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-rw-r--r--mysql-test/r/rpl000009.result48
-rw-r--r--mysql-test/t/rpl000009.test56
-rw-r--r--sql/repl_failsafe.cc14
-rw-r--r--sql/slave.cc45
-rw-r--r--sql/slave.h4
-rw-r--r--sql/sql_parse.cc7
6 files changed, 150 insertions, 24 deletions
diff --git a/mysql-test/r/rpl000009.result b/mysql-test/r/rpl000009.result
index 002f6843953..4a8057467f2 100644
--- a/mysql-test/r/rpl000009.result
+++ b/mysql-test/r/rpl000009.result
@@ -49,21 +49,48 @@ show databases;
Database
mysql
test
+create database foo;
+create table foo.t1(n int, s char(20));
+insert into foo.t1 values (1, 'original foo.t1');
+create table foo.t3(n int, s char(20));
+insert into foo.t3 values (1, 'original foo.t3');
+create database foo2;
+create table foo2.t1(n int, s char(20));
+insert into foo2.t1 values (1, 'original foo2.t1');
+create database bar;
+create table bar.t1(n int, s char(20));
+insert into bar.t1 values (1, 'original bar.t1');
+create table bar.t3(n int, s char(20));
+insert into bar.t3 values (1, 'original bar.t3');
load data from master;
show databases;
Database
bar
foo
+foo2
mysql
test
use foo;
show tables;
Tables_in_foo
+t1
+t3
+select * from t1;
+n s
+1 original foo.t1
+use foo2;
+show tables;
+Tables_in_foo2
+t1
+select * from t1;
+n s
+1 original foo2.t1
use bar;
show tables;
Tables_in_bar
t1
t2
+t3
select * from bar.t1;
n s
1 one bar
@@ -74,6 +101,9 @@ n s
11 eleven bar
12 twelve bar
13 thirteen bar
+select * from bar.t3;
+n s
+1 original bar.t3
insert into bar.t1 values (4, 'four bar');
select * from bar.t1;
n s
@@ -81,5 +111,23 @@ n s
2 two bar
3 three bar
4 four bar
+insert into bar.t1 values(10, 'should be there');
+flush tables;
+load data from master;
+Error on delete of './bar/t1.MYI' (Errcode: 13)
+select * from bar.t1;
+n s
+1 one bar
+2 two bar
+3 three bar
+4 four bar
+10 should be there
+load table bar.t1 from master;
+Table 't1' already exists
+drop table bar.t1;
+load table bar.t1 from master;
+start slave;
drop database bar;
drop database foo;
+drop database foo;
+drop database foo2;
diff --git a/mysql-test/t/rpl000009.test b/mysql-test/t/rpl000009.test
index 5f55355271a..975cfbf9a65 100644
--- a/mysql-test/t/rpl000009.test
+++ b/mysql-test/t/rpl000009.test
@@ -60,16 +60,45 @@ sync_with_master;
# This should show that the slave is empty at this point
show databases;
+# Create foo and foo2 on slave; we expect that LOAD DATA FROM MASTER will
+# neither touch database foo nor foo2.
+create database foo;
+create table foo.t1(n int, s char(20));
+insert into foo.t1 values (1, 'original foo.t1');
+create table foo.t3(n int, s char(20));
+insert into foo.t3 values (1, 'original foo.t3');
+create database foo2;
+create table foo2.t1(n int, s char(20));
+insert into foo2.t1 values (1, 'original foo2.t1');
+# Create bar, and bar.t1, to check that it gets replaced,
+# and bar.t3 to check that it is not touched (there is no bar.t3 on master)
+create database bar;
+create table bar.t1(n int, s char(20));
+insert into bar.t1 values (1, 'original bar.t1');
+create table bar.t3(n int, s char(20));
+insert into bar.t3 values (1, 'original bar.t3');
+
load data from master;
# Now let's check if we have the right tables and the right data in them
show databases;
use foo;
-show tables;
+# LOAD DATA FROM MASTER uses only replicate_*_db rules to decide which databases
+# have to be copied. So it thinks "foo" has to be copied. Before 4.0.16 it would
+# first drop "foo", then create "foo". This "drop" is a bug; in that case t3
+# would disappear.
+# So here the effect of this bug (BUG#1248) would be to leave an empty "foo" on
+# the slave.
+show tables; # should be t1 & t3
+select * from t1; # should be slave's original
+use foo2;
+show tables; # should be t1
+select * from t1; # should be slave's original
use bar;
-show tables;
+show tables; # should contain master's copied t1&t2, slave's original t3
select * from bar.t1;
select * from bar.t2;
+select * from bar.t3;
# Now let's see if replication works
connection master;
@@ -79,6 +108,26 @@ connection slave;
sync_with_master;
select * from bar.t1;
+# Check that LOAD DATA FROM MASTER reports the error if it can't drop a
+# table to be overwritten.
+insert into bar.t1 values(10, 'should be there');
+flush tables;
+system chmod 500 var/slave-data/bar/;
+--error 6
+load data from master; # should fail (errno 13)
+system chmod 700 var/slave-data/bar/;
+select * from bar.t1; # should contain the row (10, ...)
+
+
+# Check that LOAD TABLE FROM MASTER fails if the table exists on slave
+--error 1050
+load table bar.t1 from master;
+drop table bar.t1;
+load table bar.t1 from master;
+
+# as LOAD DATA FROM MASTER failed it did not restart slave threads
+start slave;
+
# Now time for cleanup
connection master;
drop database bar;
@@ -86,4 +135,5 @@ drop database foo;
save_master_pos;
connection slave;
sync_with_master;
-
+drop database foo;
+drop database foo2;
diff --git a/sql/repl_failsafe.cc b/sql/repl_failsafe.cc
index dc3f3c87dde..8deb23e8586 100644
--- a/sql/repl_failsafe.cc
+++ b/sql/repl_failsafe.cc
@@ -717,7 +717,8 @@ static int fetch_db_tables(THD *thd, MYSQL *mysql, const char *db,
if (!tables_ok(thd, &table))
continue;
}
- if ((error= fetch_master_table(thd, db, table_name, mi, mysql)))
+ /* download master's table and overwrite slave's table */
+ if ((error= fetch_master_table(thd, db, table_name, mi, mysql, 1)))
return error;
}
return 0;
@@ -819,8 +820,11 @@ int load_master_data(THD* thd)
char* db = row[0];
/*
- Do not replicate databases excluded by rules
- also skip mysql database - in most cases the user will
+ Do not replicate databases excluded by rules. We also test
+ replicate_wild_*_table rules (replicate_wild_ignore_table='db1.%' will
+ be considered as "ignore the 'db1' database as a whole, as it already
+ works for CREATE DATABASE and DROP DATABASE).
+ Also skip 'mysql' database - in most cases the user will
mess up and not exclude mysql database with the rules when
he actually means to - in this case, he is up for a surprise if
his priv tables get dropped and downloaded from master
@@ -830,14 +834,14 @@ int load_master_data(THD* thd)
*/
if (!db_ok(db, replicate_do_db, replicate_ignore_db) ||
+ !db_ok_with_wild_table(db) ||
!strcmp(db,"mysql"))
{
*cur_table_res = 0;
continue;
}
- if (mysql_rm_db(thd, db, 1,1) ||
- mysql_create_db(thd, db, 0, 1))
+ if (mysql_create_db(thd, db, HA_LEX_CREATE_IF_NOT_EXISTS, 1))
{
send_error(&thd->net, 0, 0);
cleanup_mysql_results(db_res, cur_table_res - 1, table_res);
diff --git a/sql/slave.cc b/sql/slave.cc
index 1bc8dfc5b78..10d451a88bc 100644
--- a/sql/slave.cc
+++ b/sql/slave.cc
@@ -72,7 +72,7 @@ static int safe_sleep(THD* thd, int sec, CHECK_KILLED_FUNC thread_killed,
void* thread_killed_arg);
static int request_table_dump(MYSQL* mysql, const char* db, const char* table);
static int create_table_from_dump(THD* thd, NET* net, const char* db,
- const char* table_name);
+ const char* table_name, bool overwrite);
static int check_master_version(MYSQL* mysql, MASTER_INFO* mi);
@@ -1033,12 +1033,22 @@ static int check_master_version(MYSQL* mysql, MASTER_INFO* mi)
return 0;
}
+/*
+ Used by fetch_master_table (used by LOAD TABLE tblname FROM MASTER and LOAD
+ DATA FROM MASTER). Drops the table (if 'overwrite' is true) and recreates it
+ from the dump. Honours replication inclusion/exclusion rules.
+
+ RETURN VALUES
+ 0 success
+ 1 error
+*/
static int create_table_from_dump(THD* thd, NET* net, const char* db,
- const char* table_name)
+ const char* table_name, bool overwrite)
{
ulong packet_len = my_net_read(net); // read create table statement
char *query;
+ char* save_db;
Vio* save_vio;
HA_CHECK_OPT check_opt;
TABLE_LIST tables;
@@ -1078,13 +1088,24 @@ static int create_table_from_dump(THD* thd, NET* net, const char* db,
thd->current_tablenr = 0;
thd->query_error = 0;
thd->net.no_send_ok = 1;
+
+ bzero((char*) &tables,sizeof(tables));
+ tables.db = (char*)db;
+ tables.alias= tables.real_name= (char*)table_name;
+ /* Drop the table if 'overwrite' is true */
+ if (overwrite && mysql_rm_table(thd,&tables,1)) /* drop if exists */
+ {
+ send_error(&thd->net);
+ sql_print_error("create_table_from_dump: failed to drop the table");
+ goto err;
+ }
- /* we do not want to log create table statement */
+ /* Create the table. We do not want to log the "create table" statement */
save_options = thd->options;
thd->options &= ~(ulong) (OPTION_BIN_LOG);
thd->proc_info = "Creating table from master dump";
// save old db in case we are creating in a different database
- char* save_db = thd->db;
+ save_db = thd->db;
thd->db = (char*)db;
mysql_parse(thd, thd->query, packet_len); // run create table
thd->db = save_db; // leave things the way the were before
@@ -1093,11 +1114,8 @@ static int create_table_from_dump(THD* thd, NET* net, const char* db,
if (thd->query_error)
goto err; // mysql_parse took care of the error send
- bzero((char*) &tables,sizeof(tables));
- tables.db = (char*)db;
- tables.alias= tables.real_name= (char*)table_name;
- tables.lock_type = TL_WRITE;
thd->proc_info = "Opening master dump table";
+ tables.lock_type = TL_WRITE;
if (!open_ltable(thd, &tables, TL_WRITE))
{
send_error(&thd->net,0,0); // Send error from open_ltable
@@ -1107,10 +1125,11 @@ static int create_table_from_dump(THD* thd, NET* net, const char* db,
file = tables.table->file;
thd->proc_info = "Reading master dump table data";
+ /* Copy the data file */
if (file->net_read_dump(net))
{
net_printf(&thd->net, ER_MASTER_NET_READ);
- sql_print_error("create_table_from_dump::failed in\
+ sql_print_error("create_table_from_dump: failed in\
handler::net_read_dump()");
goto err;
}
@@ -1125,6 +1144,7 @@ static int create_table_from_dump(THD* thd, NET* net, const char* db,
*/
save_vio = thd->net.vio;
thd->net.vio = 0;
+ /* Rebuild the index file from the copied data file (with REPAIR) */
error=file->repair(thd,&check_opt) != 0;
thd->net.vio = save_vio;
if (error)
@@ -1137,7 +1157,7 @@ err:
}
int fetch_master_table(THD *thd, const char *db_name, const char *table_name,
- MASTER_INFO *mi, MYSQL *mysql)
+ MASTER_INFO *mi, MYSQL *mysql, bool overwrite)
{
int error= 1;
const char *errmsg=0;
@@ -1169,9 +1189,10 @@ int fetch_master_table(THD *thd, const char *db_name, const char *table_name,
errmsg= "Failed on table dump request";
goto err;
}
+
if (create_table_from_dump(thd, &mysql->net, db_name,
- table_name))
- goto err; // create_table_from_dump will have sent the error already
+ table_name, overwrite))
+ goto err; // create_table_from_dump will have send_error already
error = 0;
err:
diff --git a/sql/slave.h b/sql/slave.h
index 67bf009763b..f61891acc91 100644
--- a/sql/slave.h
+++ b/sql/slave.h
@@ -384,9 +384,9 @@ int start_slave_thread(pthread_handler h_func, pthread_mutex_t* start_lock,
int mysql_table_dump(THD* thd, const char* db,
const char* tbl_name, int fd = -1);
-/* retrieve non-exitent table from master */
+/* retrieve table from master and copy to slave*/
int fetch_master_table(THD* thd, const char* db_name, const char* table_name,
- MASTER_INFO* mi, MYSQL* mysql);
+ MASTER_INFO* mi, MYSQL* mysql, bool overwrite);
int show_master_info(THD* thd, MASTER_INFO* mi);
int show_binlog_info(THD* thd);
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 4d010ac9a4b..0c4e3cad763 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -1568,9 +1568,12 @@ mysql_execute_command(void)
goto error;
}
LOCK_ACTIVE_MI;
- // fetch_master_table will send the error to the client on failure
+ /*
+ fetch_master_table will send the error to the client on failure.
+ Give error if the table already exists.
+ */
if (!fetch_master_table(thd, tables->db, tables->real_name,
- active_mi, 0))
+ active_mi, 0, 0))
{
send_ok(&thd->net);
}
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