Shulou(Shulou.com)06/01 Report--

This article mainly introduces what are the main features of GlusterFS 3.6. in daily operation, I believe many people have doubts about the main features of GlusterFS 3.6. the editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the questions about "what are the main features of GlusterFS 3.6"! Next, please follow the editor to study!

Main changes and characteristics

The main changes and features described in this document can also be found in the glusterfs warehouse, which corresponds to doc/features/.

Volume snapshot

Volume snapshots provide a point-in-time copy of the volume, and snapshots can be operated online, so the normal use of client users is not affected in the process of making snapshots.

For more information, see here.

Snapshots can be accessed by ordinary users

Users can use snapshots to provide ordinary users with the ability to access snapshots of GlusterFS volumes without administrator intervention.

For more information, see here.

Erasure code

The new erasure correction function repeater provides cross-node erasure correction function and provides erasure correction volume.

For more information, see here.

Management operation provides granular lock support

A new volume lock has been added to the glusterd process to support the simultaneous operation of multiple different volumes.

Enhanced logging capabilities (changelog xlator)

Log API is introduced to consume log records persisted by changelog repeaters. With this API, there is no need for expensive file system traversal operations to determine changes.

Offsite backup takes advantage of this feature ([re] start), so you can optimize cleanup, hard links, and so on in remote replication.

Better support for different size plates (brick)

Before 3.6, plates of different sizes were treated equally, and files were evenly distributed. Starting from 3.6, the file distribution began to consider the plate size.

Improved SSL support

GlusterFS 3.6improves SSL support for administrative and data connections. This feature is currently being used by GlusterFS native drivers in openstack Manila.

Meta repeater

Meta repeaters provide a virtual interface to view the internal status of all repeaters.

Improved synchronous replication support (AFRv2)

The replication repeater (AFR) is rewritten (http://review.gluster.org/#/c/6010/) in 3.6and is called AFRv2.

From the user's point of view, the file replication behavior has not changed, but from an administrative point of view, there are some things to note:

Lookup operations no longer trigger metadata and data self-healing operations. They only trigger entry-self-heals.

Data and metadata are only repaired by the repair daemon.

In the replication volume configuration, the plates no longer mark the pre-change log extension attributes for themselves before and after the operation, but only mark them as other sections in the replication volume configuration.

For example, in a volume with two replicas, the extended attribute trusted.afr.-client-0 of brick-0 and the extended property trusted.afr.-client-1 of brick-1, whose value is always 0x000000000000000000000000.

On a section, if the log change operation is not completed successfully, a trusted.afr.dirty extension property is set to the corresponding section.

Fence repeater

The fence repeater allows file operations to temporarily "paused" on the plate, which is used to achieve consistent snapshots of GlusterFS.

For more information, see here.

Delete plates by default and migrate data at the same time

Prior to 3.6, performing a volume remove-brick operation to remove the version did not migrate any data. Now, by default, executing this command migrates data. If you do not want to migrate data when you delete brick, you can use volume remove-brick force.

Experiment × ×

In the current version of release, the following features are experimental.

Support for rdma volum

Support for NUFA (non-uniform file access) repeaters

Disk encryption

On-Ware encryption and decryption: use this feature to reduce network traffic

Transplant status quo

NetBSD and FreeBSD platform support is experimental, but from the results of regression testing, it is basically fully supported. If you use it, be sure to use the latest version of the system.

OSX support is in the alpha stage, and more testing will make it more mature.

At this point, the study on "what are the main features of GlusterFS 3.6" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.