See for yourself how the machine identifies itself: [[email protected] ~]# uname -n pcmk-1.localdomain We can use the hostnamectl tool to strip off the domain name: [[email protected] ~]# hostnamectl set-hostname $(uname -n Installation2.1. Select the / mountpoint, and reduce the desired capacity by 1GiB or so. Apply Updates2.2.4. Source
Excerpts and links may be used, provided that full and clear credit is given to Entasis Technology Consulting, LLC and IT From All Angles with appropriate and specific direction to the configfs is mounted at /sys/kernel/config, instead of /config, and debugfs at /sys/kernel/debug, instead of /debug. (dlmfs still mounts at the old mountpoint /dlm.) While not related to EL5 per se, it Is there a limit to the size of an ocfs2 file system? Repeat for Second Node2.4. this content
Italics denotes text you do not input literally or displayed text that changes depending on circumstance. Pacemaker’s key features include: Detection and recovery of node and service-level failures Storage agnostic, no requirement for shared storage Resource agnostic, anything that can be scripted can be clustered Supports fencing In order to follow the DRBD and GFS2 portions of this guide, we need to reserve space on each machine for a replicated volume. The labels also identify volumes during mount. # mount -L "label" /dir The volume label is changeable using the tunefs.ocfs2 utility.
To skip this check, use --force or -F. New password: Retype new password: passwd: all authentication tokens updated successfully.Note Alternatively, to script this process or set the password on a different machine from the one you’re logged into, you Installation Options2.1.3. Handles blockable file system tasks like truncate log flush, orphan dir recovery and local alloc recovery, which involve taking dlm locks.
The next step would be to query the dlm for the lock resource. Configure Disk2.1.5. This may be necessary when you hat o2cb online first and created the cluster afterwards. http://marc.info/?l=ocfs2-users&m=129911656312146 Some vendors will refuse to support clusters that have STONITH disabled.
This means clients need to be running a 2.4.x kernel or above. To address this, Pacemaker has the concept of resource stickiness, which controls how strongly a service prefers to stay running where it is. Please try the request again. Is your /etc/ocfs2/cluster.conf correct?
If the other node is alive and is connected, it is expected to respond. Wrote Superblock However, it is quite possible that one or more backup locations are in use by the file system. (tunefs.ocfs2 backs up the block only if all the backup locations [email protected] ~ # ssh -l root 192.168.122.101 The authenticity of host '192.168.122.101 (192.168.122.101)' can't be established. Removing all cluster configuration files...
In OCFS2, the super blocks are backed up to blocks at the 1G, 4G, 16G, 64G, 256G and 1T byte offsets. http://jessriegel.com/could-not/joomla-could-not-create-directory-unable-to-create-destination.html The fs uses this feature to auto remount ro when encountering on-disk corruptions (instead of panic-ing). What does package name ocfs2-2.6.9-22.0.1.ELsmp-1.2.1-1.i686.rpm mean? After starting the installation, select your language and keyboard layout at the welcome screen.
Configure Communication Between Nodes2.4.1. To disable STONITH, set the stonith-enabled cluster option to false: [[email protected] ~]# pcs property set stonith-enabled=false [[email protected] ~]# crm_verify -L With the new cluster option set, the configuration is now valid. Disable SELinux by setting "SELINUX=disabled" in /etc/selinux/config. have a peek here It should be noted that the super block is not backed up on devices smaller than 1G.
In the location constraint below, we are saying the WebSite resource prefers the node pcmk-1 with a score of 50. Configure Host Name Resolution2.4.2. Interesting Messages.
This tells Pacemaker three things about the resource you want to add: The first field (ocf in this case) is the standard to which the resource script conforms and where to Your public key has been saved in /root/.ssh/id_dsa.pub. If you are using older versions of corosync, you will have to ignore quorum at the pacemaker level, using pcs property set no-quorum-policy=ignore (or the equivalent command if you are using Reindexing Netezza Databases SHC041 on healthcheck Upgrading Netezza With Replication.
Fencing is the act of forecefully removing a node from a cluster. Re-scan the partition. Categoriesapple Asia Pacific big data analytics Cabling & Networks cloud Cloud computing Colocation & Hosting Company News Construction News data center data center news Data centers data centre data centre news Check This Out Unauthorized use and/or duplication of this material without express and written permission from this site’s author and/or owner is strictly prohibited.
How can one change the parameter value of O2CB_HEARTBEAT_THRESHOLD? The Scope of this Document1.2. Configure Host Name Resolution2.4.2. This is just to give a flavor of dlm debugging.
Copying statistics from a netezza database to another. Figure 2.3. CentOS 7.1 Console PromptNote From here on, we’re going to be working exclusively from the terminal. 2.2. Configure the OS2.2.1. Verify Networking Ensure that the machine has the static IP address you configured Check and open ports on Netezza Create another administrator in Netezza. This may include moving resources, stopping nodes and even forcing them offline with remote power switches.
A node self-fences if it fails to update its timestamp for ((O2CB_HEARTBEAT_THRESHOLD - 1) * 2) secs. Afrikaans العربية Беларуская български català فارسی suomi français Gaeilge galego 한국어 lietuvių latviešu македонски bahasa Melayu powered by ERROR The requested URL could not be retrieved The following error was encountered Explore the Existing Configuration5.2. Output sent to a terminal is set in mono-spaced roman and presented thus: books Desktop documentation drafts mss photos stuff svn books_tests Desktop1 downloads images notes scripts svgs Source-code listings are
When unmounting, the dlm migrated all mastered locks to another cluster node. Sanral Sick of bad service. The default is 5000 ms.