Log

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

Create Log Group

You can create a log group for the metric. To create a log group, follow these steps.

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. 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.

   Category	Whether required	Detailed description
   Log group name	Required	Enter the name of the log group to monitor in ServiceWatch using English letters, numbers, and special characters (-_./#) within 3 ~ 512 characters
   Log retention policy	Required	Select the retention period for monitored log data
   Tag	Select	Add tag information Up to 50 tags can be added per resource When adding a tag, entering the Key and Value allows selection from the list of previously created tag Keys and Values

   Table. Log group creation items

5. After reviewing the summary information, click the Create button. A popup notifying the creation of the log group will appear.

6. Click the Confirm button. Log group creation is complete.

Check log group details

You can view and manage detailed information about log groups.

To view detailed information about the log group, follow these steps.

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 to view detailed information. You will be taken to the Log Group Details page.

   Category	Detailed description
   Log group status	Log group status Active: The log group is in an active state Inactive: The log group is in an inactive state
   Export Log Group	Store log group log data in Object Storage For detailed information on log group export, see Log Group Export
   Delete log group	Delete the corresponding log group
   Information Classification Tab	Information tabs for log groups Details, Log Streams, Tags, Activity History Click each tab to view the corresponding information

   Table. Log Group Details

   Reference

   On the Log Group List page, click the More > Export Log Group button for the log group you want to store in Object Storage to export the data.

Detailed Information

Log Group List page allows you to view the basic information and details of the selected log group.

Log Stream

Log Group List page allows you to view the log streams of the selected log group.

log pattern

Log Group List page allows you to view the log pattern of the selected log group.

tag

On the Log Group List page, you can view the tag information of the selected log group and add, modify, or delete it.

Job History

Log Group List page lets you view the operation history of the selected log group.

Managing Log Streams

You can create and manage log streams.

Create Log Stream

You can create a new log stream in a log group. To create a Hog stream, follow the steps below.

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 Details page.
4. Log Group Details page, click the Log Stream tab. The Log Stream list is displayed.
5. Click the Create Log Stream button. The Create Log Stream popup opens.
6. Enter the Log stream name, then click the Create button. Log stream creation is completed.
   • Enter the name using English letters and numbers, within 3~512 characters.

Check detailed log stream information

You can view and manage detailed information about log streams. To view detailed information about the log stream, follow these steps.

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. Click the log group name on the Log Group List page to view detailed information. You will be taken to the Log Group Details page.
4. On the Log Group Details page, click the Log Stream tab. The Log Stream list is displayed.
5. Click the log stream name in the Log Stream list to view its details. You will be taken to the Log Stream Details page.

   Category	Detailed description
   Excel download	Log stream history can be downloaded as an Excel file
   Timestamp list	Message list by timestamp Period selection, User time zone, can filter using message input

   Table. Log group details - 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 Stream Details page.

Delete Log Stream

You can delete unused log streams. To delete a log stream, follow these steps.

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 whose log stream you want to delete. You will be taken to the Log Group Details page.
4. Log Group Details page, click the Log Stream tab. The log stream list will be displayed.
5. Select the checkbox of the log stream to delete in the log stream list, then click the More > Delete button. A popup notifying the log stream deletion will open.
   • You can delete multiple log streams simultaneously.
   • You can also delete each individually by clicking the Delete button at the right end of each log stream.
6. Click the Confirm button. The log stream will be deleted.

Managing Log Patterns

Create Log Pattern

To create a log pattern, follow these steps.

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 Details page.

4. Log Group Details page, click the Log Pattern tab. The log pattern list will be 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.

   • In the Basic Information area, enter and select the basic information for the log pattern.

     Category	Required	Detailed description
     Log pattern name	Required	Enter the name of the log pattern using English letters, numbers, and special characters (-_./#) within 3 ~ 512 characters
     Pattern format	Required	Select a pattern format or enter manually Pattern format: Choose one of the string pattern, space-delimited pattern, or JSON format pattern provided as pattern formats Direct input: After selecting one of the string pattern, space-delimited pattern, or JSON format pattern, enter a value between 1 ~ 1,024
     Pattern test	Select	Enter or select log data to verify using a pattern Direct Input: Enter the log data to be used directly into the Log Event Message Separate log events using line breaks Up to 50 log events can be entered Each log event can be entered within 1 ~ 1,024 bytes Log Data Selection: Choose the log data to use When selecting log data, the corresponding log data is displayed in the Log Event Message Pattern Test: Conduct a test on the log event message If the test succeeds, the test result is displayed at the bottom

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

     Category	Required status	Detailed description
     namespace	Required	Select a namespace for the log pattern If there is no namespace for the log pattern, Create New to create one Namespace Name: When creating a new namespace, use English letters, numbers, spaces, and special characters(-_\/#) to enter between 3 ~ 128 characters
     Indicator Name	Required	Enter the name of the indicator using English letters, numbers, and special characters(_) within 3 ~ 128 characters
     indicator value	Required	Enter the indicator value a number greater than or equal to 0 or $indetifier
     default	Select	If you use the default value, enter 0 or greater float value When using the default, dimension cannot be used
     unit	Required	Select indicator unit
     dimension	Selection	Set the dimension of metrics generated by log patterns Log pattern format is available only when it is a space-delimited pattern or a JSON format pattern Default value cannot be used when entered If Use is checked, you can add custom dimension fields After clicking the Add button, add by entering Field name and Field value You can add up to a maximum of 3

     Table. Log pattern generation - metric information items

7. After reviewing the summary information, click the Create button. A popup indicating log pattern creation will appear.

8. Confirm click the button. Log pattern generation is complete.

Check detailed log pattern information

To view detailed information about the log pattern, follow these steps.

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. Click the log group name to view detailed information on the Log Group List page. You will be taken to the Log Group Details page.
4. Log Group Details page, click the Log Pattern tab. The log pattern list will be displayed.
5. Log pattern Click the log pattern name in the list to view its details. Log pattern details page will open.

   Category	Detailed description
   Create alert policy	Alert policy creation available When the button is clicked, navigate to the alert policy creation page
   Delete log pattern	Delete the log pattern currently being examined
   Log pattern name	Log pattern name
   constructor	User who created the log pattern
   Creation date and time	Log pattern creation timestamp
   Editor	User who modified the log pattern information
   Modification date	Date and time the log pattern information was modified
   Pattern	Pattern format
   Indicator Information	Metric information of the pattern group Namespace name, metric name, metric value, default value, unit, alarm policy name, dimension name Edit button allows modification of metric value, default value, unit information

   Table. Log pattern detailed items

Delete log pattern

To delete a log pattern, follow these steps.

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 whose log pattern you want to delete. You will be taken to the Log Group Details page.
4. On the Log Group Details page, click the Log Pattern tab. The log pattern list will be displayed.
5. After selecting the checkbox of the log pattern to delete in the log pattern list, click the Delete button. A popup notifying the log pattern deletion will open.
   • You can delete multiple log patterns simultaneously.
   • You can also delete individually by clicking the More > Delete button at the far right of each log pattern, or by clicking the Delete Log Pattern button on the log pattern’s detail page.
6. Click the Confirm button. The log pattern will be deleted.

Export Log Group

Log group data can be stored in Object Storage. To store log group data in Object Storage, follow these steps.

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 Export menu. You will be taken to the Log Group Export List page.

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

   Category	Required	Detailed description
   Select log group	Required	Select the log group to store in Object Storage If the log group contains log streams, you can click the Select button to choose the log stream to store If no log group is selected, the entire data of the log group will be stored
   Select period	Select	Select the user time zone and data storage interval In the Time Settings area, you can select the desired interval or click the Enter Manually button to set the start and end date and time
   storage bucket	Required	Select the bucket to store data Up to 50 tags can be added per resource When adding a tag, entering the Key and Value allows you to select from the list of existing tag Keys and Values

   Table. Log group export items

4. After selecting the bucket to store the data, click the Complete button. A popup notifying that the data has been saved will open.

5. In the popup window, click the Confirm button. Data export will begin.

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

Delete Log Group

You can delete unused log groups.

To delete a log group, follow these steps.

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 you want to delete, then click the Delete button. A popup notifying the log group deletion will appear.
   • You can delete multiple log groups simultaneously.
   • You can delete individually by clicking the Delete button at the far right of each log group, or by clicking the Delete Log Group button on the Log Group Details page.
4. Click the Confirm button. The log group will be deleted.