A command line utility to delete old data (eg logging data) from an Azure Storage Table.
This relies on the target table having its PartitionKey formatted in a specific way, namely ascending ticks with a leading 0, eg 0636738338530008778. This is the default format for Serilog, Windows Azure Diagnostic Logs (eg WADDiagnosticsInfrastructureLogsTable, WADLogsTable, WADPerformanceCountersTable, WADWindowsEventLogsTable) and other logging packages.
For more info on the background of this tools, see: How to Delete Old Data From An Azure Storage Table: Part 1 and Part 2.
Example: .\AzureTablePurger.App.exe -account "[YourStorageAccountConnectionString]" -table "[YourTableName]" -days 365
This will delete all records in [YourTableName] under the storage account identified by [YourStorageAccountConnectionString] that are older than 365 days.
You can interrupt this process at any time and restart it. The process is reentrant, so it will pick up where it left off and keep going.
You can specify configuration in 3 ways:
- Via the command line:
-account [storage account connection string]: the connection string for the account you want to target-table [name of table]: the name of the table inside the storage account-days [number of days]: delete all records that are older than this amount of days. Defaults to365
-
Via config in your
appsettings.jsonfile -
Via config in your local user
secrets.jsonfile If you're storing your storage account connection string, you're better off storing it in your user secrets file instead of yourappsettings.jsonfile.
While you can run this from your local machine, for best performance, run this from a VM that is deployed in the same region as your Azure storage account.
As an example, I was getting deletion throughput of around 80-90 entities per second when running from my local machine, vs 2000+ entities per second when running from a VM deploying in the same region as my Azure Storage account.