This document provides instructions for upgrading an ESM 6.8c high availability (HA) environment implemented on RHEL 6.5 or CentOS 6.5 to be compatible with RHEL 6.8 or CentOS 6.8. The upgrade procedure involves putting the secondary server in standby mode, upgrading the operating system, installing an HA upgrade package, and verifying the upgraded HA installation. Some configuration changes are needed to exclude certain packages from being upgraded. Route metric issues are also addressed. Support contact information is provided.
SAP HANA System and Storage Replication
Automation of Failover using SUSE Linux HA Extensions
Supported DR scenarios:
scale-up performance optimized
scale-up cost optimized
scale-up multi-tier (chained)
scale-up multi-tenant
scale-up mixed scenarios
outlook: Ramp-up for HANA DR scale-out
SAP HANA System and Storage Replication
Automation of Failover using SUSE Linux HA Extensions
Supported DR scenarios:
scale-up performance optimized
scale-up cost optimized
scale-up multi-tier (chained)
scale-up multi-tenant
scale-up mixed scenarios
outlook: Ramp-up for HANA DR scale-out
Launch Your Streaming Platforms in MinutesRoshan Dwivedi
The claim of launching a streaming platform in minutes might be a bit of an exaggeration, but there are services that can significantly streamline the process. Here's a breakdown:
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Examples of Services for Launching Streaming Platforms:
Muvi [muvi com]
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Overall, launching a streaming platform in minutes might not be entirely realistic, but these services can significantly speed up the process compared to building from scratch. Carefully consider your needs and budget when choosing the best option for you.
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May Marketo Masterclass, London MUG May 22 2024.pdfAdele Miller
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Navigating the Metaverse: A Journey into Virtual Evolution"Donna Lenk
Join us for an exploration of the Metaverse's evolution, where innovation meets imagination. Discover new dimensions of virtual events, engage with thought-provoking discussions, and witness the transformative power of digital realms."
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
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(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
Zoom is a comprehensive platform designed to connect individuals and teams efficiently. With its user-friendly interface and powerful features, Zoom has become a go-to solution for virtual communication and collaboration. It offers a range of tools, including virtual meetings, team chat, VoIP phone systems, online whiteboards, and AI companions, to streamline workflows and enhance productivity.
GraphSummit Paris - The art of the possible with Graph TechnologyNeo4j
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Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Graspan: A Big Data System for Big Code AnalysisAftab Hussain
We built a disk-based parallel graph system, Graspan, that uses a novel edge-pair centric computation model to compute dynamic transitive closures on very large program graphs.
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These analyses were used to augment the existing checkers; these augmented checkers found 132 new NULL pointer bugs and 1308 unnecessary NULL tests in Linux 4.4.0-rc5, PostgreSQL 8.3.9, and Apache httpd 2.2.18.
- Accepted in ASPLOS ‘17, Xi’an, China.
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The purpose of this presentation is to provide an overview of how you can use AI from XSLT, XQuery, Schematron, or XML Refactoring operations, the potential benefits of using AI, and some of the challenges we face.
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Software Engineering, Software Consulting, Tech Lead, Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Transaction, Spring MVC, OpenShift Cloud Platform, Kafka, REST, SOAP, LLD & HLD.
4. Upgrade Procedure
This document provides information on how to upgrade ESM 6.8c with the High Availability module
(HA) as implemented on:
l RHEL6.5 to support RHEL6.8
l CentOS 6.5 to support CentOS 6.8
The starting state (before upgrade) is assumed to be:
l ESM 6.8c with or without any patches
l HA implemented on the primary and secondary servers
l RHEL 6.5 , 6.6, or 6.7
l CentOS 6.5 or 6.7
To perform the upgrade:
1. Run the following chkconfig command as user root on both servers before you start the
upgrade:
chkconfig drbd off
To verify, run:
chkconfig --list drbd
drbd 0:off 1:off 2:off 3:off 4:off 5:off 6:off
This setting should persist.
2. Run the following command as user root on the secondary server to put it on standby:
crm_standby -v true
3. Run the following command as user root on the secondary server to take it offline:
service heartbeat stop
Upgrade HA Environment on ESM 6.8c to RHEL 6.8 or CentOS 6.8
Upgrade Procedure
HPE High Availability Module 6.8c Page 4 of 8
5. 4. On the secondary server:
a. Have yum configured to upgrade to the new operating system.
b. Add an exclude statement for the following packages to your CentOS/RHEL 6 base repo
configuration (/etc/yum.repos.d/CentOS-Base.repo), under the updates section. It
should look something like this for CentOS:
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$base
arch&repo=updates
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
exclude=heartbeat* corosync* pacemaker* drbd* resource-agents cluster-
glue*
It should look something like this for RHEL:
[updates]
name=RHEL-$releasever - Updates
mirrorlist=http://mirrorlist.rhel.org/?release=$releasever&arch=$basear
ch&repo=updates
#baseurl=http://mirror.rhel.org/rhel/$releasever/updates/$basearch/gpgc
heck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-RHEL-6
exclude=heartbeat* corosync* pacemaker* drbd* resource-agents cluster-
glue*
c. Upgrade the operating system to CentOS 6.8 or RHEL 6.8.
d. Make sure the operating system version is upgraded correctly.
e. Download the HA Upgrade from the HP Software Support Online site
(http://softwaresupport.hpe.com). The file name is HA_1.0_Update_For_6.8OS.tgz
Be sure to verify the upgrade file. HPE provides a digital public key to enable you to verify that
the signed software you received is indeed from HPE and has not been manipulated in any way
by a third party.Visit the following site for information and instructions:
https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=HPLi
nuxCodeSigning
f. Copy the HA upgrade to the server.
g. Install the HA upgrade using these commands:
tar -xzf <filename>.tgz
cd <filename>
yum -y update *.rpm
Upgrade HA Environment on ESM 6.8c to RHEL 6.8 or CentOS 6.8
Upgrade Procedure
HPE High Availability Module 6.8c Page 5 of 8
6. 5. Run the following command as user root on the secondary server to bring it online:
service heartbeat start
6. Repeat steps 3 through 5 on the primary server. It is expected that ESM will go down while the
primary server is updating.
7. Run the following command as user root on the secondary server to take it off standby:
crm_standby -D
8. Run the following command as user root, (on either server) to check the HA installation, as
described in the HA Users Guide, in the "Verify HA Installation” section:
/usr/lib/arcsight/highavail/bin/arcsight_cluster status
Note: If, after the upgrade, the disks will not connect, run arcsight_cluster diagnose to
clear the problem.
9. HPE recommends that you to upgrade your ESM installation to the latest patch. Copy that patch to
the primary server and install it as directed in the patch release notes.
Note: If you are planning to eventually upgrade to ESM 6.9.1 (with or without patches) , review the
HPE ArcSight ESM Support Matrix for the supported ESM upgrade paths and supported versions
of operating systems.
Route Metric Size Issue:
If the route metric for the route associated with the Service-IP interface is larger than that of the default
route this may cause pacemaker problems determining the netmask. One of the symptoms of this
problem is pairs of messages in /var/log/messages:
'....: info: RA output: (Service-IP:start:stderr) ERROR: Cannot use default
route w/o netmask...'
'...: ERROR: [/usr/lib64/heartbeat/findif -C] failed...'
If these messages appear, run the following steps on the primary and secondary servers:
1. Run this command:
ip route
Results should be several lines including some similar to the following (in this example, the Host IP
address is 12.34.156.78).
default via xxx.xxx.xxx.xxx dev ens32 proto static metric 100
12.34.128.0/19 dev ens32 proto kernel scope link src 12.34.156.78 metric
1000
2. Identify the Network ID and metric specified for:
a. Default
b. Host IP (this line should include the Host IP)
3. If the metric is larger for the Host IP route than for the default route, run the following commands
as user root:
ip route replace <CIDR and interface> metric <default route metric>
Upgrade HA Environment on ESM 6.8c to RHEL 6.8 or CentOS 6.8
Upgrade Procedure
HPE High Availability Module 6.8c Page 6 of 8
7. ip route delete <CIDR and interface> metric <host route metric>
In the example, these commands would be:
ip route replace 12.34.128.0/19 dev ens32 metric 100
ip route delete 12.34.128.0/19 dev ens32 metric 1000
Upgrade HA Environment on ESM 6.8c to RHEL 6.8 or CentOS 6.8
Upgrade Procedure
HPE High Availability Module 6.8c Page 7 of 8
8. Send Documentation Feedback
If you have comments about this document, you can contact the documentation team by email. If an
email client is configured on this system, click the link above and an email window opens with the
following information in the subject line:
Feedback on Upgrade HA Environment on ESM 6.8c to RHEL 6.8 or CentOS 6.8 (High
Availability Module 6.8c)
Just add your feedback to the email and click send.
If no email client is available, copy the information above to a new message in a web mail client, and send
your feedback to arc-doc@hpe.com.
We appreciate your feedback!
HPE High Availability Module 6.8c Page 8 of 8