I've got a log like this:
ERROR_MESSAGE:Invalid Credentials,THROTTLED_OUT_REASON:API_LIMIT_EXCEEDED
I'm trying to parse it with grok using grok debugger:
ERROR_MESSAGE:%{GREEDYDATA:errorMassage},THROTTLED_OUT_REASON:%{GREEDYDATA:throttledOutReason}
It works, but sometimes the log comes without THROTTLED_OUT_REASON field.
ERROR_MESSAGE:%{GREEDYDATA:errorMassage}
In that case I tried below code since THROTTLED_OUT_REASON is an optional field.
ERROR_MESSAGE:%{GREEDYDATA:errorMassage}(,THROTTLED_OUT_REASON:%{GREEDYDATA:throttledOutReason})?
So this should work for both cases. The given output for the log with optional field is:
{
"errorMassage": [
[
"Invalid Credentials,THROTTLED_OUT_REASON:API_LIMIT_EXCEEDED"
]
],
"throttledOutReason": [
[
null
]
]
}
But the expected output for the log with optional field:
{
"errorMassage": [
[
"Invalid Credentials"
]
],
"throttledOutReason": [
[
"API_LIMIT_EXCEEDED"
]
]
}
expected output for the log without optional field:
{
"errorMassage": [
[
"Invalid Credentials"
]
],
"throttledOutReason": [
[
null
]
]
}
Can anyone suggest a solution which gives correct output for both type of logs?
Since you use GREEDYDATA it "eats" as much as it can get in order to fill errormessage.
I do not know GROK enough to tell you what alternative defined patterns there are, but you should be able to use a custom pattern:
ERROR_MESSAGE:(?<errorMassage>.*?),THROTTLED_OUT_REASON:%{GREEDYDATA:throttledOutReason}
I got the answer using #Skeeve 's idea.
Here it is for anyone who would come up with a similar question:
I've used custom pattern in order to avoid excess eating of GREEDYDATA (for errorMessage field).
ERROR_MESSAGE:(?<errorMassage>([^,]*)?)(,THROTTLED_OUT_REASON:%{GREEDYDATA:throttledOutReason})?
Related
Hello I have below log
12-Apr-2021 16:11:41.078 WARNING [https-jsse-nio2-8443-exec-3] org.apache.catalina.realm.LockOutRealm.filterLockedAccounts An attempt was made to authenticate the locked user [user1]
I am trying to build a pattern for these for logstash.
I have following
%{MY_DATE_PATTERN:timestamp}\s%{WORD:severity}\s\[%{DATA:thread}\]\s%{NOTSPACE:type_log}
which parses below
{
"timestamp": [
"12-Apr-2021 16:01:01.505"
],
"severity": [
"FINE"
],
"thread": [
"https-jsse-nio2-8443-exec-8"
],
"type_log": [
"org.apache.catalina.realm.CombinedRealm.authenticate"
]
}
My Date stamp is a custom pattern it works with grok debugger but not with the system that i am using so i would need help to get date and time with regex. would anyone help me please?
12-Apr-2021 16:11:41.078 GROK REGEX for this
Instead of %{MY_DATE_PATTERN:timestamp}, you can use
(?<timestamp>%{MONTHDAY}-%{MONTH}-%{YEAR} %{HOUR}:%{MINUTE}:%{SECOND})
Legend:
%{MONTHDAY} - (?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9])
%{MONTH} - \b(?:Jan(?:uary|uar)?|Feb(?:ruary|ruar)?|M(?:a|รค)?r(?:ch|z)?|Apr(?:il)?|Ma(?:y|i)?|Jun(?:e|i)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|O(?:c|k)?t(?:ober)?|Nov(?:ember)?|De(?:c|z)(?:ember)?)\b
%{YEAR} - (?>\d\d){1,2}`
%{HOUR} - (?:2[0123]|[01]?[0-9])
%{MINUTE} - (?:[0-5][0-9])
%{SECOND} - (?:(?:[0-5]?[0-9]|60)(?:[:.,][0-9]+)?).
I am building an Angular application and trying to figure out the way to write ngsw-config.json -file in order to define rules for service worker.
I assumed that regex would be recognized as regex in configuration file and not interpret as normal characters / text automatically, but it was not so. I have for example following piece of a code:
"name": "authentication",
"urls": [
"/login",
"/.*authentication.*"
],
part .* is not in my understanding recognized as regex (regex meaning in this case that any path that has text "authentication" would fall into this category, right?). This piece of a configuration tries to prevent service worker to take a lead in these two cases, it works with /login, but not with authentication part.
Question:
Can I somehow modify my file to make it recognize regex definitions?
According to the documentation at https://angular.io/guide/service-worker-config
you can use a limited glob format.
I don't know what kind of url you want to match.
Option: If you want to match a url like /foo/bar/authentication/foo2/bar2 you could use:
"name": "authentication",
"urls": [
"/login",
"/**/authentication/**/*"
],
Option: If you want to match a url like /foo/bar/something-authentication-otherthing/foo2/bar2 you could use:
"name": "authentication",
"urls": [
"/login",
"/**/*authentication*/**/*"
],
I'm testing API with https://cloud.google.com/datastore/docs/reference/data/rest/v1/projects/lookup
The following brings a found result with data. I would like to use a regular expression with bring back all records with name having the number 100867. All my attempts result wit a missing result set.
i.e. change to "name": "/1000867.*/"
{
"keys": [
{
"path": [
{
"kind": "Job",
"name": "1000867:100071805:1"
}
]
}
]
}
The Google documentation for lookup key states that the name is a "string" and that
The name of the entity. A name matching regex __.*__ is reserved/read-only. A name must not be more than 1500 bytes when UTF-8 encoded. Cannot be "".
The regex part threw me off and the solution was to use runQuery!
Consider this closed.
Trouble with regex and gather all data between [ and ].
Testing with the program: http://regexr.com/
String data
{
"Items": [
{
"UserID": "1487840267893246",
"Timestamp": 1487204364877,
},
{
"UserID": "1487840267893336",
"Timestamp": 1487204364888,
}
],
"Count": 2,
"ScannedCount": 3
}
The below (fired in AWS lambda) has the intention of pulling all chars between the [ and ] and outputting it. (\[[^]*\]) works with the regex calc above, but only returns "undefined" in Lambda. Why?
Items = data.match(/"(\[[^]*\])"/);
console.log(Items);
An alternative solution was to extract the data into an array as follows
userID = data.match(/"UserID":"([^"]+)"/g);
console.log(userID);
Try the dotall flag:
Items = data.match(/"(?s)\[.*\]");
And you didn't need those brackets.
i'm with a throble in regex
Input example:
/aaaa/admin.php?file=xpto.js&version=abcd123
/aaaa/admin.php
Output 1 -
url => /aaaa/admin.php
var => file=xpto.js&version=abcd123
Output 2 -
url => /aaaa/admin.php
i tried %{NOTSPACE:url}(?:/?%{NOTSPACE:var}) and a others but not worked
You may use
%{URIPATH:path}(?:%{URIPARAM:param})?
The patterns are provided at https://github.com/elastic/logstash/blob/v1.4.2/patterns/grok-patterns.
The %{URIPATH:path} will match the path, while (?:%{URIPARAM:param})? will match 1 or 0 occurrences (due to the optional non-capturing group (?:...)?) of the query string.
If you need to get rid of the ? in the param, you may also use
(?<path>(?:/[A-Za-z0-9$.+!*'(){},~:;=##%_-]*)+)(?:\?(?<param>[A-Za-z0-9$.+!*'|(){},~##%&/=:;_?\[\]-]*))?
The output for the /aaaa/admin.php?file=xpto.js&version=abcd123 input:
{
"path": [
[
"/aaaa/admin.php"
]
],
"param": [
[
"?file=xpto.js&version=abcd123"
]
]
}
The output for /aaaa/admin.php:
{
"path": [
[
"/aaaa/admin.php"
]
],
"param": [
[
null
]
]
}
Try this regex :
(%{NOTSPACE:url})(?:\?(%{NOTSPACE:var}))?
Demo : http://regexr.com/3f6sm
Is this what your looking for?
([^\s?]+)(?:\?(\S+))?
You can test it here.
Also, you could just split the url string on ?