You can use the pow function to convert the number. If the time is in milliseconds, microseconds, or nanoseconds you must convert the time into seconds. Use the first 10 digits of a UNIX time to use the time in seconds. This function takes a UNIX time value as the first argument and renders the time as a string using the format specified.
The offset -2h is processed first, followed by the snap-to time | where _time>relative_time(now(), AND _time,) Description | eval n=relative_time(now(), following example specifies an earliest time of 2 hours ago snapped to the hour and a latest time of 1 hour ago snapped to the hour. This function takes a UNIX time as the first argument and a relative time specifier as the second argument and returns the UNIX time value of applied to. | chart count by _time relative_time(,) Description | where (eventHour=curHour and eventMin > curMin - 30) or The event timestamp, in the _time field, is used to calculate the event hour (eventHour) and event minute (eventMin). You use the now() function to calculate the current hour (curHour) and current minute (curMin). If you are looking for events that occurred within the last 30 minutes you need to calculate the event hour, event minute, the current hour, and the current minute. | eval n=relative_time(now(), Extended example
#Splunk eval time difference how to
See How to specify relative time modifiers. This example uses a "snap-to" time modifier to snap to the the start of the day. The following example determines the UNIX time value of the start of yesterday, based on the value of now(). You can use this function with the eval, fieldformat, and where commands, and as part of eval expressions. If you want to return the UNIX time when each result is returned, use the time() function instead. When used in a search, this function returns the UNIX time when the search is run. The time returned by the now() function is represented in UNIX time, or in seconds since Epoch time. The now() function is often used with other data and time functions. This function takes no arguments and returns the time that the search was started. In addition to the functions listed in this topic, there are also variables and modifiers that you can use in searches. At last by the table command we have taken “_time”, “indexed_time”, “latency”, “index”, “_raw” fields.The following list contains the functions that you can use to calculate dates and time.įor information about using string and numeric fields in functions, and nesting functions, see Evaluation functions. Here both the “_time” and “_indextime” are in UNIX time format that’s why we have directly performed the subtraction. Again by the “eval” command we have find the difference between “_time” and “_indextime” in “latency” field. By the “strftime” function with “eval” command we have formatted the “_indextime” and stored into “indexed_time ” field.
In the above query we have taken all the indexes present in the server.Here “_time” and “_indextime” are the existing internal fields in the indexes. Query: index=”*” OR index=_* | eval indexed_time=strftime(_indextime,”%+”) | eval latency=_time-_indextime | table _time,indexed_time,latency,index,_raw
So we will find the latency between the indexed time and the event time.īelow we have given a query to find the latency. _indextime is the indexed time that means when the event had been indexed in the indexer.įor some reasons (like server down,heavy traffic) there may be some difference in the indexed time and the event time. _time is the event time,the time which are present in the event that means when the event was generated. In Splunk there are two internal fields _time and _indextime. How to Find the “LATENCY” between the Indexed Time and the Event Time in Splunk
0 kommentar(er)
