11. Enhanced monitoring
50+ system/OS metrics | sorted process list view | 1–60 sec granularity
alarms on specific metrics | egress to Amazon CloudWatch Logs | integration with third-party tools
13. Important systems and OS metrics
User
System
Wait
IRQ
Idle
CPU Utilization
Rx per declared ethn
Tx per declared ethn
Network
Num processes
Num interruptible
Num non-interruptible
Num zombie
Processes
Process ID
Process name
VSS
Res
Mem %
consumed
CPU % used
CPU time
Parent ID
Process List
MemTotal
MemFree
Buffers
Cached
SwapCached
Active
Inactive
SwapTotal
SwapFree
Dirty
Writeback
Mapped
Slab
Memory
TPS
Blk_read
Blk_wrtn
read_kb
read_IOs
read_size
write_kb
write_IOs
write_size
avg_rw_size
avg_queue_len
Device IO
Free
capacity
Used
% Used
File System
22. Backport MySQL Bug fix
• Port Bug#16446108 SEGV IN FTSPARSE().
• Port Bug#19465984 INNODB DATA DICTIONARY IS NOT UPDATED WHILE RENAMING THE COLUMN.
• Port Bug#16834860 FTS CRASH AFTER RENAMING TABLE TO DIFFERENT DATABASE.
• Port Bug#18596756 - FAILED PREPARING OF TRIGGER ON TRUNCATED TABLES CAUSE ERROR 1054.
• Port Bug#18684393 - METADATA CHANGES MIGHT CAUSE PROBLEMS WITH TRIGGER EXECUTION.
• Port Bug#17566396: MATERIALIZATION IS NOT CHOSEN FOR LONG UTF8 VARCHAR FIELD.
• Port Bug#16697792: POOR EXECUTION PLAN WHEN ORDER BY WITH LIMIT X
• Port Bug#17083851 BACK
• Port Bug#11765744 TO 5.1, 5.5 AND 5.6
• Port Bug#20788853 MUTEX ISSUE IN SQL/SQL_SHOW.CC RESULTING IN SIG6. SOURCE LIKELY
FILL_VARIABLES
• Port Bug#18903155: BACK
• Port Bug-18008907 TO 5.5+ VERSIONS.
• Port Bug #17607956 Addressed incomplete fix in MySQL full text search affecting tables where the
database name begins with digit.
• Adapt fix for a stack overflow error in MySQL 5.7 for Bug#19678930
https://forums.aws.amazon.com/ann.jspa?annID=3455
https://forums.aws.amazon.com/ann.jspa?annID=3396
40. パフォーマンス
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
DB on
Instance
• 5系統の記事DBをアプリケー
ションレイヤーで水平分割
• Auroraは「最大 5 倍のス
ループットを提供」とのこと
• 1系統のAuroraに集約して
もいけるはず!
Aurora