I´m trying to extract the number of ms in this logline
20190726160424 [INFO]
[concurrent/forasdfMES-managedThreadFactory-Thread-10] -
Metricsdceptor: ## End of call: Historirrtory.getHistrrOrder took 2979
ms
The problem is, that not all loglines contain that string
Now I want to extract it optionally into a duration field. I tried this, but nothing happend .... no error, but also no result.
grok
{
match => ["message", "(took (?<duration>[\d]+) ms)?"]
}
What I´m I doing wrong ?
Thanks guys !
A solution would be to only apply the grok filter on the log lines ending with ms. It can be done using conditionals in your configuration.
if [message] =~ /took \d+ ms$/ {
grok {
match => ["message", "took %{NUMBER:duration} ms"]
}
}
I cannot explain why, but it works if you anchor it
grok { match => { "message" => "(took (?<duration>\d+) ms)?$" } }
I'm using Filebeat to forward logs into Logstash.
I have filenames that contain "v2" in them, for an example:
C:\logs\Engine\v2.latest.log
I'd like to perform a different grok on these files.
I tried both of the following:
filter{
if "v2" in [filename] {
grok {
.....
.....
}
}
}
OR
filter{
if [filename] =~ /v2/ {
grok {
.....
.....
}
}
}
Well, my issue was that the "Filename" field was being generated AFTER the filter. So my syntax was correct but it simply was not catching anything because it didnt exist. However, Starting from version 6.7 they've added a "log.file.path" field which is the "Filename" field I previously generated.
Am trying to parse Tomcat logs using GROK filter my logs has the below format
03/14/18 02:01:26 Event Created in BPPM: 512461 in 6ms
The last field 6ms field is average response time of the app which i want to have as INTEGER so that it can be aggregatable in KIBANA how to achieve this using GROK.
You can do like this:
grok {
match => ["message", "%{DATE:date} %{TIME:time} %{DATA:message}: %{WORD:some_id} in %{NUMBER:response_time}ms"]
}
mutate {
convert => {"response_time" => "integer" }
}
This should work. Let me know if it worked for you. Thanks !!
I am using Logstash to parse a log file. A sample log line is shown below.
2011/08/10 09:51:34.450457,1.048908,tcp,213.200.244.217,47908, ->,147.32.84.59,6881,S_RA,0,0,4,244,124,flow=Background-Established-cmpgw-CVUT
I am using following filter in my confguration file.
grok {
match => ["message","%{DATESTAMP:timestamp},%{BASE16FLOAT:value},%{WORD:protocol},%{IP:ip},%{NUMBER:port},%{GREEDYDATA:direction},%{IP:ip2},%{NUMBER:port2},%{WORD:status},%{NUMBER:port3},%{NUMBER:port4},%{NUMBER:port5},%{NUMBER:port6},%{NUMBER:port7},%{WORD:flow}" ]
}
It works well for error-free log lines. But when I have a line like below, it fails. Note that the second field is missing.
2011/08/10 09:51:34.450457,,tcp,213.200.244.217,47908, ->,147.32.84.59,6881,S_RA,0,0,4,244,124,flow=Background-Established-cmpgw-CVUT
I want to put a default value in there in my output Json object, if a value is missing. how can I do that?
Use (%{BASE16FLOAT:value})? for second field to make it optional - ie. regex ()? .
Even if the second field is null the grok will work.
So entire grok look like this:
%{DATESTAMP:timestamp},(%{BASE16FLOAT:value})?,%{WORD:protocol},%{IP:ip},%{NUMBER:port},%{GREEDYDATA:direction},%{IP:ip2},%{NUMBER:port2},%{WORD:status},%{NUMBER:port3},%{NUMBER:port4},%{NUMBER:port5},%{NUMBER:port6},%{NUMBER:port7},%{WORD:flow}
Use it in your conf file. Now, if value field is empty it will omit it in response.
input {
stdin{
}
}
filter {
grok {
match => ["message","%{DATESTAMP:timestamp},%{DATA:value},%{WORD:protocol},%{IP:ip},%{NUMBER:port},%{GREEDYDATA:direction},%{IP:ip2},%{NUMBER:port2},%{WORD:status},%{NUMBER:port3},%{NUMBER:port4},%{NUMBER:port5},%{NUMBER:port6},%{NUMBER:port7},%{WORD:flow}" ]
}
}
output {
stdout {
codec => rubydebug
}
}
Would someone be able to add some clarity please? My grok pattern works fine when I test it against grokdebug and grokconstructor, but then I put it in Logastash it fails from the beginning. Any guidance would be greatly appreciated. Below is my filter and example log entry.
{"casename":"null","username":"null","startdate":"2015-05-26T01:09:23Z","enddate":"2015-05-26T01:09:23Z","time":"0.0156249","methodname":"null","url":"http://null.domain.com/null.php/null/jobs/_search?q=jobid:\"0\"&size=100&from=0","errortype":"null","errorinfo":"null","postdata":"null","methodtype":"null","servername":"null","gaggleid":"a51b90d6-1f82-46a7-adb9-9648def879c5","date":"2015-05-26T01:09:23Z","firstname":"null","lastname":"null"}
filter {
if [type] == 'EventLog' {
grok {
match => { 'message' => ' \{"casename":"%{WORD:casename}","username":"%{WORD:username}","startdate":"%{TIMESTAMP_ISO8601:startdate}","enddate":"%{TIMESTAMP_ISO8601:enddate}","time":"%{NUMBER:time}","methodname":"%{WORD:methodname}","url":"%{GREEDYDATA:url}","errortype":"%{WORD:errortype}","errorinfo":"%{WORD:errorinfo}","postdata":"%{GREEDYDATA:postdata}","methodtype":"%{WORD:methodtype}","servername":"%{HOST:servername}","gaggleid":"%{GREEDYDATA:gaggleid}","date":"%{TIMESTAMP_ISO8601:date}","firstname":"%{WORD:firstname}","lastname":"%{WORD:lastname}"\} '
}
}
}
}
"Fails from the beginning", indeed! See this?
'message' => ' \{"casename"
^^^
There's no initial (or trailing) space in your input, but you have them in your pattern. Remove them, and it works fine in logstash.
BTW, have you seen the json codec or filter?