diff --git a/doc/Clusters_from_Scratch/en-US/Ch-Installation.xml b/doc/Clusters_from_Scratch/en-US/Ch-Installation.xml index bf23e48628..f4c396cd73 100644 --- a/doc/Clusters_from_Scratch/en-US/Ch-Installation.xml +++ b/doc/Clusters_from_Scratch/en-US/Ch-Installation.xml @@ -1,875 +1,874 @@ %BOOK_ENTITIES; ]> Installation
OS Installation Detailed instructions for installing Fedora are available at http://docs.fedoraproject.org/install-guide/f&DISTRO_VERSION;/ in a number of languages. The abbreviated version is as follows... Point your browser to http://fedoraproject.org/en/get-fedora-all, locate the Install Media section and download the install DVD that matches your hardware. Burn the disk image to a DVD http://docs.fedoraproject.org/readme-burning-isos/en-US.html and boot from it. Or use the image to boot a virtual machine as I have done here. After clicking through the welcome screen, select your language and keyboard layout http://docs.fedoraproject.org/install-guide/f&DISTRO_VERSION;/en-US/html/s1-langselection-x86.html
Fedora Installation - Welcome Fedora Installation: Good choice
Fedora Installation - Storage Devices Fedora Installation: Storage Devices
Assign your machine a host name. http://docs.fedoraproject.org/install-guide/f&DISTRO_VERSION;/en-US/html/sn-networkconfig-fedora.html I happen to control the clusterlabs.org domain name, so I will use that here.
Fedora Installation - Hostname Fedora Installation: Choose a hostname
You will then be prompted to indicate the machine’s physical location and to supply a root password. http://docs.fedoraproject.org/install-guide/f&DISTRO_VERSION;/en-US/html/sn-account_configuration.html Now select where you want Fedora installed. http://docs.fedoraproject.org/install-guide/f13/en-US/html/s1-diskpartsetup-x86.html As I don’t care about any existing data, I will accept the default and allow Fedora to use the complete drive. However I want to reserve some space for DRBD, so I'll check the Review and modify partitioning layout box.
Fedora Installation - Installation Type Fedora Installation: Choose an installation type
By default, Fedora will give all the space to the / (aka. root) partition. Wel'll take some back so we can use DRBD.
Fedora Installation - Default Partitioning
The finalized partition layout should look something like the diagram below. If you plan on following the DRBD or GFS2 portions of this guide, you should reserve at least 1Gb of space on each machine from which to create a shared volume.
Fedora Installation - Customize Partitioning Fedora Installation: Create a partition to use (later) for website data
Fedora Installation - Bootloader Fedora Installation: Unless you have a strong reason not to, accept the default bootloader location
Next choose which software should be installed. Change the selection to Web Server since we plan on using Apache. Don't enable updates yet, we'll do that (and install any extra software we need) later. After you click next, Fedora will begin installing.
Fedora Installation - Software Fedora Installation: Software selection
Fedora Installation - Installing Fedora Installation: Go grab something to drink, this may take a while
Fedora Installation - Installation Complete Fedora Installation: Stage 1, completed
Once the node reboots, follow the on screen instructions http://docs.fedoraproject.org/install-guide/f&DISTRO_VERSION;/en-US/html/ch-firstboot.html to create a system user and configure the time.
Fedora Installation - First Boot
Fedora Installation - Create Non-privileged User Fedora Installation: Creating a non-privileged user, take note of the password, you'll need it soon
It is highly recommended to enable NTP on your cluster nodes. Doing so ensures all nodes agree on the current time and makes reading log files significantly easier.
Fedora Installation - Date and Time Fedora Installation: Enable NTP to keep the times on all your nodes consistent
Click through the next screens until you reach the login window. Click on the user you created and supply the password you indicated earlier.
Fedora Installation - Customize Networking Fedora Installation: Click here to configure networking
Do not accept the default network settings. Cluster machines should never obtain an ip address via DHCP. Here I will use the internal addresses for the clusterlab.org network.
Fedora Installation - Specify Network Preferences Fedora Installation: Specify network settings for your machine, never choose DHCP
Fedora Installation - Activate Networking Fedora Installation: Click the big green button to activate your changes
Fedora Installation - Bring up the Terminal Fedora Installation: Down to business, fire up the command line
That was the last screenshot, from here on in we’re going to be working from the terminal.
Cluster Software Installation Go to the terminal window you just opened and switch to the super user (aka. "root") account with the su command. You will need to supply the password you entered earlier during the installation process. [beekhof@pcmk-1 ~]$ su - Password: [root@pcmk-1 ~]# Note that the username (the text before the @ symbol) now indicates we’re running as the super user “root”. [root@pcmk-1 ~]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 link/ether 00:0c:29:6f:e1:58 brd ff:ff:ff:ff:ff:ff inet 192.168.9.41/24 brd 192.168.9.255 scope global eth0 inet6 ::20c:29ff:fe6f:e158/64 scope global dynamic valid_lft 2591667sec preferred_lft 604467sec inet6 2002:57ae:43fc:0:20c:29ff:fe6f:e158/64 scope global dynamic valid_lft 2591990sec preferred_lft 604790sec inet6 fe80::20c:29ff:fe6f:e158/64 scope link valid_lft forever preferred_lft forever [root@pcmk-1 ~]# ping -c 1 www.google.com PING www.l.google.com (74.125.39.99) 56(84) bytes of data. 64 bytes from fx-in-f99.1e100.net (74.125.39.99): icmp_seq=1 ttl=56 time=16.7 ms --- www.l.google.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 20ms rtt min/avg/max/mdev = 16.713/16.713/16.713/0.000 ms [root@pcmk-1 ~]# /sbin/chkconfig network on [root@pcmk-1 ~]#
Security Shortcuts To simplify this guide and focus on the aspects directly connected to clustering, we will now disable the machine’s firewall and SELinux installation. Both of these actions create significant security issues and should not be performed on machines that will be exposed to the outside world. TODO: Create an Appendix that deals with (at least) re-enabling the firewall. [root@pcmk-1 ~]# sed -i.bak "s/SELINUX=enforcing/SELINUX=permissive/g" /etc/selinux/config [root@pcmk-1 ~]# /sbin/chkconfig --del iptables [root@pcmk-1 ~]# service iptables stop iptables: Flushing firewall rules: [ OK ] iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Unloading modules: [ OK ] You will need to reboot for the SELinux changes to take effect. Otherwise you will see something like this when you start corosync: May 4 19:30:54 pcmk-1 setroubleshoot: SELinux is preventing /usr/sbin/corosync "getattr" access on /. For complete SELinux messages. run sealert -l 6e0d4384-638e-4d55-9aaf-7dac011f29c1 May 4 19:30:54 pcmk-1 setroubleshoot: SELinux is preventing /usr/sbin/corosync "getattr" access on /. For complete SELinux messages. run sealert -l 6e0d4384-638e-4d55-9aaf-7dac011f29c1
Install the Cluster Software Since version 12, Fedora comes with recent versions of everything you need, so simply fire up the shell and run: [root@pcmk-1 ~]# sed -i.bak "s/enabled=0/enabled=1/g" /etc/yum.repos.d/fedora.repo [root@pcmk-1 ~]# sed -i.bak "s/enabled=0/enabled=1/g" /etc/yum.repos.d/fedora-updates.repo [root@pcmk-1 ~]# yum install -y pacemaker corosync -[root@pcmk-1 ~]# yum install -y pacemaker corosync Loaded plugins: presto, refresh-packagekit fedora/metalink | 22 kB 00:00 fedora-debuginfo/metalink | 16 kB 00:00 fedora-debuginfo | 3.2 kB 00:00 fedora-debuginfo/primary_db | 1.4 MB 00:04 fedora-source/metalink | 22 kB 00:00 fedora-source | 3.2 kB 00:00 fedora-source/primary_db | 3.0 MB 00:05 updates/metalink | 26 kB 00:00 updates | 2.6 kB 00:00 updates/primary_db | 1.1 kB 00:00 updates-debuginfo/metalink | 18 kB 00:00 updates-debuginfo | 2.6 kB 00:00 updates-debuginfo/primary_db | 1.1 kB 00:00 updates-source/metalink | 25 kB 00:00 updates-source | 2.6 kB 00:00 updates-source/primary_db | 1.1 kB 00:00 Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package corosync.x86_64 0:1.2.1-1.fc13 set to be updated --> Processing Dependency: corosynclib = 1.2.1-1.fc13 for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libquorum.so.4(COROSYNC_QUORUM_1.0)(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libvotequorum.so.4(COROSYNC_VOTEQUORUM_1.0)(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libcpg.so.4(COROSYNC_CPG_1.0)(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libconfdb.so.4(COROSYNC_CONFDB_1.0)(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libcfg.so.4(COROSYNC_CFG_0.82)(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libpload.so.4(COROSYNC_PLOAD_1.0)(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: liblogsys.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libconfdb.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libcoroipcc.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libcpg.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libquorum.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libcoroipcs.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libvotequorum.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libcfg.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libtotem_pg.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 --> Processing Dependency: libpload.so.4()(64bit) for package: corosync-1.2.1-1.fc13.x86_64 ---> Package pacemaker.x86_64 0:1.1.1-1.fc13 set to be updated --> Processing Dependency: heartbeat >= 3.0.0 for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: net-snmp >= 5.4 for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: resource-agents for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: cluster-glue for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libnetsnmp.so.20()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libcrmcluster.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libpengine.so.3()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libnetsnmpagent.so.20()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libesmtp.so.5()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libstonithd.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libhbclient.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libpils.so.2()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libpe_status.so.2()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libnetsnmpmibs.so.20()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libnetsnmphelpers.so.20()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libcib.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libccmclient.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libstonith.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: liblrm.so.2()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libtransitioner.so.1()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libpe_rules.so.2()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libcrmcommon.so.2()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Processing Dependency: libplumb.so.2()(64bit) for package: pacemaker-1.1.1-1.fc13.x86_64 --> Running transaction check ---> Package cluster-glue.x86_64 0:1.0.2-1.fc13 set to be updated --> Processing Dependency: perl-TimeDate for package: cluster-glue-1.0.2-1.fc13.x86_64 --> Processing Dependency: libOpenIPMIutils.so.0()(64bit) for package: cluster-glue-1.0.2-1.fc13.x86_64 --> Processing Dependency: libOpenIPMIposix.so.0()(64bit) for package: cluster-glue-1.0.2-1.fc13.x86_64 --> Processing Dependency: libopenhpi.so.2()(64bit) for package: cluster-glue-1.0.2-1.fc13.x86_64 --> Processing Dependency: libOpenIPMI.so.0()(64bit) for package: cluster-glue-1.0.2-1.fc13.x86_64 ---> Package cluster-glue-libs.x86_64 0:1.0.2-1.fc13 set to be updated ---> Package corosynclib.x86_64 0:1.2.1-1.fc13 set to be updated --> Processing Dependency: librdmacm.so.1(RDMACM_1.0)(64bit) for package: corosynclib-1.2.1-1.fc13.x86_64 --> Processing Dependency: libibverbs.so.1(IBVERBS_1.0)(64bit) for package: corosynclib-1.2.1-1.fc13.x86_64 --> Processing Dependency: libibverbs.so.1(IBVERBS_1.1)(64bit) for package: corosynclib-1.2.1-1.fc13.x86_64 --> Processing Dependency: libibverbs.so.1()(64bit) for package: corosynclib-1.2.1-1.fc13.x86_64 --> Processing Dependency: librdmacm.so.1()(64bit) for package: corosynclib-1.2.1-1.fc13.x86_64 ---> Package heartbeat.x86_64 0:3.0.0-0.7.0daab7da36a8.hg.fc13 set to be updated --> Processing Dependency: PyXML for package: heartbeat-3.0.0-0.7.0daab7da36a8.hg.fc13.x86_64 ---> Package heartbeat-libs.x86_64 0:3.0.0-0.7.0daab7da36a8.hg.fc13 set to be updated ---> Package libesmtp.x86_64 0:1.0.4-12.fc12 set to be updated ---> Package net-snmp.x86_64 1:5.5-12.fc13 set to be updated --> Processing Dependency: libsensors.so.4()(64bit) for package: 1:net-snmp-5.5-12.fc13.x86_64 ---> Package net-snmp-libs.x86_64 1:5.5-12.fc13 set to be updated ---> Package pacemaker-libs.x86_64 0:1.1.1-1.fc13 set to be updated ---> Package resource-agents.x86_64 0:3.0.10-1.fc13 set to be updated --> Processing Dependency: libnet.so.1()(64bit) for package: resource-agents-3.0.10-1.fc13.x86_64 --> Running transaction check ---> Package OpenIPMI-libs.x86_64 0:2.0.16-8.fc13 set to be updated ---> Package PyXML.x86_64 0:0.8.4-17.fc13 set to be updated ---> Package libibverbs.x86_64 0:1.1.3-4.fc13 set to be updated --> Processing Dependency: libibverbs-driver for package: libibverbs-1.1.3-4.fc13.x86_64 ---> Package libnet.x86_64 0:1.1.4-3.fc12 set to be updated ---> Package librdmacm.x86_64 0:1.0.10-2.fc13 set to be updated ---> Package lm_sensors-libs.x86_64 0:3.1.2-2.fc13 set to be updated ---> Package openhpi-libs.x86_64 0:2.14.1-3.fc13 set to be updated ---> Package perl-TimeDate.noarch 1:1.20-1.fc13 set to be updated --> Running transaction check ---> Package libmlx4.x86_64 0:1.0.1-5.fc13 set to be updated --> Finished Dependency Resolution Dependencies Resolved ========================================================================================== Package Arch Version Repository Size ========================================================================================== Installing: corosync x86_64 1.2.1-1.fc13 fedora 136 k pacemaker x86_64 1.1.1-1.fc13 fedora 543 k Installing for dependencies: OpenIPMI-libs x86_64 2.0.16-8.fc13 fedora 474 k PyXML x86_64 0.8.4-17.fc13 fedora 906 k cluster-glue x86_64 1.0.2-1.fc13 fedora 230 k cluster-glue-libs x86_64 1.0.2-1.fc13 fedora 116 k corosynclib x86_64 1.2.1-1.fc13 fedora 145 k heartbeat x86_64 3.0.0-0.7.0daab7da36a8.hg.fc13 updates 172 k heartbeat-libs x86_64 3.0.0-0.7.0daab7da36a8.hg.fc13 updates 265 k libesmtp x86_64 1.0.4-12.fc12 fedora 54 k libibverbs x86_64 1.1.3-4.fc13 fedora 42 k libmlx4 x86_64 1.0.1-5.fc13 fedora 27 k libnet x86_64 1.1.4-3.fc12 fedora 49 k librdmacm x86_64 1.0.10-2.fc13 fedora 22 k lm_sensors-libs x86_64 3.1.2-2.fc13 fedora 37 k net-snmp x86_64 1:5.5-12.fc13 fedora 295 k net-snmp-libs x86_64 1:5.5-12.fc13 fedora 1.5 M openhpi-libs x86_64 2.14.1-3.fc13 fedora 135 k pacemaker-libs x86_64 1.1.1-1.fc13 fedora 264 k perl-TimeDate noarch 1:1.20-1.fc13 fedora 42 k resource-agents x86_64 3.0.10-1.fc13 fedora 357 k Transaction Summary ========================================================================================= Install 21 Package(s) Upgrade 0 Package(s) Total download size: 5.7 M Installed size: 20 M Downloading Packages: Setting up and reading Presto delta metadata updates-testing/prestodelta | 164 kB 00:00 fedora/prestodelta | 150 B 00:00 Processing delta metadata Package(s) data still to download: 5.7 M (1/21): OpenIPMI-libs-2.0.16-8.fc13.x86_64.rpm | 474 kB 00:00 (2/21): PyXML-0.8.4-17.fc13.x86_64.rpm | 906 kB 00:01 (3/21): cluster-glue-1.0.2-1.fc13.x86_64.rpm | 230 kB 00:00 (4/21): cluster-glue-libs-1.0.2-1.fc13.x86_64.rpm | 116 kB 00:00 (5/21): corosync-1.2.1-1.fc13.x86_64.rpm | 136 kB 00:00 (6/21): corosynclib-1.2.1-1.fc13.x86_64.rpm | 145 kB 00:00 (7/21): heartbeat-3.0.0-0.7.0daab7da36a8.hg.fc13.x86_64.rpm | 172 kB 00:00 (8/21): heartbeat-libs-3.0.0-0.7.0daab7da36a8.hg.fc13.x86_64.rpm | 265 kB 00:00 (9/21): libesmtp-1.0.4-12.fc12.x86_64.rpm | 54 kB 00:00 (10/21): libibverbs-1.1.3-4.fc13.x86_64.rpm | 42 kB 00:00 (11/21): libmlx4-1.0.1-5.fc13.x86_64.rpm | 27 kB 00:00 (12/21): libnet-1.1.4-3.fc12.x86_64.rpm | 49 kB 00:00 (13/21): librdmacm-1.0.10-2.fc13.x86_64.rpm | 22 kB 00:00 (14/21): lm_sensors-libs-3.1.2-2.fc13.x86_64.rpm | 37 kB 00:00 (15/21): net-snmp-5.5-12.fc13.x86_64.rpm | 295 kB 00:00 (16/21): net-snmp-libs-5.5-12.fc13.x86_64.rpm | 1.5 MB 00:01 (17/21): openhpi-libs-2.14.1-3.fc13.x86_64.rpm | 135 kB 00:00 (18/21): pacemaker-1.1.1-1.fc13.x86_64.rpm | 543 kB 00:00 (19/21): pacemaker-libs-1.1.1-1.fc13.x86_64.rpm | 264 kB 00:00 (20/21): perl-TimeDate-1.20-1.fc13.noarch.rpm | 42 kB 00:00 (21/21): resource-agents-3.0.10-1.fc13.x86_64.rpm | 357 kB 00:00 ---------------------------------------------------------------------------------------- Total 539 kB/s | 5.7 MB 00:10 warning: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID e8e40fde: NOKEY fedora/gpgkey | 3.2 kB 00:00 ... Importing GPG key 0xE8E40FDE "Fedora (13) <fedora@fedoraproject.org%gt;" from /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-x86_64 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : lm_sensors-libs-3.1.2-2.fc13.x86_64 1/21 Installing : 1:net-snmp-libs-5.5-12.fc13.x86_64 2/21 Installing : 1:net-snmp-5.5-12.fc13.x86_64 3/21 Installing : openhpi-libs-2.14.1-3.fc13.x86_64 4/21 Installing : libibverbs-1.1.3-4.fc13.x86_64 5/21 Installing : libmlx4-1.0.1-5.fc13.x86_64 6/21 Installing : librdmacm-1.0.10-2.fc13.x86_64 7/21 Installing : corosync-1.2.1-1.fc13.x86_64 8/21 Installing : corosynclib-1.2.1-1.fc13.x86_64 9/21 Installing : libesmtp-1.0.4-12.fc12.x86_64 10/21 Installing : OpenIPMI-libs-2.0.16-8.fc13.x86_64 11/21 Installing : PyXML-0.8.4-17.fc13.x86_64 12/21 Installing : libnet-1.1.4-3.fc12.x86_64 13/21 Installing : 1:perl-TimeDate-1.20-1.fc13.noarch 14/21 Installing : cluster-glue-1.0.2-1.fc13.x86_64 15/21 Installing : cluster-glue-libs-1.0.2-1.fc13.x86_64 16/21 Installing : resource-agents-3.0.10-1.fc13.x86_64 17/21 Installing : heartbeat-libs-3.0.0-0.7.0daab7da36a8.hg.fc13.x86_64 18/21 Installing : heartbeat-3.0.0-0.7.0daab7da36a8.hg.fc13.x86_64 19/21 Installing : pacemaker-1.1.1-1.fc13.x86_64 20/21 Installing : pacemaker-libs-1.1.1-1.fc13.x86_64 21/21 Installed: corosync.x86_64 0:1.2.1-1.fc13 pacemaker.x86_64 0:1.1.1-1.fc13 Dependency Installed: OpenIPMI-libs.x86_64 0:2.0.16-8.fc13 PyXML.x86_64 0:0.8.4-17.fc13 cluster-glue.x86_64 0:1.0.2-1.fc13 cluster-glue-libs.x86_64 0:1.0.2-1.fc13 corosynclib.x86_64 0:1.2.1-1.fc13 heartbeat.x86_64 0:3.0.0-0.7.0daab7da36a8.hg.fc13 heartbeat-libs.x86_64 0:3.0.0-0.7.0daab7da36a8.hg.fc13 libesmtp.x86_64 0:1.0.4-12.fc12 libibverbs.x86_64 0:1.1.3-4.fc13 libmlx4.x86_64 0:1.0.1-5.fc13 libnet.x86_64 0:1.1.4-3.fc12 librdmacm.x86_64 0:1.0.10-2.fc13 lm_sensors-libs.x86_64 0:3.1.2-2.fc13 net-snmp.x86_64 1:5.5-12.fc13 net-snmp-libs.x86_64 1:5.5-12.fc13 openhpi-libs.x86_64 0:2.14.1-3.fc13 pacemaker-libs.x86_64 0:1.1.1-1.fc13 perl-TimeDate.noarch 1:1.20-1.fc13 resource-agents.x86_64 0:3.0.10-1.fc13 Complete! [root@pcmk-1 ~]#
Before You Continue Repeat the Installation steps so that you have 2 Fedora nodes with the cluster software installed. For the purposes of this document, the additional node is called pcmk-2 with address 192.168.122.42.
Setup
Finalize Networking Confirm that you can communicate with the two new nodes:
Verify Connectivity by IP address ping -c 3 192.168.122.102 [root@pcmk-1 ~]# ping -c 3 192.168.122.102 PING 192.168.122.102 (192.168.122.102) 56(84) bytes of data. 64 bytes from 192.168.122.102: icmp_seq=1 ttl=64 time=0.343 ms 64 bytes from 192.168.122.102: icmp_seq=2 ttl=64 time=0.402 ms 64 bytes from 192.168.122.102: icmp_seq=3 ttl=64 time=0.558 ms --- 192.168.122.102 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2000ms rtt min/avg/max/mdev = 0.343/0.434/0.558/0.092 ms
Now we need to make sure we can communicate with the machines by their name. If you have a DNS server, add additional entries for the three machines. Otherwise, you’ll need to add the machines to /etc/hosts . Below are the entries for my cluster nodes:
Set up /etc/hosts entries grep pcmk /etc/hosts [root@pcmk-1 ~]# grep pcmk /etc/hosts 192.168.122.101 pcmk-1.clusterlabs.org pcmk-1 192.168.122.102 pcmk-2.clusterlabs.org pcmk-2
We can now verify the setup by again using ping:
Verify Connectivity by Hostname ping -c 3 pcmk-2 [root@pcmk-1 ~]# ping -c 3 pcmk-2 PING pcmk-2.clusterlabs.org (192.168.122.101) 56(84) bytes of data. 64 bytes from pcmk-1.clusterlabs.org (192.168.122.101): icmp_seq=1 ttl=64 time=0.164 ms 64 bytes from pcmk-1.clusterlabs.org (192.168.122.101): icmp_seq=2 ttl=64 time=0.475 ms 64 bytes from pcmk-1.clusterlabs.org (192.168.122.101): icmp_seq=3 ttl=64 time=0.186 ms --- pcmk-2.clusterlabs.org ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2001ms rtt min/avg/max/mdev = 0.164/0.275/0.475/0.141 ms
Configure SSH SSH is a convenient and secure way to copy files and perform commands remotely. For the purposes of this guide, we will create a key without a password (using the -N “” option) so that we can perform remote actions without being prompted. Unprotected SSH keys, those without a password, are not recommended for servers exposed to the outside world. Create a new key and allow anyone with that key to log in:
Creating and Activating a new SSH Key [root@pcmk-1 ~]# ssh-keygen -t dsa -f ~/.ssh/id_dsa -N "" Generating public/private dsa key pair. Your identification has been saved in /root/.ssh/id_dsa. Your public key has been saved in /root/.ssh/id_dsa.pub. The key fingerprint is: 91:09:5c:82:5a:6a:50:08:4e:b2:0c:62:de:cc:74:44 root@pcmk-1.clusterlabs.org The key's randomart image is: +--[ DSA 1024]----+ |==.ooEo.. | |X O + .o o | | * A + | | + . | | . S | | | | | | | | | +-----------------+ [root@pcmk-1 ~]# cp .ssh/id_dsa.pub .ssh/authorized_keys [root@pcmk-1 ~]#
Install the key on the other nodes and test that you can now run commands remotely, without being prompted
Installing the SSH Key on Another Host [root@pcmk-1 ~]# scp -r .ssh pcmk-2: The authenticity of host 'pcmk-2 (192.168.122.102)' can't be established. RSA key fingerprint is b1:2b:55:93:f1:d9:52:2b:0f:f2:8a:4e:ae:c6:7c:9a. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'pcmk-2,192.168.122.102' (RSA) to the list of known hosts. root@pcmk-2's password: id_dsa.pub 100% 616 0.6KB/s 00:00 id_dsa 100% 672 0.7KB/s 00:00 known_hosts 100% 400 0.4KB/s 00:00 authorized_keys 100% 616 0.6KB/s 00:00 [root@pcmk-1 ~]# ssh pcmk-2 -- uname -n pcmk-2 [root@pcmk-1 ~]#
Short Node Names During installation, we filled in the machine’s fully qualifier domain name (FQDN) which can be rather long when it appears in cluster logs and status output. See for yourself how the machine identifies itself: -[root@pcmk-1 ~]# uname -n +[root@pcmk-1 ~]# uname -n pcmk-1.clusterlabs.org -[root@pcmk-1 ~]# dnsdomainname +[root@pcmk-1 ~]# dnsdomainname clusterlabs.org The output from the second command is fine, but we really don’t need the domain name included in the basic host details. To address this, we need to update /etc/sysconfig/network. This is what it should look like before we start. -cat /etc/sysconfig/network +[root@pcmk-1 ~]# cat /etc/sysconfig/network NETWORKING=yes HOSTNAME=pcmk-1.clusterlabs.org GATEWAY=192.168.122.1 All we need to do now is strip off the domain name portion, which is stored elsewhere anyway. - sed -i.bak 's/\.[a-z].*//g' /etc/sysconfig/network + [root@pcmk-1 ~]# sed -i.bak 's/\.[a-z].*//g' /etc/sysconfig/network Now confirm the change was successful. The revised file contents should look something like this. -[root@pcmk-1 ~]# cat /etc/sysconfig/network +[root@pcmk-1 ~]# cat /etc/sysconfig/network NETWORKING=yes HOSTNAME=pcmk-1 GATEWAY=192.168.122.1 However we’re not finished. The machine wont normally see the shortened host name until about it reboots, but we can force it to update. -[root@pcmk-1 ~]# source /etc/sysconfig/network -[root@pcmk-1 ~]# hostname $HOSTNAME +[root@pcmk-1 ~]# source /etc/sysconfig/network +[root@pcmk-1 ~]# hostname $HOSTNAME Now check the machine is using the correct names -[root@pcmk-1 ~]# uname -n +[root@pcmk-1 ~]# uname -n pcmk-1 -[root@pcmk-1 ~]# dnsdomainname +[root@pcmk-1 ~]# dnsdomainname clusterlabs.org Now repeat on pcmk-2.
Configuring Corosync Choose a port number and multi-cast http://en.wikipedia.org/wiki/Multicast address. http://en.wikipedia.org/wiki/Multicast_address Be sure that the values you chose do not conflict with any existing clusters you might have. For advice on choosing a multi-cast address, see http://www.29west.com/docs/THPM/multicast-address-assignment.html For this document, I have chosen port 4000 and used 226.94.1.1 as the multi-cast address. -export ais_port=4000 -export ais_mcast=226.94.1.1 +[root@pcmk-1 ~]# export ais_port=4000 +[root@pcmk-1 ~]# export ais_mcast=226.94.1.1 Next we automatically determine the hosts address. By not using the full address, we make the configuration suitable to be copied to other nodes. - export ais_addr=`ip addr | grep "inet " | tail -n 1 | awk '{print $4}' | sed s/255/0/` + [root@pcmk-1 ~]# export ais_addr=`ip addr | grep "inet " | tail -n 1 | awk '{print $4}' | sed s/255/0/` Display and verify the configuration options -[root@pcmk-1 ~]# env | grep ais_ +[root@pcmk-1 ~]# env | grep ais_ ais_mcast=226.94.1.1 ais_port=4000 ais_addr=192.168.122.0 Once you’re happy with the chosen values, update the Corosync configuration -cp /etc/corosync/corosync.conf.example /etc/corosync/corosync.conf -sed -i.bak "s/.*mcastaddr:.*/mcastaddr:\ $ais_mcast/g" /etc/corosync/corosync.conf -sed -i.bak "s/.*mcastport:.*/mcastport:\ $ais_port/g" /etc/corosync/corosync.conf -sed -i.bak "s/.*bindnetaddr:.*/bindnetaddr:\ $ais_addr/g" /etc/corosync/corosync.conf +[root@pcmk-1 ~]# cp /etc/corosync/corosync.conf.example /etc/corosync/corosync.conf +[root@pcmk-1 ~]# sed -i.bak "s/.*mcastaddr:.*/mcastaddr:\ $ais_mcast/g" /etc/corosync/corosync.conf +[root@pcmk-1 ~]# sed -i.bak "s/.*mcastport:.*/mcastport:\ $ais_port/g" /etc/corosync/corosync.conf +[root@pcmk-1 ~]# sed -i.bak "s/.*bindnetaddr:.*/bindnetaddr:\ $ais_addr/g" /etc/corosync/corosync.conf Finally, tell Corosync to start Pacemaker -cat <<-END >>/etc/corosync/service.d/pcmk +[root@pcmk-1 ~]# cat <<-END >>/etc/corosync/service.d/pcmk service { # Load the Pacemaker Cluster Resource Manager name: pacemaker ver: 0 } END The final configuration should look something like the sample in the appendix.
Propagate the Configuration Now we need to copy the changes so far to the other node: [root@pcmk-1 ~]# for f in /etc/corosync/corosync.conf /etc/corosync/service.d/pcmk /etc/hosts; do scp $f pcmk-2:$f ; done corosync.conf 100% 1528 1.5KB/s 00:00 hosts 100% 281 0.3KB/s 00:00 [root@pcmk-1 ~]#