Good morning all.
I am still pretty new to the elastic stack. I've used it on small scales and it worked great, but I'm getting ready to roll out a much larger aggregation model and wanted to be sure I'm understanding why things are behaving the way they are.
I've currently got beats and syslog systems shipping to to a dev ELK stack with logstash.
I have several systems shipping syslog fine. I added a couple xen hypervisors the other day and they did not show up in the syslog index via Kibana. I checked via tcpdump and the packets were arriving so I created an else statement in the input syslog filter and sent them to a lostandfound index and voila, they are there. Otherwise they are totally normal in Kibana once I get ahold of them and they do not have a grokparsefailure tag.
When I look at them they do have a 'syslog' tag so I'm wondering why they are not being sent to the syslog index?
Below are my syslog filter and es-output.
Thanks ahead of time for any help!
SYSLOG FILTER
input {
syslog {
port => 1514
tags => "syslog"
}
}
filter {
if [type] == "syslog" {
mutate {
}
grok {
match => [ "message", "<%{POSINT:syslog_pri}>%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" ]
}
}
else {
mutate { add_tag => ["lnf"] }
}
}
output {
if [type] == "syslog" and "_grokparsefailure" in [tags] {
file { path => "/var/log/failed_syslog_events-%{+YYYY-MM-dd}" }
}
}
ES OUTPUT
output {
if "beats" in [tags] {
elasticsearch {
hosts => ["x.x.x.x:9200"]
sniffing => false
manage_template => false
index => "%{[@metadata][beat]}-%{+YYYY.MM.dd}"
#index => "test1-%{+YYY.MM.dd}"
document_type => "%{[@metadata][type]}"
}
}
if "syslog" in [tags] {
elasticsearch {
hosts => ["x.x.x.x:9200"]
sniffing => false
index => "syslog-%{+YYYY.MM.dd}"
}
}
if "esx" in [logsource] {
elasticsearch {
hosts => ["x.x.x.x:9200"]
sniffing => false
index => "esx-%{+YYYY.MM.dd}"
}
}
if "lnf" in [tags] {
elasticsearch {
hosts => ["x.x.x.x:9200"]
sniffing => false
index => "lnf-%{+YYYY.MM.dd}"
}
}
}