Logs

In ServiceWatch, you can create and manage log groups to generate alert notifications when set conditions are met by setting threshold criteria for metrics to monitor.

Creating a Log Group

You can create a log group for metrics. Follow these steps to create a log group.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.

2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.

3. On the Log Group List page, click the Create Log Group button. You will be taken to the Create Log Group page.

4. Enter the basic information and tag information required to create a log group.

   Division	Required	Detailed Description
   Log Group Name	Required	Enter the name of the log group to monitor in ServiceWatch Enter within 3 to 512 characters using English letters, numbers, and special characters (-_./#)
   Log Retention Policy	Required	Select the period to retain monitored log data
   Tag	Optional	Add tag information You can add up to 50 tags per resource When adding a tag, after entering Key and Value values, you can select from the list of existing tag Keys and Values

   Table. Create Log Group Items

5. After checking the summary information, click the Create button. A popup window will open announcing the log group creation.

6. Click the Confirm button. The log group creation is complete.

Viewing Log Group Detailed Information

You can view and manage detailed information about log groups.

Follow these steps to view detailed information about log groups.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, click the log group name for which you want to view detailed information. You will be taken to the Log Group Detail page.

   Division	Detailed Description
   Log Group Status	Status of the log group Active: Log group is activated Inactive: Log group is deactivated
   Export Log Group	Save log data of the log group to Object Storage For details on log group export, refer to Exporting Log Group
   Delete Log Group	Delete the corresponding log group
   Information Division Tab	Information division tabs for the log group Detailed information, Log Streams, Tags, Operation History Click each tab to view the corresponding information

   Table. Log Group Detail Items

   Reference

   On the Log Group List page, you can export data by clicking the More > Export Log Group button of the log group to save to Object Storage.

Detailed Information

You can view basic information and log group information for the log group selected on the Log Group List page.

Log Streams

You can view log streams for the log group selected on the Log Group List page.

Log Patterns

You can view log patterns for the log group selected on the Log Group List page.

Tags

You can view tag information for the log group selected on the Log Group List page, and add, modify, or delete them.

Operation History

You can view the operation history of the log group selected on the Log Group List page.

Managing Log Streams

You can create and manage log streams.

Creating a Log Stream

You can create a new log stream in a log group. Follow these steps to create a log stream.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, click the log group name for which you want to create a log stream. You will be taken to the Log Group Detail page.
4. On the Log Group Detail page, click the Log Stream tab. The log stream list is displayed.
5. Click the Create Log Stream button. The Create Log Stream popup window will open.
6. After entering the Log Stream Name, click the Create button. The log stream creation is complete.
   • Enter the name within 3 to 512 characters using English letters and numbers.

Viewing Log Stream Detailed Information

You can view and manage detailed information about log streams. Follow these steps to view detailed information about log streams.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, click the log group name for which you want to view detailed information. You will be taken to the Log Group Detail page.
4. On the Log Group Detail page, click the Log Stream tab. The Log Stream list is displayed.
5. On the Log Stream list, click the log stream name for which you want to view detailed information. You will be taken to the Log Stream Detail page.

   Division	Detailed Description
   Excel Download	Download log stream history as an Excel file
   Timestamp List	Message list by timestamp Can filter using Period Selection, User Time Zone, and message input

   Table. Log Group Detail - Log Stream Detail Items

   Reference

   When you click the View All Log Streams button at the top of the log stream list, you will be taken to the All Log Streams Detail page.

Deleting a Log Stream

You can delete unused log streams. Follow these steps to delete a log stream.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, click the log group name for which you want to delete a log stream. You will be taken to the Log Group Detail page.
4. On the Log Group Detail page, click the Log Stream tab. The log stream list is displayed.
5. On the log stream list, select the checkbox of the log stream to delete and click the More > Delete button. A popup window will open announcing the log stream deletion.
   • You can delete multiple log streams at the same time.
   • You can also delete individually by clicking the Delete button at the right end of each log stream.
6. Click the Confirm button. The log stream is deleted.

Managing Log Patterns

Creating a Log Pattern

Follow these steps to create a log pattern.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.

2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.

3. On the Log Group List page, click the log group name for which you want to create a log pattern. You will be taken to the Log Group Detail page.

4. On the Log Group Detail page, click the Log Pattern tab. The log pattern list is displayed.

5. Click the Create Log Pattern button. You will be taken to the Create Log Pattern page.

6. Set the basic information and metric information required to create a log group.

   • Enter and select basic information for the log pattern in the Basic Information area.

     Division	Required	Detailed Description
     Log Pattern Name	Required	Enter the name of the log pattern Enter within 3 to 512 characters using English letters, numbers, and special characters (-_./#)
     Pattern Format	Required	Select or directly enter the pattern format Pattern Format: Select one of string pattern, space-separated pattern, JSON format pattern provided as pattern format Direct Input: After selecting one of string pattern, space-separated pattern, JSON format pattern, enter within 1 to 1,024
     Pattern Test	Optional	Directly enter or select log data to verify using the pattern Direct Input: Directly enter the log data to use in Log Event Message Separate log events using line breaks Can enter up to 50 log events Can enter within 1 to 1,024 bytes for one log event Select log data: Select the log data to use When selecting log data, the corresponding log data is displayed in Log Event Message Test Pattern: Perform test on log event message When test succeeds, test result is displayed at the bottom

     Table. Create Log Pattern - Basic Information Items
   • Enter and select metric information in the Metric Information area.

     Division	Required	Detailed Description
     Namespace	Required	Select the namespace for the log pattern If there is no namespace for the log pattern, select Create New to create a new one Namespace Name: When creating a new namespace, enter within 3 to 128 characters using English letters, numbers, spaces, and special characters (-_\/#)
     Metric Name	Required	Enter the name of the metric Enter within 3 to 128 characters using English letters, numbers, and special characters (_)
     Metric Value	Required	Enter the metric value Enter a number of 0 or higher or $indetifier
     Default Value	Optional	Enter if using the default value Enter as a float value of 0 or higher Cannot use Dimension when using default value
     Unit	Required	Select the metric unit
     Dimension	Optional	Set the dimension of the metric created by the log pattern Can be used only when Log Pattern Format is space-separated pattern or JSON format pattern Cannot be used when entering Default Value When you check Use, you can add custom dimension fields After clicking the Add button, enter Field Name and Field Value to add Can add up to 3

     Table. Create Log Pattern - Metric Information Items

7. After checking the summary information, click the Create button. A popup window will open announcing the log pattern creation.

8. Click the Confirm button. The log pattern creation is complete.

Viewing Log Pattern Detailed Information

Follow these steps to view detailed information about a log pattern.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, click the log group name for which you want to view detailed information. You will be taken to the Log Group Detail page.
4. On the Log Group Detail page, click the Log Pattern tab. The log pattern list is displayed.
5. On the Log Pattern list, click the log pattern name for which you want to view detailed information. You will be taken to the Log Pattern Detail page.

   Division	Detailed Description
   Create Alert Policy	Can create alert policy Click the button to go to the alert policy creation page
   Delete Log Pattern	Delete the log pattern currently being viewed
   Log Pattern Name	Log pattern name
   Creator	User who created the log pattern
   Created Date	Date and time when the log pattern was created
   Modifier	User who modified the log pattern information
   Modified Date	Date and time when the log pattern information was modified
   Pattern	Pattern format
   Metric Information	Metric information of the pattern group Namespace name, metric name, metric value, default value, unit, alert policy name, dimension name Click the Edit button to modify Metric Value, Default Value, Unit information

   Table. Log Pattern Detail Items

Deleting a Log Pattern

Follow these steps to delete a log pattern.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, click the log group name for which you want to delete a log pattern. You will be taken to the Log Group Detail page.
4. On the Log Group Detail page, click the Log Pattern tab. The log pattern list is displayed.
5. On the log pattern list, select the checkbox of the log pattern to delete and click the Delete button. A popup window will open announcing the log pattern deletion.
   • You can delete multiple log patterns at the same time.
   • You can also delete individually by clicking the More > Delete button at the right end of each log pattern or by clicking the Delete Log Pattern button on the log pattern detail page.
6. Click the Confirm button. The log pattern is deleted.

Exporting Log Group

You can save log group data to Object Storage. Follow these steps to save log group data to Object Storage.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.

2. On the Service Home page, click the Log > Export Log Group menu. You will be taken to the Export Log Group List page.

3. On the Export Log Group List page, click the Export Log Group button. You will be taken to the Export Log Group page.

   Division	Required	Detailed Description
   Select Log Group	Required	Select the log group to save to Object Storage If there are log streams included in the log group, click the Select button to select the log streams to save If you do not select a log group, all data of the log group is saved
   Select Period	Optional	Select the user time zone and data storage interval For the data storage interval, you can select the desired interval in the Time Setting area or click the Direct Input button to set the start and end date and time
   Storage Bucket	Required	Select the bucket to save data You can add up to 50 tags per resource When adding a tag, after entering Key and Value values, you can select from the list of existing tag Keys and Values

   Table. Export Log Group Items

4. After selecting the bucket to save the data, click the Done button. A popup window will open announcing the data save.

5. Click the Confirm button in the popup window. The data export will start.

   • You can check the progress on the Export Log Group List page.

Deleting a Log Group

You can delete unused log groups.

1. Click the All Services > Management > ServiceWatch menu. You will be taken to the Service Home page.
2. On the Service Home page, click the Log > Log Group menu. You will be taken to the Log Group List page.
3. On the Log Group List page, select the checkbox of the log group to delete and click the Delete button. A popup window will open announcing the log group deletion.
   • You can delete multiple log groups at the same time.
   • You can also delete individually by clicking the Delete button at the right end of each log group or by clicking the Delete Log Group button on the corresponding Log Group Detail page.
4. Click the Confirm button. The log group is deleted.