wordpress default table

Analyze slow MySQL queries with pt-query-digest

tuning-primer.sh result with parameter tmp_table_size, max_heap_table_size

tuning-primer.sh [TEMP TABLES] เริ่มเรื่องจากการรัน tuning-primer.sh เพื่อดูการทำงาน/parameters ของ MySQL เป็นอย่างไรบ้าง ? พบว่ามีข้อความสีแดงแจ้ง notice เรื่องการ create temporary tables on Disk ในสัดส่วนที่เยอะ หลังจากเพิ่ง restart MySQL ไปเพื่อ enable slow_query_log_file ประมาณ 5 นาทีได้ ตามรูป ที่ใช้งานอยู่ยังเป็น… Read the rest

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