{
  "data": [
    {
      "cli": "--key-buffer-size=#",
      "default": "134217728",
      "dynamic": true,
      "id": "key_buffer_size",
      "name": "key_buffer_size",
      "range": {
        "from": 8,
        "to": "upwards"
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--key-cache-age-threshold=#",
      "default": "300",
      "dynamic": true,
      "id": "key_cache_age_threshold",
      "name": "key_cache_age_threshold",
      "range": {
        "from": 100,
        "to": 4294967295
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--key-cache-block-size=#",
      "default": "1024",
      "dynamic": true,
      "id": "key_cache_block_size",
      "name": "key_cache_block_size",
      "range": {
        "from": 512,
        "to": 16384
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--key-cache-division-limit=#",
      "default": "100",
      "dynamic": true,
      "id": "key_cache_division_limit",
      "name": "key_cache_division_limit",
      "range": {
        "from": 1,
        "to": 100
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--key-cache-file-hash-size=#",
      "default": "512",
      "dynamic": true,
      "id": "key_cache_file_hash_size",
      "name": "key_cache_file_hash_size",
      "range": {
        "from": 128,
        "to": 16384
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--key-cache-segments=#",
      "default": "0 (non-segmented)",
      "dynamic": true,
      "id": "key_cache_segments",
      "name": "key_cache_segments",
      "range": {
        "from": 0,
        "to": 64
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--myisam-block-size=#",
      "default": "1024",
      "dynamic": false,
      "id": "myisam_block_size",
      "name": "myisam_block_size",
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--myisam-data-pointer-size=#",
      "default": "6",
      "dynamic": true,
      "id": "myisam_data_pointer_size",
      "name": "myisam_data_pointer_size",
      "range": {
        "from": 2,
        "to": 7
      },
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "id": "myisam_max_extra_sort_file_size",
      "name": "myisam_max_extra_sort_file_size"
    },
    {
      "cli": "--myisam-max-sort-file-size=#",
      "dynamic": true,
      "id": "myisam_max_sort_file_size",
      "name": "myisam_max_sort_file_size",
      "scope": [
        "global"
      ],
      "type": "integer"
    },
    {
      "cli": "--myisam-mmap-size=#",
      "dynamic": true,
      "id": "myisam_mmap_size",
      "name": "myisam_mmap_size",
      "scope": [
        "global",
        "session"
      ],
      "type": "integer"
    },
    {
      "cli": "--myisam-recover-options[=name]",
      "default": "BACKUP,QUICK (>= MariaDB 10.2.4), DEFAULT (<= MariaDB 10.2.3, >= MariaDB 5.1.44), OFF (<= MariaDB 5.1.42)",
      "dynamic": false,
      "id": "myisam_recover_options",
      "name": "myisam_recover_options",
      "scope": [
        "global"
      ],
      "type": "enumeration",
      "validValues": [
        "OFF",
        "DEFAULT",
        "BACKUP",
        "BACKUP_ALL",
        "FORCE",
        "QUICK"
      ]
    },
    {
      "cli": "--myisam-repair-threads=#",
      "default": "1",
      "dynamic": true,
      "id": "myisam_repair_threads",
      "name": "myisam_repair_threads",
      "scope": [
        "global",
        "session"
      ],
      "type": "integer"
    },
    {
      "cli": "--myisam-sort-buffer-size=#",
      "default": "134217720 (128MB), 8388608 (8MB - before MariaDB 10.0.3)",
      "dynamic": true,
      "id": "myisam_sort_buffer_size",
      "name": "myisam_sort_buffer_size",
      "range": {
        "from": 4096,
        "to": 18446744073709548000
      },
      "scope": [
        "global",
        "session"
      ],
      "type": "integer"
    },
    {
      "cli": "--myisam-stats-method=name",
      "default": "nulls_equal",
      "dynamic": true,
      "id": "myisam_stats_method",
      "name": "myisam_stats_method",
      "scope": [
        "global",
        "session"
      ],
      "type": "enumeration",
      "validValues": [
        "nulls_equal",
        "nulls_unequal",
        "nulls_ignored"
      ]
    },
    {
      "cli": "--myisam-use-mmap",
      "default": "OFF",
      "dynamic": true,
      "id": "myisam_use_mmap",
      "name": "myisam_use_mmap",
      "scope": [
        "global"
      ],
      "type": "boolean"
    }
  ],
  "name": "myisam-system-variables",
  "url": "https://mariadb.com/kb/en/library/documentation/columns-storage-engines-and-plugins/storage-engines/myisam/myisam-system-variables/"
}