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bug fixes in server-id, moved replication functionality to

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sql_repl.* will push this one, since the replication code now works
This commit is contained in:
sasha@mysql.sashanet.com
2000-09-29 17:20:26 -06:00
parent 079d859072
commit 62a6a0fdf1
10 changed files with 41 additions and 527 deletions
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228
sql/sql_parse.cc
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@ -17,6 +17,7 @@
#include "mysql_priv.h"
#include "sql_acl.h"
#include "sql_repl.h"
#include <m_ctype.h>
#include <thr_alarm.h>
#include <myisam.h>
@ -24,13 +25,6 @@
#define SCRAMBLE_LENGTH 8
extern pthread_handler_decl(handle_slave,arg);
extern bool slave_running;
extern char* master_host;
extern pthread_t slave_real_id;
extern MASTER_INFO glob_mi;
extern my_string opt_bin_logname, master_info_file;
extern I_List<i_string> binlog_do_db, binlog_ignore_db;
extern int yyparse(void);
extern "C" pthread_mutex_t THR_LOCK_keycache;
@ -47,15 +41,8 @@ static void mysql_init_query(THD *thd);
static void remove_escape(char *name);
static void kill_one_thread(THD *thd, ulong thread);
static void refresh_status(void);
static int start_slave(THD* thd = 0, bool net_report = 1);
static int stop_slave(THD* thd = 0, bool net_report = 1);
static int change_master(THD* thd);
static void reset_slave();
static void reset_master();
extern int init_master_info(MASTER_INFO* mi);
static const char *any_db="*any*"; // Special symbol for check_access
const char *any_db="*any*"; // Special symbol for check_access
const char *command_name[]={
"Sleep", "Quit", "Init DB", "Query", "Field List", "Create DB",
@ -717,9 +704,14 @@ bool do_command(THD *thd)
ulong pos;
ushort flags;
uint32 slave_server_id;
pos = uint4korr(packet + 1);
flags = uint2korr(packet + 5);
mysql_binlog_send(thd, thd->strdup(packet + 7), pos, flags);
pthread_mutex_lock(&LOCK_server_id);
kill_zombie_dump_threads(slave_server_id = uint4korr(packet+7));
thd->server_id = slave_server_id;
pthread_mutex_unlock(&LOCK_server_id);
mysql_binlog_send(thd, strdup(packet + 11), pos, flags);
break;
}
case COM_REFRESH:
@ -2516,207 +2508,3 @@ static void refresh_status(void)
pthread_mutex_unlock(&THR_LOCK_keycache);
}
static int start_slave(THD* thd , bool net_report)
{
if(!thd) thd = current_thd;
NET* net = &thd->net;
const char* err = 0;
if (check_access(thd, PROCESS_ACL, any_db))
return 1;
pthread_mutex_lock(&LOCK_slave);
if(!slave_running)
if(glob_mi.inited && glob_mi.host)
{
pthread_t hThread;
if(pthread_create(&hThread, &connection_attrib, handle_slave, 0))
{
err = "cannot create slave thread";
}
}
else
err = "Master host not set or master info not initialized";
else
err = "Slave already running";
pthread_mutex_unlock(&LOCK_slave);
if(err)
{
if(net_report) send_error(net, 0, err);
return 1;
}
else if(net_report)
send_ok(net);
return 0;
}
static int stop_slave(THD* thd, bool net_report )
{
if(!thd) thd = current_thd;
NET* net = &thd->net;
const char* err = 0;
if (check_access(thd, PROCESS_ACL, any_db))
return 1;
pthread_mutex_lock(&LOCK_slave);
if (slave_running)
{
abort_slave = 1;
thr_alarm_kill(slave_real_id);
// do not abort the slave in the middle of a query, so we do not set
// thd->killed for the slave thread
thd->proc_info = "waiting for slave to die";
pthread_cond_wait(&COND_slave_stopped, &LOCK_slave);
}
else
err = "Slave is not running";
pthread_mutex_unlock(&LOCK_slave);
thd->proc_info = 0;
if(err)
{
if(net_report) send_error(net, 0, err);
return 1;
}
else if(net_report)
send_ok(net);
return 0;
}
static void reset_slave()
{
MY_STAT stat_area;
char fname[FN_REFLEN];
bool slave_was_running = slave_running;
if(slave_running)
stop_slave(0,0);
fn_format(fname, master_info_file, mysql_data_home, "", 4+16+32);
if(my_stat(fname, &stat_area, MYF(0)))
if(my_delete(fname, MYF(MY_WME)))
return;
if(slave_was_running)
start_slave(0,0);
}
static int change_master(THD* thd)
{
bool slave_was_running;
// kill slave thread
pthread_mutex_lock(&LOCK_slave);
if((slave_was_running = slave_running))
{
abort_slave = 1;
thr_alarm_kill(slave_real_id);
thd->proc_info = "waiting for slave to die";
pthread_cond_wait(&COND_slave_stopped, &LOCK_slave); // wait until done
}
pthread_mutex_unlock(&LOCK_slave);
thd->proc_info = "changing master";
LEX_MASTER_INFO* lex_mi = &thd->lex.mi;
if(!glob_mi.inited)
init_master_info(&glob_mi);
pthread_mutex_lock(&glob_mi.lock);
if((lex_mi->host || lex_mi->port) && !lex_mi->log_file_name && !lex_mi->pos)
{
// if we change host or port, we must reset the postion
glob_mi.log_file_name[0] = 0;
glob_mi.pos = 0;
}
if(lex_mi->log_file_name)
strmake(glob_mi.log_file_name, lex_mi->log_file_name,
sizeof(glob_mi.log_file_name));
if(lex_mi->pos)
glob_mi.pos = lex_mi->pos;
if(lex_mi->host)
strmake(glob_mi.host, lex_mi->host, sizeof(glob_mi.host));
if(lex_mi->user)
strmake(glob_mi.user, lex_mi->user, sizeof(glob_mi.user));
if(lex_mi->password)
strmake(glob_mi.password, lex_mi->password, sizeof(glob_mi.password));
if(lex_mi->port)
glob_mi.port = lex_mi->port;
if(lex_mi->connect_retry)
glob_mi.connect_retry = lex_mi->connect_retry;
flush_master_info(&glob_mi);
pthread_mutex_unlock(&glob_mi.lock);
thd->proc_info = "starting slave";
if(slave_was_running)
start_slave(0,0);
thd->proc_info = 0;
send_ok(&thd->net);
return 0;
}
static void reset_master()
{
if(!mysql_bin_log.is_open())
{
my_error(ER_FLUSH_MASTER_BINLOG_CLOSED, MYF(ME_BELL+ME_WAITTANG));
return;
}
LOG_INFO linfo;
if (mysql_bin_log.find_first_log(&linfo, ""))
return;
for(;;)
{
my_delete(linfo.log_file_name, MYF(MY_WME));
if (mysql_bin_log.find_next_log(&linfo))
break;
}
mysql_bin_log.close(1); // exiting close
my_delete(mysql_bin_log.get_index_fname(), MYF(MY_WME));
mysql_bin_log.open(opt_bin_logname,LOG_BIN);
}
int show_binlog_info(THD* thd)
{
DBUG_ENTER("show_binlog_info");
List<Item> field_list;
field_list.push_back(new Item_empty_string("File", FN_REFLEN));
field_list.push_back(new Item_empty_string("Position",20));
field_list.push_back(new Item_empty_string("Binlog_do_db",20));
field_list.push_back(new Item_empty_string("Binlog_ignore_db",20));
if(send_fields(thd, field_list, 1))
DBUG_RETURN(-1);
String* packet = &thd->packet;
packet->length(0);
if(mysql_bin_log.is_open())
{
LOG_INFO li;
mysql_bin_log.get_current_log(&li);
net_store_data(packet, li.log_file_name);
net_store_data(packet, (longlong)li.pos);
net_store_data(packet, &binlog_do_db);
net_store_data(packet, &binlog_ignore_db);
}
else
{
net_store_null(packet);
net_store_null(packet);
net_store_null(packet);
net_store_null(packet);
}
if(my_net_write(&thd->net, (char*)thd->packet.ptr(), packet->length()))
DBUG_RETURN(-1);
send_eof(&thd->net);
DBUG_RETURN(0);
}