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SELECT @@wsrep_on;
@@wsrep_on
1
SET @wsrep_slave_threads_global_saved = @@global.wsrep_slave_threads;
SET @wsrep_debug_saved = @@global.wsrep_debug;
SET @wsrep_provider_options_saved= @@global.wsrep_provider_options;
SET @wsrep_cluster_address_saved= @@global.wsrep_cluster_address;
SET GLOBAL wsrep_provider=none;
SET SESSION wsrep_trx_fragment_size=DEFAULT;
ERROR HY000: Incorrect arguments to SET
SELECT @@session.wsrep_trx_fragment_size;
@@session.wsrep_trx_fragment_size
0
SET GLOBAL wsrep_start_position='12345678-1234-1234-1234-123456789012:100';
ERROR 42000: Variable 'wsrep_start_position' can't be set to the value of '12345678-1234-1234-1234-123456789012:100'
SHOW WARNINGS;
Level Code Message
Warning 1231 Cannot set 'wsrep_start_position' because wsrep is switched off or provider is not loaded
Error 1231 Variable 'wsrep_start_position' can't be set to the value of '12345678-1234-1234-1234-123456789012:100'
SELECT @@global.wsrep_start_position;
@@global.wsrep_start_position
00000000-0000-0000-0000-000000000000:-1
SET GLOBAL wsrep_debug=1;
Warnings:
Warning 1231 Setting 'wsrep_debug' has no effect because wsrep is switched off
SELECT @@global.wsrep_debug;
@@global.wsrep_debug
NONE
SET GLOBAL wsrep_slave_threads=5;
SELECT @@global.wsrep_slave_threads;
@@global.wsrep_slave_threads
5
SET GLOBAL wsrep_desync=1;
ERROR HY000: WSREP (galera) not started
SELECT @@global.wsrep_desync;
@@global.wsrep_desync
0
SET SESSION wsrep_trx_fragment_unit='rows';
ERROR HY000: Incorrect arguments to SET
SELECT @@session.wsrep_trx_fragment_unit;
@@session.wsrep_trx_fragment_unit
rows
SET @@global.wsrep_slave_threads = @wsrep_slave_threads_global_saved;
SET @@global.wsrep_debug = @wsrep_debug_saved;
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