
trx_free ||
(
(
conn->server_lost ||
spider_param_hs_w_conn_recycle_mode(trx->thd) != 2
) &&
!conn->opened_handlers
)
) {
conn->thd = NULL;
#ifdef HASH_UPDATE_WITH_HASH_VALUE
my_hash_delete_with_hash_value(&trx->trx_hs_w_conn_hash,
conn->conn_key_hash_value, (uchar*) conn);
#else
my_hash_delete(&trx->trx_hs_w_conn_hash, (uchar*) conn);
#endif
DBUG_ASSERT(conn->opened_handlers ==
conn->db_conn->get_opened_handler_count());
if (conn->db_conn->get_opened_handler_count())
{
conn->db_conn->reset_opened_handler();
}
if (
!trx_free &&
!conn->server_lost &&
!conn->queued_connect &&
spider_param_hs_w_conn_recycle_mode(trx->thd) == 1
) {
/* conn_recycle_mode == 1 */
*conn->conn_key = '0';
pthread_mutex_lock(&spider_hs_w_conn_mutex);
uint old_elements = spider_hs_w_conn_hash.array.max_element;
#ifdef HASH_UPDATE_WITH_HASH_VALUE
if (my_hash_insert_with_hash_value(&spider_hs_w_conn_hash,
conn->conn_key_hash_value, (uchar*) conn))
#else
if (my_hash_insert(&spider_hs_w_conn_hash, (uchar*) conn))
#endif
{
pthread_mutex_unlock(&spider_hs_w_conn_mutex);
spider_free_conn(conn);
} else {
if (spider_hs_w_conn_hash.array.max_element > old_elements)
{
spider_alloc_calc_mem(spider_current_trx,
spider_hs_w_conn_hash,
(spider_hs_w_conn_hash.array.max_element - old_elements) *
spider_hs_w_conn_hash.array.size_of_element);
}
pthread_mutex_unlock(&spider_hs_w_conn_mutex);
}
} else {
/* conn_recycle_mode == 0 */
spider_free_conn(conn);
}
} else if (roop_count)
(*roop_count)++;
}
#endif
DBUG_VOID_RETURN;
}
SPIDER_CONN *spider_create_conn(
SPIDER_SHARE *share,
ha_spider *spider,
int link_idx,
int base_link_idx,
uint conn_kind,
int *error_num
) {
int *need_mon;
SPIDER_CONN *conn;
SPIDER_IP_PORT_CONN *ip_port_conn;
char *tmp_name, *tmp_host, *tmp_username, *tmp_password, *tmp_socket;
char *tmp_wrapper, *tmp_ssl_ca, *tmp_ssl_capath, *tmp_ssl_cert;
char *tmp_ssl_cipher, *tmp_ssl_key, *tmp_default_file, *tmp_default_group;
DBUG_ENTER("spider_create_conn");
if (unlikely(!UTC))
{
/* UTC time zone for timestamp columns */
String tz_00_name(STRING_WITH_LEN("+00:00"), &my_charset_bin);
UTC = my_tz_find(current_thd, &tz_00_name);
}
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
if (conn_kind == SPIDER_CONN_KIND_MYSQL)
{
#endif
if (!(conn = (SPIDER_CONN *)
spider_bulk_malloc(spider_current_trx, 18, MYF(MY_WME | MY_ZEROFILL),
&conn, sizeof(*conn),
&tmp_name, share->conn_keys_lengths[link_idx] + 1,
&tmp_host, share->tgt_hosts_lengths[link_idx] + 1,
&tmp_username,
share->tgt_usernames_lengths[link_idx] + 1,
&tmp_password,
share->tgt_passwords_lengths[link_idx] + 1,
&tmp_socket, share->tgt_sockets_lengths[link_idx] + 1,
&tmp_wrapper,
share->tgt_wrappers_lengths[link_idx] + 1,
&tmp_ssl_ca, share->tgt_ssl_cas_lengths[link_idx] + 1,
&tmp_ssl_capath,
share->tgt_ssl_capaths_lengths[link_idx] + 1,
&tmp_ssl_cert,
share->tgt_ssl_certs_lengths[link_idx] + 1,
&tmp_ssl_cipher,
share->tgt_ssl_ciphers_lengths[link_idx] + 1,
&tmp_ssl_key,
share->tgt_ssl_keys_lengths[link_idx] + 1,
&tmp_default_file,
share->tgt_default_files_lengths[link_idx] + 1,
&tmp_default_group,
share->tgt_default_groups_lengths[link_idx] + 1,
&need_mon, sizeof(int),
NullS))
) {
*error_num = HA_ERR_OUT_OF_MEM;
goto error_alloc_conn;
}
conn->default_database.init_calc_mem(75);
conn->conn_key_length = share->conn_keys_lengths[link_idx];
conn->conn_key = tmp_name;
memcpy(conn->conn_key, share->conn_keys[link_idx],
share->conn_keys_lengths[link_idx]);
#ifdef SPIDER_HAS_HASH_VALUE_TYPE
conn->conn_key_hash_value = share->conn_keys_hash_value[link_idx];
#endif
conn->tgt_host_length = share->tgt_hosts_lengths[link_idx];
conn->tgt_host = tmp_host;
memcpy(conn->tgt_host, share->tgt_hosts[link_idx],
share->tgt_hosts_lengths[link_idx]);
conn->tgt_username_length = share->tgt_usernames_lengths[link_idx];
conn->tgt_username = tmp_username;
if (conn->tgt_username_length)
memcpy(conn->tgt_username, share->tgt_usernames[link_idx],
share->tgt_usernames_lengths[link_idx]);
conn->tgt_password_length = share->tgt_passwords_lengths[link_idx];
conn->tgt_password = tmp_password;
if (conn->tgt_password_length)
memcpy(conn->tgt_password, share->tgt_passwords[link_idx],
share->tgt_passwords_lengths[link_idx]);
conn->tgt_socket_length = share->tgt_sockets_lengths[link_idx];
conn->tgt_socket = tmp_socket;
if (conn->tgt_socket_length)
memcpy(conn->tgt_socket, share->tgt_sockets[link_idx],
share->tgt_sockets_lengths[link_idx]);
conn->tgt_wrapper_length = share->tgt_wrappers_lengths[link_idx];
conn->tgt_wrapper = tmp_wrapper;
memcpy(conn->tgt_wrapper, share->tgt_wrappers[link_idx],
share->tgt_wrappers_lengths[link_idx]);
conn->tgt_ssl_ca_length = share->tgt_ssl_cas_lengths[link_idx];
if (conn->tgt_ssl_ca_length)
{
conn->tgt_ssl_ca = tmp_ssl_ca;
memcpy(conn->tgt_ssl_ca, share->tgt_ssl_cas[link_idx],
share->tgt_ssl_cas_lengths[link_idx]);
} else
conn->tgt_ssl_ca = NULL;
conn->tgt_ssl_capath_length = share->tgt_ssl_capaths_lengths[link_idx];
if (conn->tgt_ssl_capath_length)
{
conn->tgt_ssl_capath = tmp_ssl_capath;
memcpy(conn->tgt_ssl_capath, share->tgt_ssl_capaths[link_idx],
share->tgt_ssl_capaths_lengths[link_idx]);
} else
conn->tgt_ssl_capath = NULL;
conn->tgt_ssl_cert_length = share->tgt_ssl_certs_lengths[link_idx];
if (conn->tgt_ssl_cert_length)
{
conn->tgt_ssl_cert = tmp_ssl_cert;
memcpy(conn->tgt_ssl_cert, share->tgt_ssl_certs[link_idx],
share->tgt_ssl_certs_lengths[link_idx]);
} else
conn->tgt_ssl_cert = NULL;
conn->tgt_ssl_cipher_length = share->tgt_ssl_ciphers_lengths[link_idx];
if (conn->tgt_ssl_cipher_length)
{
conn->tgt_ssl_cipher = tmp_ssl_cipher;
memcpy(conn->tgt_ssl_cipher, share->tgt_ssl_ciphers[link_idx],
share->tgt_ssl_ciphers_lengths[link_idx]);
} else
conn->tgt_ssl_cipher = NULL;
conn->tgt_ssl_key_length = share->tgt_ssl_keys_lengths[link_idx];
if (conn->tgt_ssl_key_length)
{
conn->tgt_ssl_key = tmp_ssl_key;
memcpy(conn->tgt_ssl_key, share->tgt_ssl_keys[link_idx],
share->tgt_ssl_keys_lengths[link_idx]);
} else
conn->tgt_ssl_key = NULL;
conn->tgt_default_file_length = share->tgt_default_files_lengths[link_idx];
if (conn->tgt_default_file_length)
{
conn->tgt_default_file = tmp_default_file;
memcpy(conn->tgt_default_file, share->tgt_default_files[link_idx],
share->tgt_default_files_lengths[link_idx]);
} else
conn->tgt_default_file = NULL;
conn->tgt_default_group_length =
share->tgt_default_groups_lengths[link_idx];
if (conn->tgt_default_group_length)
{
conn->tgt_default_group = tmp_default_group;
memcpy(conn->tgt_default_group, share->tgt_default_groups[link_idx],
share->tgt_default_groups_lengths[link_idx]);
} else
conn->tgt_default_group = NULL;
conn->tgt_port = share->tgt_ports[link_idx];
conn->tgt_ssl_vsc = share->tgt_ssl_vscs[link_idx];
conn->dbton_id = share->sql_dbton_ids[link_idx];
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
} else if (conn_kind == SPIDER_CONN_KIND_HS_READ) {
if (!(conn = (SPIDER_CONN *)
spider_bulk_malloc(spider_current_trx, 19, MYF(MY_WME | MY_ZEROFILL),
&conn, sizeof(*conn),
&tmp_name, share->hs_read_conn_keys_lengths[link_idx] + 1,
&tmp_host, share->tgt_hosts_lengths[link_idx] + 1,
&tmp_socket, share->hs_read_socks_lengths[link_idx] + 1,
&tmp_wrapper,
share->tgt_wrappers_lengths[link_idx] + 1,
&need_mon, sizeof(int),
NullS))
) {
*error_num = HA_ERR_OUT_OF_MEM;
goto error_alloc_conn;
}
conn->default_database.init_calc_mem(76);
conn->conn_key_length = share->hs_read_conn_keys_lengths[link_idx];
conn->conn_key = tmp_name;
memcpy(conn->conn_key, share->hs_read_conn_keys[link_idx],
share->hs_read_conn_keys_lengths[link_idx]);
#ifdef SPIDER_HAS_HASH_VALUE_TYPE
conn->conn_key_hash_value = share->hs_read_conn_keys_hash_value[link_idx];
#endif
conn->tgt_host_length = share->tgt_hosts_lengths[link_idx];
conn->tgt_host = tmp_host;
memcpy(conn->tgt_host, share->tgt_hosts[link_idx],
share->tgt_hosts_lengths[link_idx]);
conn->hs_sock_length = share->hs_read_socks_lengths[link_idx];
if (conn->hs_sock_length)
{
conn->hs_sock = tmp_socket;
memcpy(conn->hs_sock, share->hs_read_socks[link_idx],
share->hs_read_socks_lengths[link_idx]);
} else
conn->hs_sock = NULL;
conn->tgt_wrapper_length = share->tgt_wrappers_lengths[link_idx];
conn->tgt_wrapper = tmp_wrapper;
memcpy(conn->tgt_wrapper, share->tgt_wrappers[link_idx],
share->tgt_wrappers_lengths[link_idx]);
conn->hs_port = share->hs_read_ports[link_idx];
conn->dbton_id = share->hs_dbton_ids[link_idx];
} else {
if (!(conn = (SPIDER_CONN *)
spider_bulk_malloc(spider_current_trx, 20, MYF(MY_WME | MY_ZEROFILL),
&conn, sizeof(*conn),
&tmp_name, share->hs_write_conn_keys_lengths[link_idx] + 1,
&tmp_host, share->tgt_hosts_lengths[link_idx] + 1,
&tmp_socket, share->hs_write_socks_lengths[link_idx] + 1,
&tmp_wrapper,
share->tgt_wrappers_lengths[link_idx] + 1,
&need_mon, sizeof(int),
NullS))
) {
*error_num = HA_ERR_OUT_OF_MEM;
goto error_alloc_conn;
}
conn->default_database.init_calc_mem(77);
conn->conn_key_length = share->hs_write_conn_keys_lengths[link_idx];
conn->conn_key = tmp_name;
memcpy(conn->conn_key, share->hs_write_conn_keys[link_idx],
share->hs_write_conn_keys_lengths[link_idx]);
#ifdef SPIDER_HAS_HASH_VALUE_TYPE
conn->conn_key_hash_value = share->hs_write_conn_keys_hash_value[link_idx];
#endif
conn->tgt_host_length = share->tgt_hosts_lengths[link_idx];
conn->tgt_host = tmp_host;
memcpy(conn->tgt_host, share->tgt_hosts[link_idx],
share->tgt_hosts_lengths[link_idx]);
conn->hs_sock_length = share->hs_write_socks_lengths[link_idx];
if (conn->hs_sock_length)
{
conn->hs_sock = tmp_socket;
memcpy(conn->hs_sock, share->hs_write_socks[link_idx],
share->hs_write_socks_lengths[link_idx]);
} else
conn->hs_sock = NULL;
conn->tgt_wrapper_length = share->tgt_wrappers_lengths[link_idx];
conn->tgt_wrapper = tmp_wrapper;
memcpy(conn->tgt_wrapper, share->tgt_wrappers[link_idx],
share->tgt_wrappers_lengths[link_idx]);
conn->hs_port = share->hs_write_ports[link_idx];
conn->dbton_id = share->hs_dbton_ids[link_idx];
}
#endif
if (conn->dbton_id == SPIDER_DBTON_SIZE)
{
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
if (conn->conn_kind == SPIDER_CONN_KIND_MYSQL)
{
#endif
my_printf_error(
ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM,
ER_SPIDER_SQL_WRAPPER_IS_INVALID_STR,
MYF(0), conn->tgt_wrapper);
*error_num = ER_SPIDER_SQL_WRAPPER_IS_INVALID_NUM;
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
} else {
my_printf_error(
ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM,
ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_STR,
MYF(0), conn->tgt_wrapper);
*error_num = ER_SPIDER_NOSQL_WRAPPER_IS_INVALID_NUM;
}
#endif
goto error_invalid_wrapper;
}
if (!(conn->db_conn = spider_dbton[conn->dbton_id].create_db_conn(conn)))
{
*error_num = HA_ERR_OUT_OF_MEM;
goto error_db_conn_create;
}
if ((*error_num = conn->db_conn->init()))
{
goto error_db_conn_init;
}
conn->join_trx = 0;
conn->thd = NULL;
conn->table_lock = 0;
conn->semi_trx_isolation = -2;
conn->semi_trx_isolation_chk = FALSE;
conn->semi_trx_chk = FALSE;
conn->link_idx = base_link_idx;
conn->conn_kind = conn_kind;
conn->conn_need_mon = need_mon;
if (spider)
conn->need_mon = &spider->need_mons[base_link_idx];
else
conn->need_mon = need_mon;
#if MYSQL_VERSION_ID < 50500
if (pthread_mutex_init(&conn->mta_conn_mutex, MY_MUTEX_INIT_FAST))
#else
if (mysql_mutex_init(spd_key_mutex_mta_conn, &conn->mta_conn_mutex,
MY_MUTEX_INIT_FAST))
#endif
{
*error_num = HA_ERR_OUT_OF_MEM;
goto error_mta_conn_mutex_init;
}
spider_conn_queue_connect(share, conn, link_idx);
conn->ping_time = (time_t) time((time_t*) 0);
conn->connect_error_time = conn->ping_time;
pthread_mutex_lock(&spider_conn_id_mutex);
conn->conn_id = spider_conn_id;
++spider_conn_id;
pthread_mutex_unlock(&spider_conn_id_mutex);
pthread_mutex_lock(&spider_ipport_conn_mutex);
#ifdef SPIDER_HAS_HASH_VALUE_TYPE
if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search_using_hash_value(
&spider_ipport_conns, conn->conn_key_hash_value,
(uchar*)conn->conn_key, conn->conn_key_length)))
#else
if ((ip_port_conn = (SPIDER_IP_PORT_CONN*) my_hash_search(
&spider_ipport_conns, (uchar*)conn->conn_key, conn->conn_key_length)))
#endif
{ /* exists, +1 */
pthread_mutex_unlock(&spider_ipport_conn_mutex);
pthread_mutex_lock(&ip_port_conn->mutex);
if (spider_param_max_connections())
{ /* enable conncetion pool */
if (ip_port_conn->ip_port_count >= spider_param_max_connections())
{ /* bigger than the max num of connections, free conn and return NULL */
pthread_mutex_unlock(&ip_port_conn->mutex);
*error_num = ER_SPIDER_CON_COUNT_ERROR;
goto error_too_many_ipport_count;
}
}
ip_port_conn->ip_port_count++;
pthread_mutex_unlock(&ip_port_conn->mutex);
}
else
{// do not exist
ip_port_conn = spider_create_ipport_conn(conn);
if (!ip_port_conn) {
/* failed, always do not effect 'create conn' */
pthread_mutex_unlock(&spider_ipport_conn_mutex);
DBUG_RETURN(conn);
}
if (my_hash_insert(&spider_ipport_conns, (uchar *)ip_port_conn)) {
/* insert failed, always do not effect 'create conn' */
pthread_mutex_unlock(&spider_ipport_conn_mutex);
DBUG_RETURN(conn);
}
pthread_mutex_unlock(&spider_ipport_conn_mutex);
}
conn->ip_port_conn = ip_port_conn;
DBUG_RETURN(conn);
/*
error_init_lock_table_hash:
DBUG_ASSERT(!conn->mta_conn_mutex_file_pos.file_name);
pthread_mutex_destroy(&conn->mta_conn_mutex);
*/
error_too_many_ipport_count:
error_mta_conn_mutex_init:
error_db_conn_init:
delete conn->db_conn;
error_db_conn_create:
error_invalid_wrapper:
spider_free(spider_current_trx, conn, MYF(0));
error_alloc_conn:
DBUG_RETURN(NULL);
}
SPIDER_CONN *spider_get_conn(
SPIDER_SHARE *share,
int link_idx,
char *conn_key,
SPIDER_TRX *trx,
ha_spider *spider,
bool another,
bool thd_chg,
uint conn_kind,
int *error_num
) {
SPIDER_CONN *conn = NULL;
int base_link_idx = link_idx;
DBUG_ENTER("spider_get_conn");
DBUG_PRINT("info",("spider conn_kind=%u", conn_kind));
if (spider)
link_idx = spider->conn_link_idx[base_link_idx];
DBUG_PRINT("info",("spider link_idx=%u", link_idx));
DBUG_PRINT("info",("spider base_link_idx=%u", base_link_idx));
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
if (conn_kind == SPIDER_CONN_KIND_MYSQL)
{
#endif
#ifdef DBUG_TRACE
spider_print_keys(conn_key, share->conn_keys_lengths[link_idx]);
#endif
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
} else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
{
conn_key = share->hs_read_conn_keys[link_idx];
#ifdef DBUG_TRACE
spider_print_keys(conn_key, share->hs_read_conn_keys_lengths[link_idx]);
#endif
} else {
conn_key = share->hs_write_conn_keys[link_idx];
#ifdef DBUG_TRACE
spider_print_keys(conn_key, share->hs_write_conn_keys_lengths[link_idx]);
#endif
}
#endif
#ifdef SPIDER_HAS_HASH_VALUE_TYPE
if (
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
(conn_kind == SPIDER_CONN_KIND_MYSQL &&
(
#endif
(another &&
!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
&trx->trx_another_conn_hash,
share->conn_keys_hash_value[link_idx],
(uchar*) conn_key, share->conn_keys_lengths[link_idx]))) ||
(!another &&
!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
&trx->trx_conn_hash,
share->conn_keys_hash_value[link_idx],
(uchar*) conn_key, share->conn_keys_lengths[link_idx])))
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
)
) ||
(conn_kind == SPIDER_CONN_KIND_HS_READ &&
!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
&trx->trx_hs_r_conn_hash,
share->hs_read_conn_keys_hash_value[link_idx],
(uchar*) conn_key, share->hs_read_conn_keys_lengths[link_idx]))
) ||
(conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
&trx->trx_hs_w_conn_hash,
share->hs_write_conn_keys_hash_value[link_idx],
(uchar*) conn_key, share->hs_write_conn_keys_lengths[link_idx]))
)
#endif
)
#else
if (
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
(conn_kind == SPIDER_CONN_KIND_MYSQL &&
(
#endif
(another &&
!(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_another_conn_hash,
(uchar*) conn_key, share->conn_keys_lengths[link_idx]))) ||
(!another &&
!(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_conn_hash,
(uchar*) conn_key, share->conn_keys_lengths[link_idx])))
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
)
) ||
(conn_kind == SPIDER_CONN_KIND_HS_READ &&
!(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_hs_r_conn_hash,
(uchar*) conn_key, share->hs_read_conn_keys_lengths[link_idx]))
) ||
(conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
!(conn = (SPIDER_CONN*) my_hash_search(&trx->trx_hs_w_conn_hash,
(uchar*) conn_key, share->hs_write_conn_keys_lengths[link_idx]))
)
#endif
)
#endif
{
if (
!trx->thd ||
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
(conn_kind == SPIDER_CONN_KIND_MYSQL &&
#endif
(
(spider_param_conn_recycle_mode(trx->thd) & 1) ||
spider_param_conn_recycle_strict(trx->thd)
)
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
) ||
(conn_kind == SPIDER_CONN_KIND_HS_READ &&
(
(spider_param_hs_r_conn_recycle_mode(trx->thd) & 1) ||
spider_param_hs_r_conn_recycle_strict(trx->thd)
)
) ||
(conn_kind == SPIDER_CONN_KIND_HS_WRITE &&
(
(spider_param_hs_w_conn_recycle_mode(trx->thd) & 1) ||
spider_param_hs_w_conn_recycle_strict(trx->thd)
)
)
#endif
) {
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
if (conn_kind == SPIDER_CONN_KIND_MYSQL)
{
#endif
pthread_mutex_lock(&spider_conn_mutex);
#ifdef SPIDER_HAS_HASH_VALUE_TYPE
if (!(conn = (SPIDER_CONN*) my_hash_search_using_hash_value(
&spider_open_connections, share->conn_keys_hash_value[link_idx],
(uchar*) share->conn_keys[link_idx],
share->conn_keys_lengths[link_idx])))
#else
if (!(conn = (SPIDER_CONN*) my_hash_search(&spider_open_connections,
(uchar*) share->conn_keys[link_idx],
share->conn_keys_lengths[link_idx])))
#endif
{
pthread_mutex_unlock(&spider_conn_mutex);
if (spider_param_max_connections())
{ /* enable connection pool */
conn = spider_get_conn_from_idle_connection(share, link_idx, conn_key, spider, conn_kind, base_link_idx, error_num);
/* failed get conn, goto error */
if (!conn)
goto error;
}
else
{ /* did not enable conncetion pool , create_conn */
DBUG_PRINT("info",("spider create new conn"));
if (!(conn = spider_create_conn(share, spider, link_idx,
base_link_idx, conn_kind, error_num)))
goto error;
*conn->conn_key = *conn_key;
if (spider)
{
spider->conns[base_link_idx] = conn;
if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
conn->use_for_active_standby = TRUE;
}
}
} else {
#ifdef HASH_UPDATE_WITH_HASH_VALUE
my_hash_delete_with_hash_value(&spider_open_connections,
conn->conn_key_hash_value, (uchar*) conn);
#else
my_hash_delete(&spider_open_connections, (uchar*) conn);
#endif
pthread_mutex_unlock(&spider_conn_mutex);
DBUG_PRINT("info",("spider get global conn"));
if (spider)
{
spider->conns[base_link_idx] = conn;
if (spider_bit_is_set(spider->conn_can_fo, base_link_idx))
conn->use_for_active_standby = TRUE;
}
}
#if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
} else if (conn_kind == SPIDER_CONN_KIND_HS_READ)
{
pthread_mutex_lock(&spider_hs_r_conn_mutex);
#ifdef SPIDER_HAS_HASH_VALUE_TYPE