---
name: "cmap_overview"
section: "3"
platform: "linux"
package: "libcmap-dev"
version: "3.1.9-2+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/cmap_overview/3"
---

# cmap\_overview(3)

Overview of the Configuration Map

## NAME

cmap\_overview - Overview of the Configuration Map

## OVERVIEW

The CMAP library is used to interact with the configuration & statistics databases used by corosync.

The library provides a mechanism to:

\* Create of new keys

\* Change existing keys

\* Remove keys

\* Iterate keys with given prefix

\* Track changes on keys

Description of most keys created by corosync itself can be found in cmap\_keys (7).

## BUGS

## SEE ALSO

[**cmap\_initialize**(3)](/cmap_initialize/3.md), [**cmap\_initialize\_map**(3)](/cmap_initialize_map/3.md), [**cmap\_finalize**(3)](/cmap_finalize/3.md), [**cmap\_get**(3)](/cmap_get/3.md), [**cmap\_set**(3)](/cmap_set/3.md), [**cmap\_delete**(3)](/cmap_delete/3.md), [**cmap\_inc**(3)](/cmap_inc/3.md), [**cmap\_dec**(3)](/cmap_dec/3.md), [**cmap\_fd\_get**(3)](/cmap_fd_get/3.md), [**cmap\_dispatch**(3)](/cmap_dispatch/3.md), [**cmap\_context\_set**(3)](/cmap_context_set/3.md), [**cmap\_context\_get**(3)](/cmap_context_get/3.md), [**cmap\_iter\_init**(3)](/cmap_iter_init/3.md), [**cmap\_iter\_next**(3)](/cmap_iter_next/3.md), [**cmap\_iter\_finalize**(3)](/cmap_iter_finalize/3.md), [**cmap\_track\_add**(3)](/cmap_track_add/3.md), [**cmap\_track\_delete**(3)](/cmap_track_delete/3.md), [**cmap\_keys**(7)](/cmap_keys/7.md)