NFS-Ganesha 2.3 is rapidly winding down to release and it has a bunch of new things in it that make it fairly compelling. A lot of people are also starting to use Red Hat Gluster Storage with the NFS-Ganesha NFS server that is part of that package. Setting up a highly available NFS-Ganesha system using …Read more

We organized Docker Global Hack Day at Red Hat Office on 19th Sep’15. Though there were lots RSVPs, the turn up for the event was less than expected. We started the day by showing the recording of kick-off event. The … Continue reading →

The Gluster Community currently provides GlusterFS packages for the following distributions: 3.5 3.6 3.7 Fedora 21 ¹ × × Fedora 22 × ¹ × Fedora 23 × × ¹ Fedora 24 × × ¹ RHEL/CentOS 5 × × RHEL/CentOS 6 × × × RHEL/CentOS 7 × × × Ubuntu 12.04 LTS (precise) × × Ubuntu …Read more

The Gluster community is please to announce the release of GlusterFS-3.4.7. The GlusterFS 3.4.7 release is focused on bug fixes: 33608f5 cluster/dht: Changed log level to DEBUG 076143f protocol: Log ENODATA & ENOATTR at DEBUG in removexattr_cbk a0aa6fb build: argp-standalone, conditional build and build with gcc-5 35fdb73 api: versioned symbols in libgfapi.so for compatibility 8bc612d …Read more

The 4th beta for GlusterFS 3.4.7 is now available for testing. A handful of bugs have been fixed since the 3.4.6 release, check the references below for details. Bug reporters are encouraged to verify the fixes, and we invite others to test this beta to check for regressions. The ETA for 3.4.7 GA is tentatively …Read more

The 2nd beta for GlusterFS 3.4.7 is now available for testing. A handful of bugs have been fixed since the 3.4.6 release, check the references below for details. Bug reporters are encouraged to verify the fixes, and we invite others to test this beta to check for regressions. The ETA for 3.4.7 GA is not …Read more

The release source tar file and packages for Fedora {20,21,rawhide}, RHEL/CentOS {5,6,7}, Debian {wheezy,jessie}, Pidora2014, and Raspbian wheezy are available at http://download.gluster.org/pub/gluster/glusterfs/3.6/3.6.2/ (Ubuntu packages will be available soon.) This release fixes the following bugs. Thanks to all who submitted bugs and patches and reviewed the changes. 1184191 – Cluster/DHT : Fixed crash due to null …Read more

With the release of RHEL-6.6 and CentOS-6.6, there are now glusterfs packages in the standard channels/repositories. Unfortunately, these are only the client-side packages (like glusterfs-fuse and glusterfs-api). Users that want to run a Gluster Server…

A while ago I put together a post detailing the installation and configuration of 2 hosts running glusterfs, which was then presented as CIFS based storage. http://jonarcher.info/2014/06/windows-cifs-fileshares-using-glusterfs-ctdb-highly-available-data/ This post gained a bit of interest through the comments and social networks, one of the comments I got was from John Mark Walker suggesting I look at the …read more

The post Gluster, CIFS, ZFS – kind of part 2 appeared first on Jon Archer.

I decided to try the upgrade process from EL 6 to 7 on the servers I used in my previous blog post “Windows (CIFS) fileshares using GlusterFS and CTDB for Highly available data” Following the instructions here I found the process fairly painless. However there were 1 or two little niggles which caused various issues which …read more

The post Upgrade CentOS 6 to 7 with Upgrade Tools appeared first on Jon Archer.

When I’m enjoying the sun/wind/rain on the balcony, I tend to use my XO-1.75 for duties where most people would use a tablet. Reading/writing emails, browsing the internet, bug triaging or writing small fixes, release notes and all can be done fine on …

How to install GlusterFS with a replicated volume over 2 nodes on Ubuntu 14.04
In this tutorial I will explain GlusterFS configuration in Ubuntu 14.04. GlusterFS is an open source distributed file system which provides easy replication over multip…

This tutorial will walk through the setup and configuration of GlusterFS and CTDB to provide highly available file storage via CIFS. GlusterFS is used to replicate data between multiple servers. CTDB provides highly available CIFS/Samba functionality. Prerequisites: 2 servers (virtual or physical) with RHEL 6 or derivative (CentOS, Scientific Linux). When installing create a partition …read more

The post Windows (CIFS) fileshares using GlusterFS and CTDB for Highly available data appeared first on Jon Archer.

GlusterFS 3.5 has not been released yet, but that should happen hopefully anytime soon (currently in beta). The RPM-packaging in this version has changed a little, and now offers a glusterfs-cli package. This package mainly contains the gluster commandline interface (and pulls in any dependencies).

On of the very useful things that is now made possible, is to list the available volumes on Gluster Storge Servers. This similar functionality is used by the /etc/auto.net script to list NFS-exports that are available for mounting. The auto.net script is by default enabled after installing and starting autofs:

# yum install autofs
# systemctl enable autofs.service
# systemctl start autofs.service

Checking, and mounting NFS-exports is made as easy as:

$ ls /net/nfs-server.example.net
archive  media  mock_cache  olpc
$ ls /net/nfs-server.example.net/mock_cache/fedora-rawhide-armhfp/
yum_cache

Making this functionality available for Gluster Volumes is simple, just follow these steps:

1. install the gluster command

    # yum install glusterfs-cli

2. save the file below as /etc/auto.glfs

    #!/bin/bash
    # /etc/auto.glfs -- based on /etc/auto.net
    #
    # This file must be executable to work! chmod 755!
    #
    # Look at what a host is exporting to determine what we can mount.
    # This is very simple, but it appears to work surprisingly well
    #
   
    key="$1"
   
    # add "nosymlink" here if you want to suppress symlinking local filesystems
    # add "nonstrict" to make it OK for some filesystems to not mount
    opts="-fstype=glusterfs,nodev,nosuid"
   
    for P in /usr/local/bin /usr/local/sbin /usr/bin /usr/sbin /bin /sbin
    do
        if [ -x ${P}/gluster ]
        then
                GLUSTER_CLI=${P}/gluster
                break
        fi
    done
   
    [ -x ${GLUSTER_CLI} ] || exit 1
   
    ${GLUSTER_CLI} --remote-host="${key}" volume list | \
        awk -v key="$key" -v opts="$opts" -- '
        BEGIN   { ORS=""; first=1 }
                { if (first) { print opts; first=0 }; print " \\\n\t/" $1, key ":/" $1 }
        END     { if (!first) print "\n"; else exit 1 }' | \
        sed 's/#/\\#/g'

3. make the script executable

    # chmod 0755 /etc/auto.glfs

4. add an automount point to the autofs configuration

    # echo /glfs /etc/auto.glfs > /etc/auto.master.d/glfs.autofs

5. reload the autofs configuration

    # systemctl reload autofs.service

After this, autofs should have created a new /glfs directory. The directory itself is empty, but a ls /glfs/gluster.example.net will show all the available volumes on the gluster.example.net server. These volumes can now be accessed through the autofs mountpoint. When the volumes are not used anymore, autofs will automatically unmount them after a timeout.

This is an example of how to configure an environment where you can test CloudStack and Gluster. It uses two machines on the same LAN, one acts as a KVM hypervisor and the other as storage and management server. Because the (virtual) networking in the …

This is an example of how to configure an environment where you can test CloudStack and Gluster. It uses two machines on the same LAN, one acts as a KVM hypervisor and the other as storage and management server. Because the (virtual) networking in the …

As a part of GlusterFS 3.5 testing and hackathon, I decided to put GlusterFS inside a docker container.So I installed docker on my Fedora20 desktop and then started a Fedora container Once I am inside the container I installed GlusterFS … Continue reading →

Like a lot of folks, I caught the “4K is for Programmers” post off Hacker News a few days ago (it’s here, but the link seems to be borked at the moment) and got to thinking about more desktop space. Much more. My current setup, when not traveling, involves a 27″ 2560×1440 display – usually […]

Configuring Glace, Cinder and Nova for OpenStack Havana to run on GlusterFS is actually quite simple; assuming that you’ve already got GlusterFS up and running.

So lets first look at my Gluster configuration. As you can see below, I have a Gluster volume defined for Cinder, Glance and Nova.… Read the rest

The post Configuring OpenStack Havana Cinder, Nova and Glance to run on GlusterFS appeared first on vmware admins.

The OpenCompute systems are the the ideal hardware platform for distributed filesystems. Period. Why? Cheap servers with 10GB NIC’s and a boatload of locally attached cheap storage!

In preparation for deploying RedHat RDO on RHEL, the distributed filesystem I chose was GlusterFS.… Read the rest

The post Installing GlusterFS on RHEL 6.4 for OpenStack Havana (RDO) appeared first on vmware admins.