# flowControl

Fine-tunes RELP input flow control behavior between no, light, or full throttling.

This parameter applies to imrelp: RELP Input Module.

Name:

  flowControl

Scope:

  input

Type:

  string

Default:

  input=light

Required?:

  no

Introduced:

  8.1911.0

## Description

This parameter permits the fine-tuning of the flowControl parameter. Possible values are “no”, “light”, and “full”. With “light” being the default and previously only value.

Changing the flow control setting may be useful for some rare applications, this is an advanced setting and should only be changed if you know what you are doing. Most importantly, rsyslog block incoming data and become unresponsive if you change flowcontrol to “full”. While this may be a desired effect when intentionally trying to make it most unlikely that rsyslog needs to lose/discard messages, usually this is not what you want.

General rule of thumb: if you do not fully understand what this description here talks about, leave the parameter at default value.

This part of the documentation is intentionally brief, as one needs to have deep understanding of rsyslog to evaluate usage of this parameter. If someone has the insight, the meaning of this parameter is crystal-clear. If not, that someone will most likely make the wrong decision when changing this parameter away from the default value.

## Input usage

    input(type="imrelp" port="2514" flowControl="light")

## See also

See also imrelp: RELP Input Module.

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