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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.
73 lines
2 KiB
Text
73 lines
2 KiB
Text
set @save_query_cache_size=@@query_cache_size;
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drop table if exists t1;
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create table t1 (a int not null);
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insert into t1 values (1), (2), (3);
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SET GLOBAL query_cache_size=1355776;
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flush query cache;
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reset query cache;
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flush global status;
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select * from t1;
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a
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1
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2
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3
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show global status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show global status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1;
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a
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1
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2
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3
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show global status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show global status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select spins from performance_schema.events_waits_current order by event_name limit 1;
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spins
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NULL
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select * from performance_schema.setup_timers where name='wait';
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NAME TIMER_NAME
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wait {CYCLE_OR_NANOSECOND}
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Warnings:
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Warning 1287 'performance_schema.setup_timers' is deprecated and will be removed in a future release
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show global status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show global status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select spins from performance_schema.events_waits_current order by event_name limit 1;
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spins
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NULL
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select * from performance_schema.setup_timers where name='wait';
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NAME TIMER_NAME
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wait {CYCLE_OR_NANOSECOND}
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Warnings:
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Warning 1287 'performance_schema.setup_timers' is deprecated and will be removed in a future release
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show global status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show global status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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SET GLOBAL query_cache_size=@save_query_cache_size;
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drop table t1;
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flush global status;
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