I have custom log file and i need to parse it with telegraf parser, this is an example:
2018-12-03 13:51:31,682 grafana s.testname EXPERTISE
full_access,mentor,employee EXPERTISE_LIST
I created a pattern but gives an error
patterns = ["%{TIMESTAMP_ISO8601:timestamp}" "%{WORD:grafana}" "%{DATA:user}" "%{DATA:project}" "%{DATA:permissions}" "%{DATA:action}" "%{DATA:additional}"] i
done this pattern but its not working
I cant understand what i'm doing wrong.
I don't know exactly what are you doing, but your pattern is wrong. You are splitting it into multiple patterns that will never work.
I make a try with your example with this pattern:
%{TIMESTAMP_ISO8601:timestamp} %{WORD:grafana} %{DATA:user} %{DATA:project} %{DATA:permissions} %{WORD:action}
And it works.
You can try it here.
Related
I'm a beginner in writing grok patterns and I'm unable to figure out how to write custom grok pattern for this
I0224 22:37:20.377508 2437 zookeeper_watcher.cpp:326] Zk Session
Disconnected, notifying watchers
"I" being log_severity. and "0224" is in MMDD format.
I've tried to work in https://grokdebug.herokuapp.com/ with the standard grok patterns but I'm unable to seperate log_severity from month and day.
Really appreciate any help or directions.
Thanks!
%{DATA:severity}%{MONTHNUM:month}%{MONTHDAY:day} %{TIME:timestamp}%{SPACE}%{INT:num}%{SPACE}%{GREEDYDATA:message}
This is what I've come up with after quite a bit of researching. Hopefully it'll be useful for someone who's looking!
i am facing an issue in parsing the below pattern
the log file will have log importance in the form of == or <= or >= or << or >>
I am trying the below custom pattern. Some of the log msgs may not have this pattern, so I am using *
(?(=<>)*)
But the log mesages are not parsing and give 'grokparsefailure'
kindly check and suggest if the above pattern is wrong.. Thanks much
below pattern is working fine.
(?[=<>]*)
the one which I used earlier and was erroring is
(?(=<>)*)
One thing to note, there is a better way to handle the "some do, some don't" aspect of your log-data.
(?<Importance>(=<>)*)
That will match more than you want. To get the sense of 'sometimes':
((?<Importance>(=<>)*)|^)
This says, match these three characters and define the field Importance, or leave the field unset.
Second, you're matching specifically two characters, in combinations:
((?<Importance>(<|>|=){2})|^)
This should match two instances of any of the trio of characters you're looking for.
i am trying to parse the below log
2015-07-07T17:51:30.091+0530,857,SelectAppointment,Non HTTP response code: java.net.URISyntaxException,FALSE,8917,20,20,0,1,1,byuiepsperflg01
Now I am unable to parse Non HTTP response code: java.net.URISyntaxException in one field. Please help be build the pattern
This is the pattern I'm using
%{TIMESTAMP_ISO8601:log_timestamp}\,%{INT:elapsed}\,%{WORD:label}\,%{INT:responsecode}\,%{WORD:responsemessage}\,%{WORD:success}\,%{SPACE:faliusemessage}\,%{INT:bytes}\,%{INT:grpThreads}\,%{INT:allThreads}\,%{INT:Latency}\,%{INT:SampleCount}\,%{INT:ErrorCount}\,%{WORD:Hostname}
If you paste your input and pattern into the grok debugger, it says "Compile ERROR". It might be an SO problem, but you had some weird characters in your pattern ("<200c><200b>").
The trick to building custom patterns is to start at the left side and pull one piece off at a time. With that, you would notice that this partial pattern works:
%{TIMESTAMP_ISO8601:log_timestamp},%{INT:elapsed},%{WORD:label}
but this one returns "No Matches":
%{TIMESTAMP_ISO8601:log_timestamp},%{INT:elapsed},%{WORD:label},%{INT:responsecode}
because you don't have an integer in that position.
Continue adding fields one at a time until everything you want is matched.
Note that you don't have to escape the commas.
I am trying to define a route in express js that takes an unknown amount N of parameters. It should match the following routes, capturing all digit groups:
/scope
/scope/1/12
/scope/1/12/123
etc.
I wrote a regex for the matching of the n-amount of numbers, as follows:
/(?:\/?(\d+)\/?)/g
The global /g however doesn't seem to be allowed, see (The regex parser of express js on github). Am I doing something wrong here? I could solve this very ugly and dirty by doing something like:
^\/scope\/?(\d+)?\/?(\d+)?\/?(\d+)?
But this is not dynamic, feels dirty and if I add deeper levels of scoping I always will need to add more /?(\d+) regex parts, which is a model that does not fit my business logic. I am shure there must be a better way...
Okay, after a discussion with #vks, which was useful but unfortunately not answering the question, we came to the conclusion that this is not a regex problem. With the \g modifier a regex capturing all digit groups can quite easily be written, even in javascripts very limited regex engine.
The question now becomes more clearly formulated: since expressjs does not allow a full regex from begin to end, but rather encloses the regex you use in a route in it's own begin and end of a regex, not allowing /g modifiers, what is the expressjs idiomatic way to solve this problem?
^\/scope(?:\/\d+)*$
You can try this.See demo.
https://regex101.com/r/eZ0yP4/30
can somebody tell me how to use wildcards in the router table of node-http-proxy?
for example for wildcard subdomains, something like *.domain.de
i know there are RegEx used but i cant get it to work.
i tried like
'([a-zA-Z0-9_]).domain.de': '127.0.0.1:8085',
and
'([^.]*).domain.de' : '127.0.0.1:8085'
but none seem to redirect.
I've not done this myself but I would think that the whole string needs to be a regular expression. So it would be something like:
'[a-zA-Z0-9_]\.domain\.de': '127.0.0.1:8085',
Note the escaping of the dots. In fact, this would be simpler (though perhaps not as secure) if that format is correct:
'.*\.domain\.de': '127.0.0.1:8085',
Or even:
'\w*\.domain\.de': '127.0.0.1:8085',
Sadly, and as usual with all things Node, you are expected to "know" this stuff - mainly by reading the source code :( This is one of the key issues that puts me off using Node in the real world.