Tag Archives: multline

Sample filebeat.yml file for Prospectors,Multiline and Logging Configuration


You can copy same file in filebeat.yml  and run  after making below change as per your environment directory structure and follow steps mentioned for Filebeat Download,Installation and Start/Run

  • Change on Prospectors section for your logs file directory and file name
  • Configure Multiline pattern as per your logs format as of now set as generic hopefully will work with all pattern
  • Change on Kafka output section for Host ,Port and topic name as required
  • Change on logging directory as per you machine directory.

Sample filebeat.yml file

#=============Filebeat prospectors ===============

filebeat.prospectors:

# Here we can define multiple prospectors and shipping method and rules  as per
#requirement and if need to read logs from multiple file from same patter directory #location can use regular pattern also.

#Filebeat support only two types of input_type log and stdin

# #############input type logs configuration#####################

- input_type: log

# Paths of the files from where logs will read and use regular expression if need to read #from multiple files
paths:
- /opt/app/app1/logs/app1-debug*.log*
# make this fields_under_root as true if you want filebeat json out for read files in root.
fields_under_root: true

### Multiline configuration for handeling stacktrace, Object, XML etc if that is the case #and multiline is enabled with below configuration will shipped output for these case in #multiline

# The regexp Pattern that has to be matched. The example pattern matches all lines #starting with [DEBUG,ALERT,TRACE,WARNING log level that can be customize #according to your logs line format
multiline.pattern: '^\[([Aa]lert|ALERT|[Tt]race|TRACE|[Dd]ebug|DEBUG|[Nn]otice|NOTICE|[Ii]nfo|INFO|[Ww]arn?(?:ing)?|WARN?(?:ING)?|[Ee]rr?(?:or)?|ERR?(?:OR)?|[Cc]rit?(?:ical)?|CRIT?(?:ICAL)?|[Ff]atal|FATAL|[Ss]evere|SEVERE|EMERG(?:ENCY)?|[Ee]merg(?:ency)?)'

# Default is false.Defines if the pattern match  should be negated or not.
multiline.negate: true

# multiline.match define if pattern not match with above pattern where these line need #to append.Possible values  are "after" or "before".

multiline.match: after

# if you will set this max line after these number of multiline all will ignore
#multiline.max_lines: 50

#==========Kafka output Configuration ============================
output.kafka:
# Below enable flag is for enable or disable output module will discuss more on filebeat #module section
#enabled: true

# Here mentioned all your Kafka broker host and port to fetch cluster metadata which #contains published events for kafka brokers.

hosts: ["kafkahost:port"]

# We can define topic for Kafka broker where events will published.
topic: QC-LOGS

# Default no key setting. But we can use formatted key settings.
#key: ''

#Default partition strategy is 'hash' using key values set. If not set key value will #randomly distribute publish events.

#partition.hash:

# Default value  is false. If reach_only enabled event will publish only reachable kafka #brokers.
#reachable_only: false

# Configure alternative event field names used to compute the hash value.
# If empty `output.kafka.key` setting will be used.
# Default value is empty list.
#hash: []

# If authentication set on Kafka broker end below fileds are required.
#username: ''
#password: ''

#Kafka Broker version to configure so that filebeat can check compatibility with that.
#version: 0.8.2

#Meta data information is required for broker event publishing so that filbeat can take  #decision based on status of brokers.

#metadata:

#Defaults value for max 3 retries selection of available brokers.
#retry.max: 3

# Default value is 250ms. Will wait for specified time before make next retries.
#retry.backoff: 250ms

# Will update meta data information  in every 10 minutes.
#refresh_frequency: 10m

# It shows no of worker will run for each configure kafka broker.
#worker: 1

#Default value is 3. If set less than 0 filebeat will retry continuously as logs as events not #publish.
#max_retries: 3

# The Default value is 2048.It shows max number of batch events will publish to Kafka in #one request.
#bulk_max_size: 2048

#The default value is 30 second. It will timeout if not hear any response from Kafka #broker with in specified time.
#timeout: 30s
# Default is value is 10 seconds. During this max duration broker will wait for #number #of required acknowledgement.
#broker_timeout: 10s

# Default value is 256 for buffered message for Kafka broker.
#channel_buffer_size: 256

# Default value is 0 seconds  as keep alive is disabled and if this value set will keep alive #active network connection for that time.
#keep_alive: 0

# Default value for compression is gzip. We can also set other compression codec like #snappy, gzip or none.
compression: gzip

#Default value is 1000000 bytes . If Json value is more than configured max message #bytes event will dropped.
max_message_bytes: 1000000

#Default Value is 1 for ACK for reliability. Possible values can be :

#0=no response , Message can be lost on some error happens

#1=wait for local commit

#-1=wait for all replicas to commit.
#required_acks: 1

# Waiting Interval between new events and previous events for read logs.
#flush_interval: 1s

# The configurable ClientID used for logging, debugging, and auditing
# purposes. The default is "beats".

#Default value is beat. We can set values for this field that will help for analysis and #auditing purpose.
#client_id: beats

# Configure SSL setting id required for Kafk broker
#ssl.enabled: true

# Optional SSL configuration options. SSL is off by default.
# List of root certificates for HTTPS server verifications

#SSK configuration is Optional and OFF by default . It required for server verification if #HTTPS root certificate .
#ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

#Default value is full. SSL configuration verfication mode is required if SSL is configured #We can use value as 'none' for testing purpose but in this mode it can accept any #certificate.
#ssl.verification_mode: full

# List of supported/valid TLS versions. By default all TLS versions 1.0 up to
# 1.2 are enabled.

#By Default  it support all TLS versions after 1.0 to 1.2. We can also mentioned version in #below array
#ssl.supported_protocols: [TLSv1.0, TLSv1.1, TLSv1.2]

# Define path for certificate for SSL
#ssl.certificate: "/etc/pki/client/cert.pem"

# Define path for Client Certificate Key
#ssl.key: "/etc/pki/client/cert.key"

# If data is configured and shipped encrypted form. Need to add passphrase for #decrypting the Certificate Key otherwise optional
#ssl.key_passphrase: ''

# Configure encryption cipher suites to be used for SSL connections
#ssl.cipher_suites: []

# Configure encryption curve types for ECDHE based cipher suites
#ssl.curve_types: []
#====================Logging ==============================

# Default log level is info if set above or below will record top this hierarchy #automatically. Available log levels are: critical, error, warning, info, debug

logging.level: debug
# Possible values for selectors are "beat", "publish" and  "service" if you want to enable #for all select value as "*". This selector decide on command line when  start filebeat.
logging.selectors: ["*"]

# The default value is false.If make it true will send out put to syslog.
logging.to_syslog: false
# The default is true. all non-zero metrics  reading are output on shutdown.
logging.metrics.enabled: true

# Period of matrics for log reading counts from log files and it will send complete report #when shutdown filebeat
logging.metrics.period: 30s
# Set this flag as true to enable logging in files if not set that will disable.
logging.to_files: true
logging.files:
# Path of directory where logs file will write if not set default directory will home #directory.
path: /tmp

# Name of files where logs will write
name: filebeat-app.log
# Log File will rotate if reach max size and will create new file. Default value is 10MB
rotateeverybytes: 10485760 # = 10MB

# This will keep recent maximum log files in directory for rotation and remove oldest #files.
keepfiles: 7
# Will enable logging for that level only. Available log levels are: critical, error, warning, #info, debug
level: debug

Integration

Complete Integration Example Filebeat, Kafka, Logstash, Elasticsearch and Kibana

Read More

To read more on Filebeat topics, sample configuration files and integration with other systems with example follow link Filebeat Tutorial  and  Filebeat Issues.To Know more about YAML follow link YAML Tutorials.

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Filebeat Multiline Configuration Changes for Object, StackTrace and XML


Multiline configuration is required if need to handle multilines on filebeat server end. That will help for logs type like stackTrace for exception, print objects, XML, JSON etc. where standard log4j format does’t work  so this type of lines can be combined with previous line where log4j format was applied.

Below are filebeat configuration for multiline.

multiline.pattern: The regexp Pattern that has to be matched. The example pattern matches all lines starting with [DEBUG,ALERT,TRACE,WARNING log level that can be customize according to your logs line format. But that is generic one that will help most of cases.
multiline.pattern: ‘^[([Aa]lert|ALERT|[Tt]race|TRACE|[Dd]ebug|DEBUG|[Nn]otice|NOTICE|[Ii]nfo|INFO|[Ww]arn?(?:ing)?|WARN?(?:ING)?|[Ee]rr?(?:or)?|ERR?(?:OR)?|[Cc]rit?(?:ical)?|CRIT?(?:ICAL)?|[Ff]atal|FATAL|[Ss]evere|SEVERE|EMERG(?:ENCY)?|[Ee]merg(?:ency)?)’

Default is false for negate. Defines if the pattern match should be negated or not.
multiline.negate: true

multiline.match define if pattern not match with above pattern where these line need to append. Possible values are “after” or “before”.

multiline.match: after

If you will set this max line after these number of multiline all will ignore
multiline.max_lines: 50

For Example :

multiline.pattern: ‘^\[([Aa]lert|ALERT|[Tt]race|TRACE|[Dd]ebug|DEBUG|[Nn]otice|NOTICE|[Ii]nfo|INFO|[Ww]arn?(?:ing)?|WARN?(?:ING)?|[Ee]rr?(?:or)?|ERR?(?:OR)?|[Cc]rit?(?:ical)?|CRIT?(?:ICAL)?|[Ff]atal|FATAL|[Ss]evere|SEVERE|EMERG(?:ENCY)?|[Ee]merg(?:ency)?)’

multiline.negate: true
multiline.match: after
#multiline.max_lines: 50

Sample Configuration file for multiline configuration.

Sample filebeat.yml file for Prospectors,Multiline and Logging Configuration

Integration

Complete Integration Example Filebeat, Kafka, Logstash, Elasticsearch and Kibana

Read More

To read more on Filebeat topics, sample configuration files and integration with other systems with example follow link Filebeat Tutorial  and  Filebeat Issues. To know more about YAML follow link as YAML Tutorial.

Leave you feedback to enhance more on this topic so that make it more helpful for others.

Filebeat Prospectors Configuration Changes for Read Log files


Filebeat Prospectors Configuration

Filebeat can read logs from multiple files parallel and apply different condition, pass additional fields for different files, multiline and include_line, exclude_lines etc. based on different log files.

Filebeat allows multiline prospectors on same filebeat.yml file.

How to decide number of prospectors in configuration file?

We can decide number of prospectors after categorizing same type logs file based on their format format and operation need to perform based on business need. I have find out some steps to divide in prospectors.

  • Read only: First decide what are files/files from need to read by filebeat. If that’s need to read and shipped output to some other system then only one prospectors is enough. If require any below case then require more prospectors for each category.
  • Multiline : If require multiline handling on filebeat end then divide selected files from above step to different category based on same file log format and where same multiline pattern  can  apply. Go to link for more information about Filebeat Configuration Changes for Multiline Logs Handling
  • Fields Handling: If need to pass some additional fields over shipping data from filebeat to Output System. If field detail are same for prospectors then no more prospectors required if different then again sub categories according to required field detail and define more prospectors.

How to define Prospectors?

Filebeat allow two type of prospector’s input_type log and stdin. Prospector setting start from filebeat.prospectors and each prospector implement with input_type. Here in below example will consider as input type of log.

Multiline Prospectors Example:

filebeat.prospectors:


#Prospectors 1 : Only reading logs line
input_type: log
paths:
- /var/app1/backend/debug-log.log
- /var/app1/frontend/debug-log.log
- /var/app1/backend/server.log
- /var/app1/frontend/server.log

#Prospector 2 : reading and sending some additional field
input_type: log
paths:
-/var/app2/log/*-debug.log
fields:
apache: true

#Prospectors 3 : reading, multiline and sending some additional fields
input_type: log
paths:
-/var/app2/log/*-debug.log

multiline.pattern: '^\['
multiline.negate: true
multiline.match: after
#multiline.max_lines: 50

fields:
tz: EST

fields_under_root: true

Above example having three prospectors as given below

Prospector 1: reading logs files and shipped to output system.
Prospector 2: reading logs files and also sending additional fields like apache.
Prospectors 3: reading logs, multiline and also sending additional field for timezone.

Integration

Complete Integration Example Filebeat, Kafka, Logstash, Elasticsearch and Kibana

Read More

To read more on Filebeat topics, sample configuration files and integration with other systems with example follow link Filebeat Tutorial  and  Filebeat Issues. To know more about YAML follow link as YAML Tutorial

Leave you feedback to enhance more on this topic so that make it more helpful for others.