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This article mainly shows you "how to use glusterfs hidden parameters", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "how to use glusterfs hidden parameters" this article.

GlusterFS Hidden parameters official description page (obsolete):

Http://www.gluster.org/documentation/Documenting_the_undocumented/

Special entry option option to "!" Exclamation points start, they are not suitable for all scenes, if you do not know what you are doing, please do not change.

To see all hidden parameters, you can look at the source code.

The hidden parameters are in the struct volopt_map_entry glusterd_volopt_map [] of the corresponding source code file:

Source file: xlators/mgmt/glusterd/src/glusterd-volume-set.c

.key: operation keyword

.value: default

.description: description and description of the corresponding entry

The structure struct volume_options is responsible for initializing the default values, which can be searched in the code.

The volum_options fruit body can be found in the corresponding source directory.

For example, performance-related parameter values can be found in the following directory:

Xlators/performance

The default value of io-cache is 32MB, which can be found in the following files:

Io-cache/src/io-cache.c

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