So, I have a two fields in my log: timeLogged, timeQueued all this fields have date format: 2014-06-14 19:41:21+0000
My question is, how to convert string date value to logstash date? like in #timestamp
For the sole purpose of converting to #timestamp there is a dedicated date filter
date {
match => ["timeLogged","YYYY-MM-dd HH:mm:ss+SSSS"]
}
Now in your case there are basically two types of fields that might be used so you will have to dig a little, either use a grok filter to copy the values in a generic "log_date" field, or trying to see if the date filter can take several arguments like one of thoses possibilities:
date {
match => ["timeLogged","YYYY-MM-dd HH:mm:ss+SSSS",
"timeQueued","YYYY-MM-dd HH:mm:ss+SSSS" ]
}
OR
date {
match => ["timeLogged","YYYY-MM-dd HH:mm:ss+SSSS"]
match => ["timeQueued","YYYY-MM-dd HH:mm:ss+SSSS"]
}
It is up to you to experiment, I never tried myself ;)
this should suffice
date{
match => [ "timeLogged","ISO8601","YYYY-MM-dd HH:mm:ss" ]
target => "timeLogged"
locale => "en"
}
You can try this filter
filter {
ruby {
code => "
event['timeLogged'] = Time.parse(event['timeLogged'])
event['timeQueued'] = Time.parse(event['timeQueued'])
"
}
}
Use the powerful ruby library to do what you need!
Related
I'm using kv filter in Logstash to process config file in the following format :
key1=val1
key2=val2
key3=2020-12-22-2150
with the following lines in Logstash :
kv {
field_split => "\r\n"
value_split => "="
source => "message"
}
Some of my fields in the conf file have a the following date format : YYYY-MM-DD-HHMMSS. When Logstash send the fields to ES, Kibana display them as strings. How can I let Logstash know that those fields are date fields and by that indexing them in ES as dates and not strings ?
I don't want to edit the mapping of the index because it will require reindexing. My final goal with those fields is to calculate the diff between the fields (in seconds, minutes,hours..) and display it in Kibana.
The idea that I have :
Iterate over k,v filter results, if the value is of format YYYY-MM-DD-HHMMSS (check with regex)
In this case, chance the value of the field to milliseconds since epoch
I decided to use k,v filter and Ruby code as a solution but I'm facing an issue.
It could be done more easily outside of logstash by adding a dynamic_template on your index and let him manage field types.
You can use the field name as a detector if it is clear enough (*_date) or define a regex
"match_pattern": "regex",
"match": "^(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.](19|20)\d\d$"
The code above hasnot been tested.
You can find the official doc here.
https://www.elastic.co/guide/en/elasticsearch/reference/current/dynamic-templates.html
My solution :
I used the kv filter to convert each line into key value set.
I saved the kv filter resut into a dedicated field.
On this dedicated field, I run a Ruby script that changed all the dates with the custom format to miliseconds since epoch.
code :
filter {
if "kv_file" in [tags] {
kv {
field_split => "\r\n"
value_split => "="
source => "message"
target => "config_file"
}
ruby {
id => "kv_ruby"
code => "
require 'date'
re = /([12]\d{3}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01])-[0-23]{2}[0-5]{1}[0-9]{1}[0-5]{1}[0-9]{1})/
hash = event.get('config_file').to_hash
hash.each { |key,value|
if value =~ re
date_epochs_milliseconds = DateTime.strptime(value,'%F-%H%M%S').strftime('%Q')
event.set(key, date_epochs_milliseconds.to_i)
end
}
"
}
}
}
By the way, if you are facing the following error in your Ruby compilation : (ruby filter code):6: syntax error, unexpected null hash it doesn't actually mean that you got a null value, it seems that it is related to the escape character of the double quotes. Just try to replace double quotes with one quote.
Mon Nov 18 09:38:45 2019
Is there any idea on how to convert this above date so that it can be digest in grok filter ?
Here is what i did but still date parsefailure is there in logstash
date { match => ["starttime","E MMM dd HH:mm:s yyyy"]
target => starttime }
You are using wrong the filter. You need to specify that you want a Grok match and give it a name. In addition, it seems that your date format does not follow any of the standards (that can be checked in Github), so you'll need a custom one that adjusts to your format. Something like this should work:
grok {
match => { "starttime" => "%{DAY} %{MONTH} %{MONTHDAY} %{TIME} %{YEAR}"}
}
This should go inside your filter and then you can use starttime as you wish.
I am loading a CSV file into elastic using logstash
This CSV file contains a column 'deadline' which has dates of the format
"deadline": "15-06-2014"
I am using the date filter plugin in logstash to get this in date format into elastic
date {
match => ["deadline","dd-MM-yyyy"]
target => "deadline_date"
}
But in the output I am receiving the date which has moved one day back
"deadline_date": "2014-06-14T18:30:00.000Z"
I have one more instance with format like this "dd-MM-yyyy HH:mm"
date {
match => ["launched","dd-MM-yyyy HH:mm"]
target => "launched_date"
}
Gives result with time changed
"launched": "09-09-2013 18:19"
"launched_date": "2013-09-09T12:49:00.000Z"
Please help me figure out this issue.
You're missing your timezone:
date {
match => ["deadline","dd-MM-yyyy"]
target => "deadline_date"
timezone => "Etc/GMT"
}
i have this data in elastic search logs saved in a referer field
/clientReq?sessionid=3332&UID=ed91b-517234-4f4c211-a20e-d2e1aefc126a&signUp=false
i want to use ruby to save this data ed91b-517234-4f4c211-a20e-d2e1aefc126a in a separate field.
i have tried this in ruby in my pattern configuration file,
ruby {
code => "
saveid=event[referer].match((\w+[-]?)+)+)
event.set('saved',saveid) "
}
this doesn't even save the entire filed. So i went ahead to try grok filter instead and tried this,
grok {
match => {"message" => "%{COMBINEDAPACHELOG}"}
add_field => { "savedData" => "%{referer}" }
}
neither of these works. I have tested configuration and if configuring successfully. when i visit kibana front end i don't see new field created either.
Ruby hash syntax event[field] = foo is not used anymore, and has been replaced by Get API for example, event.get(referrer).
Beside that, your regex is not correct to get desired results. One of the solutions is to use Positive Lookbehind to check for UID,
this should work,
ruby {
code => "
saveid = event.get('referer').match(/(?<=UID=)((\w+[-]?)+)+/)[1]
event.set('saved',saveid)
"
}
for grok, you can create a new filter for your referer field, and use the gork's predefined UUID pattern to match your string...can you try this,
grok {
match => {"referer" => "UID=%{UUID:saveData}"}
}
hope this helps.
I'm using logstash, filebeat and grok to send data from logs to my elastisearch instance. This is the grok configuration in the pipe
filter {
grok {
match => {
"message" => "%{SYSLOGTIMESTAMP:messageDate} %{GREEDYDATA:messagge}"
}
}
}
This works fine, the issue is that messageDate is in this format Jan 15 11:18:25 and it doesn't have a year entry.
Now, i actually know the year these files were created in and i was wondering if it is possible to add the value to the field during the process, that is, somehow turn Jan 15 11:18:25 into 2016 Jan 15 11:18:25 before sending to elasticsearch (obviously without editing the files, which i could do and even with ease but it'll be a temporary fix to what i have to do and not a definitive solution)
I have tried googling if it was possible but no luck...
Valepu,
The only way to modify the data from a field is using the ruby filter:
filter {
ruby {
code => "#your code here#"
}
}
For more information like...how to get,set field values, here is the link:
https://www.elastic.co/guide/en/logstash/current/plugins-filters-ruby.html
If you have a separate field for date as a string, you can use logstash date plugin:
https://www.elastic.co/guide/en/logstash/current/plugins-filters-date.html
If you don't have it as a separate field (as in this case) use this site to construct your own grok pattern:
http://grokconstructor.appspot.com/do/match
I made this to preprocess the values:
%{YEAR:yearVal} %{MONTH:monthVal} %{NUMBER:dayVal} %{TIME:timeVal} %{GREEDYDATA:message}
Not the most elegant I guess, but you get the values in different fields. Using this you can create your own date field and parse it with date filter so you will get a comparable value or you can use these fields by themselves. I'm sure there is a better solution, for example you could make your own grok pattern and use that, but I'm gonna leave some exploration for you too. :)
By reading thoroughly the grok documentation i found what google couldn't find for me and which i apparently missed the first time i read that page
https://www.elastic.co/guide/en/logstash/current/plugins-filters-grok.html#plugins-filters-grok-add_field
Using the add_field and remove_field options i managed to add the year to my date, then i used the date plugin to send it to logstash as a timestamp. My filter configuration now looks like this
filter {
grok {
match => {
"message" => "%{SYSLOGTIMESTAMP:tMessageDate} %{GREEDYDATA:messagge}"
add_field => { "messageDate" => "2016 %{tMessageDate}" }
remove_field => ["tMessageDate"]
}
}
date {
match => [ "messageDate", "YYYY MMM dd HH:mm:ss"]
}
}
And it worked fine