Page 1 of 2 12 LastLast
Results 1 to 25 of 29
  1. #1
    Join Date
    May 2004
    Location
    Atlanta, GA
    Posts
    3,872

    any experience about CentOS 7.0?

    as of July-21, CentOS 7.0 is out! anyone can share user experience about it?

    release notes:
    http://wiki.centos.org/Manuals/ReleaseNotes/CentOS7

    DVD ISO (x86_64):
    http://isoredirect.centos.org/centos...x86_64-DVD.iso
    C.W. LEE, Apaq Digital Systems
    http://www.apaqdigital.com
    sales@apaqdigital.com

  2. #2
    Join Date
    May 2006
    Location
    NJ, USA
    Posts
    6,645
    Several of my boxes still run CentOS 5.. lol
    AS395558

  3. #3
    Join Date
    Jul 2014
    Posts
    53
    Tempted to give it a try on a spare box, I look forward to any feedback from anyone who's tried it out too.

    I imagine we'll see closer likeness to RHEL also.
    Last edited by FearData; 07-24-2014 at 06:07 PM.

  4. #4
    Join Date
    Mar 2014
    Location
    United States
    Posts
    206
    I had it running on my laptop for a week or two. Even managed to install Steam and Civ V It ran great, till the HDD decided to die, and I've just not had the chance to replace the HDD yet.

    Other than that, I have one VPS container (OpenVZ) running CentOS 7 but I've not really done anything with it.

  5. #5
    Join Date
    Nov 2005
    Posts
    3,944
    I've had it installed on a devbox for a little over a week now. It is apparently a stable version of Fedora 19.


    • Systemd instead of service
    • Firewalld instead of iptables
    • Xfs instead of ext4
    • No ifconfig by default (can be installed, but they want you to use ip by default)
    • ethX naming convention is gone, my devices are named enp6s0f0 and enp6s0f1
    • grub2 instead of grub
    • no MAKEDEV support

    I'm not sure how I feel about these changes yet. These are just what I've noticed from fooling around with it for a week and a few other minor things. The ethernet device names are "supposed" to be better, but ethX was just simple. Grub2 is a bit different as you no longer edit the config directly, but I've used Ubuntu/Debian so I've already seen that before.


    The changes from 6 to 7 seem to be a lot more than 5 to 6.


    The major advantages from what I can see with 7 is:

    • In place upgrades from 6.5 to 7.0. I haven't tried this yet but this is a great addition if it is well supported rather than having to reinstall the system.
    • Kernel 3.10. Obviously loads of improvements made since 2.6.32.


  6. #6
    Join Date
    Aug 2006
    Location
    Ashburn VA, San Diego CA
    Posts
    4,615
    Quite a few hurdles to overcome on this release with stuff like Cpanel / Plesk / DA / CSF / R1soft and all the add-on goodies we're so used to on 5/6. R1soft doesn't even support XFS from what I remember. In-place upgrades for anything but the most stock setups is going to be a huge mess. I'm actually quite surprised they made such drastic changes. Going to be interesting however it pans out.
    Fast Serv Networks, LLC | AS29889 | DDOS Protected | Managed Cloud, Streaming, Dedicated Servers, Colo by-the-U
    Since 2003 - Ashburn VA + San Diego CA Datacenters

  7. #7
    Join Date
    May 2008
    Location
    Citrus Heights, CA
    Posts
    1,887
    Eh I wanted to setup a dev cPanel box running it, but the installer errors out saying it's not supported. That was the extent of my testing...
    iWebFusion.Net - Shared / Reseller / VPS / Bare Metal / Colocation / IP Transit / Networking
    *Simply Hosting - Wholly owned networks, in-house staff, legions of fans!

  8. #8
    Join Date
    Mar 2010
    Location
    Germany
    Posts
    697
    Quote Originally Posted by cwl@apaqdigital View Post
    as of July-21, CentOS 7.0 is out! anyone can share user experience about it?

    release notes:
    http://wiki.centos.org/Manuals/ReleaseNotes/CentOS7

    DVD ISO (x86_64):
    http://isoredirect.centos.org/centos...x86_64-DVD.iso
    One detail i heard of is that it now actually issues a warning that running a 1-core 64bit system is unsupported.
    Didn't try yet, I simply didn't have the time

  9. #9
    Join Date
    Nov 2005
    Posts
    3,944
    Quote Originally Posted by wartungsfenster View Post
    One detail i heard of is that it now actually issues a warning that running a 1-core 64bit system is unsupported.
    Didn't try yet, I simply didn't have the time
    Interesting. I haven't heard of anyone having issues in a VPS yet. I think you'd be hard pressed to find someone installing CentOS 7 on a single core dedicated server, if you can even find one anymore.


  10. #10
    Join Date
    Aug 2006
    Location
    Ashburn VA, San Diego CA
    Posts
    4,615
    Does it have these issues with a typical multi-CPU Xen VPS which are (by default) presented as multiple single-core sockets?
    Fast Serv Networks, LLC | AS29889 | DDOS Protected | Managed Cloud, Streaming, Dedicated Servers, Colo by-the-U
    Since 2003 - Ashburn VA + San Diego CA Datacenters

  11. #11
    Join Date
    Jun 2006
    Location
    Calgary, Alberta
    Posts
    688
    Quote Originally Posted by FastServ View Post
    Quite a few hurdles to overcome on this release with stuff like Cpanel / Plesk / DA / CSF / R1soft and all the add-on goodies we're so used to on 5/6. R1soft doesn't even support XFS from what I remember. In-place upgrades for anything but the most stock setups is going to be a huge mess. I'm actually quite surprised they made such drastic changes. Going to be interesting however it pans out.
    \

    Maybe if enough people show interest on this page cPanel will start working on supporting RHEL7 / CentOS 7;
    http://features.cpanel.net/responses...ntos-7-support

  12. #12
    Join Date
    Dec 2001
    Location
    Toronto, Ontario, Canada
    Posts
    6,896
    Quote Originally Posted by benj114 View Post
    \

    Maybe if enough people show interest on this page cPanel will start working on supporting RHEL7 / CentOS 7;
    http://features.cpanel.net/responses...ntos-7-support
    That doesn't mean much, do they even have ipv6 support yet? :p
    Myles Loosley-Millman - admin@prioritycolo.com
    Priority Colo Inc. - Affordable Colocation & Dedicated Servers.
    Two Canadian facilities serving Toronto & Markham, Ontario
    http://www.prioritycolo.com

  13. #13
    Join Date
    Mar 2005
    Location
    Ten1/0/2
    Posts
    2,529
    Got as far as installing it on a KVM VPS and that is about all...

    Seems OK, but as noted there are a fair few significant changes from 6 to 7.

    One thing I do want to test is to bring up a 6.5 VM and then do an in-place upgrade to 7 to see how it works or if it is more trouble than it's worth.

    Of course, need to evaluate the Linux containers and see if it is/will replace OpenVZ as a container-based virtualization, or just move over to KVM for VM's.

    Yep, jsut when they seemed to sort out most of the issues with 6.x, along comes the next major release.
    CPanel Shared and Reseller Hosting, OpenVZ VPS Hosting. West Coast (LA) Servers and Nodes
    Running Linux since 1.0.8 Kernel!
    Providing Internet Services since 1995 and Hosting Since 2004

  14. #14
    Join Date
    Aug 2007
    Location
    Lincoln, UK
    Posts
    489
    Quote Originally Posted by porcupine View Post
    That doesn't mean much, do they even have ipv6 support yet? :p
    Yes, since 11.40
    Ethical, carbon neutral hosting and servers from Freethought
    Freethought Internet Limited registered in London No. 5862996. Registered office: Unit 5, Oak House, Witham Park, Waterside South, Lincoln, LN5 7FB. VAT number GB 345 5122 18.

  15. #15
    Join Date
    Aug 2007
    Location
    Lincoln, UK
    Posts
    489
    Quote Originally Posted by FastServ View Post
    Does it have these issues with a typical multi-CPU Xen VPS which are (by default) presented as multiple single-core sockets?
    No, that limitation is only when running on bare metal, see https://access.redhat.com/solutions/544423
    Ethical, carbon neutral hosting and servers from Freethought
    Freethought Internet Limited registered in London No. 5862996. Registered office: Unit 5, Oak House, Witham Park, Waterside South, Lincoln, LN5 7FB. VAT number GB 345 5122 18.

  16. #16
    Join Date
    Apr 2000
    Location
    Brisbane, Australia
    Posts
    2,602
    Been testing CentOS 7.0 mainly on virtualised platforms from VirtualBox and RamNode CKVM VPS (via CentOS 7.0 netinstaller) to work on Centmin Mod LEMP compatibility - got Centmin Mod .08 beta working fine with CentOS 7.0

    It's been an interesting experience with a lot of reading to do especially for stuff I am never used before (grub2, systemd vs sysvinit, firewalld on top (not replace) iptables and polkitd & tuned daemon etc).

    not sure if tuned is needed ?

    tuned(8) Adaptive system tuning daemon tuned(8)

    NAME
    tuned - dynamic adaptive system tuning daemon

    SYNOPSIS
    tuned [options]

    DESCRIPTION
    tuned is a dynamic adaptive system tuning daemon that tunes system settings dynamically depending on usage.
    On my virtualbox install as well as my KVM CentOS 7 netinstall VPS the active tuned profile is virtual-guest

    Code:
    tuned-adm active
    Current active profile: virtual-guest
    Code:
    tuned-adm list
    Available profiles:
    - balanced
    - desktop
    - latency-performance
    - network-latency
    - network-throughput
    - powersave
    - sap
    - throughput-performance
    - virtual-guest
    - virtual-host
    Current active profile: virtual-guest
    virtual-guest
    This is pre-selected on virtual machines. The goal is best performance. If you are not interested in best performance, you would probably like to change it to the balanced or powersave profile (see bellow).

    virtual-guest
    A profile designed for virtual guests based on the enterprise-storage profile that, among other tasks, decreases virtual memory swappiness and increases disk readahead values. It does not disable disk barriers.
    for Virtualbox and KVM VPS they use a combination of 2 tuned profiles for virtual-guest and throughput-performance

    Code:
    cat /usr/lib/tuned/virtual-guest/tuned.conf
    
    #
    # tuned configuration
    #
    
    [main]
    include=throughput-performance
    
    [sysctl]
    # If a workload mostly uses anonymous memory and it hits this limit, the entire
    # working set is buffered for I/O, and any more write buffering would require
    # swapping, so it's time to throttle writes until I/O can catch up.  Workloads
    # that mostly use file mappings may be able to use even higher values.
    #
    # The generator of dirty data starts writeback at this percentage (system default
    # is 20%)
    vm.dirty_ratio = 30
    
    # Filesystem I/O is usually much more efficient than swapping, so try to keep
    # swapping low.  It's usually safe to go even lower than this on systems with
    # server-grade storage.
    vm.swappiness = 30
    Code:
    cat /usr/lib/tuned/throughput-performance/tuned.conf
    
    #
    # tuned configuration
    #
    
    [cpu]
    governor=performance
    energy_perf_bias=performance
    min_perf_pct=100
    
    [vm]
    transparent_hugepages=always
    
    [disk]
    readahead=4096
    
    [sysctl]
    # ktune sysctl settings for rhel6 servers, maximizing i/o throughput
    #
    # Minimal preemption granularity for CPU-bound tasks:
    # (default: 1 msec#  (1 + ilog(ncpus)), units: nanoseconds)
    kernel.sched_min_granularity_ns = 10000000
    
    # SCHED_OTHER wake-up granularity.
    # (default: 1 msec#  (1 + ilog(ncpus)), units: nanoseconds)
    #
    # This option delays the preemption effects of decoupled workloads
    # and reduces their over-scheduling. Synchronous workloads will still
    # have immediate wakeup/sleep latencies.
    kernel.sched_wakeup_granularity_ns = 15000000
    
    # If a workload mostly uses anonymous memory and it hits this limit, the entire
    # working set is buffered for I/O, and any more write buffering would require
    # swapping, so it's time to throttle writes until I/O can catch up.  Workloads
    # that mostly use file mappings may be able to use even higher values.
    #
    # The generator of dirty data starts writeback at this percentage (system default
    # is 20%)
    vm.dirty_ratio = 40
    
    # Start background writeback (via writeback threads) at this percentage (system
    # default is 10%)
    vm.dirty_background_ratio = 10
    
    # PID allocation wrap value.  When the kernel's next PID value
    # reaches this value, it wraps back to a minimum PID value.
    # PIDs of value pid_max or larger are not allocated.
    #
    # A suggested value for pid_max is 1024 * <# of cpu cores/threads in system>
    # e.g., a box with 32 cpus, the default of 32768 is reasonable, for 64 cpus,
    # 65536, for 4096 cpus, 4194304 (which is the upper limit possible).
    #kernel.pid_max = 65536
    
    # The swappiness parameter controls the tendency of the kernel to move
    # processes out of physical memory and onto the swap disk.
    # 0 tells the kernel to avoid swapping processes out of physical memory
    # for as long as possible
    # 100 tells the kernel to aggressively swap processes out of physical memory
    # and move them to swap cache
    vm.swappiness=10
    There's more stuff just don't feel like copy and pasting everything
    : CentminMod.com Nginx Installer Nginx 1.25, PHP-FPM, MariaDB 10 CentOS (AlmaLinux/Rocky testing)
    : Centmin Mod Latest Beta Nginx HTTP/2 HTTPS & HTTP/3 QUIC HTTPS supports TLS 1.3 via OpenSSL 1.1.1/3.0/3.1 or BoringSSL or QuicTLS OpenSSL
    : Nginx & PHP-FPM Benchmarks: Centmin Mod vs EasyEngine vs Webinoly vs VestaCP vs OneInStack

  17. #17
    Join Date
    Aug 2000
    Location
    Sheffield, South Yorks
    Posts
    3,627
    Installed it on a box, uninstalled it when it wouldn't work with the QLogic CNAs we use. Drivers wouldn't build for it so put ubuntu on instead.
    Karl Austin :: KDAWS.com
    The Agency Hosting Specialist :: 0800 5429 764
    Partner with us and free-up more time for income generating tasks

  18. #18
    Join Date
    Dec 2001
    Location
    Toronto, Ontario, Canada
    Posts
    6,896
    Quote Originally Posted by Ed-Freethought View Post
    Yes, since 11.40
    Does it actually work properly though? That's always the defining moment
    Myles Loosley-Millman - admin@prioritycolo.com
    Priority Colo Inc. - Affordable Colocation & Dedicated Servers.
    Two Canadian facilities serving Toronto & Markham, Ontario
    http://www.prioritycolo.com

  19. #19
    Join Date
    Aug 2007
    Location
    Lincoln, UK
    Posts
    489
    Quote Originally Posted by porcupine View Post
    Does it actually work properly though? That's always the defining moment
    Would you also like the moon on a stick?
    Ethical, carbon neutral hosting and servers from Freethought
    Freethought Internet Limited registered in London No. 5862996. Registered office: Unit 5, Oak House, Witham Park, Waterside South, Lincoln, LN5 7FB. VAT number GB 345 5122 18.

  20. #20
    Join Date
    Dec 2001
    Location
    Toronto, Ontario, Canada
    Posts
    6,896
    Quote Originally Posted by Ed-Freethought View Post
    Would you also like the moon on a stick?
    Naw, they already put a flag on it, somebody's already got their stick in it .
    Myles Loosley-Millman - admin@prioritycolo.com
    Priority Colo Inc. - Affordable Colocation & Dedicated Servers.
    Two Canadian facilities serving Toronto & Markham, Ontario
    http://www.prioritycolo.com

  21. #21
    Join Date
    May 2013
    Location
    USA
    Posts
    931
    Quote Originally Posted by Mark Muyskens View Post
    Eh I wanted to setup a dev cPanel box running it, but the installer errors out saying it's not supported. That was the extent of my testing...
    Yeah, it'll be quite a while before they support CentOS 7.
    ▄▀▄ Brian Harrison, Lead Engineer - Reprise Hosting (AS62838)
    ▄▀▄ Deals on cheap dedicated server hosting. IPMI included! Unmetered bandwidth.
    ▄▀▄ Website migration, 24/7/365 support, basic server setup, 15 day money back.
    ▄▀▄ Looking for DEALS on self-managed cheap VPS hosting? Visit VPSHostingDEAL.com

  22. #22
    Join Date
    Jun 2002
    Location
    Waco, TX
    Posts
    5,623
    It is a little like moving from linux to minix or something, lots of commands different. The ethernet naming is really weird and if you run configuration manually in system-config/network-scripts it does not seem to the the scripts that apply network config on boot if you are using NetworkManager service.

  23. #23
    Join Date
    Mar 2009
    Posts
    568
    Quote Originally Posted by Ed-Freethought View Post
    Would you also like the moon on a stick?
    Dreamers...

    --Chris
    The Object Zone - Your Windows Server Specialists for more than twenty years - http://www.object-zone.net/
    Services: Contract Server Management, Desktop Support Services, IT/VoIP Consulting, Cloud Migration, and Custom ASP.net and Mobile Application Development

  24. #24
    Join Date
    Aug 2006
    Location
    Ashburn VA, San Diego CA
    Posts
    4,615
    Quote Originally Posted by benj114 View Post
    \

    Maybe if enough people show interest on this page cPanel will start working on supporting RHEL7 / CentOS 7;
    http://features.cpanel.net/responses...ntos-7-support
    I'd prefer they instead work towards supporting Ubuntu. With huge changes between RHEL releases now, they might as well just do what they needed to do for a long time. They historically stuck with CentOS because changes between releases have always been light...until now.
    Fast Serv Networks, LLC | AS29889 | DDOS Protected | Managed Cloud, Streaming, Dedicated Servers, Colo by-the-U
    Since 2003 - Ashburn VA + San Diego CA Datacenters

  25. #25
    Join Date
    Aug 2007
    Location
    Lincoln, UK
    Posts
    489
    Quote Originally Posted by FastServ View Post
    I'd prefer they instead work towards supporting Ubuntu. With huge changes between RHEL releases now, they might as well just do what they needed to do for a long time. They historically stuck with CentOS because changes between releases have always been light...until now.
    With cPanel slowly shifting to use RPMs, they're unlikely to ditch RHEL/CentOS and move to a distribution with a completely different package manager.

    Ubuntu are planning to bring in some of the big changes like systemd in futures releases.
    Ethical, carbon neutral hosting and servers from Freethought
    Freethought Internet Limited registered in London No. 5862996. Registered office: Unit 5, Oak House, Witham Park, Waterside South, Lincoln, LN5 7FB. VAT number GB 345 5122 18.

Page 1 of 2 12 LastLast

Similar Threads

  1. Howto: Install Xen 4 on CentOS 5 and CentOS 6!
    By uksysadmin in forum VPS Tutorials
    Replies: 37
    Last Post: 07-30-2015, 12:47 AM
  2. CentOS+Virtualmin+ Nginx experience administrator needed
    By kavhost in forum Systems Management Requests
    Replies: 12
    Last Post: 12-01-2013, 06:28 AM
  3. Moving OpenVZ containers from CentOS 5 to CentOS 6
    By Razva in forum Hosting Security and Technology
    Replies: 9
    Last Post: 08-16-2012, 01:23 PM
  4. Looking for high experience CentOS 6 + Virutalmin + Ngnix managment
    By kavhost in forum Systems Management Requests
    Replies: 4
    Last Post: 04-10-2012, 07:44 AM
  5. Upgrade from RH7.3 to CentOS experience??
    By The3bl in forum Hosting Security and Technology
    Replies: 0
    Last Post: 12-27-2004, 02:35 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •