sending json from one logstash to another - elasticsearch

i have 3 node setup
10.x.x.1 - application and filebeat
10.x.x.2 - machine for parsing and logstash
10.x.x.3 - having centralized logstash node from where we need to push messages into Elastic Search
in 10.x.x.2 when i set the output codec to stdout , i can see the messages coming from 10.x.x.1.
Now, i need to forward all the json messages from 10.x.x.2 to 10.x.x.3 . I tried using TCP. But the messages are not gettting sent.
10.x.x.2 logstash conf file
input {
beats {
port => 5045
}
}
output{
#stdout { codec => rubydebug }
tcp{
host => "10.x.x.3"
port => 3389
}
10.x.x.3 logstash conf file
input{
tcp{
host => "10.x.x.3"
port => 3389
#mode => "server"
#codec => "json"
}
}
output{
stdout{ codec => rubydebug }
}
is there any plugin which can send json data from one logstash to another logstash server

Your config should work.
But you have to be carreful with the "codec" properties.
Try first to set it to "line" on the output AND the input plugins of the two logstash.
And see if log are incoming.
With the codec set to "line" you will have logicly no problem to forward the logs.
Then work on the "json" properties.
Do not forget that you can activate the debug mode of logstash with the argument --debug and you can log with the arguments : -l logFileName
When you start to work with the codec json look for "_jsonparsefailure" tags, which could explain why it do not transfert logs between the two logstash.

Related

Unable to view Apache log in elasticsearch

I have installed ELK stack on windows and configured Logstash to read an Apache Log file. I cant seem to see the output in Elasticsearch. I am very new to ELK stack.
Environment Setup
Elasticsearch: http://localhost:9200/
Logstash :
Kibana : http://localhost:5601/
All 3 applications above are running as a service.
I have created a file called "logstash.conf" to read apache logs in "C:\Elk\logstash\conf\logstash.conf" with the following :
input {
file {
path => "C:\Elk\apache.log"
start_position => "beginning"
}
}
output {
elasticsearch { hosts => ["localhost:9200"] }
}
I then restarted my Logstash service and now wish to see if elasticsearch is indexing the content of my log. How do i go about doing this ?
try adding following lines to your logstash conf and let us know if there are any grokparsing failures...which would mean your pattern used in filter section is not correct..
output {
stdout { codec => json }
file { path => "C:/POC/output3.txt" }
}

Not getting each error email alert from logstash 1.5.4

I have my ELK setup like below:
HOST1: Component(which generates log) + Logstash (To send logs to redis)
HOST2: Redis + Elasticsearch + Logstash ( To parse data based on grok and send it to elasticsearch on same setup)
HOST3: Redis + Elasticsearch + Logstash ( To parse data based on grok and send it to elasticsearch on same setup)
HOST4: nginx + Kibana 4
Now when I send one error log line from logstash to redis, I get double entry in Kibana 4. Like below:
Plus I didnt get any email alert from logstash, although it is configured to send alert when severity == "Erro".
this is part of logstash conf file:
output {
elasticsearch { host => ["<ELK IP>"] port => "9200" protocol => "http" }
if [severity] =~ /Erro/
{
email {
from => "someone#somedomain.com"
subject => "Error Alert"
to => "someone#somedomain.com"
via => "smtp"
htmlbody => "<h2>Error Alert1</h2><br/><br/><div
align='center'>%{message}</div>"
options => [
"smtpIporHost", "smtp.office365.com",
"port", "587",
"domain", "smtp.office365.com",
"userName", "someone#somedomain.com",
"password", "somepasswd",
"authenticationType", "login",
"starttls", "true"
]
}
}
stdout { codec => rubydebug }
}
I am using following custom grok pattern to parse log line:
ABTIMESTAMP %{YEAR}%{MONTHNUM2}%{MONTHDAY} %{USERNAME}
ABLOGLEVEL (Note|Erro|Fatl|Warn|Urgt)
ABLOG %{ABTIMESTAMP:timestamp} %{HOST:hostname} %{WORD:servername} %{INT:pid} %{INT:lwp} %{INT:thread} %{ABLOGLEVEL:severity};%{USERNAME:event}\(%{NUMBER:msgcat}/%{NUMBER:msgnum}\)%{GREEDYDATA:greedydata}
Any help here as, how to get each email alert for every error log line?
Thanks in advance!
resolved it... Actually I was having multiple conf files in logstash/conf.d folder. I removed all unnecessary files and only kept my conf file and now its working. :). Thank you Val for your help

Where does logstash /elasticsearch write data?

In my input section of my logstash config file, I have created a configuration for reading a rabbitMQ queue. Using the RabbitMQ console, I can see logstash drain the queue. However, I have no idea what logstash is doing with the message. Is it discarding it? Is if forwarding it to elasticsearch?
Here's the logstash configuration
input {
rabbitmq {
host => "192.168.34.151"
exchange => an_exchange
key => a_key
queue => a_queue
}
}
output {
elasticsearch {
embedded => true
protocol => http
}
}
edit - removed the bogus comma from the config.

Logstash not writing output to elasticsearch

The code mentioned is my logstash conf file . I provide my nginx access log file as input and output to elasticsearch .I also write the output to a text file which works fine .. But the output is never been written to elasticsearch.
input {
file {
path => "filepath"
start_position => "beginning"
}
}
output {
file {
path => "filepath"
}
elasticsearch {
host => localhost
port => "9200"
}
}
I also tried executing logstash binary from command line using -e option
input { stdin{ } output { elasticsearch { host => localhost } }
which works fine. I get the output written to elasticsearch.. But in the former case i dont . Help me solve this
I tried a few things, I have no idea why your case with just host works. If I try it, i get timeouts. This is the configuration that works for me:
elasticsearch {
protocol => "http"
host => "localhost"
port => "9200"
}
I tried with logstash 1.4.2 and elasticsearch 1.4.4

Unable to load index to elasticsearch using logstash

I'm Unable to load index to elasticsearch using logstash. The follwing are my logstash.conf settings. To me config settings seems fine. Please help if I'm missing something.
Assume that Logstash & elastic search services are running fine.
input {
file {
type => "IISLog"
path => "C:/inetpub/logs/LogFiles/W3SVC1/u_ex140930.log"
start_postition => "beginning"
}
}
output {
stdout { debug => true debug_format => "ruby"}
elasticsearch_http {
host => "localhost"
port => 9200
protocol => "http"
index => "iislogs2"
}
}
You can start with checking the following:
Check the logstash log file for errors.
Run the following command:telnet localhost 9200 and verify you are able to connect.
Check elasticsearch log files for errors.

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