Setting User-defined Log Time
When configuring log ingestion, you can enable User-defined log time to set a time field in the logs as the ingestion configuration time.
Enabling User-defined Log Time
- Log in to the LTS console. 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 User-defined 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 User-defined 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
Value of an extracted field. After a Key is selected, the Value is automatically filled in.
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). If the value is a single-digit number, add a space before the value. |
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 year. Monday is the start of a week. The value ranges from 01 to 53. A week is the first week of a month if it has at least four days in that month; otherwise, the following week is the first week. |
24 |
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 |
[2022-12-11 15:05:07.012] |
[yyyy-MM-dd 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 |
2023-01-02T15:04:05.999999999Z07:00 |
yyyy-MM-dd'T'HH:mm:ss Z |
RFC3339Nano |
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 |
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