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96130b1898
wsrep_plugin_init(), wsrep_plugin_deinit(): Remove these dummy functions in order to fix an error that would be flagged by cmake -DWITH_UBSAN=ON when using clang. wsrep_show_ready(), wsrep_show_bf_aborts(): Correct the signature.
466 lines
16 KiB
C++
466 lines
16 KiB
C++
/* Copyright 2008-2023 Codership Oy <http://www.codership.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
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#ifndef WSREP_MYSQLD_H
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#define WSREP_MYSQLD_H
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#include <wsrep.h>
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#ifdef WITH_WSREP
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#include <mysql/plugin.h>
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#include "mysql/service_wsrep.h"
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#include <my_global.h>
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#include <my_pthread.h>
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#include "log.h"
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#include "mysqld.h"
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typedef struct st_mysql_show_var SHOW_VAR;
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#include <sql_priv.h>
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#include "mdl.h"
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#include "sql_table.h"
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#include "wsrep_mysqld_c.h"
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#include "wsrep/provider.hpp"
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#include "wsrep/streaming_context.hpp"
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#include "wsrep_api.h"
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#define WSREP_UNDEFINED_TRX_ID ULONGLONG_MAX
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class THD;
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// Global wsrep parameters
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// MySQL wsrep options
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extern const char* wsrep_provider;
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extern const char* wsrep_provider_options;
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extern const char* wsrep_cluster_name;
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extern const char* wsrep_cluster_address;
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extern const char* wsrep_node_name;
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extern const char* wsrep_node_address;
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extern const char* wsrep_node_incoming_address;
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extern const char* wsrep_data_home_dir;
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extern const char* wsrep_dbug_option;
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extern long wsrep_slave_threads;
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extern int wsrep_slave_count_change;
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extern ulong wsrep_debug;
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extern my_bool wsrep_convert_LOCK_to_trx;
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extern ulong wsrep_retry_autocommit;
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extern my_bool wsrep_auto_increment_control;
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extern my_bool wsrep_drupal_282555_workaround;
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extern my_bool wsrep_incremental_data_collection;
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extern const char* wsrep_start_position;
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extern ulong wsrep_max_ws_size;
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extern ulong wsrep_max_ws_rows;
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extern const char* wsrep_notify_cmd;
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extern my_bool wsrep_certify_nonPK;
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extern long int wsrep_protocol_version;
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extern my_bool wsrep_desync;
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extern ulong wsrep_reject_queries;
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extern my_bool wsrep_recovery;
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extern my_bool wsrep_replicate_myisam;
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extern my_bool wsrep_log_conflicts;
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extern ulong wsrep_mysql_replication_bundle;
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extern my_bool wsrep_load_data_splitting;
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extern my_bool wsrep_restart_slave;
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extern my_bool wsrep_restart_slave_activated;
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extern my_bool wsrep_slave_FK_checks;
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extern my_bool wsrep_slave_UK_checks;
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extern ulong wsrep_trx_fragment_unit;
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extern ulong wsrep_SR_store_type;
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extern uint wsrep_ignore_apply_errors;
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extern ulong wsrep_running_threads;
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extern ulong wsrep_running_applier_threads;
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extern ulong wsrep_running_rollbacker_threads;
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extern bool wsrep_new_cluster;
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extern bool wsrep_gtid_mode;
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extern uint32 wsrep_gtid_domain_id;
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extern std::atomic <bool > wsrep_thread_create_failed;
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enum enum_wsrep_reject_types {
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WSREP_REJECT_NONE, /* nothing rejected */
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WSREP_REJECT_ALL, /* reject all queries, with UNKNOWN_COMMAND error */
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WSREP_REJECT_ALL_KILL /* kill existing connections and reject all queries*/
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};
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enum enum_wsrep_OSU_method {
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WSREP_OSU_TOI,
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WSREP_OSU_RSU,
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WSREP_OSU_NONE,
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};
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enum enum_wsrep_sync_wait {
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WSREP_SYNC_WAIT_NONE= 0x0,
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// select, begin
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WSREP_SYNC_WAIT_BEFORE_READ= 0x1,
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WSREP_SYNC_WAIT_BEFORE_UPDATE_DELETE= 0x2,
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WSREP_SYNC_WAIT_BEFORE_INSERT_REPLACE= 0x4,
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WSREP_SYNC_WAIT_BEFORE_SHOW= 0x8,
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WSREP_SYNC_WAIT_MAX= 0xF
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};
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enum enum_wsrep_ignore_apply_error {
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WSREP_IGNORE_ERRORS_NONE= 0x0,
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WSREP_IGNORE_ERRORS_ON_RECONCILING_DDL= 0x1,
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WSREP_IGNORE_ERRORS_ON_RECONCILING_DML= 0x2,
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WSREP_IGNORE_ERRORS_ON_DDL= 0x4,
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WSREP_IGNORE_ERRORS_MAX= 0x7
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};
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// Streaming Replication
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#define WSREP_FRAG_BYTES 0
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#define WSREP_FRAG_ROWS 1
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#define WSREP_FRAG_STATEMENTS 2
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#define WSREP_SR_STORE_NONE 0
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#define WSREP_SR_STORE_TABLE 1
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extern const char *wsrep_fragment_units[];
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extern const char *wsrep_SR_store_types[];
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// MySQL status variables
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extern my_bool wsrep_connected;
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extern my_bool wsrep_ready;
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extern const char* wsrep_cluster_state_uuid;
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extern long long wsrep_cluster_conf_id;
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extern const char* wsrep_cluster_status;
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extern long wsrep_cluster_size;
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extern long wsrep_local_index;
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extern long long wsrep_local_bf_aborts;
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extern const char* wsrep_provider_name;
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extern const char* wsrep_provider_version;
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extern const char* wsrep_provider_vendor;
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extern char* wsrep_provider_capabilities;
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extern char* wsrep_cluster_capabilities;
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int wsrep_show_status(THD *thd, SHOW_VAR *var, void *buff,
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system_status_var *status_var, enum_var_type scope);
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int wsrep_show_ready(THD *thd, SHOW_VAR *var, void *buff,
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system_status_var *, enum_var_type);
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void wsrep_free_status(THD *thd);
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void wsrep_update_cluster_state_uuid(const char* str);
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/* Filters out --wsrep-new-cluster oprtion from argv[]
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* should be called in the very beginning of main() */
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void wsrep_filter_new_cluster (int* argc, char* argv[]);
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int wsrep_init();
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void wsrep_deinit(bool free_options);
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/* Initialize wsrep thread LOCKs and CONDs */
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void wsrep_thr_init();
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/* Destroy wsrep thread LOCKs and CONDs */
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void wsrep_thr_deinit();
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void wsrep_recover();
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bool wsrep_before_SE(); // initialize wsrep before storage
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// engines (true) or after (false)
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/* wsrep initialization sequence at startup
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* @param before wsrep_before_SE() value */
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void wsrep_init_startup(bool before);
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/* Recover streaming transactions from fragment storage */
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void wsrep_recover_sr_from_storage(THD *);
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// Other wsrep global variables
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extern my_bool wsrep_inited; // whether wsrep is initialized ?
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extern "C" void wsrep_fire_rollbacker(THD *thd);
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extern "C" uint32 wsrep_thd_wsrep_rand(THD *thd);
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extern "C" time_t wsrep_thd_query_start(THD *thd);
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extern void wsrep_close_client_connections(my_bool wait_to_end,
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THD *except_caller_thd= NULL);
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extern "C" query_id_t wsrep_thd_wsrep_last_query_id(THD *thd);
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extern "C" void wsrep_thd_set_wsrep_last_query_id(THD *thd, query_id_t id);
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extern int wsrep_wait_committing_connections_close(int wait_time);
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extern void wsrep_close_applier(THD *thd);
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extern void wsrep_wait_appliers_close(THD *thd);
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extern void wsrep_close_applier_threads(int count);
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/* new defines */
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extern void wsrep_stop_replication(THD *thd);
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extern bool wsrep_start_replication(const char *wsrep_cluster_address);
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extern void wsrep_shutdown_replication();
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extern bool wsrep_must_sync_wait (THD* thd, uint mask= WSREP_SYNC_WAIT_BEFORE_READ);
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extern bool wsrep_sync_wait (THD* thd, uint mask= WSREP_SYNC_WAIT_BEFORE_READ);
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extern bool wsrep_sync_wait (THD* thd, enum enum_sql_command command);
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extern enum wsrep::provider::status
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wsrep_sync_wait_upto (THD* thd, wsrep_gtid_t* upto, int timeout);
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extern int wsrep_check_opts();
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extern void wsrep_prepend_PATH (const char* path);
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extern bool wsrep_append_fk_parent_table(THD* thd, TABLE_LIST* table, wsrep::key_array* keys);
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extern bool wsrep_reload_ssl();
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/* Other global variables */
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extern wsrep_seqno_t wsrep_locked_seqno;
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/* A wrapper function for MySQL log functions. The call will prefix
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the log message with WSREP and forward the result buffer to fun. */
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void WSREP_LOG(void (*fun)(const char* fmt, ...), const char* fmt, ...);
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#define WSREP_SYNC_WAIT(thd_, before_) \
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{ if (WSREP_CLIENT(thd_) && \
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wsrep_sync_wait(thd_, before_)) goto wsrep_error_label; }
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#define WSREP_MYSQL_DB (char *)"mysql"
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#define WSREP_TO_ISOLATION_BEGIN(db_, table_, table_list_) \
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if (WSREP_ON && WSREP(thd) && wsrep_to_isolation_begin(thd, db_, table_, table_list_)) \
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goto wsrep_error_label;
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#define WSREP_TO_ISOLATION_BEGIN_ALTER(db_, table_, table_list_, alter_info_, fk_tables_) \
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if (WSREP(thd) && wsrep_thd_is_local(thd) && \
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wsrep_to_isolation_begin(thd, db_, table_, \
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table_list_, alter_info_, fk_tables_))
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#define WSREP_TO_ISOLATION_END \
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if ((WSREP(thd) && wsrep_thd_is_local_toi(thd)) || \
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wsrep_thd_is_in_rsu(thd)) \
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wsrep_to_isolation_end(thd);
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/*
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Checks if lex->no_write_to_binlog is set for statements that use LOCAL or
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NO_WRITE_TO_BINLOG.
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*/
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#define WSREP_TO_ISOLATION_BEGIN_WRTCHK(db_, table_, table_list_) \
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if (WSREP(thd) && !thd->lex->no_write_to_binlog \
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&& wsrep_to_isolation_begin(thd, db_, table_, table_list_)) \
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goto wsrep_error_label;
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#define WSREP_PROVIDER_EXISTS (WSREP_PROVIDER_EXISTS_)
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static inline bool wsrep_cluster_address_exists()
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{
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if (mysqld_server_started)
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mysql_mutex_assert_owner(&LOCK_global_system_variables);
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return wsrep_cluster_address && wsrep_cluster_address[0];
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}
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extern my_bool wsrep_ready_get();
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extern void wsrep_ready_wait();
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extern mysql_mutex_t LOCK_wsrep_ready;
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extern mysql_cond_t COND_wsrep_ready;
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extern mysql_mutex_t LOCK_wsrep_sst;
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extern mysql_cond_t COND_wsrep_sst;
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extern mysql_mutex_t LOCK_wsrep_sst_init;
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extern mysql_cond_t COND_wsrep_sst_init;
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extern int wsrep_replaying;
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extern mysql_mutex_t LOCK_wsrep_replaying;
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extern mysql_cond_t COND_wsrep_replaying;
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extern mysql_mutex_t LOCK_wsrep_slave_threads;
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extern mysql_cond_t COND_wsrep_slave_threads;
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extern mysql_mutex_t LOCK_wsrep_cluster_config;
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extern mysql_mutex_t LOCK_wsrep_desync;
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extern mysql_mutex_t LOCK_wsrep_SR_pool;
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extern mysql_mutex_t LOCK_wsrep_SR_store;
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extern mysql_mutex_t LOCK_wsrep_config_state;
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extern mysql_mutex_t LOCK_wsrep_group_commit;
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extern mysql_mutex_t LOCK_wsrep_joiner_monitor;
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extern mysql_mutex_t LOCK_wsrep_donor_monitor;
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extern mysql_cond_t COND_wsrep_joiner_monitor;
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extern mysql_cond_t COND_wsrep_donor_monitor;
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extern int wsrep_to_isolation;
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#ifdef GTID_SUPPORT
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extern rpl_sidno wsrep_sidno;
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#endif /* GTID_SUPPORT */
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extern my_bool wsrep_preordered_opt;
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#ifdef HAVE_PSI_INTERFACE
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extern PSI_cond_key key_COND_wsrep_thd;
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extern PSI_mutex_key key_LOCK_wsrep_ready;
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extern PSI_mutex_key key_COND_wsrep_ready;
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extern PSI_mutex_key key_LOCK_wsrep_sst;
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extern PSI_cond_key key_COND_wsrep_sst;
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extern PSI_mutex_key key_LOCK_wsrep_sst_init;
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extern PSI_cond_key key_COND_wsrep_sst_init;
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extern PSI_mutex_key key_LOCK_wsrep_sst_thread;
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extern PSI_cond_key key_COND_wsrep_sst_thread;
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extern PSI_mutex_key key_LOCK_wsrep_replaying;
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extern PSI_cond_key key_COND_wsrep_replaying;
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extern PSI_mutex_key key_LOCK_wsrep_slave_threads;
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extern PSI_cond_key key_COND_wsrep_slave_threads;
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extern PSI_mutex_key key_LOCK_wsrep_cluster_config;
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extern PSI_mutex_key key_LOCK_wsrep_desync;
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extern PSI_mutex_key key_LOCK_wsrep_SR_pool;
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extern PSI_mutex_key key_LOCK_wsrep_SR_store;
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extern PSI_mutex_key key_LOCK_wsrep_global_seqno;
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extern PSI_mutex_key key_LOCK_wsrep_thd_queue;
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extern PSI_cond_key key_COND_wsrep_thd_queue;
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extern PSI_mutex_key key_LOCK_wsrep_joiner_monitor;
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extern PSI_mutex_key key_LOCK_wsrep_donor_monitor;
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extern PSI_file_key key_file_wsrep_gra_log;
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extern PSI_thread_key key_wsrep_sst_joiner;
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extern PSI_thread_key key_wsrep_sst_donor;
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extern PSI_thread_key key_wsrep_rollbacker;
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extern PSI_thread_key key_wsrep_applier;
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extern PSI_thread_key key_wsrep_sst_joiner_monitor;
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extern PSI_thread_key key_wsrep_sst_donor_monitor;
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#endif /* HAVE_PSI_INTERFACE */
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struct TABLE_LIST;
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class Alter_info;
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int wsrep_to_isolation_begin(THD *thd, const char *db_, const char *table_,
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const TABLE_LIST* table_list,
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Alter_info* alter_info= NULL, wsrep::key_array *fk_tables=NULL);
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void wsrep_to_isolation_end(THD *thd);
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bool wsrep_append_SR_keys(THD *thd);
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int wsrep_to_buf_helper(
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THD* thd, const char *query, uint query_len, uchar** buf, size_t* buf_len);
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int wsrep_create_trigger_query(THD *thd, uchar** buf, size_t* buf_len);
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int wsrep_create_event_query(THD *thd, uchar** buf, size_t* buf_len);
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void wsrep_init_sidno(const wsrep_uuid_t&);
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bool wsrep_node_is_donor();
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bool wsrep_node_is_synced();
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void wsrep_init_SR();
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void wsrep_verify_SE_checkpoint(const wsrep_uuid_t& uuid, wsrep_seqno_t seqno);
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int wsrep_replay_from_SR_store(THD*, const wsrep_trx_meta_t&);
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class Log_event;
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int wsrep_ignored_error_code(Log_event* ev, int error);
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int wsrep_must_ignore_error(THD* thd);
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bool wsrep_replicate_GTID(THD* thd);
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int wsrep_append_table_keys(THD* thd,
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TABLE_LIST* first_table,
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TABLE_LIST* table_list,
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Wsrep_service_key_type key_type);
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extern void
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wsrep_handle_mdl_conflict(MDL_context *requestor_ctx,
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MDL_ticket *ticket,
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const MDL_key *key);
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enum wsrep_thread_type {
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WSREP_APPLIER_THREAD=1,
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WSREP_ROLLBACKER_THREAD=2
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};
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typedef void (*wsrep_thd_processor_fun)(THD*, void *);
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class Wsrep_thd_args
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{
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public:
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Wsrep_thd_args(wsrep_thd_processor_fun fun,
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wsrep_thread_type thread_type,
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pthread_t thread_id)
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:
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fun_ (fun),
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thread_type_ (thread_type),
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thread_id_ (thread_id)
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{ }
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wsrep_thd_processor_fun fun() { return fun_; }
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pthread_t* thread_id() {return &thread_id_; }
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enum wsrep_thread_type thread_type() {return thread_type_;}
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private:
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Wsrep_thd_args(const Wsrep_thd_args&);
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Wsrep_thd_args& operator=(const Wsrep_thd_args&);
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wsrep_thd_processor_fun fun_;
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enum wsrep_thread_type thread_type_;
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pthread_t thread_id_;
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};
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void* start_wsrep_THD(void*);
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void wsrep_close_threads(THD *thd);
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bool wsrep_is_show_query(enum enum_sql_command command);
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void wsrep_replay_transaction(THD *thd);
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bool wsrep_create_like_table(THD* thd, TABLE_LIST* table,
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TABLE_LIST* src_table,
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HA_CREATE_INFO *create_info);
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bool wsrep_node_is_donor();
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bool wsrep_node_is_synced();
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/**
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* Check if the wsrep provider (ie the Galera library) is capable of
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* doing streaming replication.
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* @return true if SR capable
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*/
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bool wsrep_provider_is_SR_capable();
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/**
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* Initialize WSREP server instance.
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*
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* @return Zero on success, non-zero on error.
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*/
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int wsrep_init_server();
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/**
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* Initialize WSREP globals. This should be done after server initialization
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* is complete and the server has joined to the cluster.
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*
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*/
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void wsrep_init_globals();
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/**
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* Deinit and release WSREP resources.
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*/
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void wsrep_deinit_server();
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/**
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* Convert streaming fragment unit (WSREP_FRAG_BYTES, WSREP_FRAG_ROWS...)
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* to corresponding wsrep-lib fragment_unit
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*/
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enum wsrep::streaming_context::fragment_unit wsrep_fragment_unit(ulong unit);
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wsrep::key wsrep_prepare_key_for_toi(const char* db, const char* table,
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enum wsrep::key::type type);
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void wsrep_wait_ready(THD *thd);
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void wsrep_ready_set(bool ready_value);
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#else /* !WITH_WSREP */
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/* These macros are needed to compile MariaDB without WSREP support
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* (e.g. embedded) */
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#define WSREP_PROVIDER_EXISTS (0)
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#define wsrep_emulate_bin_log (0)
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#define wsrep_to_isolation (0)
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#define wsrep_before_SE() (0)
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#define wsrep_init_startup(X)
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#define wsrep_check_opts() (0)
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#define wsrep_thr_init() do {} while(0)
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#define wsrep_thr_deinit() do {} while(0)
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#define wsrep_init_globals() do {} while(0)
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#define wsrep_create_appliers(X) do {} while(0)
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#define wsrep_cluster_address_exists() (false)
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#define WSREP_MYSQL_DB (0)
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#define WSREP_TO_ISOLATION_BEGIN(db_, table_, table_list_) do { } while(0)
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#define WSREP_TO_ISOLATION_BEGIN_ALTER(db_, table_, table_list_, alter_info_, fk_tables_)
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#define WSREP_TO_ISOLATION_END
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#define WSREP_TO_ISOLATION_BEGIN_WRTCHK(db_, table_, table_list_)
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#define WSREP_SYNC_WAIT(thd_, before_)
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#endif /* WITH_WSREP */
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#endif /* WSREP_MYSQLD_H */
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