Managing Log Streams

LTS manages logs by log stream. Collected logs of different types are classified and stored in different log streams for easier log management. If there are a large number of logs, you can create multiple log streams and name them for quick log search. For example, you can sort operation logs and access logs into different log streams, making it easier to find specific logs when you need them. You can add tags to log streams to help O&M personnel manage services.

Up to 100 log streams can be created in a log group. The upper limit cannot be increased. If you cannot create a log stream because the upper limit is reached, you are advised to delete log streams that are no longer needed and try again, or create log streams in a new log group.

Prerequisites

You have created a log group.

Creating a Log Stream

  1. Log in to the management console and choose Management & Deployment > Log Tank Service. The Log Management page is displayed by default.

  2. Click image1 on the left of the target log group.

  3. Click Create Log Stream. On the displayed page, set log stream parameters by referring to Table 1.

    Table 1 Log stream parameters

    Parameter

    Description

    Log Group Name

    The name of the target log group is displayed by default.

    Log Stream Name

    A log stream name can contain 1 to 64 characters, including only letters, digits, hyphens (-), underscores (_), and periods (.). It cannot start with a period or underscore or end with a period.

    Enterprise Project Name

    Select the required enterprise project. The default value is default. You can click View Enterprise Projects to view all enterprise projects.

    Log Retention Duration

    Specify the log retention duration for the log stream, that is, how many days the logs will be stored in LTS after being reported to LTS.

    By default, logs are retained for 30 days (customizable for 1 to 365 days).

    • If you enable Log Retention Duration for the log stream, logs are retained for the duration set for the log stream.

    • If you disable Log Retention Duration for the log stream, logs are retained for the duration set for the log group.

    Tag

    You can tag log streams as required. Click Add Tags and enter a tag key and tag value.

    Note

    • To add more tags, repeat this step. A maximum of 20 tags can be added.

    • A tag key can contain up to 128 characters, and a tag value can contain up to 255 characters.

    • A tag key must be unique.

    • If a tag is used by a transfer task, you need to modify the task configuration after deleting the tag.

    Remark

    Enter remarks. The value contains up to 1,024 characters.

    **Figure 1** Creating a log stream

    Figure 1 Creating a log stream

  4. Click OK. In the log stream list, you can view information such as the log stream name and operations.

Modifying a Log Stream

By default, a log stream inherits the log retention setting from the log group it belongs to.

  1. In the log stream list, locate the target log stream and click image2 in the Operation column.

  2. On the page displayed, modify the stream name, log retention duration, and tags.

    Note

    • If you disable Log Retention Duration, the log stream will inherit the log retention setting of the log group.

    • If you enable Log Retention Duration, you can set the log retention duration specifically for the log stream.

    • The logs that exceed the retention period will be automatically deleted. You can transfer logs to OBS buckets for long-term storage.

  3. Click OK.

  4. After the modification is successful, move the cursor over the log stream name. The new and original log stream names are displayed.

    **Figure 2** Log stream name

    Figure 2 Log stream name

Deleting a Log Stream

You can delete a log stream that is no longer needed. Deleting a log stream will also delete the log data in the log stream. Deleted log streams cannot be recovered. Exercise caution when performing the deletion.

Note

  • Before deleting a log stream, check whether any log collection task is configured for it. If there is a log collection task, deleting the log stream may affect log reporting.

  • If you want to delete a log stream that is associated with a log transfer task, delete the task first.

  1. In the log stream list, locate the target log stream and click image3 in the Operation column.

  2. Enter DELETE and click OK.

    **Figure 3** Deleting a log stream

    Figure 3 Deleting a log stream

Other Operations

  • Adding a log stream to favorites

    Click image4 in the Operation column of a log stream. The stream is then displayed in the My Favorites/My Favorites(Local Cache) list.

  • Viewing details

    Click image5 in the Operation column of a log stream to view its details, including its name, ID, and creation time.

last updated: 2024-12-11 10:11 UTC - commit: c514951527a7ede0f81f64c818357c9dd4c1ef5b