- Heartbeat Reference: other versions:
- Heartbeat overview
- Quick start: installation and configuration
- Set up and run
- Configure
- Monitors
- Task scheduler
- General settings
- Project paths
- Output
- Kerberos
- SSL
- Index lifecycle management (ILM)
- Elasticsearch index template
- Processors
- Define processors
- add_cloud_metadata
- add_cloudfoundry_metadata
- add_docker_metadata
- add_fields
- add_host_metadata
- add_id
- add_kubernetes_metadata
- add_labels
- add_locale
- add_network_direction
- add_nomad_metadata
- add_observer_metadata
- add_process_metadata
- add_tags
- append
- community_id
- convert
- copy_fields
- decode_base64_field
- decode_duration
- decode_json_fields
- decode_xml
- decode_xml_wineventlog
- decompress_gzip_field
- detect_mime_type
- dissect
- dns
- drop_event
- drop_fields
- extract_array
- fingerprint
- include_fields
- move_fields
- rate_limit
- registered_domain
- rename
- replace
- script
- syslog
- translate_ldap_attribute
- translate_sid
- truncate_fields
- urldecode
- Autodiscover
- Internal queue
- Logging
- HTTP endpoint
- Regular expression support
- Instrumentation
- Feature flags
- heartbeat.reference.yml
- How to guides
- Exported fields
- Beat fields
- Synthetics browser metrics fields
- Cloud provider metadata fields
- Common heartbeat monitor fields
- Docker fields
- ECS fields
- Host fields
- HTTP monitor fields
- ICMP fields
- Jolokia Discovery autodiscover provider fields
- Kubernetes fields
- Process fields
- Host lookup fields
- APM Service fields
- SOCKS5 proxy fields
- Monitor state fields
- Monitor summary fields
- Synthetics types fields
- TCP layer fields
- TLS encryption layer fields
- Monitor
- Secure
- Troubleshoot
- Get help
- Debug
- Understand logged metrics
- Common problems
- Heartbeat uses too much bandwidth
- Error loading config file
- Found unexpected or unknown characters
- Logstash connection doesn’t work
- Publishing to Logstash fails with "connection reset by peer" message
- @metadata is missing in Logstash
- Not sure whether to use Logstash or Beats
- SSL client fails to connect to Logstash
- Monitoring UI shows fewer Beats than expected
- High RSS memory usage due to MADV settings
- Contribute to Beats
Regular expression support
editRegular expression support
editHeartbeat regular expression support is based on RE2.
Before using a regular expression in the config file, refer to the documentation to verify that the option you are setting accepts a regular expression.
We recommend that you wrap regular expressions in single quotation marks to work around YAML’s string escaping rules. For example, '^\[?[0-9][0-9]:?[0-9][0-9]|^[[:graph:]]+'
.
For more examples of supported regexp patterns, see Managing Multiline Messages. Although the examples pertain to Filebeat, the regexp patterns are applicable to other use cases.
The following patterns are supported:
Pattern | Description |
---|---|
|
single character |
|
any character |
|
character class |
|
negated character class |
|
ASCII character class |
|
negated ASCII character class |
|
Perl character class |
|
negated Perl character class |
|
Unicode character class (one-letter name) |
|
Unicode character class |
|
negated Unicode character class (one-letter name) |
|
negated Unicode character class |
|
|
|
|
|
zero or more |
|
one or more |
|
zero or one |
|
|
|
|
|
exactly |
|
zero or more |
|
one or more |
|
zero or one |
|
|
|
|
|
exactly |
|
numbered capturing group (submatch) |
|
named & numbered capturing group (submatch) |
|
non-capturing group |
|
set flags within current group, non-capturing |
|
set flags during re, non-capturing |
|
case-insensitive (default false) |
|
multi-line mode: |
|
let |
|
ungreedy: swap meaning of |
|
at beginning of text or line ( |
|
at end of text (like |
|
at beginning of text |
|
at ASCII word boundary ( |
|
not at ASCII word boundary |
|
at end of text |
|
bell (same as |
|
form feed (same as |
|
horizontal tab (same as |
|
newline (same as |
|
carriage return (same as |
|
vertical tab character (same as |
|
literal |
|
octal character code (up to three digits) |
|
two-digit hex character code |
|
hex character code |
|
literal text |
|
alphanumeric (same as |
|
alphabetic (same as |
|
ASCII (same as |
|
blank (same as |
|
control (same as |
|
digits (same as |
|
graphical (same as |
|
lower case (same as |
|
printable (same as |
|
punctuation (same as |
|
whitespace (same as |
|
upper case (same as |
|
word characters (same as |
|
hex digit (same as |
|
digits (same as |
|
not digits (same as |
|
whitespace (same as |
|
not whitespace (same as |
|
word characters (same as |
|
not word characters (same as |