Setting Custom Log Time
When configuring log ingestion, you can enable Custom Log Time to set a time field in the logs as the ingestion configuration time.
Enabling Custom Log Time
- Log in to the management console and choose Management & Deployment > Log Tank Service. The Log Management page is displayed by default.
- Expand the target log group and click the name of the target stream.
- On the log stream details page, click
in the upper right corner. On the page displayed, click the Cloud Structuring Parsing tab. For details, see Setting Cloud Structuring Parsing. - After cloud structuring parsing is configured, enable Custom Log Time and specify the following parameters.
A time deviation may occur around the time displayed on the log search page when you enable or disable Custom Log Time. Do not frequently enable or disable it.
Table 1 Parameter configuration Parameter
Description
Example
Key
Name of an extracted field. You can select an extracted field from the drop-down list. The field is of the string or long type.
test
Value
For an extracted field, after you select a key, its value is automatically filled in.
NOTE:The value of the field must be within 24 hours earlier or later than the current time.
2022-07-19 12:12:00
Format
For details, see Common Log Time Formats.
yyyy-MM-dd HH:mm:ss
Operation
Click Verify. If the message The time format is successfully matched with the time field value. is displayed, the verification is successful.
-
Common Log Time Formats
Table 2 lists common log time formats.
By default, log timestamps in LTS are accurate to seconds. You do not need to configure information such as milliseconds and microseconds.
Format | Description | Example |
|---|---|---|
EEE | Abbreviation for Week. | Fri |
EEEE | Full name for Week. | Friday |
MMM | Abbreviation for Month. | Jan |
MMMM | Full name for Month. | January |
dd | Number of the day in a month, ranging from 01 to 31 (decimal). | 07, 31 |
HH | Hour, in 24-hour format. | 22 |
hh | Hour, in 12-hour format. | 11 |
MM | Number of the month, ranging from 01 to 12 (decimal). | 08 |
mm | Number of the minute, ranging from 00 to 59 (decimal). | 59 |
a | AM or PM | AM, PM |
hh:mm:ss a | Time in the 12-hour format. | 11:59:59 AM |
HH:mm | Hour and minute format. | 23:59 |
ss | Number of the second, ranging from 00 to 59 (decimal). | 59 |
yy | Year without century, ranging from 00 to 99 (decimal). | 04, 98 |
yyyy | Year (decimal). | 2004, 1998 |
d | Number of the day in a month, ranging from 1 to 31 (decimal). | 7, 31 |
DDD | Number of the day in a year, ranging from 001 to 366 (decimal). | 365 |
u | Number of the day in a week, ranging from 1 to 7 (decimal). The value 1 indicates Monday. | 2 |
w | Number of the week in a year. Sunday is the start of a week. The value ranges from 00 to 53. | 23 |
W | Number of the week in a month, ranging from 0 to 5. | 2 |
U | Number of the day in a week, ranging from 0 to 6 (decimal). The value 0 indicates Sunday. | 5 |
EEE MMM dd HH:mm:ss yyyy | Standard date and time. | Tue Nov 20 14:12:58 2020 |
EEE MMM dd yyyy | Standard date without time. | Tue Nov 20 2020 |
HH:mm:ss | Standard time without date. | 11:59:59 |
%s | UNIX Timestamp. | 147618725 |
Examples
Table 3 lists common time standards, examples, and expressions.
Example | Time Expression | Time Standard |
|---|---|---|
2022-07-14T19:57:36+08:00 | yyyy-MM-dd'T'HH:mm:ssXXX | Custom |
1548752136 | %s | Custom |
27/Jan/2022:15:56:44 | dd/MMM/yyyy:HH:mm:ss | Custom |
2022-08-15 17:53:23+08 | yyyy-MM-dd HH:mm:ssX | Custom |
2022-08-05T08:24:15.536+0000 | yyyy-MM-dd'T'HH:mm:ss.SSSZ | Custom |
2022-08-20T10:04:03.204000Z | yyyy-MM-dd'T'HH:mm:ss.SSSZ | Custom |
2022-08-22T06:52:08Z | yyyy-MM-dd'T'HH:mm:ssZ | Custom |
2022-07-24T10:06:41.000 | yyyy-MM-dd'T'HH:mm:ss.SSS | Custom |
Monday, 02-Jan-06 15:04:05 MST | EEEE, dd-MMM-yy HH:mm:ss Z | RFC850 |
Mon, 02 Jan 2006 15:04:05 MST | EEE, dd MMM yyyy HH:mm:ss Z | RFC1123 |
02 Jan 06 15:04 MST | dd MMM yy HH:mm Z | RFC822 |
02 Jan 06 15:04 -0700 | dd MMM yy HH:mm Z | RFC822Z |
2023-01-02T15:04:05Z07:00 | yyyy-MM-dd'T'HH:mm:ss Z | RFC3339 |
2022-12-11 15:05:07 | yyyy-MM-dd HH:mm:ss | Custom |
- Enabling Custom Log Time
- Common Log Time Formats
- Examples