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.
Related
I'm trying to build a new ELK project. I'm a newbie here so not sure what I'm missing. I'm trying to move very huge logs to ELK and while doing so, its timing out in KV filter with the error "Timeout reached in KV filter with value entry too large".
My logstash is in the below format:
grok {
match => [ "message", "(?<timestamp>%{MONTHDAY:monthday} %{MONTH:month} %{YEAR:year} % {TIME:time} \[%{LOGLEVEL:loglevel}\] %{DATA:requestId} \(%{DATA:thread}\) %{JAVAFILE:className}: %{GREEDYDATA:logMessage}" ]
}
kv {
source => logMessage"
}
Is there a way, i can skip execution to go through kv filter when the logs are huge? If so, can someone guide me on how that can be done.
Thank you
I have tried multiple things but nothing seemed to work.
I solved this by using dissect.
The query was something along the lines of:
dissect{
mapping => { "message" => "%{[#metadata][timestamp] %{[#metadata][timestamp] %{[#metadata][timestamp] %{[#metadata][timestamp] %{loglevel} %{requestId} %{thread} %{classname} %{logMessage}"
}
I've been going at this for weeks now and I can't seem to wrap my head around what's wrong about this.
I'm trying to get all of these lines to fit into a multiline match with grok, but it only picks up the last one, and even discards the digit at the beginning of the line.
11:31:03.936 < : 1> 5: Load times per type (ms):
12: aaaaaa.aaaaaaaaa.aaaaaaa.aaaaaaa
1: bbbb.bbbb.bbbbbbbbbbbbb.bbbbbbbbb
3: cccc.cccccccc.ccccccccccc.cccccc
64: ddd.dddddddddddd.ddddddd.ddddddd
Expected result:
message_processed = Load times per type (ms):
12: aaaaaa.aaaaaaaaa.aaaaaaa.aaaaaaa
1: bbbb.bbbb.bbbbbbbbbbbbb.bbbbbbbbb
3: cccc.cccccccc.ccccccccccc.cccccc
64: ddd.dddddddddddd.ddddddd.ddddddd
Actual result:
message_processed = ddd.dddddddddddd.ddddddd.ddddddd
I'm using the following grok pattern:
grok {
match => [ "message" , "%{TIME:time}.*%{NUMBER:loglevel}:\s%{GREEDYDATA:message_processed}" ]
}
It is being shipped to logstash with filebeat on a windows server with the following multi-line config in filebeat.yml:
multiline.pattern: ^[0-9]{2}\:[0-9]{2}\:[0-9]{2}
multiline.negate: true
multiline.match: after
I've tried using (?m) flag but to no avail, and using multi-line codec with filebeat is a no-go according to the official documentation.
What am I doing wrong?
Try the following:
%{TIME:time}.*%{NUMBER:loglevel}:\s(?<message_processed>(.|\r|\n)*)
As pointed out here GREEDYDATA won't match newlines while (?<message>(.|\r|\n)*) will. So the above works for me.
See the results for your example with your multiline config on https://grokconstructor.appspot.com/do/match:
when trying to load a file into elastic, using logstash that is running the config file below, I get the following output msgs on elastic and no file is loaded (when input is configured to be stdin everything seems to be working just fine)
[2014-08-20 10:51:10,957][INFO ][cluster.service ] [Max] added {[logsta
sh-GURWB02038-5480-4002][dstQagpWTfGkSU5Ya-sUcQ][GURWB02038][inet[/10.203.152.13
9:9301]]{client=true, data=false},}, reason: zen-disco-receive(join from node[[l
ogstash-GURWB02038-5480-4002][dstQagpWTfGkSU5Ya-sUcQ][GURWB02038][inet[/10.203.1
52.139:9301]]{client=true, data=false}])
Logstash Config File that I used is below:-
input {
file {
path => "D:/example.log"
}
}
output {
elasticsearch {
host => "localhost"
}
}
You might be missing start_position.
Try with something like this.
input {
file {
path => "D:/example.log"
start_position => "beginning"
}
}
Also take the "first contact" restriction into account, according to the documentation.
start_position
Value can be any of: "beginning", "end"
Default value is "end"
Choose where Logstash starts initially reading files: at the beginning or at the end.
The default behavior treats files like live streams and thus starts at the end.
If you have old data you want to import, set this to ‘beginning’
This option only modifies “first contact” situations where a file is new and not seen
before. If a file has already been seen before, this option has no effect.
Hope this helps.
From all the examples it seems that the syntext is:
output {
elasticsearch {
host => localhost
}
}
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/
I am trying to parse a folder with logstash on windows but I have some strange results.
I have a file samplea.log with the following content :
1
2
3
4
5
I have a file sampleb.log with the following content:
6
7
8
9
10
This is my config file:
input {
file {
path=> "C:/monitoring/samples/*.log"
}
}
output {
stdout { debug => "true" }
elasticsearch {
protocol => "transport"
host => "127.0.0.1"
}
}
For unknown reasons, the events displayed on my console are 6,7,8,9 and the same events are stored in elasticsearch. The last line of my file sampleb is ignored and the whole file samplea is ignored.
Thanks in advance for your help.
To solve this problem, I've patched original logstash (1.4.2) distribution with the filewatch-0.6.1 gem (original is filewatch-0.5.1)
Logstash is delimiting lines with return character. Make sure you hit enter on the last line.
Known bug, the inner library tracks the file with inode. On Windows the library use a function that always return 0. In your case, I think logstash reads the simpleb.log, then reads simplea.log from index 6, which is end-of-file.
Bug tracked here : https://github.com/logstash-plugins/logstash-input-file/issues/2