Tutorial: Creating a global table

Open the DynamoDB console at https://console.aws.amazon.com/dynamodb/home. For this example, choose the US East (Ohio) Region.

In the navigation pane on the left side of the console, choose Tables.

Choose Create Table.

On the Create table page, do the following:

1. For Table name, enter Music.

2. For Partition key, enter Artist.

3. For Sort key, enter SongTitle.

4. Keep the default selection of String for both Partition key and Sort key.

5. Keep the other default selections on the page, and then choose Create table.

   This new table serves as the first replica table in a new global table. It's the prototype for other replica tables that you add later.

On the Tables page, choose the newly created Music table, then do the following:

1. Choose the Global tables tab, and then choose Create replica.

2. In the Available replication Regions dropdown list, choose US West (Oregon) us-west-2.

   The console checks to make sure that a table with the same name doesn't exist in the selected Region. If a table with the same name does exist, you must delete the existing table before you can create a new replica table in that Region.

3. Choose Create replica. This starts the table creation process in the US West (Oregon) us-west-2 Region.

   The Global tables tab for the Music table (and for any other replica tables) shows that the table has been replicated in multiple Regions.

4. Add another Region so that your global table is replicated and synchronized across the United States and Europe. To do this, repeat step 5.b, but this time, specify Europe (Frankfurt) eu-central-1 instead of US West (Oregon) us-west-2.

Make sure that you're still using the AWS Management Console in the US East (Ohio) Region. Then, do the following:

1. Choose Explore table items.

2. Choose Create item.

3. For Artist, enter item_1.

4. For SongTitle, enter Song Value 1.

5. To save the item, choose Create item.

After a short time, the item is replicated across all three Regions of your global table. To verify this, in the console, on the Region selector in the upper-right corner, choose Europe (Frankfurt). The Music table in Europe (Frankfurt) should contain the new item.

Repeat step 7 and choose US West (Oregon) to verify replication in that Region.

Create a new table (Music) in US East (Ohio), with DynamoDB Streams enabled (NEW_AND_OLD_IMAGES).

aws dynamodb create-table \
    --table-name Music \
    --attribute-definitions \
        AttributeName=Artist,AttributeType=S \
        AttributeName=SongTitle,AttributeType=S \
    --key-schema \
        AttributeName=Artist,KeyType=HASH \
        AttributeName=SongTitle,KeyType=RANGE \
    --billing-mode PAY_PER_REQUEST \
    --stream-specification StreamEnabled=true,StreamViewType=NEW_AND_OLD_IMAGES \
    --region us-east-2

Create an identical Music table in US East (N. Virginia).

aws dynamodb update-table --table-name Music --cli-input-json  \
'{
  "ReplicaUpdates":
  [
    {
      "Create": {
        "RegionName": "us-east-1"
      }
    }
  ]
}' \
--region=us-east-2 

Repeat step 2 to create a table in Europe (Ireland) (eu-west-1).

You can view the list of replicas created using describe-table.

aws dynamodb describe-table --table-name Music --region us-east-2 

To verify that replication is working, add a new item to the Music table in US East (Ohio).

aws dynamodb put-item \
    --table-name Music \
    --item '{"Artist": {"S":"item_1"},"SongTitle": {"S":"Song Value 1"}}' \
    --region us-east-2

Wait for a few seconds, and then check to see whether the item has been successfully replicated to US East (N. Virginia) and Europe (Ireland).

aws dynamodb get-item \
    --table-name Music \
    --key '{"Artist": {"S":"item_1"},"SongTitle": {"S":"Song Value 1"}}' \
    --region us-east-1

aws dynamodb get-item \
    --table-name Music \
    --key '{"Artist": {"S":"item_1"},"SongTitle": {"S":"Song Value 1"}}' \
    --region eu-west-1

Delete the replica table in Europe (Ireland) Region.

aws dynamodb update-table --table-name Music --cli-input-json \
'{
  "ReplicaUpdates":
  [
    {
      "Delete": {
        "RegionName": "eu-west-1"
      }
    }
  ]
}'