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xtrabackup.cc
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xtrabackup.cc
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/******************************************************
MariaBackup: hot backup tool for InnoDB
(c) 2009-2017 Percona LLC and/or its affiliates
Originally Created 3/3/2009 Yasufumi Kinoshita
Written by Alexey Kopytov, Aleksandr Kuzminsky, Stewart Smith, Vadim Tkachenko,
Yasufumi Kinoshita, Ignacio Nin and Baron Schwartz.
(c) 2017, 2019, MariaDB Corporation.
Portions written by Marko Mäkelä.
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
*******************************************************
This file incorporates work covered by the following copyright and
permission notice:
Copyright (c) 2000, 2011, MySQL AB & Innobase Oy. All Rights Reserved.
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 XTRABACKUP_TARGET_IS_PLUGIN
#include <my_global.h>
#include <my_config.h>
#include <unireg.h>
#include <mysql_version.h>
#include <my_base.h>
#include <my_getopt.h>
#include <mysql_com.h>
#include <my_default.h>
#include <mysqld.h>
#include <fcntl.h>
#include <string.h>
#ifdef __linux__
# include <sys/prctl.h>
#include <sys/resource.h>
#endif
#include <btr0sea.h>
#include <dict0priv.h>
#include <lock0lock.h>
#include <log0recv.h>
#include <log0crypt.h>
#include <row0mysql.h>
#include <row0quiesce.h>
#include <srv0start.h>
#include "trx0sys.h"
#include <buf0dblwr.h>
#include <list>
#include <sstream>
#include <set>
#include <mysql.h>
#define G_PTR uchar*
#include "common.h"
#include "datasink.h"
#include "xb_regex.h"
#include "fil_cur.h"
#include "write_filt.h"
#include "xtrabackup.h"
#include "ds_buffer.h"
#include "ds_tmpfile.h"
#include "xbstream.h"
#include "changed_page_bitmap.h"
#include "read_filt.h"
#include "backup_wsrep.h"
#include "innobackupex.h"
#include "backup_mysql.h"
#include "backup_copy.h"
#include "backup_mysql.h"
#include "encryption_plugin.h"
#include <sql_plugin.h>
#include <srv0srv.h>
#include <crc_glue.h>
#include <log.h>
int sys_var_init();
/* === xtrabackup specific options === */
char xtrabackup_real_target_dir[FN_REFLEN] = "./xtrabackup_backupfiles/";
char *xtrabackup_target_dir= xtrabackup_real_target_dir;
static my_bool xtrabackup_version;
static my_bool verbose;
my_bool xtrabackup_backup;
my_bool xtrabackup_prepare;
my_bool xtrabackup_copy_back;
my_bool xtrabackup_move_back;
my_bool xtrabackup_decrypt_decompress;
my_bool xtrabackup_print_param;
my_bool xtrabackup_export;
longlong xtrabackup_use_memory;
uint opt_protocol;
long xtrabackup_throttle; /* 0:unlimited */
static lint io_ticket;
static os_event_t wait_throttle;
static os_event_t log_copying_stop;
char *xtrabackup_incremental;
lsn_t incremental_lsn;
lsn_t incremental_to_lsn;
lsn_t incremental_last_lsn;
xb_page_bitmap *changed_page_bitmap;
char *xtrabackup_incremental_basedir; /* for --backup */
char *xtrabackup_extra_lsndir; /* for --backup with --extra-lsndir */
char *xtrabackup_incremental_dir; /* for --prepare */
char xtrabackup_real_incremental_basedir[FN_REFLEN];
char xtrabackup_real_extra_lsndir[FN_REFLEN];
char xtrabackup_real_incremental_dir[FN_REFLEN];
char *xtrabackup_tmpdir;
char *xtrabackup_tables;
char *xtrabackup_tables_file;
char *xtrabackup_tables_exclude;
char *xb_rocksdb_datadir;
my_bool xb_backup_rocksdb = 1;
typedef std::list<regex_t> regex_list_t;
static regex_list_t regex_include_list;
static regex_list_t regex_exclude_list;
static hash_table_t* tables_include_hash = NULL;
static hash_table_t* tables_exclude_hash = NULL;
char *xtrabackup_databases = NULL;
char *xtrabackup_databases_file = NULL;
char *xtrabackup_databases_exclude = NULL;
static hash_table_t* databases_include_hash = NULL;
static hash_table_t* databases_exclude_hash = NULL;
static hash_table_t* inc_dir_tables_hash;
struct xb_filter_entry_struct{
char* name;
ibool has_tables;
hash_node_t name_hash;
};
typedef struct xb_filter_entry_struct xb_filter_entry_t;
lsn_t checkpoint_lsn_start;
lsn_t checkpoint_no_start;
static lsn_t log_copy_scanned_lsn;
static bool log_copying_running;
static bool io_watching_thread_running;
int xtrabackup_parallel;
char *xtrabackup_stream_str = NULL;
xb_stream_fmt_t xtrabackup_stream_fmt = XB_STREAM_FMT_NONE;
ibool xtrabackup_stream = FALSE;
const char *xtrabackup_compress_alg = NULL;
uint xtrabackup_compress = FALSE;
uint xtrabackup_compress_threads;
ulonglong xtrabackup_compress_chunk_size = 0;
/* sleep interval beetween log copy iterations in log copying thread
in milliseconds (default is 1 second) */
ulint xtrabackup_log_copy_interval = 1000;
static ulong max_buf_pool_modified_pct;
/* Ignored option (--log) for MySQL option compatibility */
static char* log_ignored_opt;
extern my_bool opt_use_ssl;
extern char *opt_tls_version;
my_bool opt_ssl_verify_server_cert;
my_bool opt_extended_validation;
my_bool opt_encrypted_backup;
/* === metadata of backup === */
#define XTRABACKUP_METADATA_FILENAME "xtrabackup_checkpoints"
char metadata_type[30] = ""; /*[full-backuped|log-applied|incremental]*/
static lsn_t metadata_from_lsn;
lsn_t metadata_to_lsn;
static lsn_t metadata_last_lsn;
static ds_file_t* dst_log_file;
static char mysql_data_home_buff[2];
const char *defaults_group = "mysqld";
/* === static parameters in ha_innodb.cc */
#define HA_INNOBASE_ROWS_IN_TABLE 10000 /* to get optimization right */
#define HA_INNOBASE_RANGE_COUNT 100
/* The default values for the following, type long or longlong, start-up
parameters are declared in mysqld.cc: */
long innobase_buffer_pool_awe_mem_mb = 0;
long innobase_file_io_threads = 4;
long innobase_read_io_threads = 4;
long innobase_write_io_threads = 4;
longlong innobase_page_size = (1LL << 14); /* 16KB */
char* innobase_buffer_pool_filename = NULL;
/* The default values for the following char* start-up parameters
are determined in innobase_init below: */
static char* innobase_ignored_opt;
char* innobase_data_home_dir;
char* innobase_data_file_path;
my_bool innobase_use_doublewrite;
my_bool innobase_file_per_table;
my_bool innobase_locks_unsafe_for_binlog;
my_bool innobase_rollback_on_timeout;
my_bool innobase_create_status_file;
/* The following counter is used to convey information to InnoDB
about server activity: in selects it is not sensible to call
srv_active_wake_master_thread after each fetch or search, we only do
it every INNOBASE_WAKE_INTERVAL'th step. */
#define INNOBASE_WAKE_INTERVAL 32
ulong innobase_active_counter = 0;
#ifndef _WIN32
static char *xtrabackup_debug_sync = NULL;
#endif
my_bool xtrabackup_incremental_force_scan = FALSE;
/* The flushed lsn which is read from data files */
lsn_t flushed_lsn= 0;
ulong xb_open_files_limit= 0;
char *xb_plugin_dir;
char *xb_plugin_load;
my_bool xb_close_files;
/* Datasinks */
ds_ctxt_t *ds_data = NULL;
ds_ctxt_t *ds_meta = NULL;
ds_ctxt_t *ds_redo = NULL;
static bool innobackupex_mode = false;
/* String buffer used by --print-param to accumulate server options as they are
parsed from the defaults file */
static std::ostringstream print_param_str;
/* Set of specified parameters */
std::set<std::string> param_set;
static ulonglong global_max_value;
extern "C" sig_handler handle_fatal_signal(int sig);
extern LOGGER logger;
my_bool opt_galera_info = FALSE;
my_bool opt_slave_info = FALSE;
my_bool opt_no_lock = FALSE;
my_bool opt_safe_slave_backup = FALSE;
my_bool opt_rsync = FALSE;
my_bool opt_force_non_empty_dirs = FALSE;
my_bool opt_noversioncheck = FALSE;
my_bool opt_no_backup_locks = FALSE;
my_bool opt_decompress = FALSE;
my_bool opt_remove_original;
my_bool opt_lock_ddl_per_table = FALSE;
static my_bool opt_check_privileges;
extern const char *innodb_checksum_algorithm_names[];
extern TYPELIB innodb_checksum_algorithm_typelib;
extern const char *innodb_flush_method_names[];
extern TYPELIB innodb_flush_method_typelib;
static const char *binlog_info_values[] = {"off", "lockless", "on", "auto",
NullS};
static TYPELIB binlog_info_typelib = {array_elements(binlog_info_values)-1, "",
binlog_info_values, NULL};
ulong opt_binlog_info;
char *opt_incremental_history_name;
char *opt_incremental_history_uuid;
char *opt_user;
char *opt_password;
char *opt_host;
char *opt_defaults_group;
char *opt_socket;
uint opt_port;
char *opt_log_bin;
const char *query_type_names[] = { "ALL", "UPDATE", "SELECT", NullS};
TYPELIB query_type_typelib= {array_elements(query_type_names) - 1, "",
query_type_names, NULL};
ulong opt_lock_wait_query_type;
ulong opt_kill_long_query_type;
uint opt_kill_long_queries_timeout = 0;
uint opt_lock_wait_timeout = 0;
uint opt_lock_wait_threshold = 0;
uint opt_debug_sleep_before_unlock = 0;
uint opt_safe_slave_backup_timeout = 0;
const char *opt_history = NULL;
char mariabackup_exe[FN_REFLEN];
char orig_argv1[FN_REFLEN];
pthread_mutex_t backup_mutex;
pthread_cond_t scanned_lsn_cond;
typedef std::map<space_id_t,std::string> space_id_to_name_t;
struct ddl_tracker_t {
/** Tablspaces with their ID and name, as they were copied to backup.*/
space_id_to_name_t tables_in_backup;
/** Tablespaces for that optimized DDL without redo log was found.*/
std::set<space_id_t> optimized_ddl;
/** Drop operations found in redo log. */
std::set<space_id_t> drops;
/* For DDL operation found in redo log, */
space_id_to_name_t id_to_name;
};
static ddl_tracker_t ddl_tracker;
/* Simple datasink creation tracking...add datasinks in the reverse order you
want them destroyed. */
#define XTRABACKUP_MAX_DATASINKS 10
static ds_ctxt_t *datasinks[XTRABACKUP_MAX_DATASINKS];
static uint actual_datasinks = 0;
static inline
void
xtrabackup_add_datasink(ds_ctxt_t *ds)
{
xb_ad(actual_datasinks < XTRABACKUP_MAX_DATASINKS);
datasinks[actual_datasinks] = ds; actual_datasinks++;
}
typedef void (*process_single_tablespace_func_t)(const char *dirname, const char *filname, bool is_remote);
static dberr_t enumerate_ibd_files(process_single_tablespace_func_t callback);
/* ======== Datafiles iterator ======== */
struct datafiles_iter_t {
fil_space_t *space;
fil_node_t *node;
ibool started;
pthread_mutex_t mutex;
};
/* ======== Datafiles iterator ======== */
static
datafiles_iter_t *
datafiles_iter_new()
{
datafiles_iter_t *it;
it = static_cast<datafiles_iter_t *>(malloc(sizeof(datafiles_iter_t)));
pthread_mutex_init(&it->mutex, NULL);
it->space = NULL;
it->node = NULL;
it->started = FALSE;
return it;
}
static
fil_node_t *
datafiles_iter_next(datafiles_iter_t *it)
{
fil_node_t *new_node;
pthread_mutex_lock(&it->mutex);
if (it->node == NULL) {
if (it->started)
goto end;
it->started = TRUE;
} else {
it->node = UT_LIST_GET_NEXT(chain, it->node);
if (it->node != NULL)
goto end;
}
it->space = (it->space == NULL) ?
UT_LIST_GET_FIRST(fil_system.space_list) :
UT_LIST_GET_NEXT(space_list, it->space);
while (it->space != NULL &&
(it->space->purpose != FIL_TYPE_TABLESPACE ||
UT_LIST_GET_LEN(it->space->chain) == 0))
it->space = UT_LIST_GET_NEXT(space_list, it->space);
if (it->space == NULL)
goto end;
it->node = UT_LIST_GET_FIRST(it->space->chain);
end:
new_node = it->node;
pthread_mutex_unlock(&it->mutex);
return new_node;
}
static
void
datafiles_iter_free(datafiles_iter_t *it)
{
pthread_mutex_destroy(&it->mutex);
free(it);
}
#ifndef DBUG_OFF
struct dbug_thread_param_t
{
MYSQL *con;
const char *query;
int expect_err;
int expect_errno;
os_event_t done_event;
};
/* Thread procedure used in dbug_start_query_thread. */
extern "C"
os_thread_ret_t
DECLARE_THREAD(dbug_execute_in_new_connection)(void *arg)
{
mysql_thread_init();
dbug_thread_param_t *par= (dbug_thread_param_t *)arg;
int err = mysql_query(par->con, par->query);
int err_no = mysql_errno(par->con);
if(par->expect_err != err)
{
msg("FATAL: dbug_execute_in_new_connection : mysql_query '%s' returns %d, instead of expected %d",
par->query, err, par->expect_err);
_exit(1);
}
if (err && par->expect_errno && par->expect_errno != err_no)
{
msg("FATAL: dbug_execute_in_new_connection: mysql_query '%s' returns mysql_errno %d, instead of expected %d",
par->query, err_no, par->expect_errno);
_exit(1);
}
mysql_close(par->con);
mysql_thread_end();
os_event_t done = par->done_event;
delete par;
os_event_set(done);
os_thread_exit();
return os_thread_ret_t(0);
}
/*
Execute query from a new connection, in own thread.
@param query - query to be executed
@param wait_state - if not NULL, wait until query from new connection
reaches this state (value of column State in I_S.PROCESSLIST)
@param expected_err - if 0, query is supposed to finish successfully,
otherwise query should return error.
@param expected_errno - if not 0, and query finished with error,
expected mysql_errno()
*/
static os_event_t dbug_start_query_thread(
const char *query,
const char *wait_state,
int expected_err,
int expected_errno)
{
dbug_thread_param_t *par = new dbug_thread_param_t;
par->query = query;
par->expect_err = expected_err;
par->expect_errno = expected_errno;
par->done_event = os_event_create(0);
par->con = xb_mysql_connect();
os_thread_create(dbug_execute_in_new_connection, par, 0);
if (!wait_state)
return par->done_event;
char q[256];
snprintf(q, sizeof(q),
"SELECT 1 FROM INFORMATION_SCHEMA.PROCESSLIST where ID=%lu"
" AND Command='Query' AND State='%s'",
mysql_thread_id(par->con), wait_state);
for (;;) {
MYSQL_RES *result = xb_mysql_query(mysql_connection,q, true, true);
bool exists = mysql_fetch_row(result) != NULL;
mysql_free_result(result);
if (exists) {
goto end;
}
msg("Waiting for query '%s' on connection %lu to "
" reach state '%s'", query, mysql_thread_id(par->con),
wait_state);
my_sleep(1000);
}
end:
msg("query '%s' on connection %lu reached state '%s'", query,
mysql_thread_id(par->con), wait_state);
return par->done_event;
}
os_event_t dbug_alter_thread_done;
#endif
void mdl_lock_all()
{
mdl_lock_init();
datafiles_iter_t *it = datafiles_iter_new();
if (!it)
return;
while (fil_node_t *node = datafiles_iter_next(it)){
if (fil_is_user_tablespace_id(node->space->id)
&& check_if_skip_table(node->space->name))
continue;
mdl_lock_table(node->space->id);
}
datafiles_iter_free(it);
}
// Convert non-null terminated filename to space name
std::string filename_to_spacename(const byte *filename, size_t len)
{
// null- terminate filename
char *f = (char *)malloc(len + 1);
ut_a(f);
memcpy(f, filename, len);
f[len] = 0;
for (size_t i = 0; i < len; i++)
if (f[i] == '\\')
f[i] = '/';
char *p = strrchr(f, '.');
ut_a(p);
*p = 0;
char *table = strrchr(f, '/');
ut_a(table);
*table = 0;
char *db = strrchr(f, '/');
ut_a(db);
*table = '/';
std::string s(db+1);
free(f);
return s;
}
/** Report an operation to create, delete, or rename a file during backup.
@param[in] space_id tablespace identifier
@param[in] flags tablespace flags (NULL if not create)
@param[in] name file name (not NUL-terminated)
@param[in] len length of name, in bytes
@param[in] new_name new file name (NULL if not rename)
@param[in] new_len length of new_name, in bytes (0 if NULL) */
static void backup_file_op(ulint space_id, const byte* flags,
const byte* name, ulint len,
const byte* new_name, ulint new_len)
{
ut_ad(!flags || !new_name);
ut_ad(name);
ut_ad(len);
ut_ad(!new_name == !new_len);
pthread_mutex_lock(&backup_mutex);
if (flags) {
ddl_tracker.id_to_name[space_id] = filename_to_spacename(name, len);
msg("DDL tracking : create %zu \"%.*s\": %x",
space_id, int(len), name, mach_read_from_4(flags));
}
else if (new_name) {
ddl_tracker.id_to_name[space_id] = filename_to_spacename(new_name, new_len);
msg("DDL tracking : rename %zu \"%.*s\",\"%.*s\"",
space_id, int(len), name, int(new_len), new_name);
} else {
ddl_tracker.drops.insert(space_id);
msg("DDL tracking : delete %zu \"%.*s\"", space_id, int(len), name);
}
pthread_mutex_unlock(&backup_mutex);
}
/*
This callback is called if DDL operation is detected,
at the end of backup
Normally, DDL operations are blocked due to FTWRL,
but in rare cases of --no-lock, they are not.
We will abort backup in this case.
*/
static void backup_file_op_fail(ulint space_id, const byte* flags,
const byte* name, ulint len,
const byte* new_name, ulint new_len)
{
bool fail;
if (flags) {
msg("DDL tracking : create %zu \"%.*s\": %x",
space_id, int(len), name, mach_read_from_4(flags));
std::string spacename = filename_to_spacename(name, len);
fail = !check_if_skip_table(spacename.c_str());
}
else if (new_name) {
msg("DDL tracking : rename %zu \"%.*s\",\"%.*s\"",
space_id, int(len), name, int(new_len), new_name);
std::string spacename = filename_to_spacename(name, len);
std::string new_spacename = filename_to_spacename(new_name, new_len);
fail = !check_if_skip_table(spacename.c_str()) || !check_if_skip_table(new_spacename.c_str());
}
else {
std::string spacename = filename_to_spacename(name, len);
fail = !check_if_skip_table(spacename.c_str());
msg("DDL tracking : delete %zu \"%.*s\"", space_id, int(len), name);
}
if (fail) {
ut_a(opt_no_lock);
die("DDL operation detected in the late phase of backup."
"Backup is inconsistent. Remove --no-lock option to fix.");
}
}
/** Callback whenever MLOG_INDEX_LOAD happens.
@param[in] space_id space id to check */
static void backup_optimized_ddl_op(ulint space_id)
{
pthread_mutex_lock(&backup_mutex);
ddl_tracker.optimized_ddl.insert(space_id);
pthread_mutex_unlock(&backup_mutex);
}
/*
Optimized DDL callback at the end of backup that
run with --no-lock. Usually aborts the backup.
*/
static void backup_optimized_ddl_op_fail(ulint space_id) {
msg("DDL tracking : optimized DDL on space %zu", space_id);
if (ddl_tracker.tables_in_backup.find(space_id) != ddl_tracker.tables_in_backup.end()) {
ut_a(opt_no_lock);
msg("ERROR : Optimized DDL operation detected in the late phase of backup."
"Backup is inconsistent. Remove --no-lock option to fix.");
exit(EXIT_FAILURE);
}
}
/*
Retrieve default data directory, to be used with --copy-back.
On Windows, default datadir is ..\data, relative to the
directory where mariabackup.exe is located(usually "bin")
Elsewhere, the compiled-in constant MYSQL_DATADIR is used.
*/
static char *get_default_datadir() {
static char ddir[] = MYSQL_DATADIR;
#ifdef _WIN32
static char buf[MAX_PATH];
DWORD size = (DWORD)sizeof(buf) - 1;
if (GetModuleFileName(NULL, buf, size) <= size)
{
char *p;
if ((p = strrchr(buf, '\\')))
{
*p = 0;
if ((p = strrchr(buf, '\\')))
{
strncpy(p + 1, "data", buf + MAX_PATH - p);
return buf;
}
}
}
#endif
return ddir;
}
/* ======== Date copying thread context ======== */
typedef struct {
datafiles_iter_t *it;
uint num;
uint *count;
pthread_mutex_t* count_mutex;
os_thread_id_t id;
} data_thread_ctxt_t;
/* ======== for option and variables ======== */
#include <../../client/client_priv.h>
enum options_xtrabackup
{
OPT_XTRA_TARGET_DIR = 1000, /* make sure it is larger
than OPT_MAX_CLIENT_OPTION */
OPT_XTRA_BACKUP,
OPT_XTRA_PREPARE,
OPT_XTRA_EXPORT,
OPT_XTRA_PRINT_PARAM,
OPT_XTRA_USE_MEMORY,
OPT_XTRA_THROTTLE,
OPT_XTRA_LOG_COPY_INTERVAL,
OPT_XTRA_INCREMENTAL,
OPT_XTRA_INCREMENTAL_BASEDIR,
OPT_XTRA_EXTRA_LSNDIR,
OPT_XTRA_INCREMENTAL_DIR,
OPT_XTRA_TABLES,
OPT_XTRA_TABLES_FILE,
OPT_XTRA_DATABASES,
OPT_XTRA_DATABASES_FILE,
OPT_XTRA_PARALLEL,
OPT_XTRA_EXTENDED_VALIDATION,
OPT_XTRA_ENCRYPTED_BACKUP,
OPT_XTRA_STREAM,
OPT_XTRA_COMPRESS,
OPT_XTRA_COMPRESS_THREADS,
OPT_XTRA_COMPRESS_CHUNK_SIZE,
OPT_LOG,
OPT_INNODB,
OPT_INNODB_DATA_FILE_PATH,
OPT_INNODB_DATA_HOME_DIR,
OPT_INNODB_ADAPTIVE_HASH_INDEX,
OPT_INNODB_DOUBLEWRITE,
OPT_INNODB_FILE_PER_TABLE,
OPT_INNODB_FLUSH_METHOD,
OPT_INNODB_LOG_GROUP_HOME_DIR,
OPT_INNODB_MAX_DIRTY_PAGES_PCT,
OPT_INNODB_MAX_PURGE_LAG,
OPT_INNODB_STATUS_FILE,
OPT_INNODB_AUTOEXTEND_INCREMENT,
OPT_INNODB_BUFFER_POOL_SIZE,
OPT_INNODB_COMMIT_CONCURRENCY,
OPT_INNODB_CONCURRENCY_TICKETS,
OPT_INNODB_FILE_IO_THREADS,
OPT_INNODB_IO_CAPACITY,
OPT_INNODB_READ_IO_THREADS,
OPT_INNODB_WRITE_IO_THREADS,
OPT_INNODB_USE_NATIVE_AIO,
OPT_INNODB_PAGE_SIZE,
OPT_INNODB_BUFFER_POOL_FILENAME,
OPT_INNODB_LOCK_WAIT_TIMEOUT,
OPT_INNODB_LOG_BUFFER_SIZE,
OPT_INNODB_LOG_FILE_SIZE,
OPT_INNODB_LOG_FILES_IN_GROUP,
OPT_INNODB_OPEN_FILES,
OPT_XTRA_DEBUG_SYNC,
OPT_INNODB_CHECKSUM_ALGORITHM,
OPT_INNODB_UNDO_DIRECTORY,
OPT_INNODB_UNDO_TABLESPACES,
OPT_INNODB_LOG_CHECKSUMS,
OPT_XTRA_INCREMENTAL_FORCE_SCAN,
OPT_DEFAULTS_GROUP,
OPT_CLOSE_FILES,
OPT_CORE_FILE,
OPT_COPY_BACK,
OPT_MOVE_BACK,
OPT_GALERA_INFO,
OPT_SLAVE_INFO,
OPT_NO_LOCK,
OPT_SAFE_SLAVE_BACKUP,
OPT_RSYNC,
OPT_FORCE_NON_EMPTY_DIRS,
OPT_NO_VERSION_CHECK,
OPT_NO_BACKUP_LOCKS,
OPT_DECOMPRESS,
OPT_INCREMENTAL_HISTORY_NAME,
OPT_INCREMENTAL_HISTORY_UUID,
OPT_REMOVE_ORIGINAL,
OPT_LOCK_WAIT_QUERY_TYPE,
OPT_KILL_LONG_QUERY_TYPE,
OPT_HISTORY,
OPT_KILL_LONG_QUERIES_TIMEOUT,
OPT_LOCK_WAIT_TIMEOUT,
OPT_LOCK_WAIT_THRESHOLD,
OPT_DEBUG_SLEEP_BEFORE_UNLOCK,
OPT_SAFE_SLAVE_BACKUP_TIMEOUT,
OPT_BINLOG_INFO,
OPT_XB_SECURE_AUTH,
OPT_XTRA_TABLES_EXCLUDE,
OPT_XTRA_DATABASES_EXCLUDE,
OPT_PROTOCOL,
OPT_INNODB_COMPRESSION_LEVEL,
OPT_LOCK_DDL_PER_TABLE,
OPT_ROCKSDB_DATADIR,
OPT_BACKUP_ROCKSDB,
OPT_XTRA_CHECK_PRIVILEGES
};
struct my_option xb_client_options[] =
{
{"verbose", 'V', "display verbose output",
(G_PTR*) &verbose, (G_PTR*) &verbose, 0, GET_BOOL, NO_ARG,
FALSE, 0, 0, 0, 0, 0},
{"version", 'v', "print xtrabackup version information",
(G_PTR *) &xtrabackup_version, (G_PTR *) &xtrabackup_version, 0, GET_BOOL,
NO_ARG, 0, 0, 0, 0, 0, 0},
{"target-dir", OPT_XTRA_TARGET_DIR, "destination directory", (G_PTR*) &xtrabackup_target_dir,
(G_PTR*) &xtrabackup_target_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"backup", OPT_XTRA_BACKUP, "take backup to target-dir",
(G_PTR*) &xtrabackup_backup, (G_PTR*) &xtrabackup_backup,
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"prepare", OPT_XTRA_PREPARE, "prepare a backup for starting mysql server on the backup.",
(G_PTR*) &xtrabackup_prepare, (G_PTR*) &xtrabackup_prepare,
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"export", OPT_XTRA_EXPORT, "create files to import to another database when prepare.",
(G_PTR*) &xtrabackup_export, (G_PTR*) &xtrabackup_export,
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"print-param", OPT_XTRA_PRINT_PARAM, "print parameter of mysqld needed for copyback.",
(G_PTR*) &xtrabackup_print_param, (G_PTR*) &xtrabackup_print_param,
0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"use-memory", OPT_XTRA_USE_MEMORY, "The value is used instead of buffer_pool_size",
(G_PTR*) &xtrabackup_use_memory, (G_PTR*) &xtrabackup_use_memory,
0, GET_LL, REQUIRED_ARG, 100*1024*1024L, 1024*1024L, LONGLONG_MAX, 0,
1024*1024L, 0},
{"throttle", OPT_XTRA_THROTTLE, "limit count of IO operations (pairs of read&write) per second to IOS values (for '--backup')",
(G_PTR*) &xtrabackup_throttle, (G_PTR*) &xtrabackup_throttle,
0, GET_LONG, REQUIRED_ARG, 0, 0, LONG_MAX, 0, 1, 0},
{"log", OPT_LOG, "Ignored option for MySQL option compatibility",
(G_PTR*) &log_ignored_opt, (G_PTR*) &log_ignored_opt, 0,
GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
{"log-copy-interval", OPT_XTRA_LOG_COPY_INTERVAL, "time interval between checks done by log copying thread in milliseconds (default is 1 second).",
(G_PTR*) &xtrabackup_log_copy_interval, (G_PTR*) &xtrabackup_log_copy_interval,
0, GET_LONG, REQUIRED_ARG, 1000, 0, LONG_MAX, 0, 1, 0},
{"extra-lsndir", OPT_XTRA_EXTRA_LSNDIR, "(for --backup): save an extra copy of the xtrabackup_checkpoints file in this directory.",
(G_PTR*) &xtrabackup_extra_lsndir, (G_PTR*) &xtrabackup_extra_lsndir,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"incremental-lsn", OPT_XTRA_INCREMENTAL, "(for --backup): copy only .ibd pages newer than specified LSN 'high:low'. ##ATTENTION##: If a wrong LSN value is specified, it is impossible to diagnose this, causing the backup to be unusable. Be careful!",
(G_PTR*) &xtrabackup_incremental, (G_PTR*) &xtrabackup_incremental,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"incremental-basedir", OPT_XTRA_INCREMENTAL_BASEDIR, "(for --backup): copy only .ibd pages newer than backup at specified directory.",
(G_PTR*) &xtrabackup_incremental_basedir, (G_PTR*) &xtrabackup_incremental_basedir,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"incremental-dir", OPT_XTRA_INCREMENTAL_DIR, "(for --prepare): apply .delta files and logfile in the specified directory.",
(G_PTR*) &xtrabackup_incremental_dir, (G_PTR*) &xtrabackup_incremental_dir,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"tables", OPT_XTRA_TABLES, "filtering by regexp for table names.",
(G_PTR*) &xtrabackup_tables, (G_PTR*) &xtrabackup_tables,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"tables_file", OPT_XTRA_TABLES_FILE, "filtering by list of the exact database.table name in the file.",
(G_PTR*) &xtrabackup_tables_file, (G_PTR*) &xtrabackup_tables_file,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"databases", OPT_XTRA_DATABASES, "filtering by list of databases.",
(G_PTR*) &xtrabackup_databases, (G_PTR*) &xtrabackup_databases,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"databases_file", OPT_XTRA_DATABASES_FILE,
"filtering by list of databases in the file.",
(G_PTR*) &xtrabackup_databases_file, (G_PTR*) &xtrabackup_databases_file,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"tables-exclude", OPT_XTRA_TABLES_EXCLUDE, "filtering by regexp for table names. "
"Operates the same way as --tables, but matched names are excluded from backup. "
"Note that this option has a higher priority than --tables.",
(G_PTR*) &xtrabackup_tables_exclude, (G_PTR*) &xtrabackup_tables_exclude,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"databases-exclude", OPT_XTRA_DATABASES_EXCLUDE, "Excluding databases based on name, "
"Operates the same way as --databases, but matched names are excluded from backup. "
"Note that this option has a higher priority than --databases.",
(G_PTR*) &xtrabackup_databases_exclude, (G_PTR*) &xtrabackup_databases_exclude,
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"stream", OPT_XTRA_STREAM, "Stream all backup files to the standard output "
"in the specified format."
"Supported format is 'xbstream'."
,
(G_PTR*) &xtrabackup_stream_str, (G_PTR*) &xtrabackup_stream_str, 0, GET_STR,
REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"compress", OPT_XTRA_COMPRESS, "Compress individual backup files using the "
"specified compression algorithm. Currently the only supported algorithm "
"is 'quicklz'. It is also the default algorithm, i.e. the one used when "
"--compress is used without an argument.",
(G_PTR*) &xtrabackup_compress_alg, (G_PTR*) &xtrabackup_compress_alg, 0,
GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
{"compress-threads", OPT_XTRA_COMPRESS_THREADS,
"Number of threads for parallel data compression. The default value is 1.",
(G_PTR*) &xtrabackup_compress_threads, (G_PTR*) &xtrabackup_compress_threads,
0, GET_UINT, REQUIRED_ARG, 1, 1, UINT_MAX, 0, 0, 0},
{"compress-chunk-size", OPT_XTRA_COMPRESS_CHUNK_SIZE,
"Size of working buffer(s) for compression threads in bytes. The default value is 64K.",
(G_PTR*) &xtrabackup_compress_chunk_size, (G_PTR*) &xtrabackup_compress_chunk_size,
0, GET_ULL, REQUIRED_ARG, (1 << 16), 1024, ULONGLONG_MAX, 0, 0, 0},
{"incremental-force-scan", OPT_XTRA_INCREMENTAL_FORCE_SCAN,
"Perform a full-scan incremental backup even in the presence of changed "
"page bitmap data",
(G_PTR*)&xtrabackup_incremental_force_scan,
(G_PTR*)&xtrabackup_incremental_force_scan, 0, GET_BOOL, NO_ARG,
0, 0, 0, 0, 0, 0},
{"close_files", OPT_CLOSE_FILES, "do not keep files opened. Use at your own "
"risk.", (G_PTR*) &xb_close_files, (G_PTR*) &xb_close_files, 0, GET_BOOL,
NO_ARG, 0, 0, 0, 0, 0, 0},
{"core-file", OPT_CORE_FILE, "Write core on fatal signals", 0, 0, 0,
GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
{"copy-back", OPT_COPY_BACK, "Copy all the files in a previously made "
"backup from the backup directory to their original locations.",
(uchar *) &xtrabackup_copy_back, (uchar *) &xtrabackup_copy_back, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"move-back", OPT_MOVE_BACK, "Move all the files in a previously made "
"backup from the backup directory to the actual datadir location. "
"Use with caution, as it removes backup files.",
(uchar *) &xtrabackup_move_back, (uchar *) &xtrabackup_move_back, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"galera-info", OPT_GALERA_INFO, "This options creates the "
"xtrabackup_galera_info file which contains the local node state at "
"the time of the backup. Option should be used when performing the "
"backup of MariaDB Galera Cluster. Has no effect when backup locks "
"are used to create the backup.",
(uchar *) &opt_galera_info, (uchar *) &opt_galera_info, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"slave-info", OPT_SLAVE_INFO, "This option is useful when backing "
"up a replication slave server. It prints the binary log position "
"and name of the master server. It also writes this information to "
"the \"xtrabackup_slave_info\" file as a \"CHANGE MASTER\" command. "
"A new slave for this master can be set up by starting a slave server "
"on this backup and issuing a \"CHANGE MASTER\" command with the "
"binary log position saved in the \"xtrabackup_slave_info\" file.",
(uchar *) &opt_slave_info, (uchar *) &opt_slave_info, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"no-lock", OPT_NO_LOCK, "Use this option to disable table lock "
"with \"FLUSH TABLES WITH READ LOCK\". Use it only if ALL your "
"tables are InnoDB and you DO NOT CARE about the binary log "
"position of the backup. This option shouldn't be used if there "
"are any DDL statements being executed or if any updates are "
"happening on non-InnoDB tables (this includes the system MyISAM "
"tables in the mysql database), otherwise it could lead to an "
"inconsistent backup. If you are considering to use --no-lock "
"because your backups are failing to acquire the lock, this could "
"be because of incoming replication events preventing the lock "
"from succeeding. Please try using --safe-slave-backup to "
"momentarily stop the replication slave thread, this may help "
"the backup to succeed and you then don't need to resort to "
"using this option.",
(uchar *) &opt_no_lock, (uchar *) &opt_no_lock, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"safe-slave-backup", OPT_SAFE_SLAVE_BACKUP, "Stop slave SQL thread "
"and wait to start backup until Slave_open_temp_tables in "
"\"SHOW STATUS\" is zero. If there are no open temporary tables, "
"the backup will take place, otherwise the SQL thread will be "
"started and stopped until there are no open temporary tables. "
"The backup will fail if Slave_open_temp_tables does not become "
"zero after --safe-slave-backup-timeout seconds. The slave SQL "
"thread will be restarted when the backup finishes.",
(uchar *) &opt_safe_slave_backup,