![]() ![]() To determine the number of Views and Purchases for each hour, minute, or second you can add the other time functions to the search. | timechart per_day(eval(method="GET")) AS Views_day, per_day(eval(action="purchase")) AS Purchases This example should work with any format of Apache Web access log file. This search uses the per_day function and eval expressions to determine how many times the web pages were viewed and how many times items were purchased. | timechart per_day(eval(method="GET")) AS Views Extended example The following example returns the results of the eval expression eval(method="GET")) and labels the field for the evaluated results "Views". The following example returns the values for the total field for each day. You can use this function with the timechart command. ![]() Returns the values in a field or eval expression for each day. Select latest(_value), metric_name, _time from metrics where metric_name like "queue.*" group by metric_name, span(_time, 1m) It is designed to return the earliest UNIX time values in the past 60 minutes for metrics with names that begin with queue. The following search runs against metric data. Alternatively, you can use the rate function counter to do the same thing. If you have metrics data, you can use the latest_time funciton in conjunction with earliest, latest, and earliest_time functions to calculate the rate of increase for a counter. Returns the UNIX time of the chronologically latest-seen occurrence of a given field value. The search returns the event with the _time value 00:15:05, which is the event with the most recent timestamp. You extend the search using the latest function. Returns the chronologically latest seen occurrence of a value in a field. | FROM _metrics WHERE earliest_time(_value) metric_name=deploy* span(metric_name, 1m) It returns the earliest UNIX time values, for every minute, for each metric_name that begins with deploy. Alternatively you can use the rate function counter to do the same thing. If you have metrics data, you can use the earliest_time function in conjunction with earliest, latest, and latest_time functions to calculate the rate of increase for a counter. Returns the UNIX time of the chronologically earliest-seen occurrence of a given field value. The search returns the event with the _time value 00:15:01, which is the event with the oldest timestamp. You extend the search using the earliest function. Tue 00:15:05 mailsv1 sshd: Failed password for invalid user tomcat from 67.170.226.218 port 1490 ssh2įri 00:15:05 mailsv1 sshd: Failed password for invalid user testuser from 194.8.74.23 port 3626 ssh2 | FROM main WHERE `sourcetype=secure "invalid user" "sshd"` You use the fields command to see the values in the _time, source, and _raw fields. You run the following search to locate invalid user login attempts against a specific sshd (Secure Shell Daemon). This function processes field values as strings. You can use this function with the stats and timechart commands. Returns the chronologically earliest seen occurrence of a value in a field. For an overview about the stats and charting functions, see ![]()
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