VARIABLE_COMMENT The AUTOINC lock modes supported by InnoDB: 0 => Old style AUTOINC locking (for backward compatibility) 1 => New style AUTOINC locking 2 => No AUTOINC locking (unsafe for SBR)
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 2
@@ -291,7 +291,7 @@
@@ -263,7 +263,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
-VARIABLE_TYPE BIGINT UNSIGNED
+VARIABLE_TYPE INT UNSIGNED
VARIABLE_COMMENT Dump only the hottest N% of each buffer pool, defaults to 100
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 100
@@ -305,7 +305,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -67,7 +76,7 @@
VARIABLE_COMMENT Number of buffer pool instances, set to higher value on high-end machines to increase scalability
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 64
@@ -361,7 +361,7 @@
@@ -375,7 +375,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -76,7 +85,7 @@
VARIABLE_COMMENT A number between [0, 100] that tells how oftern buffer pool dump status in percentages should be printed. E.g. 10 means that buffer pool dump status is printed when every 10% of number of buffer pool pages are dumped. Default is 0 (only start and end status is printed).
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 100
@@ -473,7 +473,7 @@
@@ -487,7 +487,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -85,7 +94,7 @@
VARIABLE_COMMENT Helps in performance tuning in heavily concurrent environments.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1000
@@ -501,7 +501,7 @@
@@ -515,7 +515,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 5
VARIABLE_SCOPE GLOBAL
...
...
@@ -94,7 +103,7 @@
VARIABLE_COMMENT If the compression failure rate of a table is greater than this number more padding is added to the pages to reduce the failures. A value of zero implies no padding
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 100
@@ -529,7 +529,7 @@
@@ -543,7 +543,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 50
VARIABLE_SCOPE GLOBAL
...
...
@@ -103,7 +112,7 @@
VARIABLE_COMMENT Percentage of empty space on a data page that can be reserved to make the page compressible.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 75
@@ -543,10 +543,10 @@
@@ -557,10 +557,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 5000
VARIABLE_SCOPE GLOBAL
...
...
@@ -116,7 +125,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -739,7 +739,7 @@
@@ -753,7 +753,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 120
VARIABLE_SCOPE GLOBAL
...
...
@@ -125,7 +134,7 @@
VARIABLE_COMMENT Number of pages reserved in doublewrite buffer for batch flushing
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 127
@@ -823,7 +823,7 @@
@@ -837,7 +837,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE GLOBAL
...
...
@@ -134,7 +143,7 @@
VARIABLE_COMMENT Speeds up the shutdown process of the InnoDB storage engine. Possible values are 0, 1 (faster) or 2 (fastest - crash-like).
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 2
@@ -837,7 +837,7 @@
@@ -851,7 +851,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 600
VARIABLE_SCOPE GLOBAL
...
...
@@ -143,7 +152,7 @@
VARIABLE_COMMENT Maximum number of seconds that semaphore times out in InnoDB.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 4294967295
@@ -907,7 +907,7 @@
@@ -921,7 +921,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -152,7 +161,7 @@
VARIABLE_COMMENT Make the first page of the given tablespace dirty.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
@@ -921,7 +921,7 @@
@@ -935,7 +935,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 30
VARIABLE_SCOPE GLOBAL
...
...
@@ -161,7 +170,7 @@
VARIABLE_COMMENT Number of iterations over which the background flushing is averaged.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1000
@@ -949,7 +949,7 @@
@@ -963,7 +963,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE GLOBAL
...
...
@@ -170,7 +179,7 @@
VARIABLE_COMMENT Controls the durability/speed trade-off for commits. Set to 0 (write and flush redo log to disk only once per second), 1 (flush to disk at each commit), 2 (write to log at commit but flush to disk only once per second) or 3 (flush to disk at prepare and at commit, slower and usually redundant). 1 and 3 guarantees that after a crash, committed transactions will not be lost and will be consistent with the binlog and other transactional engines. 2 can get inconsistent and lose transactions if there is a power failure or kernel crash but not if mysqld crashes. 0 has no guarantees in case of crash. 0 and 2 can be faster than 1 or 3.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 3
@@ -977,7 +977,7 @@
@@ -991,7 +991,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE GLOBAL
...
...
@@ -179,7 +188,7 @@
VARIABLE_COMMENT Set to 0 (don't flush neighbors from buffer pool), 1 (flush contiguous neighbors from buffer pool) or 2 (flush neighbors from buffer pool), when flushing a block
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 2
@@ -1019,7 +1019,7 @@
@@ -1033,7 +1033,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -188,7 +197,7 @@
VARIABLE_COMMENT Helps to save your data in case the disk image of the database becomes corrupt.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 6
@@ -1033,7 +1033,7 @@
@@ -1047,7 +1047,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -197,7 +206,7 @@
VARIABLE_COMMENT Kills the server during crash recovery.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 10
@@ -1061,7 +1061,7 @@
@@ -1075,7 +1075,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 8000000
VARIABLE_SCOPE GLOBAL
...
...
@@ -206,7 +215,7 @@
VARIABLE_COMMENT InnoDB Fulltext search cache size in bytes
NUMERIC_MIN_VALUE 1600000
NUMERIC_MAX_VALUE 80000000
@@ -1103,7 +1103,7 @@
@@ -1117,7 +1117,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 84
VARIABLE_SCOPE GLOBAL
...
...
@@ -215,7 +224,7 @@
VARIABLE_COMMENT InnoDB Fulltext search maximum token size in characters
NUMERIC_MIN_VALUE 10
NUMERIC_MAX_VALUE 84
@@ -1117,7 +1117,7 @@
@@ -1131,7 +1131,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 3
VARIABLE_SCOPE GLOBAL
...
...
@@ -224,7 +233,7 @@
VARIABLE_COMMENT InnoDB Fulltext search minimum token size in characters
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 16
@@ -1131,7 +1131,7 @@
@@ -1145,7 +1145,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2000
VARIABLE_SCOPE GLOBAL
...
...
@@ -233,7 +242,7 @@
VARIABLE_COMMENT InnoDB Fulltext search number of words to optimize for each optimize table call
NUMERIC_MIN_VALUE 1000
NUMERIC_MAX_VALUE 10000
@@ -1145,7 +1145,7 @@
@@ -1159,7 +1159,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2000000000
VARIABLE_SCOPE GLOBAL
...
...
@@ -242,7 +251,7 @@
VARIABLE_COMMENT InnoDB Fulltext search query result cache limit in bytes
NUMERIC_MIN_VALUE 1000000
NUMERIC_MAX_VALUE 4294967295
@@ -1173,7 +1173,7 @@
@@ -1187,7 +1187,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 2
VARIABLE_SCOPE GLOBAL
...
...
@@ -251,7 +260,7 @@
VARIABLE_COMMENT InnoDB Fulltext search parallel sort degree, will round up to nearest power of 2 number
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 16
@@ -1187,7 +1187,7 @@
@@ -1201,7 +1201,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 640000000
VARIABLE_SCOPE GLOBAL
...
...
@@ -260,7 +269,7 @@
VARIABLE_COMMENT Total memory allocated for InnoDB Fulltext Search cache
NUMERIC_MIN_VALUE 32000000
NUMERIC_MAX_VALUE 1600000000
@@ -1215,7 +1215,7 @@
@@ -1229,7 +1229,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 100
VARIABLE_SCOPE GLOBAL
...
...
@@ -269,7 +278,7 @@
VARIABLE_COMMENT Up to what percentage of dirty pages should be flushed when innodb finds it has spare resources to do so.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 100
@@ -1257,10 +1257,10 @@
@@ -1271,10 +1271,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 200
VARIABLE_SCOPE GLOBAL
...
...
@@ -282,7 +291,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -1269,12 +1269,12 @@
@@ -1283,12 +1283,12 @@
SESSION_VALUE NULL
GLOBAL_VALUE 2000
GLOBAL_VALUE_ORIGIN COMPILE-TIME
...
...
@@ -298,7 +307,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -1327,7 +1327,7 @@
@@ -1341,7 +1341,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 50
VARIABLE_SCOPE SESSION
...
...
@@ -307,9 +316,9 @@
VARIABLE_COMMENT Timeout in seconds an InnoDB transaction may wait for a lock before being rolled back. Values above 100000000 disable the timeout.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1073741824
@@ -1341,10 +1341,10 @@
@@ -1355,10 +1355,10 @@
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 8388608
DEFAULT_VALUE 16777216
VARIABLE_SCOPE GLOBAL
-VARIABLE_TYPE BIGINT
+VARIABLE_TYPE INT
...
...
@@ -320,7 +329,7 @@
NUMERIC_BLOCK_SIZE 1024
ENUM_VALUE_LIST NULL
READ_ONLY YES
@@ -1383,7 +1383,7 @@
@@ -1397,7 +1397,7 @@
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 2
VARIABLE_SCOPE GLOBAL
...
...
@@ -329,7 +338,7 @@
VARIABLE_COMMENT Number of log files in the log group. InnoDB writes to the files in a circular fashion.
NUMERIC_MIN_VALUE 2
NUMERIC_MAX_VALUE 100
@@ -1425,10 +1425,10 @@
@@ -1439,10 +1439,10 @@
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 1024
VARIABLE_SCOPE GLOBAL
...
...
@@ -342,7 +351,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -1467,10 +1467,10 @@
@@ -1481,10 +1481,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -355,7 +364,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -1481,7 +1481,7 @@
@@ -1495,7 +1495,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -364,7 +373,7 @@
VARIABLE_COMMENT Maximum delay of user threads in micro-seconds
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 10000000
@@ -1495,7 +1495,7 @@
@@ -1509,7 +1509,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -373,7 +382,7 @@
VARIABLE_COMMENT Number of identical copies of log groups we keep for the database. Currently this should be set to 1.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 10
@@ -1565,7 +1565,7 @@
@@ -1579,7 +1579,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 8
VARIABLE_SCOPE GLOBAL
...
...
@@ -382,7 +391,7 @@
VARIABLE_COMMENT Number of multi-threaded flush threads
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 64
@@ -1621,10 +1621,10 @@
@@ -1635,10 +1635,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -395,7 +404,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY YES
@@ -1649,7 +1649,7 @@
@@ -1663,7 +1663,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 16
VARIABLE_SCOPE GLOBAL
...
...
@@ -404,7 +413,7 @@
VARIABLE_COMMENT Number of rw_locks protecting buffer pool page_hash. Rounded up to the next power of 2
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1024
@@ -1663,7 +1663,7 @@
@@ -1677,7 +1677,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 16384
VARIABLE_SCOPE GLOBAL
...
...
@@ -413,7 +422,7 @@
VARIABLE_COMMENT Page size to use for all InnoDB tablespaces.
NUMERIC_MIN_VALUE 4096
NUMERIC_MAX_VALUE 65536
@@ -1705,7 +1705,7 @@
@@ -1719,7 +1719,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 300
VARIABLE_SCOPE GLOBAL
...
...
@@ -422,7 +431,7 @@
VARIABLE_COMMENT Number of UNDO log pages to purge in one batch from the history list.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 5000
@@ -1747,7 +1747,7 @@
@@ -1761,7 +1761,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE GLOBAL
...
...
@@ -431,7 +440,7 @@
VARIABLE_COMMENT Purge threads can be from 1 to 32. Default is 1.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 32
@@ -1775,7 +1775,7 @@
@@ -1789,7 +1789,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 56
VARIABLE_SCOPE GLOBAL
...
...
@@ -440,7 +449,7 @@
VARIABLE_COMMENT Number of pages that must be accessed sequentially for InnoDB to trigger a readahead.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 64
@@ -1789,7 +1789,7 @@
@@ -1803,7 +1803,7 @@
GLOBAL_VALUE_ORIGIN CONFIG
DEFAULT_VALUE 4
VARIABLE_SCOPE GLOBAL
...
...
@@ -449,7 +458,7 @@
VARIABLE_COMMENT Number of background read I/O threads in InnoDB.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 64
@@ -1817,10 +1817,10 @@
@@ -1831,10 +1831,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -462,7 +471,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -1845,7 +1845,7 @@
@@ -1859,7 +1859,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 128
VARIABLE_SCOPE GLOBAL
...
...
@@ -471,7 +480,7 @@
VARIABLE_COMMENT Number of undo logs to use (deprecated).
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 128
@@ -1859,7 +1859,7 @@
@@ -1873,7 +1873,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -480,7 +489,7 @@
VARIABLE_COMMENT An InnoDB page number.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 4294967295
@@ -1915,7 +1915,7 @@
@@ -1929,7 +1929,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1048576
VARIABLE_SCOPE GLOBAL
...
...
@@ -489,7 +498,7 @@
VARIABLE_COMMENT Memory buffer size for index creation
NUMERIC_MIN_VALUE 65536
NUMERIC_MAX_VALUE 67108864
@@ -1929,10 +1929,10 @@
@@ -1943,10 +1943,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 6
VARIABLE_SCOPE GLOBAL
...
...
@@ -502,7 +511,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -2125,7 +2125,7 @@
@@ -2139,7 +2139,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 1
VARIABLE_SCOPE GLOBAL
...
...
@@ -511,7 +520,7 @@
VARIABLE_COMMENT Size of the mutex/lock wait array.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 1024
@@ -2139,10 +2139,10 @@
@@ -2153,10 +2153,10 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 30
VARIABLE_SCOPE GLOBAL
...
...
@@ -524,7 +533,7 @@
NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
@@ -2167,7 +2167,7 @@
@@ -2181,7 +2181,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -533,7 +542,7 @@
VARIABLE_COMMENT Helps in performance tuning in heavily concurrent environments. Sets the maximum number of threads allowed inside InnoDB. Value 0 will disable the thread throttling.
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1000
@@ -2181,7 +2181,7 @@
@@ -2195,7 +2195,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 10000
VARIABLE_SCOPE GLOBAL
...
...
@@ -542,7 +551,7 @@
VARIABLE_COMMENT Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0 disable a sleep
NUMERIC_MIN_VALUE 0
NUMERIC_MAX_VALUE 1000000
@@ -2237,7 +2237,7 @@
@@ -2251,7 +2251,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 128
VARIABLE_SCOPE GLOBAL
...
...
@@ -551,7 +560,7 @@
VARIABLE_COMMENT Number of undo logs to use.
NUMERIC_MIN_VALUE 1
NUMERIC_MAX_VALUE 128
@@ -2251,7 +2251,7 @@
@@ -2265,7 +2265,7 @@
GLOBAL_VALUE_ORIGIN COMPILE-TIME
DEFAULT_VALUE 0
VARIABLE_SCOPE GLOBAL
...
...
@@ -560,7 +569,7 @@
VARIABLE_COMMENT Number of undo tablespaces to use.