This walk-thru is targeting developers who want to explore the bleeding edge of Lustre. If you are evaluating Lustre for production, you should choose a Lustre Release.
Describe the steps you need to build and test a Lustre system (MGS, MDT, MDS, OSS, OST, client) from the HPDD
master branch on a x86_64, RHEL/CentOS 6.4 machine.
- A newly installed RHEL/CentOS 6.4 x86_64 machine connected to the internet.
- EPEL Repository: this is a convenient source for git.
NOTE the EPEL 5 repository is used because it includes
- NOTE It is suggested that you have at least 1GB of memory on the machine you are using for the build.
- NOTE Verify that selinux SElinux is disabled.
Lustre 2.1 servers currently require a patched and compiled kernel. A patched and compiled Lustre server kernel is available from IntelWhamcloud. A separate page is available to walk thru setting up Lustre with these pre-built RPMs. This document is for those who wish to build their Lustre system from source. Note that if you are not modifying the kernel patches on the server, it is possible to use the pre-built Lustre server kernel RPMs, and only build the Lustre code. Note that a patched kernel is NOT needed for the Lustre client.
Patches are available in the HPDD Git source repository. A test suite is included with the Lustre source. This document walks through the steps of patching the kernel, building Lustre and running a basic test of the complete system.
The procedure requires that a OS is setup for development - this includes Lustre sources, kernel source and build tools. Once setup, a new kernel can be patched, compiled, run and tested. Further reading on building a RHEL RPM based kernel is available from, among other sources, the CentOS site.
Provision machine and installing dependencies.
Once RHEL 6.3 is newly installed on
rhel6-master login as root.
Install the kernel development tools.
# yum -y groupinstall "Development Tools"
Info title Problem with installing 'Development Tools'
If the Development Tools group is not be available for some reason, you may find the following list if individual packages necessary to install.
# yum -y install automake xmlto asciidoc elfutils-libelf-devel zlib-devel binutils-devel newt-devel python-devel hmaccalc perl-ExtUtils-Embed rpm-build make gcc redhat-rpm-config patchutils git
Install additional dependencies
# yum -y install xmlto asciidoc elfutils-libelf-devel zlib-devel binutils-devel newt-devel python-devel hmaccalc perl-ExtUtils-Embed bison elfutils-devel audit-libs-devel
Install EPEL 5
. NOTE EPEL5 is used because it contains
# rpm -ivh http://download.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
# yum -y install quilt libselinux-devel
Note title newt-devel Code Block
yum --nogpgcheck localinstall ./newt-devel-0.52.11-3.el6.x86_64.rpm ./slang-devel-2.2.1-1.el6.x86_64.rpm ./asciidoc-8.4.5-4.1.el6.noarch.rpm
Preparing the Lustre source.
Create a user
buildwith the home directory
# useradd -m build
Switch to the user
buildand change to the build
# su build # cd $HOME
Get the MASTER branch from HPDD git.
# git clone git://git.hpddwhamcloud.intel.com/fs/lustre-release.git # cd lustre-release
Resolve any outstanding dependencies until
autogen.shcompletes successfully. Success will look like:
# sh ./autogen.sh Checking for a complete tree... checking for automake-1.9 >= 1.9... found 1.9.6 ... ... configure.ac:10: installing `./config.sub' configure.ac:12: installing `./install-sh' configure.ac:12: installing `./missing' Running autoconf
Prepare a patched kernel for Lustre
You can have different ways to prepare a patched kernel for Lustre. The easier method is to download built RPM packages from build.hpdd.intel.com. For example, if you're running el7, you should download the packages from here: https://build.hpdd.intel.com/view/Non-Reviews/job/lustre-master/arch=x86_64,build_type=server,distro=el7,ib_stack=inkernel/lastSuccessfulBuild/artifact/artifacts/RPMS/x86_64/ at the time when this page is writtenthe Releases page. You're going to need the packages starting with '
kernel-'. After new kernel packages are downloaded, you can skip the following few steps and go to the section 'Installing the Lustre kernel and rebooting'.
If you want a more challenge life, you can patch the kernel by yourself, in that case, please follow the steps below.
Prepare the kernel source
In this walk-thru, the kernel is built using
rpmbuild - a tool specific to RPM based distributions.
At this point, we now have kernel source, with all the RHEL/CentOS patches applied, residing in the directory
Patch the kernel source with the Lustre code.
Add a unique build id so we can be certain our kernel is booted. Edit
~/kernel/rpmbuild/BUILD/kernel-2.6.32-431.5.1.el6/linux-2.6.32-431.5.1.el6.x86_64/Makefileand modify line 4, the
EXTRAVERSION = .431.5.1.el6_lustre
enter Enter the directory
# cd ~/kernel/rpmbuild/BUILD/kernel-2.6.32-431.5.1.el6/linux-2.6.32-431.5.1.el6.x86_64/
overwrite Overwrite the
# cp ~/lustre-release/lustre/kernel_patches/kernel_configs/kernel-2.6.32-2.6-rhel6-x86_64.config ./.config
link Link the Lustre series and patches
# ln -s ~/lustre-release/lustre/kernel_patches/series/2.6-rhel6.series series # ln -s ~/lustre-release/lustre/kernel_patches/patches patches
Apply the patches to the kernel source using quilt
# quilt push -av ... ... patching file fs/jbd2/transaction.c Hunk #3 succeeded at 1222 (offset 3 lines). Hunk #4 succeeded at 1357 (offset 3 lines). Now at patch patches/jbd2-jcberr-2.6-rhel6.patch
Build the new kernel as an RPM.
Go into the kernel source directory and issue the following commands to build a kernel rpm.
# cd ~/kernel/rpmbuild/BUILD/kernel-2.6.32-431.5.1.el6/linux-2.6.32-431.5.1.el6.x86_64/ # make oldconfig || make menuconfig # make include/asm # make include/linux/version.h # make SUBDIRS=scripts # make include/linux/utsrelease.h # make rpm NOTE: with RHEL 7, # make oldconfig # make -j4 rpm
A successful build will return:
... ... Wrote: /home/build/kernel/rpmbuild/SRPMS/kernel-2.6.32lustremaster-1.src.rpm Wrote: /home/build/kernel/rpmbuild/RPMS/x86_64/kernel-2.6.32.lustremaster-1.x86_64.rpm Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.f73m1V + umask 022 + cd /home/build/kernel/rpmbuild/BUILD + cd kernel-2.6.32lustremaster + rm -rf /home/build/kernel/rpmbuild/BUILDROOT/kernel-2.6.32.lustremaster-1.x86_64 + exit 0 rm ../kernel-2.6.32lustremaster.tar.gz
If you receive a request to generate more entropy, you need to trigger some disk I/O or keyboard I/O. In another terminal, you can either type randomly or execute the following command to generate entropy:
At this point, you should have a fresh kernel RPM
Installing the Lustre kernel and rebooting.
As root, Install the kernel
# rpm -ivh $PKG_PATH/kernel-*.rpm
Depending on how you got your kernel packages, the PKG_PATH should be
~build/kernel/rpmbuild/RPMS/x86_64if you built the packages by yourself, or any other directory where you downloaded the packages from https://build.hpddwhamcloud.intel.com/.
Create initrd using
dracut(*This may not be required because
initrdshould have been created by installing new kernel*)
# /sbin/new-kernel-pkg --package kernel --mkinitrd --dracut --depmod --install 126.96.36.1991.5.1.el6_lustre
optional turn on
lustreservices, and specify net network type for
* chkconfig lustre on * vi /etc/modprobe.d/lustre.conf
If you don't know what should be written to this file, just leave it empty for now.
- Reboot the sys
tem with the rebootcommand.
view the login prompt with satisfaction, and make sure that new kernel is running:
Red Hat Enterprise Linux Server release 6.0 (Santiago) Kernel 2.6.32l-'I'm new kernel' on an x86_64 client-10 login:
Configure and build Lustre
Configure Lustre source
# cd ~/lustre-release/ # ./configure --with-linux=/lib/modules/kernel-2.6.32_lustremaster/build ... ... LLCPPFLAGS: -D__arch_lib__ -D_LARGEFILE64_SOURCE=1 CFLAGS: -g -O2 -Werror EXTRA_KCFLAGS: -include /home/build/lustre-release/config.h -g -I/home/build/lustre-release/libcfs/include -I/home/build/lustre-release/lnet/include -I/home/build/lustre-release/lustre/include LLCFLAGS: -g -Wall -fPIC -D_GNU_SOURCE Type 'make' to build Lustre.
make Make rpms:
# make rpms ... ... Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.TsLWpD + umask 022 + cd /home/build/kernel/rpmbuild/BUILD + cd lustre-2.0.61 + rm -rf /home/build/kernel/rpmbuild/BUILDROOT/lustre-2.0.61-2.6.32_lustremaster_g0533e7b.x86_64 + exit 0 make: Leaving directory `/home/build/lustre-release'
You should now have build the following, similarly named, rpmsRPMs:
# ls *.rpm kernel-2.6.32lustremaster-1.x86_64.rpm lustre-2.0.61-2.6.32.lustremaster_g0533e7b.x86_64.rpm lustre-debuginfo-2.0.61-2.6.32.lustremaster_g0533e7b.x86_64.rpm lustre-ldiskfs-3.3.0-2.6.32.lustremaster_g0533e7b.x86_64.rpm lustre-ldiskfs-debuginfo-3.3.0-2.6.32.lustremaster_g0533e7b.x86_64.rpm lustre-modules-2.0.61-2.6.32.lustremaster_g0533e7b.x86_64.rpm lustre-source-2.0.61-2.6.32.lustremaster_g0533e7b.x86_64.rpm lustre-tests-2.0.61-2.6.32.lustremaster_g0533e7b.x86_64.rpm
e2fsprogs is needed to run the test suite.
# rpm -Uvh ./e2fsprogs-1.42.6.wc2-7.el6.x86_64.rpm ./e2fsprogs-libs-1.42.6.wc2-7.el6.x86_64.rpm
- Change to
rootand Change directory into ~
lustre-modulesand user space tools
# rpm -ivh lustre-ldiskfs-3.3.0-2.6.32.lustremaster* # rpm -ivh lustre-modules-2.0.61-2.6.32.lustremaster* # rpm -ivh lustre-2.0.61-2.6.32.lustremaster_* # rpm -ivh lustre-tests-*
Disable SELinux (Lustre Servers)
SELinux, which is on by default in RHEL/CentOS, will prevent the format commands for the various Lustre targets from completing. Therefore you must either disable it or adjust the settings. These instructions explain how to disable it.
- Run getenforce to see if SELinux is enabled. It should return 'Enforcing' or 'Disabled'.
- To disable it, vi edit
/etc/selinux/configand change the line '
selinux=enforcing' to '
Finally, reboot your system.
# vi /etc/selinux/config ---- # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=disabled # SELINUXTYPE= can take one of these two values: # targeted - Only targeted network daemons are protected. # strict - Full SELinux protection. SELINUXTYPE=targeted --- # shutdown -r now
# /usr/lib64/lustre/tests/llmount.sh Loading modules from /usr/lib64/lustre/tests/.. debug=0x33f0404 subsystem_debug=0xffb7e3ff gss/krb5 is not supported Formatting mgs, mds, osts Format mds1: /tmp/lustre-mdt1 Format ost1: /tmp/lustre-ost1 Format ost2: /tmp/lustre-ost2 Checking servers environments Checking clients rhel6-master environments Loading modules from /usr/lib64/lustre/tests/.. debug=0x33f0404 subsystem_debug=0xffb7e3ff gss/krb5 is not supported Setup mgs, mdt, osts Starting mds1: -o loop,user_xattr,acl /tmp/lustre-mdt1 /mnt/mds1 debug=0x33f0404 subsystem_debug=0xffb7e3ff debug_mb=10 Started lustre-MDT0000 Starting ost1: -o loop /tmp/lustre-ost1 /mnt/ost1 debug=0x33f0404 subsystem_debug=0xffb7e3ff debug_mb=10 Started lustre-OST0000 Starting ost2: -o loop /tmp/lustre-ost2 /mnt/ost2 debug=0x33f0404 subsystem_debug=0xffb7e3ff debug_mb=10 Started lustre-OST0001 Starting client: rhel5-build: -o user_xattr,acl,flock rhel6-master@tcp:/lustre /mnt/lustre debug=0x33f0404 subsystem_debug=0xffb7e3ff debug_mb=10 Using TIMEOUT=20 disable quota as required
- you You will now have a Lustre filesystem available at
- NOTE: if you receive an error similar to:
mkfs.lustre: Can't parse NID 'rhel6-master@tcp'you'll need to associate the IP address of a non-loopback interface with name of your machine into the