---
sourceDocument: Australia IT Operations Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/de-DE/it-operations-management

 Release :

    - australia

ft:locale :

    - de-DE

ft:publication_title :

    - Australia IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# HAProxy using probes

# HAProxy load balancer discovery using probes {#ariaid-title1}

* Freigeben Version: Australia
* 
* Aktualisiert 12. März 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 Minuten Lesedauer

Discovery of HAProxy Community edition load balancers is performed by SSH.  
Hinweis:  
Starting with Discovery and Service Mapping Patterns 1.15.0 version, pattern-based discovery is the default method for discovering HAProxy load balancers.

* For information about enabling probe-based discovery, see [Enable HAProxy load balancer discovery with probes](https://servicenow-prod.fluidtopics.net/1VzIfqC8to5CRFk9196Kyg "If you prefer not to start using the default HAProxy pattern-based discovery, enable probe-based HAProxy discovery to continue using it instead.").
* For information about the HA Proxy pattern, see [HAProxy load balancer discovery with patterns](https://servicenow-prod.fluidtopics.net/_2ulcbKN8li0pU8mL10ZkQ "The Discovery and Service Mapping Patterns application uses the HA Proxy pattern to find HAProxy Community load balancers running on a Linux server. Discovering some of these resources may require updating to the latest version of the Discovery and Service Mapping Patterns application from the ServiceNow Store.").
* For information about Probe to Pattern migration see the knowledge article [KB0694477](https://support.servicenow.com/kb_view.do?sysparm_article=KB0694477).
{#c_LoadBalancerHAProxy__ul_bjv_g1v_tcc}

HAProxy is an open-source load balancer that can manage any TCP service. It is particularly suited for HTTP load balancing because it supports session persistence and Layer 7 processing. Discovery supports HAProxy for HTTP load balancing. TCP load-balancing is not supported.  
Consider the following requirements for discovering the HAProxy:

* The HAProxy software is installed and running on a Linux server.
* The MID Server is deployed to explore the server and the MID Server has access to the server HAProxy configuration file.
* The configuration probe checks for the haproxy.cfg file using one of the following methods:
  * Using the f parameter for the HAProxy process output.
  * Using the default /etc/haproxy/haproxy.cfg path.
  {#c_LoadBalancerHAProxy__ul_q5c_mkf_ct}
* The HAProxy probes require credentials and execute privileges to run commands.
{#c_LoadBalancerHAProxy__ul_p5c_mkf_ct}

Discovery uses the Unix - Active Processes probe to identify an HAProxy load balancer when the name of the process is haproxy. If this criterion matches, a record is created in the HAProxy Load Balancers \[cmdb_ci_lb_haproxy\] table if one does not already
exist for that running process.  
The following probes are triggered after classification:{#c_LoadBalancerHAProxy__table_afp_wg1_ct__entry__3}

| Probe | Description | Commands |
|-|-|-|
| HAProxy -- Version | The sensor of this probe populates the HAProxy version in the HAProxy Load Balancers \[cmdb_ci_lb_haproxy\] table. | haproxy |
| HAProxy -- Get Configuration | The sensor of this probe populates additional information in the HAProxy Load Balancers \[cmdb_ci_lb_haproxy\] table. The probe also populates information in the Load Balancer Service \[cmdb_ci_lb_service\], Load Balancer Pool \[cmdb_ci_lb_pool\], Load Balancer Pool Member \[cmdb_ci_lb_pool_member\], Load Balancer Interface \[cmdb_ci_lb_interface\], and Load Balancer Application \[cmdb_ci_lb_appl\] tables. | echo, sed, cut, grep, egrep (within the Borne shell script) |
[Tabelle : 1. HAProxy probes]

{#c_LoadBalancerHAProxy__table_afp_wg1_ct}

In addition to populating the data, the following relationships records are created in CI
Relationships \[cmdb_rel_ci\] table:

* The records in the cmdb_ci_lb_appl table run on the cmdb_ci_web_server table records.
* The records in the cmdb_ci_lb_service table use the cmdb_ci_lb_pool table records.
* The records in the cmdb_ci_pool table are used by the cmdb_ci_service table records.
* The records in the cmdb_ci_pool table are members of the cmdb_ci_pool_member table records.
* The records in the cmdb_ci_pool_member table are members of the cmdb_ci_pool table records.
{#c_LoadBalancerHAProxy__ul_atx_2bh_ct}