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

This article mainly introduces "what are the features of GlusterFS 3.5". In daily operation, I believe many people have doubts about the features of GlusterFS 3.5. the editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubts about "what are the features of GlusterFS 3.5?" Next, please follow the editor to study!

Major changes and characteristics of GlusterFS 3.5

AFR_CLI_enhancements

Improved logs, clearer, and provide more statistical information.

File_Snapshot

Provide a single file snapshot function, this feature can be better combined with Openstack Cinder, provide general file snapshot capabilities, such as VM p_w_picpaths.

Gfid-access

This feature provides a new repeater that can access data directly through gfid.

Prevent NFS restart on Volume change

Fixed volume changes (volume options, start, stop, delete, add brick, etc.) that caused the NFS service to be restarted.

Using this feature, you can provide better high availability features without affecting the normal access of NFS clients after volume changes.

Features/Quota_Scalability

Can greatly increase the number of quotas per volume, supporting a maximum of 65536!

Readdir_ahead

This feature supports directory pre-reading and can improve the performance of continuous directory reading.

Zerofill

Allows you to create pre-allocated files and empty files. Support fast zeroing of VM disk image files.

Brick_Failure_Detection

Detect file system failures so that brick blocks can handle errors outside the Gluster environment.

Changelog based distributed geo-replication

New remote backup function. Unlike previous offsite backups, all changes are monitored and recorded on a node of the target volume (which becomes the master node), and the master node on each volume participates in offsite replication.

Change detection

The current remote backup function determines whether a file needs to be copied by confirming that the changelog property of the file is set. At startup, changlog xlator runs on each brick.

Distribution essence

All nodes have the responsibility to synchronize data. In the case of replicated volumes, one is active and the other is passively synchronizing data.

Synchronization method

In addition to using the rsync synchronization method, the tar+ssh method is currently used, which can reduce the workload of copying a large number of small files.

Improved block device translator

This feature provides the ability to save VM image files and expose them as files to QEMU/KVM.

Remove brick CLI Change

Early remove-brick commands do not migrate data and are no longer recommended.

Experimental Features

Experimental characteristics

RDMA connection Management

NUFA Repeater support

Disk encryption

On-Wire compression and decompression

At this point, the study on "what are the features of GlusterFS 3.5" 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!

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