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Is there any kind of life retention period concept in DynamoDB.
I mean is there any way such that data inside a table will be deleted after some time like we can set some retention period in S3.
Thanks,
208
TTL typically deletes expired items within 48 hours of expiration.
With the DynamoDB API, you use the DeleteItem action to delete data from a table, one item at a time. You must specify the item's primary key values. In addition to DeleteItem , Amazon DynamoDB supports a BatchWriteItem action for deleting multiple items at the same time.
If you use the AWS Management Console to create a table or a global secondary index, DynamoDB auto scaling is enabled by default. You can modify your auto scaling settings at any time. For more information, see Using the AWS Management Console with DynamoDB auto scaling.
Choose the table that you want to work with and select the Additional settings tab. In the Read/write capacity section, select Edit. In the Capacity mode section, select Provisioned. In the Table capacity section, set Auto scaling to On for Read capacity, Write capacity, or both.
DynamoDB has introduced a Time to Live (TTL) feature. You can create a numeric field and set the value to "time in seconds" (since epoch) when you want the record to be deleted.
DynamoDB will automatically delete the record at the specified time. Of course, TTL has to be configured on a per table basis.
You can fnd more details at: http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/time-to-live-ttl-how-to.html
174
No, there is no "retention" setting available in DynamoDB.
You could run a daily/monthly query that uses a date field to filter results, and use that output to determine which Items to delete. This would need to be implemented in your own programming code.
Some users choose to use separate tables to provide ageing. For example, create a separate table for each month. Then, delete old tables once they pass a certain age. However, your software would have to know how to handle multiple tables of data.
Examples:
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