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775cba4d0f
- FLUSH GLOBAL STATUS now resets most global_status_vars.
At this stage, this is mainly to be used for testing.
- FLUSH SESSION STATUS added as an alias for FLUSH STATUS.
- FLUSH STATUS does not require any privilege (before required RELOAD).
- FLUSH GLOBAL STATUS requires RELOAD privilege.
- All global status reset moved to FLUSH GLOBAL STATUS.
- Replication semisync status variables are now reset by
FLUSH GLOBAL STATUS.
- In test cases, the only changes are:
- Replace FLUSH STATUS with FLUSH GLOBAL STATUS
- Replace FLUSH STATUS with FLUSH STATUS; FLUSH GLOBAL STATUS.
This was only done in a few tests where the test was using SHOW STATUS
for both local and global variables.
- Uptime_since_flush_status is now always provided, independent if
ENABLED_PROFILING is enabled when compiling MariaDB.
- @@global.Uptime_since_flush_status is reset on FLUSH GLOBAL STATUS
and @@session.Uptime_since_flush_status is reset on FLUSH SESSION STATUS.
- When connected, @@session.Uptime_since_flush_status is set to 0.
70 lines
2.1 KiB
Text
70 lines
2.1 KiB
Text
--source include/have_query_cache.inc
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--source include/galera_cluster.inc
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--source include/have_innodb.inc
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--disable_ps2_protocol
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#
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# Ensure that the query cache behaves properly with respect to Galera
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#
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# * in the absence of updates, the query cache does serve cached results
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# * any cache-invalidating query on the remote node also causes the local cache to be invalidated
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#
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CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1);
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--connection node_2
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RESET QUERY CACHE;
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FLUSH GLOBAL STATUS;
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#
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# 1. Cache works
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#
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SELECT COUNT(*) FROM t1;
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SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
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SELECT COUNT(*) FROM t1;
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SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
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#
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# 2. Cache is invalidated by DML on remote node
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#
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--connection node_1
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INSERT INTO t1 VALUES (2);
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--connection node_2
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FLUSH GLOBAL STATUS;
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SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
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SELECT COUNT(*) FROM t1;
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SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
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SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
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SELECT COUNT(*) FROM t1;
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SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
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#
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# 3. Cache is invalidated by DDL on remote node
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#
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--connection node_1
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ALTER TABLE t1 ADD COLUMN f2 INTEGER;
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--connection node_2
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FLUSH GLOBAL STATUS;
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SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
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SELECT COUNT(*) FROM t1;
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SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Qcache_queries_in_cache';
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SELECT VARIABLE_VALUE = 0 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
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SELECT COUNT(*) FROM t1;
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SELECT VARIABLE_VALUE = 1 FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME = 'Qcache_hits';
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DROP TABLE t1;
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--enable_ps2_protocol
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