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WL7639 Ndb Active Active Manageability improvements
Implementation of ndb_slave_conflict_role control variable. This control variable allows the slave role in a future asymmetric conflict detection algorithm to be modified online. No conflict algorithm supports this control yet. The roles are : NONE, SECONDARY, PRIMARY, PASS. The role can only be changed when the slave SQL thread is not running.
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8 files changed

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lines changed

‎mysql-test/suite/ndb/r/ndb_basic.result

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@@ -135,6 +135,7 @@ ndb_recv_thread_cpu_mask #
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ndb_report_thresh_binlog_epoch_slip #
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ndb_report_thresh_binlog_mem_usage #
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ndb_show_foreign_key_mock_tables #
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ndb_slave_conflict_role #
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ndb_table_no_logging #
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ndb_table_temporary #
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ndb_use_copying_alter_table #

‎mysql-test/suite/ndb_rpl/r/ndb_rpl_slave_conflict_role_var.result

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include/master-slave.inc
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Warnings:
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Note #### Sending passwords in plain text without SSL/TLS is extremely insecure.
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Note #### Storing MySQL user name or password information in the master info repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START SLAVE; see the 'START SLAVE Syntax' in the MySQL Manual for more information.
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[connection master]
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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Slave_SQL_Running = 'Yes'
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stop slave sql_thread;
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Slave_SQL_Running = 'No'
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Show set-to-same state is ok
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set global ndb_slave_conflict_role = NONE;
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Now transition through all status, including set-to-self
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set global ndb_slave_conflict_role = "PRIMARY";
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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set global ndb_slave_conflict_role = "PRIMARY";
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set global ndb_slave_conflict_role = "SECONDARY";
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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set global ndb_slave_conflict_role = "SECONDARY";
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "SECONDARY";
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set global ndb_slave_conflict_role = "PRIMARY";
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = "PASS";
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set global ndb_slave_conflict_role = "NONE";
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Now test illegal transitions
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set global ndb_slave_conflict_role = "PRIMARY";
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set global ndb_slave_conflict_role = "PASS";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PRIMARY to PASS failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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set global ndb_slave_conflict_role = "SECONDARY";
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set global ndb_slave_conflict_role = "PASS";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from SECONDARY to PASS failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PASS";
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set global ndb_slave_conflict_role = "PRIMARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PASS to PRIMARY failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = "SECONDARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PASS to SECONDARY failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = "NONE";
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Now test transitions not possible due to
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Slave SQL thread running
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start slave sql_thread;
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Slave_SQL_Running = 'Yes'
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From NONE
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PRIMARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from NONE to PRIMARY failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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set global ndb_slave_conflict_role = "SECONDARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from NONE to SECONDARY failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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set global ndb_slave_conflict_role = "PASS";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from NONE to PASS failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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stop slave sql_thread;
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From PRIMARY
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set global ndb_slave_conflict_role = "PRIMARY";
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start slave sql_thread;
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set global ndb_slave_conflict_role = "PRIMARY";
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set global ndb_slave_conflict_role = "SECONDARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PRIMARY to SECONDARY failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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set global ndb_slave_conflict_role = "NONE";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PRIMARY to NONE failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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set global ndb_slave_conflict_role = "PASS";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PRIMARY to PASS failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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stop slave sql_thread;
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From SECONDARY
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set global ndb_slave_conflict_role = "SECONDARY";
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start slave sql_thread;
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set global ndb_slave_conflict_role = "SECONDARY";
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set global ndb_slave_conflict_role = "PRIMARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from SECONDARY to PRIMARY failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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set global ndb_slave_conflict_role = "NONE";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from SECONDARY to NONE failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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set global ndb_slave_conflict_role = "PASS";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from SECONDARY to PASS failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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stop slave sql_thread;
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From PASS
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PASS";
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start slave sql_thread;
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set global ndb_slave_conflict_role = "PASS";
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set global ndb_slave_conflict_role = "PRIMARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PASS to PRIMARY failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = "SECONDARY";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PASS to SECONDARY failed : Invalid role change.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = "NONE";
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ERROR HY000: Error when executing command SET GLOBAL ndb_slave_conflict_role: Role change from PASS to NONE failed : Cannot change role while Slave SQL thread is running. Use STOP SLAVE first.
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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stop slave sql_thread;
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set global ndb_slave_conflict_role = "NONE";
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Test some aliases for role names
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set global ndb_slave_conflict_role = PR;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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set global ndb_slave_conflict_role = S;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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set global ndb_slave_conflict_role = N;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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set global ndb_slave_conflict_role = PA;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = 0;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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set global ndb_slave_conflict_role = 2;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PRIMARY
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set global ndb_slave_conflict_role = 1;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role SECONDARY
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set global ndb_slave_conflict_role = 0;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role NONE
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set global ndb_slave_conflict_role = 3;
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show global variables like 'ndb_slave_conflict_role';
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Variable_name Value
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ndb_slave_conflict_role PASS
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set global ndb_slave_conflict_role = NON;
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start slave sql_thread;
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include/rpl_end.inc

‎mysql-test/suite/ndb_rpl/t/ndb_rpl_slave_conflict_role_var.test

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--source include/have_ndb.inc
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--source suite/ndb_rpl/ndb_master-slave.inc
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connection slave;
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show global variables like 'ndb_slave_conflict_role';
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#show slave status;
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--let $status_items=Slave_SQL_Running
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--source include/show_slave_status.inc
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stop slave sql_thread;
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--source include/show_slave_status.inc
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--echo Show set-to-same state is ok
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set global ndb_slave_conflict_role = NONE;
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--echo Now transition through all status, including set-to-self
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set global ndb_slave_conflict_role = "PRIMARY";
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = "PRIMARY";
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set global ndb_slave_conflict_role = "SECONDARY";
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = "SECONDARY";
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "SECONDARY";
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set global ndb_slave_conflict_role = "PRIMARY";
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = "PASS";
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set global ndb_slave_conflict_role = "NONE";
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--echo Now test illegal transitions
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set global ndb_slave_conflict_role = "PRIMARY";
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--error 1220
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = "SECONDARY";
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--error 1220
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PASS";
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--error 1220
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set global ndb_slave_conflict_role = "PRIMARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "SECONDARY";
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = "NONE";
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--echo Now test transitions not possible due to
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--echo Slave SQL thread running
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start slave sql_thread;
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--source include/show_slave_status.inc
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--echo From NONE
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set global ndb_slave_conflict_role = "NONE";
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--error 1220
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set global ndb_slave_conflict_role = "PRIMARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "SECONDARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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stop slave sql_thread;
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--echo From PRIMARY
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set global ndb_slave_conflict_role = "PRIMARY";
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start slave sql_thread;
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set global ndb_slave_conflict_role = "PRIMARY";
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--error 1220
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set global ndb_slave_conflict_role = "SECONDARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "NONE";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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stop slave sql_thread;
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--echo From SECONDARY
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set global ndb_slave_conflict_role = "SECONDARY";
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start slave sql_thread;
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set global ndb_slave_conflict_role = "SECONDARY";
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--error 1220
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set global ndb_slave_conflict_role = "PRIMARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "NONE";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "PASS";
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show global variables like 'ndb_slave_conflict_role';
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stop slave sql_thread;
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--echo From PASS
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set global ndb_slave_conflict_role = "NONE";
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set global ndb_slave_conflict_role = "PASS";
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start slave sql_thread;
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set global ndb_slave_conflict_role = "PASS";
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--error 1220
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set global ndb_slave_conflict_role = "PRIMARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "SECONDARY";
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show global variables like 'ndb_slave_conflict_role';
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--error 1220
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set global ndb_slave_conflict_role = "NONE";
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show global variables like 'ndb_slave_conflict_role';
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stop slave sql_thread;
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set global ndb_slave_conflict_role = "NONE";
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--echo Test some aliases for role names
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set global ndb_slave_conflict_role = PR;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = S;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = N;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = PA;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = 0;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = 2;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = 1;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = 0;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = 3;
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show global variables like 'ndb_slave_conflict_role';
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set global ndb_slave_conflict_role = NON;
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start slave sql_thread;
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--source include/rpl_end.inc

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