The log content like this:
[2018-07-09 11:30:59] [13968] [INFO] [1e74b6b7-fcb2-4dde-a259-7db1de0350ea] run entry() 11ms
[2018-07-09 11:30:59] [13968] [INFO] [1e74b6b7-fcb2-4dde-a259-7db1de0350ea] entry done
The first line logged function call info with exec time, other line is normal log.
Now, I want to match all of them, and if there is exec time in the line, I want to match it.
I write grok pattern like this:
\[%{TIMESTAMP_ISO8601:timestamp}\] \[%{NUMBER:process_id}\] \[%{LOGLEVEL:loglevel}\] \[%{UUID:request_id}\] %{DATA:message}(\s%{NUMBER:use_time}ms)?
it dose not work. The match result is:
{
"process_id": "13968",
"loglevel": "INFO",
"message": "",
"request_id": "1e74b6b7-fcb2-4dde-a259-7db1de0350ea",
"timestamp": "2018-07-09 11:30:59"
}
if change DATA:message to GREEDYDATA:message, it can not match exec time.
I solved it by using raw regexp to replace total message field:
\[%{TIMESTAMP_ISO8601:timestamp}\] \[%{NUMBER:process_id}\] \[%{LOGLEVEL:loglevel}\] \[%{UUID:request_id}\] (?<message>.+ (?:(?<use_time>\d+(?:\.\d+)?)ms)?.*)
Related
I have the following log:
2018-10-30 11:47:52 INFO 30464 SMS-MT [cid:300038] [queue-msgid:bb7a195d-fb23-42ae-bbfa-d2dcda405af9] [smpp-msgid:j.11082.639364178944.#MARKET SETU] [status:ESME_ROK] [prio:1] [dlr:NO_SMSC_DELIVERY_RECEIPT_REQUESTED] [validity:none] [from:2323232] [to:23232132312] [content:'#MARKET SETUP\nadsadadadadasdasdadaasdada mo ang:\nC jean_rivera\n--Mag reply ng A-C']
I've created a grok filter based on pattern in logstash so I can parse the log the way I want. And I have this:
%{DATESTAMP:Timestamp} %{LOGLEVEL:Level} %{BASE10NUM:Pid} %{USERNAME:SMS_TYPE} %{CID:CID} %{GREEDYDATA:Message}
I'm trying to create a GROK patter that will match 300038, which is the number coming after cid:. The syntax is always the same, [cid:number]. What I have now is:
CID (\[cid:[0-9]{6}\])
but that results into:
"CID": [
[
"[cid:300038]"
]
],
and I only want to match the 300038, without the [cid:] part
I have noticed that there are more than single space character between LOG and pid, you can match all of them using \s*.
To match just a number from [cid:300038] you can use custom pattern, \[cid:(?<CID>[0-9]{1,})\] this will match cid of any length, not just 6 digits.
Your pattern will become,
%{DATESTAMP:Timestamp} %{LOGLEVEL:Level}\s*%{BASE10NUM:Pid} %{USERNAME:SMS_TYPE} \[cid:(?<CID>[0-9]{1,})\] %{GREEDYDATA:Message}
Use
%{DATESTAMP:Timestamp} %{LOGLEVEL:Level} %{BASE10NUM:Pid} %{USERNAME:SMS_TYPE} \[cid:(?<CID>[0-9]{6})\] %{GREEDYDATA:Message}
I am using Telegraf to get logs information from Apache NiFi, for this task I am using this config:
[[inputs.tail]]
## files to tail.
files = ["/var/log/nifi/nifi-app.log"]
## Read file from beginning.
from_beginning = true
#name_override = "nifi_app"
## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
data_format = "grok"
grok_patterns = [ "%{DATE:date} %{TIME:time} %{WORD:EventType} \[%{GREEDYDATA:NifiTask} %{NOTSPACE:Thread}\] %{NOTSPACE:NifiEventType} %{GREEDYDATA:EventText} %{NUMBER:EventDuration} %{WORD:EventDurationUnits}" ]
When I try to start telegraf it give me this error:
Error parsing /etc/telegraf/telegraf.conf, toml: line 10: parse error
The pattern I wrote was tested in a Grok debugger with this text:
2018-08-02 10:53:16,976 INFO [Heartbeat Monitor Thread-1]
o.a.n.c.c.h.AbstractHeartbeatMonitor Finished processing 1 heartbeats
in 11863 nanos
These are the results of some testing:
grok_patterns = ["\[%{GREEDYDATA:NifiTask}\]"] ==> toml: line 10: parse error
grok_patterns = ["[%{GREEDYDATA:NifiTask}]"] ==> Invalid data format: grok
grok_patterns = ['\[%{GREEDYDATA:NifiTask}\]'] ==> Invalid data format: grok
grok_patterns = ["\\[%{GREEDYDATA:NifiTask}\\]"] ==> Invalid data format: grok
grok_patterns = ['[%{GREEDYDATA:NifiTask}]'] -> Invalid data format: grok
The first option for me is the right one, but doesn't works, and the problem seems to be the way the bracket is being escaped.
How is possible to solve this issue?
To fix the issue about escaping bracket, a "partial" solution is to change double quote by simple quote, with this way, in my case (telegraph version 1.13.4) the bracket is correctly escaped by \
There was more than one problem:
First problem: the grok dataformat is added to Telegraf in the 1.8 release (ref), so I must use a nightly install until this version is released.
Second problem: how to escape the brackets, there are problems doing it in a regular way, so what I finally did was to put this part in a custom pattern file, this way it works perfectly.
I have a filter that looks like so:
multiline {
pattern => "(^.+Exception.*)|(^\tat .+)"
negate => false
what => "previous"
}
But for some reason, it's not attaching to the previous line for lines with ^\tat. Sometimes it does, but most of the time it doesn't. It attaches to the line way far back. I don't see anything wrong with my code.
Does anyone know if this is a bug?
Edit: This worked properly just now but couple minutes after it doesn't work again. Is it a buffer overflow? How would I debug this?
Edit: Example of success:
2014-06-20 09:09:07,989 http-bio-8080-exec-629 WARN com.rubiconproject.rfm.adserver.filter.impl.PriorityFilter - Request : NBA_DIV=Zedge_Tier1_App_MPBTAG_320x50_ROS_Android&NBA_APPID=4E51A330AD7A0131112022000A93D4E6&NBA_PUBID=111657&NBA_LOCATION_LAT=&NBA_LOCATION_LNG=&NBA_KV=device_id_sha-1_key=5040e46d15bd2f37b3ba58860cc94c1308c0ca4b&_v=2_0_0&id=84472439740784460, Response : Unable to Score Ads.. Selecting first one and Continuing...
java.lang.IndexOutOfBoundsException: Index: 8, Size: 1
at java.util.ArrayList.rangeCheck(ArrayList.java:604)
at java.util.ArrayList.get(ArrayList.java:382)
Edit: Example of failure:
2014-06-20 09:02:31,139 http-bio-8080-exec-579 WARN com.rubiconproject.rfm.adserver.web.AdRequestController - Request : car=vodafone UK&con=0&model=iPhone&bdl=com.racingpost.general&sup=adm,dfp,iAd&id=8226846&mak=Apple&sze=320x50&TYP=1&rtyp=json&app=F99D88D0FDEC01300BF5123139244773&clt=MBS_iOS_SDK_2.4.0&dpr=2.000000&apver=10.4&osver=7.1&udid=115FC62F-D4FF-44E0-8D92-5A060043EFDD&pub=111407&tud=3&osn=iPhone OS&, Response : No Ad Selected to Serve..Exiting
at java.util.ArrayList.get(ArrayList.java:382)
My file has 13000+ lines, and when it errors, it attaches to couple hundred lines back. But strangely each attaches to a line with the exact same offset in between (by offset I mean those couple hundred lines that it skips).
Your logs is java stack logs.
You can try to use this pattern. Use the date as the pattern, which is the beginning of each log.
input {
stdin{}
}
filter {
multiline {
pattern => "^(?>\d\d){1,2}-(?:0?[1-9]|1[0-2])-(?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9])"
what => "previous"
}
}
output {
stdout {
codec => "rubydebug"
}
}
This pattern parses the date, if the line do not start with date, logstash will multiline it.
I have try it with your logs, it's worked on both two logs.
Hope this can help you.
I'm testing grok debugger, but I cannot get it to solve my problem.
sample text:
2014-06-17 04:37:30,317 c.e.A.MyActivity INFO main MyActivity.java 53 com.example.ApLogback.MyActivity$1 onClick logger track
How should I construct a grok regex/pattern string, so that it splits the previous sample text like in the following parts:
{
timestamp:2014-06-17 04:37:30,317
logger:c.e.A.MyActivity
level:info
caller_thread:main
caller_method:MyActivity.java
caller_line:53
caller_class:com.example.ApLogback.MyActivity$1
caller_method: onClick
msg: caller track
}
My current regex is:
(?<timestamp>[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2},[0-9]{3}) (?<logger>.*)
but it only splits the begining of the log string in parts. An example result of my current grok string is:
{
"timestamp": [
[
"2014-06-17 04:37:30,317"
]
],
"logger": [
[
"c.e.A.MyActivity INFO main MyActivity.java 53 com.example.ApLogback.MyActivity$1 onClick logger"
]
]
}
Grok comes with many already-defined patterns that will cover most of your needs, check them out at: Grok Debugger/patterns
As for a concrete answer to your question, here is a quick an dirty example that does what you need. It is just an example of how you can go about using already defined grok patterns to build your own pattern.
(?<timestamp>[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2},[0-9]{3}) (?:%{JAVACLASS:logger}) (?:%{LOGLEVEL:level}) (?:%{WORD:caller_thread}) (?:%{JAVACLASS:caller_file}) (?:%{NONNEGINT:caller_line}) (?:%{JAVACLASS:caller_class}) (?:%{WORD:caller_method}) (?:%{GREEDYDATA:msg})
I am using logstash, elasticsearch and kibana to analyze my logs.
I am alerting via email when a particular string comes into the log via email output in logstash:
email {
match => [ "Session Detected", "logline,*Session closed*" ]
...........................
}
This works fine.
Now, I want to alert on the count of a field (when a threshold is crossed):
Eg If user is field, I want to alert when number of unique users go more than 5.
Can this be done via email output in logstash??
Please help.
EDIT:
As #Alcanzar told I did this:
config file:
if [server] == "Server2" and [logtype] == "ABClog" {
grok{
match => ["message", "%{TIMESTAMP_ISO8601:timestamp} %{HOSTNAME:server-name} abc\[%{INT:id}\]:
\(%{USERNAME:user}\) CMD \(%{GREEDYDATA:command}\)"]
}
metrics {
meter => ["%{user}"]
add_tag => "metric"
}
}
So according to above, for server2 and abclog I have a grok pattern for parsing my file and on the user field parsed by grok I want the metric applied.
I did that in the config file as above, but I get strange behaviour when I check logstash console with -vv.
So if there are 9 log lines in the file it parses the 9 first, after that it starts metric part but there the message field is not the logline in the log file but it's the user-name of my PC, thus it gives _grokparsefailure. Something like this:
output received {
:event=>{"#version"=>"1", "#timestamp"=>"2014-06-17T10:21:06.980Z", "message"=>"my-pc-name",
"root.count"=>2, "root.rate_1m"=>0.0, "root.rate_5m"=>0.0, "root.rate_15m"=>0.0,
"abc.count"=>2, "abc.rate_1m"=>0.0, "abc.rate_5m"=>0.0, "abc.rate_15m"=>0.0, "tags"=>["metric",
"_grokparsefailure"]}, :level=>:debug, :file=>"(eval)", :line=>"137"
}
Any help is appreciated.
I believe what you need is http://logstash.net/docs/1.4.1/filters/metrics.
You'd want to use a metrics tag to calculate the rate of your event, and then use the thing.rate_1m or thing.rate_5m in an if statement around your email output.
For example:
filter {
if [message] =~ /whatever_message_you_want/ {
metrics {
meter => "user"
add_tag => "metric"
}
}
}
output {
if "metric" in [tags] and [user.rate_1m] > 1 {
email { ... }
}
}
Aggregating on the logstash side is fairly limited. It also increases the state size thus memory consumption may grow. Alerts that run on the Elasticsearch layer offer more freedom and possibilities.
Logz.io alerts on top of ELK are offered in the below blog: http://logz.io/blog/introducing-alerts-for-elk/