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Displaying posts with tag: Day Out (reset)
Variable's Day Out #7: innodb_autoinc_lock_mode

Properties:

Applicable To InnoDB
Introduced In 5.1.22
Server Startup Option --innodb-autoinc-lock-mode=<value>
Scope Global
Dynamic No
Possible Values enum(0,1,2)
Interpretation:
Value Meaning
0 Traditional
1
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Variable's Day Out #6: Innodb_buffer_pool_reads

Properties:

Applicable To InnoDB
Type Status Variable
Scope GLOBAL | SESSION
Dynamic NA
Possible Values Integer
Default Value NA
Category Performance

Description:

According to the official documentation, this variable defines "The number of logical reads that InnoDB could not satisfy from the buffer pool …

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Variable's Day Out #5: innodb_thread_concurrency

Properties:

Applicable To InnoDB
Server Startup Option --innodb_thread_concurrency=<value>
Scope Global
Dynamic Yes
Possible Values Integer:
Range: 0 - 1000
Interpretation:
MySQL Version Value
4.x 0 - sets it to 1
>500 - Infinite Concurrency
< 5.0.19
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Variable's Day Out #4: innodb_buffer_pool_size

Properties:

Applicable To InnoDB
Server Startup Option --innodb_buffer_pool_size=<value>
Scope Global
Dynamic No
Possible Values Integer
Range: 1048576 (1MB) - 4294967295 (4GB)
(more for 64 bit machines)
Default Value 8388608 (8MB)
Category Performance

Description:

One of the Peter's "what to …

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Variable's Day Out #3: max_connect_errors

 Properties:

Applicable To MySQL Server
Server Startup Option --max_connect_errors=<value>
Scope Global
Dynamic Yes
Possible Values Integer
Range: 1 - 4294967295
Default Value 10
Category Security

Description:

This variable determines how many interrupted connections can occur from a host. If the number of interrupted connections from this host surpasses this number, that host is blocked from further connections. All of the …

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Variable's Day Out #2: key_buffer_size

Properties:

Engine(s) MyISAM
Server Startup Option --key_buffer_size=<value>
Scope Global
Dynamic Yes
Possible Values Integer
Range: 8 - 4294967295 (4 GB)
Default Value 131072 (128 KB)
Category Performance

Description:

This is a global buffer where MySQL caches frequently used blocks of index data for MyISAM data. Maximum allowed size is 4GB on a 32 bit platform. Greater values are permitted for 64-bit platforms beyond MySQL …

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