Red Hat Enterprise Linux 3
Cluster Suite Release Notes
Release Notes for Cluster Suite on Red Hat Enterprise Linux 3
Edition 1
Red Hat Engineering Content Services
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
Release Notes for Cluster Suite on Red Hat Enterprise Linux 3
Edition 1
Red Hat Engineering Content Services
Legal Notice
Copyright © 2005 2006 Red Hat, Inc.
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Abstract
New features, changes, and bugs fixed in Cluster Suite for Red Hat Enterprise Linux 3, updates 5, 6, 7,
and 8.
Table of Contents
Table of Contents
. . fa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3. . . . . . . . . .
Pr.e. . ce
1. Document Conventions 3
1.1. Typographic Conventions 3
1.2. Pull-quote Conventions 4
1.3. Notes and Warnings 5
2. Getting Help and Giving Feedback 5
2.1. Do You Need Help? 5
2.2. We Need Feedback! 6
. . vision Hist.ory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Re. . . . . . . . . . . . . 1.4. . . . . . . . . .
. . . . 1.4. . . . . . . . . .
Inde.x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F 14
H 14
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Red Hat Enterprise Linux 3 Cluster Suite Release Notes
2
Preface
Preface
1. Document Conventions
This manual uses several conventions to highlight certain words and phrases and draw attention to
specific pieces of information.
In PDF and paper editions, this manual uses typefaces drawn from the Liberation Fonts set. The
Liberation Fonts set is also used in HTML editions if the set is installed on your system. If not, alternative
but equivalent typefaces are displayed. Note: Red Hat Enterprise Linux 5 and later include the Liberation
Fonts set by default.
1.1. Typographic Conventions
Four typographic conventions are used to call attention to specific words and phrases. These
conventions, and the circumstances they apply to, are as follows.
Mono-spaced Bold
Used to highlight system input, including shell commands, file names and paths. Also used to highlight
keys and key combinations. For example:
To see the contents of the file my_next_bestselling_novel in your current working
directory, enter the cat my_next_bestselling_novel command at the shell prompt
and press Enter to execute the command.
The above includes a file name, a shell command and a key, all presented in mono-spaced bold and all
distinguishable thanks to context.
Key combinations can be distinguished from an individual key by the plus sign that connects each part of
a key combination. For example:
Press Enter to execute the command.
Press Ctrl+Alt+F2 to switch to a virtual terminal.
The first example highlights a particular key to press. The second example highlights a key combination:
a set of three keys pressed simultaneously.
If source code is discussed, class names, methods, functions, variable names and returned values
mentioned within a paragraph will be presented as above, in mono-spaced bold. For example:
File-related classes include filesystem for file systems, file for files, and dir for
directories. Each class has its own associated set of permissions.
Proportional Bold
This denotes words or phrases encountered on a system, including application names; dialog box text;
labeled buttons; check-box and radio button labels; menu titles and sub-menu titles. For example:
Choose System Preferences Mouse from the main menu bar to launch Mouse
Preferences. In the Buttons tab, select the Left-handed mouse check box and click
Close to switch the primary mouse button from the left to the right (making the mouse
suitable for use in the left hand).
To insert a special character into a gedit file, choose Applications Accessories
3
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
Character Map from the main menu bar. Next, choose Search Find& from the
Character Map menu bar, type the name of the character in the Search field and click
Next. The character you sought will be highlighted in the Character Table. Double-click
this highlighted character to place it in the Text to copy field and then click the Copy
button. Now switch back to your document and choose Edit Paste from the gedit menu
bar.
The above text includes application names; system-wide menu names and items; application-specific
menu names; and buttons and text found within a GUI interface, all presented in proportional bold and all
distinguishable by context.
Mono-spaced Bold Italic or Proportional Bold Italic
Whether mono-spaced bold or proportional bold, the addition of italics indicates replaceable or variable
text. Italics denotes text you do not input literally or displayed text that changes depending on
circumstance. For example:
To connect to a remote machine using ssh, type ssh username@domain.name at a shell
prompt. If the remote machine is example.com and your username on that machine is
john, type ssh john@example.com.
The mount -o remount file-system command remounts the named file system. For
example, to remount the /home file system, the command is mount -o remount /home.
To see the version of a currently installed package, use the rpm -q package command. It
will return a result as follows: package-version-release.
Note the words in bold italics above  username, domain.name, file-system, package, version and
release. Each word is a placeholder, either for text you enter when issuing a command or for text
displayed by the system.
Aside from standard usage for presenting the title of a work, italics denotes the first use of a new and
important term. For example:
Publican is a DocBook publishing system.
1.2. Pull-quote Conventions
Terminal output and source code listings are set off visually from the surrounding text.
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 also set in mono-spaced roman but add syntax highlighting as follows:
4
Preface
static int kvm_vm_ioctl_deassign_device(struct kvm *kvm,
struct kvm_assigned_pci_dev *assigned_dev)
{
int r = 0;
struct kvm_assigned_dev_kernel *match;
mutex_lock(&kvm->lock);
match = kvm_find_assigned_dev(&kvm->arch.assigned_dev_head,
assigned_dev->assigned_dev_id);
if (!match) {
printk(KERN_INFO "%s: device hasn't been assigned before, "
"so cannot be deassigned\n", __func__);
r = -EINVAL;
goto out;
}
kvm_deassign_device(kvm, match);
kvm_free_assigned_device(kvm, match);
out:
mutex_unlock(&kvm->lock);
return r;
}
1.3. Notes and Warnings
Finally, we use three visual styles to draw attention to information that might otherwise be overlooked.
Note
Notes are tips, shortcuts or alternative approaches to the task at hand. Ignoring a note should
have no negative consequences, but you might miss out on a trick that makes your life easier.
Important
Important boxes detail things that are easily missed: configuration changes that only apply to the
current session, or services that need restarting before an update will apply. Ignoring a box
labeled 'Important' will not cause data loss but may cause irritation and frustration.
Warning
Warnings should not be ignored. Ignoring warnings will most likely cause data loss.
2. Getting Help and Giving Feedback
2.1. Do You Need Help?
If you experience difficulty with a procedure described in this documentation, visit the Red Hat Customer
5
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
Portal at http://access.redhat.com. Through the customer portal, you can:
search or browse through a knowledgebase of technical support articles about Red Hat products.
submit a support case to Red Hat Global Support Services (GSS).
access other product documentation.
Red Hat also hosts a large number of electronic mailing lists for discussion of Red Hat software and
technology. You can find a list of publicly available mailing lists at https://www.redhat.com/mailman/listinfo.
Click on the name of any mailing list to subscribe to that list or to access the list archives.
2.2. We Need Feedback!
If you find a typographical error in this manual, or if you have thought of a way to make this manual
better, we would love to hear from you! Please submit a report in Bugzilla: http://bugzilla.redhat.com/
against the product Red Hat Enterprise Linux.
When submitting a bug report, be sure to mention the manual's identifier: Cluster_Suite_Release_Notes
If you have a suggestion for improving the documentation, try to be as specific as possible when
describing it. If you have found an error, please include the section number and some of the surrounding
text so we can find it easily.
6
Preface
RED HAT Cluster Suite RHEL3 U5 Release Notes
Copyright(c) 2005 Red Hat, Inc.
-------------------------------------------------------
Introduction:
The following topics are covered in this document:
o New Red Hat Cluster Suite Features for RHEL3 U5
o Defects Fixed in the Release
o Related Documentation
New Red Hat Cluster Suite Features for RHEL3 U5
o STONITH support for various Bull systems
A STONITH module for the Bull Novascale FAME architecture has been added.
Support is made possible by accessing the Platform Administration
Processor (PAP) management console. The configurable parameters in the
Cluster Configuration Tool (redhat-config-cluster) GUI is as follows:
pap:
IP Address: <-- IP address of PAP management console
Port: <-- Domain (the Bull virtual host)
Username: <-- Administrative user capable of issuing power on/off
commands for the given Domain
Password: <-- Password to authenticate the administrative username
Additionally, STONITH module support has been added for any BULL machine
that uses Intelligent Platform Management Interface over local area
networks (IPMI-over-LAN). The configurable parameters in the Cluster
Configuration Tool (redhat-config-cluster) GUI is as follows:
ipmilan:
IP Address: <-- IP address of the node's IPMI port
Port: <-- Unused
Username: <-- Administrative user capable of issuing power on/off
commands to the given IPMI port
Password: <-- Password to authenticate the administrative username
o STONITH support for IBM BladeCenter
A STONITH module for the IBM BladeCenter has been added. Support is made
possible by accessing the BladeCenter console via telnet. The configurable
parameters in the Cluster Configuration Tool (redhat-config-cluster) GUI
is as follows:
bladecenter:
IP Address: <-- IP address of management blade
Port: <-- Blade number
Username: <-- Administrative user capable of issuing power on/off
commands on the Blade Center
Password: <-- Password to authenticate the administrative username
o Per-IP address link monitoring for clusters where heartbeating is done
over a private LAN
7
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
A checkbox that enables link monitoring has been added to the IP address
dialog box of the Cluster Configuration Tool (redhat-config-cluster)
Defects Fixed in the Release
o Service number mismatches in pathological cases are retried
Users periodically received a "service number mismatch 4,6" at the
log level. The issue has been isolated to the Red Hat Enterprise
Linux kernel, and a retry was added so that clumanager only prints the
message if it receives bad data multiple instances in a row. Cluster
development is working with Kernel engineers to find the root cause of the
issue.
o STONITH subsystem left temporary files unaccounted for
The STONITH subsystem would pass configuration information in files
in the /tmp directory. When a new STONITH device (like a fence agent)
was configured, it would write all the information necessary to use that
device into a file in /tmp. The temporary file was mode 0600, but still
contained passwords and login names for the power switch. The temporary
files are now removed after being added to the cluster configuration.
o The clumanager init script missed a default case
The clumanager service init script did not cause an error message in default
cases (such as entering an invalid option or not entering an option at all)
as it should have.
o Routed IP tiebreaker addresses were not properly handled in some cases
The length of the ICMP packet (stored in the ICMP packet) was incorrect,
which caused pings to not get responses from various network router models.
o Random restarts of services with bogus status returns
Clumanager would restart a service after receiving an invalid status return.
Cluster developers could not reproduce the issue, but isolated it to a wait()
call that was interrupted by a signal.
o Upgrade postuninstall script fails if /etc/cluster.xml did not exist
An error message was reported if the /etc/cluster.xml configuration file was
not found during an upgrade of Red Hat Cluster Suite packages.
o Signals blocked when starting user services
Cluster services that used signals for communication/wakeups were broken
because of blocked signals during service initialization.
o Force unmount killed too many processes
8
Preface
Cluster Manager kills all processes using a specified mount, regardless
of whether or not Cluster Manager started the processes. Cluster Manager
must kill all processes using a file system in order to unmount it.
However, an issue was found in which a force unmount killed too many
processes.
Suppose there are two different mounts:
/var/mail <-- managed by cluster
/var/mail-backup <-- not managed by cluster; local copy
When Cluster Manager killed the processes using /var/mail while trying to
force-unmount it, it also killed all processes using /var/mail-
backup.
9
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
Red Hat Cluster Suite 3 RHEL3 U6 Release Notes
Copyright(c) 2005 Red Hat, Inc.
-------------------------------------------------------
Introduction
The following topics are covered in this document:
o Changes to Red Hat Cluster Suite 3
o Bugs Fixed in the Release
o Related Documentation
Changes to Red Hat Cluster Suite 3
Red Hat Cluster Suite 3 contains no new features for Red Hat Enterprise
Linux 3 Upate 6.
Bugs Fixed in the Release
o 155393 -- RFE: option to disable ARP checking on connections
o 162966 -- Fencing is not working with APC AP 9225 Masterswitch
o 163636 -- RFE: Provide iproute-based workaround of e1000 problem for
service IPs
o 164576 -- Piranha does not detect link-down events which would prevent
proper operation
o 151081 -- redhat-config-cluster clobbers /etc/cluster.xml symlink
For more information about bugs fixed in this release and other information
about the release, refer to the following errata on RHN
(https://rhn.redhat.com/):
o RHBA-2005:676 -- clumanager
o RHBA-2005:689 -- piranha
o RHBA-2005:765 -- redhat-config-cluster
Related Documentation
The following related documentation is available at
http://www.redhat.com/docs/manuals/csgfs/:
o Red Hat Cluster Suite Configuring and Managing a Cluster
(for Red Hat Cluster Suite 3)
o Release notes for Red Hat Cluster Suite 3
o Red Hat GFS 6.0 Administrator's Guide
o Release notes for Red Hat GFS 6.0
10
Preface
Red Hat Cluster Suite 3 RHEL3 U7 Release Notes
Copyright(c) 2006 Red Hat, Inc.
-------------------------------------------------------
March 22, 2006
Introduction
The following topics are covered in this document:
o Changes to Red Hat Cluster Suite 3
o Bugs Fixed in the Release
o Related Documentation
Changes to Red Hat Cluster Suite 3
Red Hat Cluster Suite 3 contains no new features for Red Hat Enterprise
Linux 3 Update 7.
Bugs Fixed in the Release
o 171637 -- lsof -b still blocks on gethostbyname causing slow force
unmount; use -bn instead
o 172886 -- Poor signal handling in cluquorumd
o 172893 -- clulockd hang causes infinite timeout loop from connecting
clients
o 172894 -- Misc. cluster locking performance + bugfixes
For more information about bugs fixed in this release and other information
about the release, refer to the following errata on RHN
(https://rhn.redhat.com/):
RHBA-2006:0196 - clumanager bug fix update
Related Documentation
The following related documentation is available at
http://www.redhat.com/docs/manuals/csgfs/:
o Red Hat Cluster Suite Configuring and Managing a Cluster
(for Red Hat Cluster Suite 3)
o Release notes for Red Hat Cluster Suite 3
o Red Hat GFS 6.0 Administrator's Guide
o Release notes for Red Hat GFS 6.0
11
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
Red Hat Cluster Suite 3 RHEL3 U8 Release Notes
Copyright(c) 2006 Red Hat, Inc.
-------------------------------------------------------
September 19, 2006
Introduction
The following topics are covered in this document:
o Changes to Red Hat Cluster Suite 3
o Bugs Fixed in the Release
o Related Documentation
Changes to Red Hat Cluster Suite 3
The following features are new for this release:
o Allows quorum heartbeats to take priority over the network
heartbeat. This feature allows a cluster to fall back on the
quorum heartbeat method if the network fails. Added in Bugzilla
179363.
o Adds the ability for clumanager to relocate dead services without
restarting locally. Added in Bugzilla 180969.
Bugs Fixed in the Release
o 179357 -- 768370 - Problem enabling quota's on cluster
o 179363 -- Feature: Allow quorum heartbeats
to take priority over Network heartbeat
o 180969 -- RFE: Add the ability for clumanager to relocate
dead services without restarting locally
o 188023 -- active NFS POSIX locks prevent umount from
occurring during failover
o 196047 -- split brain on shutdown causes file system corruption.
o 195461 -- [RHEL 3 CS BUG U8?] LVS monitor script hangs
For more information about bugs fixed in this release and other information
about the release, refer to the following errata on RHN
(https://rhn.redhat.com/):
o RHBA-2006:0505 - clumanager bug fix update
o RHBA-2006:0565 - piranha bug fix update
Related Documentation
The following related documentation is available at
http://www.redhat.com/docs/manuals/csgfs/:
o Red Hat Cluster Suite Configuring and Managing a Cluster
(for Red Hat Cluster Suite 3)
12
Preface
o Release notes for Red Hat Cluster Suite 3
o Red Hat GFS 6.0 Administrator's Guide
o Release notes for Red Hat GFS 6.0
13
Red Hat Enterprise Linux 3 Cluster Suite Release Notes
Revision History
Revision 1.0-2.4 02 Fri Oct 25 2013 Rüdiger Landmann
Rebuild for Publican 4.0.0
Revision 1.0-2 Tue Jun 4 2013 Ruediger Landmann
Update some boilerplate text
Revision 1.0-1 Tue Jun 4 2013 Ruediger Landmann
Port to Publican 3
Index
F
feedback
- contact information for this manual, We Need Feedback!
H
help
- getting help, Do You Need Help?
14


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