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Questions tagged [distributed-filesystems]

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Docker Swarm Distributed File System with local storage

I'm looking for a distributed file system solution/network file system which can be used in the following scenario: I have a Docker Swarm with many hosts, but each host is essentially self-contained ...
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Replicating filesystem Samba and Windows

I'm looking for a way to create a replicating filesystem between Samba and Windows. I thought that DFSR would be the answer but Samba doesn't support SYSVOL replication. I also looked at syncthing ...
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What's the simplest way of "resetting" multiple linux clients to restore the default state of a fresh install?

We have 6 linux clients (mint) which are used for training. Courses might run anywhere from a few days to multiple weeks. They want a "one button press", as in very quick and easy, way of ...
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2 votes
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Lustre glitch: latency of minutes

Using a HPC lustre filesystem, we occasionally experience glitchiness where even simply opening a terminal and typing "ls" can take minutes to return. That is, any process that involves the ...
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storing and orchestrating geographically distributed files

Could somebody explain how corporations like facebook and instagram (or literary anyone who stores the user data) technically handle storage of EU citizen data in Europe? I am building a website that ...
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1 answer
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What file systems are dominantly used in data centers? [closed]

I would like to know what file systems are typically used in data centers and how do their performance compare to ext3/4 file system?
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How to strictly serialize replication of one folder using Windows DFS replication?

I have two locations A+B and need to process one special directory between those branches using Windows DFS replication in the following way: All writes into that directory of A need to be pulled by B....
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1 vote
3 answers
116 views

Can I use RAM as Cache for a secondary storage device

I have 10TB~ RAID 5 array and two NVME 500GB on RAID 0 and they in different systems. what I want is to make a stick of RAM like 16GB or something to act as a cache or buffer to give me faster access ...
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1 vote
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Heavy network usage withg GlusterFS FUSE client

I have a simple GlusterFS 7.2 setup with 3 servers: data1 and data2 contribute several bricks (4 each) to a distributed replicated GlusterFS volume. host1 uses the GlusterFS FUSE client to mount the ...
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Any Open Source Linux Distributed Storage Options Which be Deployed inside Rented KVM VPSes Without Additional Virtual Disks?

I am trying to figure out a scalable and HA solution for storing live data under production workloads like DBs, web contents, etc.. Which can be installed and setup on standard rented Linux KVM VPSes. ...
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GlusterFS - Define Failover Cluster

I am currently planning the storage infrastructure for our new application. Since performance is a big and important item on our list, I want to use SSDs for the production environment. We sell a ...
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1 answer
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Ridiculous Number of Files in a Directory

My employer acquired a company with one particular piece of software that stores a lot of PDF and PNG file files in one directory. When I first replicated it from AWS, there were about 11.5 million ...
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Change HDFS replication factor

I've changed replication factor from 3 to 2 for some directories with command: hdfs dfs -setrep -R 2 /path/to/dir but my HDFS free space still the same. Should I do something else to free my disks?
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1 vote
1 answer
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Can kubernetes cluster nodes be geologically spread out?

Me and a couple of friends are thinking of setting up a kubernetes cluster where our homeservers will act as the nodes. As our nodes will be spread out between our apartments I am worried this will ...
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1 vote
1 answer
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AWS EFS - file delete and recreate not detected programmatically for 25 to 30 seconds

I am observing a very large delay in EFS detecting that a file has been re-created i.e. deleted and then created again. In this simple test example, I have a single file that gets deleted and ...
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1 vote
1 answer
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Multiple disks acting as one filesystem, while still allowing each disk to be accessed alone

I have a fairly large dataset (~160TB) that need to be delivered to a client every so often. This dataset consists of fairly large files, usually between 2Gb and 20Gb each. They exist on a BeeGFS ...
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5 votes
3 answers
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What differences are between a NAS, a shared disk file system on a SAN, and a distributed filesystem?

https://en.wikipedia.org/wiki/Clustered_file_system#Network-attached_storage says Network-attached storage (NAS) provides both storage and a file system, like a shared disk file system on top of a ...
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1 vote
2 answers
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Does a distributed filesystem have to consist of multiple filesystems located on different computers?

Does the concept of a distributed filesystem require a distributed filesystem to consist of multiple filesystems located on different computers? Does an NFS filesystem consist of only one filesystem? ...
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1 vote
2 answers
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Do distributed file systems partition a file across nodes?

In HDFS, a file is partitioned into blocks which are distributed across several nodes. I am wondering if that is also true in the following distributed file systems: NFS, Andrew File systems (and ...
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How can I create or access a remote file as if it were local?

In general, I would like to run local programs on remote files provided to me via a distributed file system (e.g. samba, NFS or whichever you recommend), and I want to access the remote files in a ...
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5 votes
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How does S3FS (or any other S3 FUSE filsystem) compare to AWS FSx for Lustre + S3

I remember trying s3fs a year back, trying to use some S3 bucket as a FUSE filesystem. I remember it being quite laggy, especially when coupled with git operations on it (an oblivious system architect ...
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1 vote
2 answers
573 views

K3S arm64 distributed files systems

I deployed a K3S Cluster on arm64 and I need to have a DFS directly on-premise, It will be better to have it running on the kubernetes stack. Regarding DFS choices there are some options, but...: ...
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Will DFRS support a lot of data over a WAN?

I have a server in our home location that houses many of our engineers. This location has Comcast fiber 100 up and down. Internally, the network here is much faster than that. This location has Server ...
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glusterfs client mount point fails with 'Client quorum is not met'

Assume a basic replica 3 arbiter 1 configuration, glusterfs-server 4.0.2 and glusterfs-client 4.0.2. glusterfs-client is installed on Ubuntu 18.04. In order to verify that write / read ops are ...
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3 votes
1 answer
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Does Perkeep (camlistore) have built in protection from bitrot?

Does Perkeep (PKA Camlistore) offer protection from silent corruption (eg. bitrot) of the data in its current design like what is offered in ZFS. If it does, how well does it fare when compared to ZFS?...
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1 vote
2 answers
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DFS Namespace unavailable at login

Edit: I was not fully aware of what was going on with my issue, but it has since been fixed. See my answer below. Background We are having some issues with DFS namespaces in our environment after a ...
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2 votes
1 answer
188 views

Which distributed filesystem will actually fit my needs?

Hear me out I have seen the question asked (in different forms) here, here, and perhaps the best one I found was here, but I do not think this is a duplicate because quite some time has past since ...
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Is it practical to keep home directories on OpenAFS?

I am a sysadmin by trade, and I do what I do at work at home as well for fun. I have a Gentoo Linux laptop, Raspberry Pis running Raspian, a Gentoo server, ARM devices running Debian and have various ...
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2 answers
659 views

Networked In-Memory FileSystem w/ zram + XFS + GlusterFS - Best Practices

A few months ago I used XFS formatted zram devices strung together with GlusterFS to create a distributed / networked / replicated in-memory filesystem on a few bare metal servers (running RHEL 7.2). ...
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1 vote
2 answers
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Asynchronous file replication over long distances, with buffering

I'm looking for a filesystem that can replicate over long distances, and tolerate being offline for extended periods of time by using a local buffer, which should be a disk buffer, to queue up changes ...
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2 votes
1 answer
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How to make GlusterFS mount point highly available?

It's true that one can mount a GlusterFS volume on any brick and the FUSE client will automatically discover the other bricks and connect to them as well. If the initial brick fails the client will ...
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GlusterFS server logic

I quite don't understand about GlusterFS probes. See, i add all servers to /etc/hosts file and i do this for each server. Lets say i have 100 servers and later i added 100 more. I cannot imagine ...
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5 votes
1 answer
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GlusterFS Transport endpoint not connected from time to time

I'm using GlusterFS 3.7.9, currently on a single server with 4 bricks. Each brick has 4TB and the volume is set up as distribute only. The volume is mounted on a secondary server and I use it for ...
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4 votes
2 answers
778 views

GlusterFS alternative for file upload website

I have a few file upload websites, with files ranging from hundreds of kilobytes to a few gigabytes. Currently I have all files in a distribute-replicate Gluster volume on a few servers. My ...
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2 votes
1 answer
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Glusterd dead but cluster still running

We are currently running a three node cluster, on Gluster 3.6.4. On one of our nodes we noticed that the glusterd daemon is dead. But the glusterfsd daemons are still running, and we believe clients ...
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Is it possible to configure hdfs in a federation mode and in an HA mode in the same time?

I don't understand if it possible to configure HDFS in both modes in the same time. Does it make sense? Can somebody show a simple configuration of HDFS in both modes? (nameNode1, nameNode2, ...
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1 vote
1 answer
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How to safely store data and DBs on Kubernetes (or similar) on DigitalOcean

It boils down to setting up a private cloud on something like Digital Oceans versus another hosting solution like GCE or AWS. The latter have redundant data stores that can be safely used as volumes, ...
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1 answer
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New files on Linux Samba share: Now you don't see me, now you do

When a file is uploaded to our server, we have to do some work on it to allow or reject it. Some files need to be opened in a Windows box (OpenXml Sdk performance reasons). Our web server runs in a ...
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2 votes
1 answer
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distributed storage solutions [closed]

I've got some desktop PCs available in my company since the last user hardware renewal and I would like to re-use them for a demo plaform. They are powerfull enought to emulate a few servers. I ...
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1 vote
0 answers
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Glusterd won't start after node crash

We had a 2 node cluster running GlusterFS. It's a 4 volume cluster, replica 2, one brick per server. Dead server: nnfs02 Live server with all data: nnfs03 New server: nnfs01 After nnfs02 died, we ...
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6 votes
2 answers
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What is reasonable storage failover time that most OS (VM) can tolerate?

I have a GlusterFS 2 node 2 replica setup. I am planning to use it as OpenStack instance store, in which the VM disk image is stored. From my tests, if the GlusterFS node which the hypervisor ...
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3 votes
1 answer
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Distributed mirrored filesystem under FreeBSD

Can someone share their experience in building a distributed mirrored filesystem between multiple FreeBSD machines? I. e. we have two (three, four...) servers and special partition "part1" mounted on ...
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0 votes
1 answer
350 views

Expanding/Growing OCFS2 forever

I have a kvm environment where a shared disk mounted by 2 VMs through rbd ceph. What I would like to know that in the future how is it possible to expand OCFS2 filesystem what I planning to use on top ...
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Storing Large Amount of files in a file system?

Guys I am creating an application which will be saving a .txt file (approx 10 KB/file I guess) in a file system and will be saving its path in MS SQL database. Now as per my estimation, approximately ...
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2 votes
3 answers
3k views

LizardFS/MooseFS -- Multiple Storage Volumes

I'm using the new LizardFS and it's awesome! I'm new to LizardFS/MooseFS overall, but it seems pretty straight-forward. I was wondering two things: First, is there a way to setup separate storage ...
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5 votes
2 answers
2k views

Is there a way to connect a remote folder with local cache on OSX or Windows workstation?

A company with 50 graphic designers are working on the same file server. They are using mainly Indesign. A typical project is a 60 pages indesign document with 1.5GB of linked files (something like ...
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5 votes
1 answer
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Why is GlusterFS so slow here?

We've set up a mirroring pair of GlusterFS servers. No special tuning, whatever came "out of the box" with GlusterFS-3.5.1 in the official RHEL6 RPM, that's what we have. The cluster works, but the ...
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6 votes
0 answers
171 views

Fast distributed filesystem for a large amounts of data with metadata in database [closed]

My project uses several processing machines and one storage machine. Currently storage organized with a MSSQL filetable shared folder. Every file in storage have some metadata in database. Processing ...
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1 vote
2 answers
273 views

Setting up a multi-host SAN

I'm looking for some advice on setting-up multi-host I/O access on our SAN: I have a blade enclosure (PowerEdge1000e) containing an Equallogic PS-M4110 storage blade with a single RAID6 volume ...
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1 vote
2 answers
460 views

Simple, decentralized, automatically synced, local cached file share for linux server

I wonder if someone could recommend me some solution to sharing files between a small amount of linux VPS (virtual private servers). Basically I have a bunch of linux VPS to manage, and I want to ...
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