I am new to logstash.When I am trying to put a if statement in logstash config file it gives me error
if statement used is:
if {await} > 10
{ mutate {add_field => {"RULE_DATA" => "Value is above threshold"}
add_field => {"ACTUAL_DATA" => "%{await}"}
}
}
the error faced is given below:
[ERROR] 2018-07-20 16:52:21.327 [Ruby-0-Thread-1: /usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:22] agent - Failed to execute action {:action=>LogStash::PipelineAction::Create/pipeline_id:main, :exception=>"LogStash::ConfigurationError", :message=>"Expected one of #, => at line 18, column 10 (byte 729) after filter{\n grok {\n patterns_dir => [\"./patterns\"]\n match => { \"message\" => [\"%{TIME:time}%{SPACE}%{USERNAME:device}%{SPACE}%{USERNAME:tps}%{SPACE}%{SYSLOGPROG:rd_sec/s}%{SPACE}%{SYSLOGPROG:wr_sec/s}%{SPACE}%{SYSLOGPROG:avgrq-sz}%{SPACE}%{SYSLOGPROG:avgqu-sz}%{SPACE}%{NUMBER:await}%{SPACE}%{SYSLOGPROG:svctm}%{SPACE}%{SYSLOGPROG:%util}\"]\n }\n overwrite => [\"message\"]\n } \n if \"_grokparsefailure\" in [tags] {\n drop { }\n }\nif {await", :backtrace=>["/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:42:in compile_imperative'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:50:incompile_graph'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:12:in block in compile_sources'", "org/jruby/RubyArray.java:2486:inmap'", "/usr/share/logstash/logstash-core/lib/logstash/compiler.rb:11:in compile_sources'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:51:ininitialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:169:in initialize'", "/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:40:inexecute'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:315:in block in converge_state'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141:inwith_pipelines'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:312:in block in converge_state'", "org/jruby/RubyArray.java:1734:ineach'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:299:in converge_state'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:166:inblock in converge_state_and_update'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141:in with_pipelines'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:164:inconverge_state_and_update'", "/usr/share/logstash/logstash-core/lib/logstash/agent.rb:90:in execute'", "/usr/share/logstash/logstash-core/lib/logstash/runner.rb:348:inblock in execute'", "/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:24:in `block in initialize'"]}
Please suggest what has caused this error.
You have a syntax error. If you have a field as name it await. Like output of grok parse etc.
use the below
if [await] > 10
{
mutate {
add_field => {"RULE_DATA" => "Value is above threshold"}
add_field => {"ACTUAL_DATA" => "%{await}"}
}
}
Logstash conditional's expression enclosed in [] not {}, have a look at the following example from conditional documentation,
filter {
if [action] == "login" {
mutate { remove_field => "secret" }
}
}
Related
I need to parse nginx log using Logstash, I found out this question:
Nginx grok pattern for logstash
I want to try the pattern in the question, so I create the configuration file with this content:
input {
file {
path => "/var/log/nginx/access.log"
type => "access"
}
}
filter {
grok {
match => {
"message" => '%{IPORHOST:clientip} %{NGUSER:ident} %{NGUSER:auth} \[%{HTTPDATE:timestamp}\] \"(?:%{WORD:verb} %{NOTSPACE:request}(?: HTTP/%{NUMBER:httpversion})?|-)\"%{NUMBER:response} (?:%{NUMBER:bytes}|-) %{NOTSPACE:querystring} (?:"(?:%{URI:referrer}|-)"|%{QS:referrer})%{QS:agent} %{IPORHOST:forwardedfor} %{IPORHOST:host} %{NUMBER:upstreamresponse} (?:-|%{NUMBER:cache})'
}
}
}
output {
stdout {}
}
But I get the error:
[2021-03-24T13:25:53,424][ERROR][logstash.javapipeline ][main] Pipeline error {:pipeline_id=>"main", :exception=>#<Grok::PatternError: pattern %{NGUSER:ident} not defined>, :backtrace=>["/home/ubuntu/logstash-7.12.0/vendor/bundle/jruby/2.5.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:123:in `block in compile'", "org/jruby/RubyKernel.java:1442:in `loop'", "/home/ubuntu/logstash-7.12.0/vendor/bundle/jruby/2.5.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:93:in `compile'", "/home/ubuntu/logstash-7.12.0/vendor/bundle/jruby/2.5.0/gems/logstash-filter-grok-4.4.0/lib/logstash/filters/grok.rb:282:in `block in register'", "org/jruby/RubyArray.java:1809:in `each'", "/home/ubuntu/logstash-7.12.0/vendor/bundle/jruby/2.5.0/gems/logstash-filter-grok-4.4.0/lib/logstash/filters/grok.rb:276:in `block in register'", "org/jruby/RubyHash.java:1415:in `each'", "/home/ubuntu/logstash-7.12.0/vendor/bundle/jruby/2.5.0/gems/logstash-filter-grok-4.4.0/lib/logstash/filters/grok.rb:271:in `register'", "org/logstash/config/ir/compiler/AbstractFilterDelegatorExt.java:75:in `register'", "/home/ubuntu/logstash-7.12.0/logstash-core/lib/logstash/java_pipeline.rb:228:in `block in register_plugins'", "org/jruby/RubyArray.java:1809:in `each'", "/home/ubuntu/logstash-7.12.0/logstash-core/lib/logstash/java_pipeline.rb:227:in `register_plugins'", "/home/ubuntu/logstash-7.12.0/logstash-core/lib/logstash/java_pipeline.rb:586:in `maybe_setup_out_plugins'", "/home/ubuntu/logstash-7.12.0/logstash-core/lib/logstash/java_pipeline.rb:240:in `start_workers'", "/home/ubuntu/logstash-7.12.0/logstash-core/lib/logstash/java_pipeline.rb:185:in `run'", "/home/ubuntu/logstash-7.12.0/logstash-core/lib/logstash/java_pipeline.rb:137:in `block in start'"], "pipeline.sources"=>["/home/ubuntu/logstash-7.12.0/config/pipeline.conf"], :thread=>"#<Thread:0x175b972c run>"}
In this particular case, I want to make NGUSER equal to [a-zA-Z\.\#\-\+_%]+
So there comes my question: Where do I define custom grok tags?
You can use the pattern_definitions option to the grok filter
grok {
pattern_definition => {
"NGUSER" => "[a-zA-Z\.\#\-\+_%]+"
}
match => { "message" => '%{IPORHOST:clientip} %{NGUSER:ident} %{NGUSER:auth} \[%{HTTPDATE:timestamp}\] \"(?:%{WORD:verb} %{NOTSPACE:request}(?: HTTP/%{NUMBER:httpversion})?|-)\"%{NUMBER:response} (?:%{NUMBER:bytes}|-) %{NOTSPACE:querystring} (?:"(?:%{URI:referrer}|-)"|%{QS:referrer})%{QS:agent} %{IPORHOST:forwardedfor} %{IPORHOST:host} %{NUMBER:upstreamresponse} (?:-|%{NUMBER:cache})' }
}
or, if you think you might want to share the patterns across multiple instances you can use the patterns_dir option
grok {
patterns_dir => [ "/home/user/patterns/" ]
match => { "message" => '%{IPORHOST:clientip} %{NGUSER:ident} %{NGUSER:auth} \[%{HTTPDATE:timestamp}\] \"(?:%{WORD:verb} %{NOTSPACE:request}(?: HTTP/%{NUMBER:httpversion})?|-)\"%{NUMBER:response} (?:%{NUMBER:bytes}|-) %{NOTSPACE:querystring} (?:"(?:%{URI:referrer}|-)"|%{QS:referrer})%{QS:agent} %{IPORHOST:forwardedfor} %{IPORHOST:host} %{NUMBER:upstreamresponse} (?:-|%{NUMBER:cache})' }
}
and create a file in that directory that contains
NGUSER [a-zA-Z\.\#\-\+_%]+
Hi Im trying to set up a log analysis with Filebeat and Logstash.
Below are the changes i made in
filebeat.inputs:
- type: log
enabled: true
paths:
- D:\elasticsearch-5.4.3\elasticsearch-5.4.3\logs\elasticsearch.log
output.logstash:
# The Logstash hosts
hosts: ["localhost:5044"]
And here is my logstash configuration file.
input {
beats {
port => 5044
}
}
filter {
grok {
match => { "message" => "%{plugins}" }
}
date {
match => [ "timestamp" , "yyyy-MM-DD:HH:mm:ss" ]
}
}
output {
elasticsearch {
hosts => ["localhost:9200"]
}
}
While running the above, i see the below error:
[2019-10-22T06:07:32,915][ERROR][logstash.javapipeline ] Pipeline aborted due
to error {:pipeline_id=>"main", :exception=>#<Grok::PatternError: pattern %{plu
gins} not defined>, :backtrace=>["D:/logstash-7.1.0/logstash-7.1.0/vendor/bundle
/jruby/2.5.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:123:in `block in compile'", "
org/jruby/RubyKernel.java:1425:in `loop'", "D:/logstash-7.1.0/logstash-7.1.0/ven
dor/bundle/jruby/2.5.0/gems/jls-grok-0.11.5/lib/grok-pure.rb:93:in `compile'", "
D:/logstash-7.1.0/logstash-7.1.0/vendor/bundle/jruby/2.5.0/gems/logstash-filter-
grok-4.0.4/lib/logstash/filters/grok.rb:281:in `block in register'", "org/jruby/
RubyArray.java:1792:in `each'", "D:/logstash-7.1.0/logstash-7.1.0/vendor/bundle/
jruby/2.5.0/gems/logstash-filter-grok-4.0.4/lib/logstash/filters/grok.rb:275:in
`block in register'", "org/jruby/RubyHash.java:1419:in `each'", "D:/logstash-7.1
.0/logstash-7.1.0/vendor/bundle/jruby/2.5.0/gems/logstash-filter-grok-4.0.4/lib/
logstash/filters/grok.rb:270:in `register'", "org/logstash/config/ir/compiler/Ab
stractFilterDelegatorExt.java:56:in `register'", "D:/logstash-7.1.0/logstash-7.1
.0/logstash-core/lib/logstash/java_pipeline.rb:191:in `block in register_plugins
'", "org/jruby/RubyArray.java:1792:in `each'", "D:/logstash-7.1.0/logstash-7.1.0
/logstash-core/lib/logstash/java_pipeline.rb:190:in `register_plugins'", "D:/log
stash-7.1.0/logstash-7.1.0/logstash-core/lib/logstash/java_pipeline.rb:446:in `m
aybe_setup_out_plugins'", "D:/logstash-7.1.0/logstash-7.1.0/logstash-core/lib/lo
gstash/java_pipeline.rb:203:in `start_workers'", "D:/logstash-7.1.0/logstash-7.1
.0/logstash-core/lib/logstash/java_pipeline.rb:145:in `run'", "D:/logstash-7.1.0
/logstash-7.1.0/logstash-core/lib/logstash/java_pipeline.rb:104:in `block in sta
rt'"], :thread=>"#<Thread:0x15997940 run>"}
[2019-10-22T06:07:32,970][ERROR][logstash.agent ] Failed to execute ac
tion {:id=>:main, :action_type=>LogStash::ConvergeResult::FailedAction, :message
=>"Could not execute action: PipelineAction::Create<main>, action_result: false"
, :backtrace=>nil}
Im rather new to this intergration, im not sure of where i should look into.
Please help me.
The problem looks to be with
grok {
match => { "message" => "%{plugins}" }
}
What is %{plugins} here? It is NOT a pre-defined grok pattern. The list of grok patterns can be found here.
Also, the syntax for a grok pattern from documentation is %{SYNTAX:SEMANTIC}. You could do something like
grok {
match => { "message", "%{GREEDYDATA:plugins}" }
}
Try giving data type of the "%{plugins}".
filter {
grok {
match => { "message" => "%{WORD:plugins}" }
}
}
You can find data types from here
If this not working try removing date filter and try again.
Apparently these kind of errors can happen because of some regexp syntax error deep into a config file. That's just crack.
I want use Filebeat with logstash.But the logstash.conf is wrong.
logstash.conf:
```
input {
beats {
port => "5044"
}
}
output {
elasticsearch {
hosts => [ "localhost:9200" ]
}
}
```
It reponse this:
Failed to execute action {:action=>LogStash::PipelineAction::Create/pipeline_id:main, :exception=>"LogStash::ConfigurationError", :message=>"Expected one of #, input, filter, output at line 3, column 1 (byte 76) after ", :backtrace=>["/opt/logstash/logstash-core/lib/logstash/compiler.rb:42:in compile_imperative'", "/opt/logstash/logstash-core/lib/logstash/compiler.rb:50:incompile_graph'", "/opt/logstash/logstash-core/lib/logstash/compiler.rb:12:in block in compile_sources'", "org/jruby/RubyArray.java:2486:inmap'", "/opt/logstash/logstash-core/lib/logstash/compiler.rb:11:in compile_sources'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:51:ininitialize'", "/opt/logstash/logstash-core/lib/logstash/pipeline.rb:171:in initialize'", "/opt/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:40:inexecute'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:335:in block in converge_state'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:141:inwith_pipelines'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:332:in block in converge_state'", "org/jruby/RubyArray.java:1734:ineach'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:319:in converge_state'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:166:inblock in converge_state_and_update'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:141:in with_pipelines'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:164:inconverge_state_and_update'", "/opt/logstash/logstash-core/lib/logstash/agent.rb:90:in execute'", "/opt/logstash/logstash-core/lib/logstash/runner.rb:343:inblock in execute'", "/opt/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:24:in `block in initialize'"]}
The beats plugin is wrong. The port should be a number.
https://www.elastic.co/guide/en/logstash/current/plugins-inputs-beats.html
Also you have no filter plugin, maybe that will be necessary too:
input {
beats {
port => 5044
}
}
filter{}
output {
elasticsearch {
hosts => [ "localhost:9200" ]
}
}
I got this exception in logstash log when I run it.
[2018-01-14T15:42:00,912]
[ERROR][logstash.outputs.elasticsearch]
Unknown setting 'host' for elasticsearch
[2018-01-14T15:42:00,921][ERROR][logstash.agent] Failed to execute action {:action=>LogStash::PipelineAction::Create/
pipeline_id:main, :exception=>"LogStash::ConfigurationError",
:message=>"Something is wrong with your configuration.",
:backtrace=>["/usr/share/logstash/logstash-core/lib/logstash/config
/mixin.rb:89:in config_init
"/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:63:in
initialize'",
"/usr/share/logstash/logstash-core/lib/logstash/output_delegator_strategies/shared.rb:3:in
initialize'",
"/usr/share/logstash/logstash-core/lib/logstash/output_delegator.rb:25:in
initialize'",
"/usr/share/logstash/logstash-core/lib/logstash/plugins/plugin_factory.rb:86:in
plugin'",
"/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:114:in
plugin'", "(eval):87:in <eval>'","org/jruby/RubyKernel.java:994:in
eval'",
"/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:86:in
initialize'",
"/usr/share/logstash/logstash-core/lib/logstash/pipeline.rb:171:in
initialize'",
"/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:40:in
execute'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:335:inblock
in converge_state'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141:in
with_pipelines'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:332:inblock
in converge_state'", "org/jruby/RubyArray.java:1734:in each'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:319:in
converge_state'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:166:in block
in converge_state_and_update'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:141:in
with_pipelines'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:164:in
converge_state_and_update'",
"/usr/share/logstash/logstash-core/lib/logstash/agent.rb:90:in
execute'",
"/usr/share/logstash/logstash-core/lib/logstash/runner.rb:343:in
block in execute'",
"/usr/share/logstash/vendor/bundle/jruby/2.3.0/gems/stud-0.0.23/lib/stud/task.rb:24:in
block in initialize'"]}
It is my configure:
input{
lumberjack {
port => 5044
type => "logs"
ssl_certificate => "/etc/pki/tls/certs/logstash-forwarder.crt"
ssl_key => "/etc/pki/tls/private/logstash-forwarder.key"
}
}
filter{
if[type] == "syslog" {
grok {
match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:sysylog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" }
add_field => ["received_at", "%{#timestamp}" ]
add_field => ["received_from", "%{host}" ]
}
syslog_pri {}
date {
match => ["syslog_timestamp", "MMM d HH:mm:ss", "MMM dd HH:mm:ss" ]
}
}
}
output{
elasticsearch { host =>localhost }
stdout { codec => rubydebug }
}
How can I solve it . thank you.
I use latest version of ELK
If you check your output elasticsearch plugin, it has host parameter.
It needs a hosts parameter and a string array.
https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-hosts
My logstash->elastic plugin looks like this:
elasticsearch{
hosts=>["localhost:9200"]
index=>"logstash-%{+YYYY.MM.dd}"
}
You might need the index parameter set too.
I am new to ELK stack. I am trying to write one grok expression for the following log statement
2017-10-26 19:20:28.538 ERROR --- [logAppenderService] [Serv01] [restartedMain] ns.pcs.log.appender.LogAppender : [1234] doStuff Some statement here - {}
java.lang.Exception: Hello World
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
I have written the following logstash configuration:
input{
kafka {
type => "mylog"
topic_id => 'mylog'
}
}
filter{
if [type] == "mylog" {
grok {
match => { "message" => "%{TIMESTAMP_ISO8601:timestamp} %{LOGLEVEL:level} \[%{DATA:serviceName}] \[%{DATA:nodeName}] \[%{DATA:trName}] %{NOTSPACE:className} %{NOTSPACE:':'} \[%{DATA:refName}] %{GREEDYDATA:msg}" }
}
}
}
output{
if [type] == "mylog" {
elasticsearch {
hosts => ["101.18.19.89:9200"]
index => "logstash-%{+YYYY-MM-dd}"
}
}
stdout {
codec => rubydebug
}
}
When I am trying to run the same I am getting json parse exception. Not sure if I am missing something or not. I am really stuck at this stage.
Your problem is that the input is not matching in your pattern
Please try this
%{TIMESTAMP_ISO8601:timestamp} %{LOGLEVEL:level} --- \[%{DATA:serviceName}\] \[%{DATA:nodeName}\] \[%{DATA:trName}\] %{NOTSPACE:className} %{NOTSPACE:':'} \[%{DATA:refName}] %{GREEDYDATA:msg}
you missing the
---
]
pattern
if you still can't please check the mutiline is sending into your log
you could add the mutiline into your input if needed
codec => multiline {
pattern => "^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}[\.,][0-9]{3,7} "
negate => true
what => "previous"
}