Amazon Relational Database Service (Amazon RDS)

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  • Amazon Aurora

    AWS Black Belt Online Seminar 2016

  • AWS Black Belt Online Seminar AWSJTechAWS

    18:00~19:00AWS(EC2RDSLambda etc.)

    12:00~13:00AWS(IoT etc.)

    & http://aws.amazon.com/jp/about-aws/events/#webinar

    http://aws.amazon.com/jp/about-aws/events/#webinar

  • 2016729AWS(http://aws.amazon.com/ )

    AWSAWS

    AWS does not offer binding price quotes. AWS pricing is publicly available and is subject to change in accordance with the AWS Customer Agreement available at http://aws.amazon.com/agreement/. Any pricing information included in this document is provided only as an estimate of usage charges for AWS services based on certain information that you have provided. Monthly charges will be based on your actual use of AWS services, and may vary from the estimates provided.

    http://aws.amazon.com/

  • 2016/7/29

  • Amazon Aurora

  • S3

    DBA

    Amazon RDS

  • Virginia / Oregon / Ireland / Sydney / Tokyo / Seoul / Mumbai

  • Amazon Aurora

    MySQL5.6

  • 1970

    AWS

  • MySQL

    Business Intelligence Data Integration Query and Monitoring SI and Consulting

    Source: Amazon

    Amazon Aurora- Dan Jewett, Vice President of Product Management at Tableau

  • 8GB

    16GB

    32GB

    60GB

    122GB

    244GB

    4core 8core 16core 32core

    r3.8xl

    2core1core

    r3.4xl

    r3.2xl

    r3.xl

    r3.large

    4GB

    1GB

    Mem

    ory

    vCPU

  • Service Oriented Architecture

    EC2, Amazon DynamoDB, Amazon SWFAWS

    Amazon S399.999999999%

    Data Plane

    Logging + Storage

    SQL

    Transactions

    Caching

    Amazon S3

    Control Plane

    Amazon DynamoDB

    Amazon SWF

    Amazon Route 53

  • + = DB

    SQL

    Transactions

    Caching

    SQL

    Transactions

    Caching

    SQL

    Transactions

    Caching

    DBDB

  • AES-256 ()

    Amazon S3

    AWS KMS

    SSL

    Amazon VPC

    Storage

    SQL

    Transactions

    Caching

    Amazon S3

    Application

  • Aurora

    SSD

    Log structured Storage

    SQL

    Transactions

    AZ 1 AZ 2 AZ 3

    Caching

    Amazon S3

  • Aurora

    S3

    64TB

  • 2 3

    SQL

    Transaction

    AZ 1 AZ 2 AZ 3

    Caching

    SQL

    Transaction

    AZ 1 AZ 2 AZ 3

    Caching

  • IO traffic in Aurora ()

    LOG RECORDS

    Primary

    instance

    INCOMING QUEUE

    STORAGE NODE

    S3 BACKUP

    1

    2

    3

    4

    5

    6

    7

    8

    UPDATE

    QUEUE

    ACK

    HOT

    LOG

    DATA

    BLOCKS

    POINT IN TIME

    SNAPSHOT

    GC

    SCRUB

    COALESCE

    SORT

    GROUP

    PEER-TO-PEER GOSSIPPeer

    storage

    nodes

    1 2

    MySQL1/46 (unamplified, per node)

    OBSERVATIONS

    IO FLOW

    SSDACK

    S3

    CRC

  • Aurora Master

    30% Read

    70% Write

    Aurora Replica

    100% New

    Reads

    Shared Multi-AZ Storage

    MySQL Master

    30% Read

    70% Write

    MySQL Replica

    30% New Reads

    70% Write

    Binlog

    Data Volume Data Volume

    MySQL read scaling

    binlog / relay log

    PAGE CACHE

    UPDATE

  • : Aurora vs. RDS for MySQL

    Primary

    r3.8XL

    Standby

    r3.8XL

    Replica

    r3.8XLReplica

    R3.8XL

    Storage6 TB / 10 K PIOP

    Storage6 TB / 10 K PIOP

    Storage6 TB / 5 K PIOP

    Storage6 TB / 5 K PIOP

    $1.33/hr

    $1.33/hr

    $1.33/hr $1.33/hr

    $2,42/hr

    $2,42/hr $2,42/hr

    Instance cost: $5.32 / hr

    Storage cost: $8.30 / hr

    Total cost: $13.62 / hr

    $2,42/hr

  • : Aurora vs. RDS for MySQL

    Instance cost: $4.86 / hr

    Storage cost: $4.43 / hr

    Total cost: $9.29 / hr

    Primary

    r3.8XL

    Replica

    r3.8XL

    Replica

    R3.8XL

    Storage / 6 TB

    $1.62 / hr $1.62 / hr $1.62 / hr

    $4.43 / hr

    31.8%

    Savings

    No POIPs pay for use I/O

  • Throughput Select Commit DML/DDL

    Latency Select Commit DML/DDL

    Cache Hit Ratio Buffer Cache Result Set

    Deadlocks Login Failures Blocked Transactions

  • IOPS Billed storage

    Billed read operations

    Billed write operations

  • 1 RDS for MySQL

    15

    Multi-AZAZ RDS for MySQL

  • WriterReaderWriter()

    Aurora(Endpoint)

    Reader

    Writer

  • Availability Zone A Availability Zone B

    VPC subnet VPC subnet

    VPC subnet VPC subnet

    Aurora Writer Aurora Reader

    Aurora

    Aurora WriterCNAME

    ReadReader

    Write

  • Aurora

    Availability Zone A Availability Zone B

    VPC subnet VPC subnet

    VPC subnet VPC subnet

    Aurora Writer Aurora Writer

    Write

  • AuroraRDS MySQL

    WriterReaderReaderAurora

    Reader

  • ApprunningFailure detection DNS propagation

    Recovery Recovery

    DBfailure

    MySQL

    App

    running

    Failure detection DNS propagation

    Recovery

    DB

    failure

    AURORA WITH MARIADB DRIVER

    1 5 - 2 0 s e c

    3 - 2 0 s e c

  • Streaming snapshotPITR

    Amazon AuroraAmazon S3 Backup retention period

    Amazon Aurora

    PITR5Backup Retention Period

  • MySQL

    Amazon Aurora

    Disk readredo log

    Checkpointed Data Redo Log

    T0

    T0 T0

    T0 redo

  • SQL

    SQL

    :ALTER SYSTEM CRASH [{INSTANCE | DISPATCHER | NODE}]

    :ALTER SYSTEM SIMULATE percentage_of_failure PERCENT

    READ REPLICA FAILURE [ TO ALL | TO "replica name" ]FOR INTERVAL quantity [ YEAR | QUARTER | MONTH | WEEK| DAY | HOUR |

    MINUTE | SECOND ];

  • WRITE PERFORMANCE READ PERFORMANCE

    MySQL SysBench results

    R3.8XL: 32 cores / 244 GB RAM

    5X faster than RDS MySQL 5.6 & 5.7

    SysBench

    MySQL5

    0

    25,000

    50,000

    75,000

    100,000

    125,000

    150,000

    0

    100,000

    200,000

    300,000

    400,000

    500,000

    600,000

    700,000

    Aurora MySQL 5.6 MySQL 5.7

  • WRITE PERFORMANCE READ PERFORMANCE

    AuroraRead/Write

    Aurora MySQL 5.6 MySQL 5.7

  • Beyond benchmarks

    POSSIBLE DISTORTIONS

    HA

  • Amazon AuroraMySQL

    CPU

    Amazon Aurora

    buffer poolcache hit

  • Amazon Aurora

  • I/O

    DO LESS WORK

    BE MORE EFFICIENT

    I/O

    PACKETS/SECOND

  • IO traffic in RDS MySQL

    BINLOG DATA DOUBLE-WRITELOGFRM

    FILES

    T Y P E O F W R I T E

    MYSQL WITH STANDBY

    EBS EBSack

    EBS

    IO FLOW

    1, 3, 5

    2

    OBSERVATIONS

    780K

    1007,388K I/Os (, )

    17.4 I/Os

    PERFORMANCE

    30 minute SysBench write-only workload, 100 GB data set, RDS SingleAZ, 30K

    PIOPS

    EBS mirrorEBS mirror

    AZ 1 AZ 2

    Amazon S3

    EBSAmazon Elastic

    Block Store (EBS)

    Primary

    instance

    Standby

    instance

    1

    2

    3

    4

    5

  • IO traffic in Aurora ()

    AZ 1 AZ 3

    Primary

    instance

    Amazon S3

    AZ 2

    Replica

    instance

    AMAZON AURORA

    ASYNC

    4/6 QUORUM

    DISTRIBUTED

    WRITES

    BINLOG DATA DOUBLE-WRITELOG FRM

    FILES

    T Y P E O F W R I T E

    30 minute SysBench write-only workload, 100 GB data set

    IO FLOW

    REDO;

    (, )

    6, 1/9

    OBSERVATIONS

    27,378K 35X MORE

    100950K I/Os 7.7X LESS(6X amplification)

    PERFORMANCE

    REDO LSN

  • Amazon Aurora MariaDBMySQL EEAmazon

    Aurora

    ClientThread

    Thread

    Thread

    Thread

    Client

    MySQL

    ClientThread

    Thread

    Thread

    Thread

    Client

    Aurora

    Thread Pool

  • r3.8xlAmazon Aurora5,000

    Standard MySQL 1

    MySQL EE

    CLIE

    NT

    CO

    NN

    EC

    TIO

    N

    CLIE

    NT

    CO

    NN

    EC

    TIO

    N

    LATCH FREE

    TASK QUEUE

    ep

    oll(

    )

    MYSQL THREAD MODEL AURORA THREAD MODEL

    Adaptive Thread Pool

  • Read

    Write

    Commit

    Read

    Read

    T1

    Commit (T1)

    Commit (T2)

    Commit (T3)

    LSN 10

    LSN 12

    LSN 22

    LSN 50

    LSN 30

    LSN 34

    LSN 41

    LSN 47

    LSN 20

    LSN 49

    Commit (T4)

    Commit (T5)

    Commit (T6)

    Commit (T7)

    Commit (T8)

    LSN GROWTHDurable LSN at head-node

    COMMIT QUEUEPending commits in LSN order

    TIME

    GROUP

    COMMIT

    TRANSACTIONS

    Read

    Write

    Commit

    Read

    Read

    T1

    Read

    Write

    Commit

    Read

    Read

    Tn

    TRADITIONAL APPROACHAMAZON AURORA

    I/O

    64ACK

  • read/write I/O

    malloc

    Undo

    binlog

    (read-ahead)

    read/write

    mutex

  • Amazon Aurora

  • Amazon Aurora CPU

    Query Cache

  • DB1

  • MySQL

    Percona XtrabackupAmazon EC2MySQLAmazon Aurora

    mysqldump20

    S3 Management ConsoleCLI tools

    AWS Import/Export SnowballS3

    MySQLAmazon Aurora

  • WriterReader

    API

    DRDB

    DB

    binlog_format(MIXED)

  • Aurora

    Aurora AWS()

    AWSAurora

  • AuroraSnapshot

    AuroraKMSAurora

    Snapshotrestore

    Sna