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OpenLDAP Input Plugin

This plugin gathers metrics from OpenLDAP's cn=Monitor backend.

Global configuration options

In addition to the plugin-specific configuration settings, plugins support additional global and plugin configuration settings. These settings are used to modify metrics, tags, and field or create aliases and configure ordering, etc. See the CONFIGURATION.md for more details.

Configuration

# OpenLDAP cn=Monitor plugin
[[inputs.openldap]]
  host = "localhost"
  port = 389

  # ldaps, starttls, or no encryption. default is an empty string, disabling all encryption.
  # note that port will likely need to be changed to 636 for ldaps
  # valid options: "" | "starttls" | "ldaps"
  tls = ""

  # skip peer certificate verification. Default is false.
  insecure_skip_verify = false

  # Path to PEM-encoded Root certificate to use to verify server certificate
  tls_ca = "/etc/ssl/certs.pem"

  # dn/password to bind with. If bind_dn is empty, an anonymous bind is performed.
  bind_dn = ""
  bind_password = ""

  # reverse metric names so they sort more naturally
  # Defaults to false if unset, but is set to true when generating a new config
  reverse_metric_names = true

To use this plugin you must enable the slapd monitoring backend.

Metrics

All monitorCounter, monitoredInfo, monitorOpInitiated, and monitorOpCompleted attributes are gathered based on this LDAP query:

(|(objectClass=monitorCounterObject)(objectClass=monitorOperation)(objectClass=monitoredObject))

Metric names are based on their entry DN with the cn=Monitor base removed. If reverse_metric_names is not set, metrics are based on their DN. If reverse_metric_names is set to true, the names are reversed. This is recommended as it allows the names to sort more naturally.

Metrics for the monitorOp* attributes have _initiated and _completed added to the base name as appropriate.

An OpenLDAP 2.4 server will provide these metrics:

  • openldap
    • connections_current
    • connections_max_file_descriptors
    • connections_total
    • operations_abandon_completed
    • operations_abandon_initiated
    • operations_add_completed
    • operations_add_initiated
    • operations_bind_completed
    • operations_bind_initiated
    • operations_compare_completed
    • operations_compare_initiated
    • operations_delete_completed
    • operations_delete_initiated
    • operations_extended_completed
    • operations_extended_initiated
    • operations_modify_completed
    • operations_modify_initiated
    • operations_modrdn_completed
    • operations_modrdn_initiated
    • operations_search_completed
    • operations_search_initiated
    • operations_unbind_completed
    • operations_unbind_initiated
    • statistics_bytes
    • statistics_entries
    • statistics_pdu
    • statistics_referrals
    • threads_active
    • threads_backload
    • threads_max
    • threads_max_pending
    • threads_open
    • threads_pending
    • threads_starting
    • time_uptime
    • waiters_read
    • waiters_write

Tags

  • server= # value from config
  • port= # value from config

Example Output

openldap,server=localhost,port=389,host=niska.ait.psu.edu operations_bind_initiated=10i,operations_unbind_initiated=6i,operations_modrdn_completed=0i,operations_delete_initiated=0i,operations_add_completed=2i,operations_delete_completed=0i,operations_abandon_completed=0i,statistics_entries=1516i,threads_open=2i,threads_active=1i,waiters_read=1i,operations_modify_completed=0i,operations_extended_initiated=4i,threads_pending=0i,operations_search_initiated=36i,operations_compare_initiated=0i,connections_max_file_descriptors=4096i,operations_modify_initiated=0i,operations_modrdn_initiated=0i,threads_max=16i,time_uptime=6017i,connections_total=1037i,connections_current=1i,operations_add_initiated=2i,statistics_bytes=162071i,operations_unbind_completed=6i,operations_abandon_initiated=0i,statistics_pdu=1566i,threads_max_pending=0i,threads_backload=1i,waiters_write=0i,operations_bind_completed=10i,operations_search_completed=35i,operations_compare_completed=0i,operations_extended_completed=4i,statistics_referrals=0i,threads_starting=0i 1516912070000000000