只需要執行以下的指令，就可以知道特定S3 bucket的容量大小和裡面的檔案數量

aws s3api list-objects --bucket BUCKETNAME --output json --query "[sum(Contents[].Size), length(Contents[])]"

必備條件

這個Shell Script可以設定以下變數

#!/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/opt/aws/bin

# Please use env | grep EC2_HOME to find out your system's setting
EC2_HOME=/opt/aws/apitools/ec2

# Please use env | grep JAVA_HOME to find out your system's setting
JAVA_HOME=/usr/lib/jvm/jre

export EC2_HOME JAVA_HOME

# Regions reference: http://docs.aws.amazon.com/general/latest/gr/rande.html
region="ap-northeast-1"

# You can find your instance ID at AWS Manage Console
instanceID="YOUR-INSTANCE-ID"

# Your prefer AMI Name prefix
amiNamePrefix="AMI_"

# Your prefer AMI Description
amiDescription="Daily AMI backup"

# If you want to keep 7 days AMI backups, please set routine true otherwise set it false
routine=true

# Variable for routine is true
weekday=$(date +%a)

if [ $routine = true ]; then
    # Setup AMI Name
    amiName=$amiNamePrefix$weekday

    # Get AMI ID
    amiIDs=$(ec2-describe-images --region $region | grep 'ami-[a-z0-9]' | grep "$amiName" |cut -f 2)

    # Get Snapshot ID
    if [[ ! -z $amiIDs ]]; then
        snapshotIDs=$(ec2-describe-snapshots --region $region | grep $amiIDs | cut -f 2)
    fi
else
    # Setup AMI Name
    amiName=$amiNamePrefix

    # Get AMI ID
    amiIDs=$(ec2-describe-images --region $region | grep 'ami-[a-z0-9]' | cut -f 2)

    # Get Snapshot ID
    if [[ ! -z $amiIDs ]]; then
        snapshotIDs=$(ec2-describe-snapshots --region $region | cut -f 2)
    fi
fi

if [[ ! -z $amiIDs ]]; then
    # Deregister AMI
    for amiID in $amiIDs
    do
        ec2-deregister --region $region $amiID
    done

    # Delete snapshot
    for snapshotID in $snapshotIDs
    do
        ec2-delete-snapshot --region $region $snapshotID
    done
fi

# Create AMI
ec2-create-image $instanceID --region $region --name "$amiName" -d "$amiDescription" --no-reboot

AWS某些instance有提供SSD，下面是使用m3.medium，並且將MySQL安裝在SSD上面的測試數據

[[email protected] ssd]# time sysbench --test=oltp --mysql-table-engine=innodb --mysql-user=$dbUser --mysql-password=$dbPassword --db-driver=mysql --mysql-db=test --oltp-table-size=1000000 --oltp-table-name=t1 --oltp-nontrx-mode=insert --mysql-socket=/mnt/ssd/mysql/mysql.sock run
sysbench 0.4.12: multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1

Doing OLTP test.
Running mixed OLTP test
Using Special distribution (12 iterations, 1 pct of values are returned in 75 pct cases)
Using "BEGIN" for starting transactions
Using auto_inc on the id column
Maximum number of requests for OLTP test is limited to 10000
Threads started!
Done.

OLTP test statistics:
queries performed:
read: 140000
write: 50000
other: 20000
total: 210000
transactions: 10000 (169.49 per sec.)
deadlocks: 0 (0.00 per sec.)
read/write requests: 190000 (3220.29 per sec.)
other operations: 20000 (338.98 per sec.)

Test execution summary:
total time: 59.0009s
total number of events: 10000
total time taken by event execution: 58.8980
per-request statistics:
min: 2.65ms
avg: 5.89ms
max: 111.90ms
approx. 95 percentile: 15.02ms

Threads fairness:
events (avg/stddev): 10000.0000/0.00
execution time (avg/stddev): 58.8980/0.00

real 0m59.107s
user 0m4.027s
sys 0m9.246s

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活動內容

活動加碼內容與限制條件

難得看到的AWS錯誤，AWS的t1.micro規格變得爆威，r3.large都快要被巴假的了 (應該是資料誤植)，不知道政府會不會要AWS出來說明??