- Followed https://mysqlserverteam.com/clone-create-mysql-instance-replica/ & https://dev.mysql.com/doc/refman/8.0/en/clone-plugin-remote.html
- Donor setup
- build used

cat docs/INFO_SRC
commit: a5b2e523c881ab8c68fd0adb478a6232dd69e522
date: 2019-06-25 11:50:40 +0200
build-date: 2019-06-25 12:24:04 +0200
short: a5b2e52
branch: mysql-8.0.17-release

MySQL source 8.0.17

-- Startup commands for Donor and Recipient

rm -rf 96657_Donor/
bin/mysqld --initialize-insecure --basedir=$PWD --datadir=$PWD/96657_Donor --log-error-verbosity=3
bin/mysqld_safe --no-defaults --basedir=$PWD --datadir=$PWD/96657_Donor --core-file --socket=/tmp/mysql_Donor.sock  --port=3333 --log-error=$PWD/96657_Donor/log.err --mysqlx-port=33330 --mysqlx-socket=/tmp/mysql_x_ushastry.sock --log-error-verbosity=3  --secure-file-priv=/tmp/ 2>&1 &

- Recipient setup

rm -rf 96657_Recipient/
bin/mysqld --initialize-insecure --basedir=$PWD --datadir=$PWD/96657_Recipient --log-error-verbosity=3
bin/mysqld_safe --no-defaults --basedir=$PWD --datadir=$PWD/96657_Recipient --core-file --socket=/tmp/mysql_Recipient.sock  --port=6666 --log-error=$PWD/96657_Recipient/log.err --mysqlx-port=33360 --mysqlx-socket=/tmp/mysql_x_Recipient.sock --log-error-verbosity=3  --secure-file-priv=/tmp/ 2>&1 &


### Donor

 bin/mysql -uroot -S /tmp/mysql_Donor.sock --prompt='Donor>'
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 8.0.17 MySQL Community Server - GPL

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

Donor>
Donor>INSTALL PLUGIN CLONE SONAME "mysql_clone.so";
Query OK, 0 rows affected (0.01 sec)

Donor>SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE 'clone';
+-------------+---------------+
| PLUGIN_NAME | PLUGIN_STATUS |
+-------------+---------------+
| clone       | ACTIVE        |
+-------------+---------------+
1 row in set (0.00 sec)

Donor>CREATE USER clone_user IDENTIFIED BY "clone_password";
Query OK, 0 rows affected (0.01 sec)

Donor>GRANT BACKUP_ADMIN ON *.* to clone_user;
Query OK, 0 rows affected (0.00 sec)

Donor>GRANT SELECT ON performance_schema.* TO clone_user;
Query OK, 0 rows affected (0.00 sec)

Donor>GRANT EXECUTE ON *.* to clone_user;
Query OK, 0 rows affected (0.00 sec)

Donor>
-- provisioned some data

Donor>use test;
Database changed
Donor>drop table if exists keyvalue;
Query OK, 0 rows affected, 1 warning (0.00 sec)

Donor>CREATE TABLE `keyvalue` (
    ->   `id` bigint(20) unsigned NOT NULL,
    ->   `name1` varchar(250),
    ->   `name2` varchar(250),
    ->   `name3` varchar(250),
    ->   `name4` varchar(250),
    ->   PRIMARY KEY (`id`, name1(10))
    -> ) ENGINE=innodb;
Query OK, 0 rows affected, 1 warning (0.01 sec)

Donor>
Donor>set @id:=0;
Query OK, 0 rows affected (0.00 sec)

Donor>
Donor> insert into `keyvalue` values
    ->   (@id:=@id+1,md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000))
    -> ,  (@id:=@id+1,md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000))
    -> , (@id:=@id+1,md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000))
    -> , (@id:=@id+1,md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000));
Query OK, 4 rows affected, 4 warnings (0.00 sec)
Records: 4  Duplicates: 0  Warnings: 4

Donor>
Donor> insert into `keyvalue`(`id`,`name1`,`name2`,`name3`,`name4`)
    ->    select  @id:=@id+1,md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000),md5(rand()*1000000)  from
    ->     `keyvalue` k1, `keyvalue` k2, `keyvalue` k3, `keyvalue` k4,`keyvalue` k5,`keyvalue` k6, `keyvalue` k7, `keyvalue` k8, `keyvalue` k9,
    -> `keyvalue` k0,`keyvalue` ka, `keyvalue` kb, `keyvalue` kc, `keyvalue` kd limit  1000000;
Query OK, 1000000 rows affected, 1 warning (29.09 sec)
Records: 1000000  Duplicates: 0  Warnings: 1



## Recipient

 bin/mysql -uroot -S /tmp/mysql_Recipient.sock --prompt='Recipient>'
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 8.0.17 MySQL Community Server - GPL

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

Recipient>INSTALL PLUGIN CLONE SONAME "mysql_clone.so";
Query OK, 0 rows affected (0.01 sec)

Recipient>SELECT PLUGIN_NAME, PLUGIN_STATUS FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME LIKE 'clone';
+-------------+---------------+
| PLUGIN_NAME | PLUGIN_STATUS |
+-------------+---------------+
| clone       | ACTIVE        |
+-------------+---------------+
1 row in set (0.00 sec)

Recipient>CREATE USER clone_user IDENTIFIED BY "clone_password";
Query OK, 0 rows affected (0.01 sec)

Recipient>GRANT CLONE_ADMIN ON *.* to clone_user;
Query OK, 0 rows affected (0.00 sec)

Recipient>GRANT SELECT ON performance_schema.* TO clone_user;
Query OK, 0 rows affected (0.00 sec)

Recipient>GRANT EXECUTE ON *.* to clone_user;
Query OK, 0 rows affected (0.00 sec)

Recipient>
Recipient>show variables like 'clone';
Empty set (0.00 sec)

Recipient>SHOW VARIABLES LIKE 'clone_valid_donor_list';
+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| clone_valid_donor_list |       |
+------------------------+-------+
1 row in set (0.00 sec)

Recipient>SET GLOBAL clone_valid_donor_list = "localhost:3333";
Query OK, 0 rows affected (0.00 sec)

Recipient>SHOW VARIABLES LIKE 'clone_valid_donor_list';
+------------------------+----------------+
| Variable_name          | Value          |
+------------------------+----------------+
| clone_valid_donor_list | localhost:3333 |
+------------------------+----------------+
1 row in set (0.00 sec)

Recipient>CLONE INSTANCE FROM clone_user@localhost:3333 IDENTIFIED BY 'clone_password';
Query OK, 0 rows affected (1.73 sec)

Recipient>
Recipient>
Recipient>Restarting mysqld...
2019-08-27T07:21:41.323872Z mysqld_safe Number of processes running now: 0
2019-08-27T07:21:41.328298Z mysqld_safe mysqld restarted

Recipient>
Recipient>
Recipient>select STATE, CAST(BEGIN_TIME AS DATETIME) as "START TIME", CASE WHEN END_TIME IS NULL THEN LPAD(sys.format_time(POWER(10,12) * (UNIX_TIMESTAMP(now()) - UNIX_TIMESTAMP(BEGIN_TIME))), 10, ' ') ELSE LPAD(sys.format_time(POWER(10,12) * (UNIX_TIMESTAMP(END_TIME) - UNIX_TIMESTAMP(BEGIN_TIME))), 10, ' ') END as DURATION from performance_schema.clone_status;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    7
Current database: *** NONE ***

+-----------+---------------------+------------+
| STATE     | START TIME          | DURATION   |
+-----------+---------------------+------------+
| Completed | 2019-08-27 09:21:36 |     5.91 s |
+-----------+---------------------+------------+
1 row in set (0.01 sec)

- again clone Recipient from same Donor


Recipient>SHOW VARIABLES LIKE 'clone_valid_donor_list';
+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| clone_valid_donor_list |       |
+------------------------+-------+
1 row in set (0.01 sec)

Recipient>SET GLOBAL clone_valid_donor_list = "localhost:3333";
Query OK, 0 rows affected (0.00 sec)

Recipient>SHOW VARIABLES LIKE 'clone_valid_donor_list';
+------------------------+----------------+
| Variable_name          | Value          |
+------------------------+----------------+
| clone_valid_donor_list | localhost:3333 |
+------------------------+----------------+
1 row in set (0.00 sec)

Recipient>CLONE INSTANCE FROM clone_user@localhost:3333 IDENTIFIED BY 'clone_password';
Query OK, 0 rows affected (1.60 sec)

Recipient>Restarting mysqld...
2019-08-27T07:23:41.827399Z mysqld_safe Number of processes running now: 0
2019-08-27T07:23:41.831700Z mysqld_safe mysqld restarted

Recipient>select STATE, CAST(BEGIN_TIME AS DATETIME) as "START TIME", CASE WHEN END_TIME IS NULL THEN LPAD(sys.format_time(POWER(10,12) * (UNIX_TIMESTAMP(now()) - UNIX_TIMESTAMP(BEGIN_TIME))), 10, ' ') ELSE LPAD(sys.format_time(POWER(10,12) * (UNIX_TIMESTAMP(END_TIME) - UNIX_TIMESTAMP(BEGIN_TIME))), 10, ' ') END as DURATION from performance_schema.clone_status;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    7
Current database: *** NONE ***

+-----------+---------------------+------------+
| STATE     | START TIME          | DURATION   |
+-----------+---------------------+------------+
| Completed | 2019-08-27 09:23:36 |     6.29 s |
+-----------+---------------------+------------+
1 row in set (0.01 sec)