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A slave now can optionally register with the master providing the

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info on how to connect to the slave for the clients that connect to
the master, but would like to know where the slaves are


include/mysql_com.h:
  register slaves
mysql-test/mysql-test-run.sh:
  parameters to test slave registration
mysql-test/r/rpl000002.result:
  test of slave registration
mysql-test/t/rpl000002.test:
  test slave registration
sql/mysql_priv.h:
  slave registration
sql/mysqld.cc:
  slave registration
sql/slave.cc:
  slave registration
sql/slave.h:
  slave registration
sql/sql_lex.h:
  slave registration
sql/sql_parse.cc:
  slave registration
sql/sql_repl.cc:
  slave registration
sql/sql_repl.h:
  slave registration
sql/sql_yacc.yy:
  slave registration
This commit is contained in:
unknown
2001-05-30 18:50:56 -06:00
parent f5e06429a6
commit ecba786861
13 changed files with 245 additions and 10 deletions
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52
sql/slave.cc
View File

@ -569,6 +569,52 @@ error:
return 1;
}
int register_slave_on_master(MYSQL* mysql)
{
String packet;
uint len;
char buf[4];
if(!report_host)
return 0;
int4store(buf, server_id);
packet.append(buf, 4);
len = strlen(report_host);
packet.append((char)(uchar)len);
packet.append(report_host, len);
len = strlen(report_user);
packet.append((char)(uchar)len);
packet.append(report_user, len);
if(report_password)
{
len = strlen(report_password);
packet.append((char)(uchar)len);
packet.append(report_password, len);
}
else
{
packet.append((char)0);
}
int2store(buf, (uint16)report_port);
packet.append(buf, 2);
if(mc_simple_command(mysql, COM_REGISTER_SLAVE, (char*)packet.ptr(),
packet.length(), 0))
{
sql_print_error("Error on COM_REGISTER_SLAVE: '%s'",
mc_mysql_error(mysql));
return 1;
}
return 0;
}
int show_master_info(THD* thd)
{
DBUG_ENTER("show_master_info");
@ -1245,6 +1291,12 @@ pthread_handler_decl(handle_slave,arg __attribute__((unused)))
sql_print_error("Slave thread killed while connecting to master");
goto err;
}
// register ourselves with the master
// if fails, this is not fatal - we just print the error message and go
// on with life
thd->proc_info = "Registering slave on master";
register_slave_on_master(mysql);
while (!slave_killed(thd))
{