Beat and Logstash - Connection reset by peer
I have in the same machine Elasticsearh, Logstash and Beat/filebeat.
Filebeat is configured to send information to localhost:5043.
Logstash has a pipe configuration listening on port 5043.
If I ran netstat -tuplen I see:
[root@elk bin]# netstat -tuplen | grep 5043
tcp6 0 0 :::5043 :::* LISTEN 994 147016 31435/java
Which means logstash loaded the pipe and is listening on the expected port.
If I telnet to localhost and port 5043:
[root@elk bin]# telnet localhost 5043
Trying ::1...
Connected to localhost.
Escape character is '^]'.
^CConnection closed by foreign host.
[root@elk bin]#
Which means the port is open.
However when I read the filebeat's log, I see:
2017-02-15T17:35:32+01:00 INFO Home path: [/usr/share/filebeat] Config path: [/etc/filebeat] Data path: [/var/lib/filebeat] Logs path: [/var/log/filebeat]
2017-02-15T17:35:32+01:00 INFO Setup Beat: filebeat; Version: 5.2.1
2017-02-15T17:35:32+01:00 INFO Loading template enabled. Reading template file: /etc/filebeat/filebeat.template.json
2017-02-15T17:35:32+01:00 INFO Loading template enabled for Elasticsearch 2.x. Reading template file: /etc/filebeat/filebeat.template-es2x.json
2017-02-15T17:35:32+01:00 INFO Elasticsearch url: http://localhost:5043
2017-02-15T17:35:32+01:00 INFO Activated elasticsearch as output plugin.
2017-02-15T17:35:32+01:00 INFO Publisher name: elk.corp.ncr
2017-02-15T17:35:32+01:00 INFO Flush Interval set to: 1s
2017-02-15T17:35:32+01:00 INFO Max Bulk Size set to: 50
2017-02-15T17:35:32+01:00 INFO filebeat start running.
2017-02-15T17:35:32+01:00 INFO No registry file found under: /var/lib/filebeat/registry. Creating a new registry file.
2017-02-15T17:35:32+01:00 INFO Loading registrar data from /var/lib/filebeat/registry
2017-02-15T17:35:32+01:00 INFO States Loaded from registrar: 0
2017-02-15T17:35:32+01:00 INFO Loading Prospectors: 1
2017-02-15T17:35:32+01:00 INFO Starting Registrar
2017-02-15T17:35:32+01:00 INFO Start sending events to output
2017-02-15T17:35:32+01:00 INFO Prospector with previous states loaded: 0
2017-02-15T17:35:32+01:00 INFO Loading Prospectors completed. Number of prospectors: 1
2017-02-15T17:35:32+01:00 INFO All prospectors are initialised and running with 0 states to persist
2017-02-15T17:35:32+01:00 INFO Starting spooler: spool_size: 2048; idle_timeout: 5s
2017-02-15T17:35:32+01:00 INFO Starting prospector of type: log
2017-02-15T17:35:32+01:00 INFO Harvester started for file: /tmp/logstash-tutorial.log
2017-02-15T17:35:32+01:00 INFO Harvester started for file: /tmp/yum.log
2017-02-15T17:35:38+01:00 ERR Connecting error publishing events (retrying): Get http://localhost:5043: read tcp [::1]:40240->[::1]:5043: read: connection reset by peer
And the message 2017-02-15T17:35:41+01:00 ERR Connecting error publishing events (retrying): Get http://localhost:5043: read tcp 127.0.0.1:39214->127.0.0.1:5043: read: connection reset by peer is repeated ad-nauseam.
I am missing a elephant in the room? Why is the connection "reset by peer"?
pipeline.conf
input {
beats {
port => "5043"
}
}
# The filter part of this file is commented out to indicate that it is
# optional.
# filter {
#
# }
output {
stdout { codec => rubydebug }
}
filebeat.yml
###################### Filebeat Configuration Example #########################
# This file is an example configuration file highlighting only the most common
# options. The filebeat.full.yml file from the same directory contains all the
# supported options with more comments. You can use it as a reference.
#
# You can find the full configuration reference here:
# https://www.elastic.co/guide/en/beats/filebeat/index.html
#=========================== Filebeat prospectors =============================
filebeat.prospectors:
# Each - is a prospector. Most options can be set at the prospector level, so
# you can use different prospectors for various configurations.
# Below are the prospector specific configurations.
- input_type: log
# Paths that should be crawled and fetched. Glob based paths.
paths:
- /tmp/*.log
#- c:\programdata\elasticsearch\logs\*
# Exclude lines. A list of regular expressions to match. It drops the lines that are
# matching any regular expression from the list.
#exclude_lines: ["^DBG"]
# Include lines. A list of regular expressions to match. It exports the lines that are
# matching any regular expression from the list.
#include_lines: ["^ERR", "^WARN"]
# Exclude files. A list of regular expressions to match. Filebeat drops the files that
# are matching any regular expression from the list. By default, no files are dropped.
#exclude_files: [".gz$"]
# Optional additional fields. These field can be freely picked
# to add additional information to the crawled log files for filtering
#fields:
# level: debug
# review: 1
### Multiline options
# Mutiline can be used for log messages spanning multiple lines. This is common
# for Java Stack Traces or C-Line Continuation
# The regexp Pattern that has to be matched. The example pattern matches all lines starting with [
#multiline.pattern: ^\[
# Defines if the pattern set under pattern should be negated or not. Default is false.
#multiline.negate: false
# Match can be set to "after" or "before". It is used to define if lines should be append to a pattern
# that was (not) matched before or after or as long as a pattern is not matched based on negate.
# Note: After is the equivalent to previous and before is the equivalent to to next in Logstash
#multiline.match: after
#================================ General =====================================
# The name of the shipper that publishes the network data. It can be used to group
# all the transactions sent by a single shipper in the web interface.
#name:
# The tags of the shipper are included in their own field with each
# transaction published.
#tags: ["service-X", "web-tier"]
# Optional fields that you can specify to add additional information to the
# output.
#fields:
# env: staging
#================================ Outputs =====================================
# Configure what outputs to use when sending the data collected by the beat.
# Multiple outputs may be used.
#-------------------------- Elasticsearch output ------------------------------
output.elasticsearch:
# Array of hosts to connect to.
#hosts: ["localhost:9200"]
# Optional protocol and basic auth credentials.
#protocol: "https"
#username: "elastic"
#password: "changeme"
#----------------------------- Logstash output --------------------------------
#output.logstash:
# The Logstash hosts
hosts: ["localhost:5043"]
# Optional SSL. By default is off.
# List of root certificates for HTTPS server verifications
#ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]
# Certificate for SSL client authentication
#ssl.certificate: "/etc/pki/client/cert.pem"
# Client Certificate Key
#ssl.key: "/etc/pki/client/cert.key"
#================================ Logging =====================================
# Sets log level. The default log level is info.
# Available log levels are: critical, error, warning, info, debug
#logging.level: debug
# At debug level, you can selectively enable logging only for some components.
# To enable all selectors use ["*"]. Examples of other selectors are "beat",
# "publish", "service".
#logging.selectors: ["*"]
Answer
I found out:
#-------------------------- Elasticsearch output ------------------------------
output.elasticsearch:
...
...
#----------------------------- Logstash output --------------------------------
#output.logstash:
...
...
Where I should have:
#-------------------------- Elasticsearch output ------------------------------
#output.elasticsearch:
...
...
#----------------------------- Logstash output --------------------------------
output.logstash:
...
...