Check for Sufficient Log Retention Period

Sign in to your Alibaba Cloud account.

Navigate to Simple Log Service (SLS) console available at https://sls.console.aliyun.com/.

Click on the name (link) of the SLS project that you want to examine, listed in the Projects section.

Choose Log Storage (Magnifying Glass icon) from the left navigation panel to view the Logstores created for the selected project.

Choose the SLS Logstore that you want to examine, click on the Expand button (down arrow icon), and choose Modify (edit icon).

In the Logstore Attributes section, check the Data Retention Period setting to determine the number of days to retain activity logs for the selected Logstore. If Data Retention Period is less than 365 days and different from Permanent Storage (i.e. retain data permanently), the selected Simple Log Service (SLS) Logstore does not have a sufficient log retention period configured.

Repeat steps no. 5 and 6 for each SLS Logstore created for the selected project.

Repeat steps no. 3 - 7 for each SLS project available within your Alibaba Cloud account.

Install and configure Simple Log Service (SLS) CLI. SLS CLI is a dedicated command-line tool for Alibaba Cloud's Simple Log Service (SLS).

Run list_project command (OSX/Linux/UNIX) to describe the information available for each Simple Log Service (SLS) project deployed in your Alibaba Cloud account:

aliyunlog log list_project --format-output=json

The command output should return the requested information (including the project name, i.e. the "projectName" value):

{
	"projects": [
		{
			"createTime": "1709556764",
			"dataRedundancyType": "LRS",
			"description": "",
			"lastModifyTime": "1709556764",
			"owner": "",
			"projectName": "tm-sls-main-project",
			"region": "eu-west-1",
			"resourceGroupId": "rg-abcdabcdabcdabc",
			"status": "Normal"
		},
		{
			"createTime": "1709222851",
			"dataRedundancyType": "LRS",
			"description": "",
			"lastModifyTime": "1709222851",
			"owner": "",
			"projectName": "slsaudit-region-1234567890123456-eu-west-1",
			"region": "eu-west-1",
			"resourceGroupId": "rg-abcdabcdabcdabc",
			"status": "Normal"
		}
	],
	"count": 2,
	"total": 2
}

Run list_logstore command (OSX/Linux/UNIX) using the name of the SLS project that you want to examine as the identifier parameter, to list the name of each Logstore created for the selected project:

aliyunlog log list_logstore 
  --project_name=tm-sls-main-project 
  --format-output=json

The command output should return the requested information:

{
	"logstores": [
		"tm-sls-main-project-logstore",
		"tm-sls-audit-data-logstore"
	],
	"count": 2,
	"total": 2
}

Run get_logstore command (OSX/Linux/UNIX) to describe the configuration information available for the specified Simple Log Service (SLS) Logstore:

aliyunlog log get_logstore 
  --project_name=tm-sls-main-project 
  --logstore_name=tm-sls-main-project-logstore 
  --format-output=json

The command output should return the requested configuration information (including the log retention period, i.e. the "ttl" value):

{
	"shardCount": 1,
	"telemetryType": "",
	"ttl": 90,
	"appendMeta": true,
	"archiveSeconds": 0,
	"autoSplit": true,
	"createTime": 1709556812,
	"enable_tracking": false,
	"hot_ttl": 90,
	"infrequentAccessTTL": 0,
	"lastModifyTime": 1709568873,
	"logstoreName": "tm-sls-main-project-logstore",
	"maxSplitShard": 64,
	"mode": "standard",
	"productType": "",
	"resourceQuota": {
		"storage": {
			"preserved": -1,
			"used": 0
		}
	}
}

Check the "ttl" attribute value to determine the number of days to retain activity logs for the selected Logstore. If the "ttl" value is less than 365 days and different from 3650 (i.e. retain data permanently), the selected Simple Log Service (SLS) Logstore does not have a sufficient log retention period configured.

Repeat steps no. 6 and 7 for each SLS Logstore created for the selected project.

Repeat steps no. 4 - 8 for each SLS project available within your Alibaba Cloud account.

Sign in to your Alibaba Cloud account.

Navigate to Simple Log Service (SLS) console available at https://sls.console.aliyun.com/.

Click on the name (link) of the SLS project that you want to access, listed in the Projects section.

Choose Log Storage (Magnifying Glass icon) from the left navigation panel to view the Logstores created for the selected project.

Choose the SLS Logstore that you want to configure, click on the Expand button (down arrow icon), and choose Modify (edit icon).

Choose Modify from the top-right menu and set the Data Retention Period to 365 days or more. To permanently store the collected logs in the selected Logstore, set Data Retention Period to Permanent Storage. Choose Save from the top-right menu to apply the configuration changes. After the log retention period ends, your logs are automatically deleted.

Repeat steps no. 5 and 6 for each SLS Logstore that you want to configure, created for the selected project.

Repeat steps no. 3 - 7 for each SLS project available within your Alibaba Cloud account.

Install and configure Simple Log Service (SLS) CLI. SLS CLI is a dedicated command-line tool for Alibaba Cloud's Simple Log Service (SLS).

Run update_logstore command (OSX/Linux/UNIX) to update the configuration of the specified Simple Log Service (SLS) Logstore in order to extend the log retention period to 365 days or more. Use the --ttl command parameter to set the desired retention period. If you set the --ttl parameter to 3650, data is permanently stored within the selected Logstore (the command does not produce an output):

aliyunlog log update_logstore 
  --project_name=tm-sls-main-project 
  --logstore_name=tm-sls-main-project-logstore 
  --ttl=365

Repeat step no. 2 for each SLS Logstore created for the selected project.

Repeat steps no. 1 and 2 for each SLS project available within your Alibaba Cloud account.