Introducing Oracle Linux and Securing It With kspliceLF Events
Oracle Linux is expanding its share in the enterprise market. Not only as a RHEL compatible OS, it has variety of functions that will interest enterprise system admins. Ksplice is one of its attractive function, in this session we will show you how life is going to be easier patching security vulnerability without rebooting system using Ksplice.
This presentation was delivered at LinuxCon Japan 2016 by Fumiyasu Ishibashi
Presentation given at Config Management Camp 2018 in the Foreman track.
It gives brief introduction about Foreman Maintain tool which provides simplified upgrade process for foreman instance. Also, explains using this tool how you keep foreman up and running in healthy state.
Apache Kafka vs RabbitMQ: Fit For Purpose / Decision TreeSlim Baltagi
Kafka as a streaming data platform is becoming the successor to traditional messaging systems such as RabbitMQ. Nevertheless, there are still some use cases where they could be a good fit. This one single slide tries to answer in a concise and unbiased way where to use Apache Kafka and where to use RabbitMQ. Your comments and feedback are much appreciated.
Introducing Oracle Linux and Securing It With kspliceLF Events
Oracle Linux is expanding its share in the enterprise market. Not only as a RHEL compatible OS, it has variety of functions that will interest enterprise system admins. Ksplice is one of its attractive function, in this session we will show you how life is going to be easier patching security vulnerability without rebooting system using Ksplice.
This presentation was delivered at LinuxCon Japan 2016 by Fumiyasu Ishibashi
Presentation given at Config Management Camp 2018 in the Foreman track.
It gives brief introduction about Foreman Maintain tool which provides simplified upgrade process for foreman instance. Also, explains using this tool how you keep foreman up and running in healthy state.
Apache Kafka vs RabbitMQ: Fit For Purpose / Decision TreeSlim Baltagi
Kafka as a streaming data platform is becoming the successor to traditional messaging systems such as RabbitMQ. Nevertheless, there are still some use cases where they could be a good fit. This one single slide tries to answer in a concise and unbiased way where to use Apache Kafka and where to use RabbitMQ. Your comments and feedback are much appreciated.
Monitoring Kubernetes with Prometheus (Kubernetes Ireland, 2016)Brian Brazil
Prometheus is a next-generation monitoring system. Since being publicly announced last year it has seen wide-spread interest and adoption. This talk will look at the concepts behind monitoring with Prometheus, and how to use it with Kubernetes which has direct support for Prometheus.
기존에 저희 회사에서 사용하던 모니터링은 Zabbix 였습니다.
컨테이너 모니터링 부분으로 옮겨가면서 변화가 필요하였고, 이에 대해서 프로메테우스를 활용한 모니터링 방법을 자연스럽게 고민하게 되었습니다.
이에 이영주님께서 테크세션을 진행하였고, 이에 발표자료를 올립니다.
5개의 부분으로 구성되어 있으며, 세팅 방법에 대한 내용까지 포함합니다.
01. Prometheus?
02. Usage
03. Alertmanager
04. Cluster
05. Performance
Infrastructure Saturday 2011 - Understanding PKI and Certificate Serviceskieranjacobsen
In every organization, there is a growing need for a strong well-designed public key infrastructure solution and in many of these; Active Directory Certificate Services will be used. This session will guide you through a solution based on best practice, shed some light on common issues encountered and some shortcuts to assist in management with PowerShell.
Installation of Grafana on linux ; connectivity with Prometheus database , installation of Prometheus ; Installation of node_exporter ,Tomcat-exporter ; installation and configuration of alert manager .. Detailed step by step installation and working
In this session, we will start with the importance of monitoring of services and infrastructure. We will discuss about Prometheus an opensource monitoring tool. We will discuss the architecture of Prometheus. We will also discuss some visualization tools which can be used over Prometheus. Then we will have a quick demo for Prometheus and Grafana.
리눅스 pacemaker 기반의 High Availaiblity 구성방법에 대해 설명합니다. pacemaker를 사용하는 다른 리눅스 기반도 구성이 가능합니다.
Pacemaker 기반 Linux High Availability 입문용으로는 적합하지 않을 수 있습니다. Pacemaker 기반 Linux High Availability를 한 번도 설치 및 구성을 하지 않은 리눅스 관리자라면 설치 문서를 먼저 참고하십시오.
RHEL7 및 CentOS 7을 중심으로 레드햇 계열의 리눅스에 적합한 내용으로 작성되었습니다.
Apache kafka performance(throughput) - without data loss and guaranteeing dat...SANG WON PARK
Apache Kafak의 성능이 특정환경(데이터 유실일 발생하지 않고, 데이터 전송순서를 반드시 보장)에서 어느정도 제공하는지 확인하기 위한 테스트 결과 공유
데이터 전송순서를 보장하기 위해서는 Apache Kafka cluster로 partition을 분산할 수 없게되므로, 성능향상을 위한 장점을 사용하지 못하게 된다.
이번 테스트에서는 Apache Kafka의 단위 성능, 즉 partition 1개에 대한 성능만을 측정하게 된다.
향후, partition을 증가할 경우 본 테스트의 1개 partition 단위 성능을 기준으로 예측이 가능할 것 같다.
An overview of the Kubernetes architectureIgor Sfiligoi
This talk provides a 101 introdution to Kubernetes from a user point of view.
Aimed at service providers, it was presented at the GPN Annual Meeting 2019. https://conferences.k-state.edu/gpn/
Monitoring Kubernetes with Prometheus (Kubernetes Ireland, 2016)Brian Brazil
Prometheus is a next-generation monitoring system. Since being publicly announced last year it has seen wide-spread interest and adoption. This talk will look at the concepts behind monitoring with Prometheus, and how to use it with Kubernetes which has direct support for Prometheus.
기존에 저희 회사에서 사용하던 모니터링은 Zabbix 였습니다.
컨테이너 모니터링 부분으로 옮겨가면서 변화가 필요하였고, 이에 대해서 프로메테우스를 활용한 모니터링 방법을 자연스럽게 고민하게 되었습니다.
이에 이영주님께서 테크세션을 진행하였고, 이에 발표자료를 올립니다.
5개의 부분으로 구성되어 있으며, 세팅 방법에 대한 내용까지 포함합니다.
01. Prometheus?
02. Usage
03. Alertmanager
04. Cluster
05. Performance
Infrastructure Saturday 2011 - Understanding PKI and Certificate Serviceskieranjacobsen
In every organization, there is a growing need for a strong well-designed public key infrastructure solution and in many of these; Active Directory Certificate Services will be used. This session will guide you through a solution based on best practice, shed some light on common issues encountered and some shortcuts to assist in management with PowerShell.
Installation of Grafana on linux ; connectivity with Prometheus database , installation of Prometheus ; Installation of node_exporter ,Tomcat-exporter ; installation and configuration of alert manager .. Detailed step by step installation and working
In this session, we will start with the importance of monitoring of services and infrastructure. We will discuss about Prometheus an opensource monitoring tool. We will discuss the architecture of Prometheus. We will also discuss some visualization tools which can be used over Prometheus. Then we will have a quick demo for Prometheus and Grafana.
리눅스 pacemaker 기반의 High Availaiblity 구성방법에 대해 설명합니다. pacemaker를 사용하는 다른 리눅스 기반도 구성이 가능합니다.
Pacemaker 기반 Linux High Availability 입문용으로는 적합하지 않을 수 있습니다. Pacemaker 기반 Linux High Availability를 한 번도 설치 및 구성을 하지 않은 리눅스 관리자라면 설치 문서를 먼저 참고하십시오.
RHEL7 및 CentOS 7을 중심으로 레드햇 계열의 리눅스에 적합한 내용으로 작성되었습니다.
Apache kafka performance(throughput) - without data loss and guaranteeing dat...SANG WON PARK
Apache Kafak의 성능이 특정환경(데이터 유실일 발생하지 않고, 데이터 전송순서를 반드시 보장)에서 어느정도 제공하는지 확인하기 위한 테스트 결과 공유
데이터 전송순서를 보장하기 위해서는 Apache Kafka cluster로 partition을 분산할 수 없게되므로, 성능향상을 위한 장점을 사용하지 못하게 된다.
이번 테스트에서는 Apache Kafka의 단위 성능, 즉 partition 1개에 대한 성능만을 측정하게 된다.
향후, partition을 증가할 경우 본 테스트의 1개 partition 단위 성능을 기준으로 예측이 가능할 것 같다.
An overview of the Kubernetes architectureIgor Sfiligoi
This talk provides a 101 introdution to Kubernetes from a user point of view.
Aimed at service providers, it was presented at the GPN Annual Meeting 2019. https://conferences.k-state.edu/gpn/
Vladimir Melnik from Tucha Cloud Services in the Ukraine, another company running IaaS services on Apache Cloudstack. Vladimir is the original author and maintainer of Monkeyman, a perl5 framework for Apache CloudStack automation
CloudStack - Top 5 Technical Issues and TroubleshootingShapeBlue
Cloudstack Top 5 technical issues and troubleshooting. Cloudstack is a mature product in use by companies world-wide. While being associated with CloudStack development for over 5 years, Abhi has come across some technical issues that once in a while affect the CloudStack deployment. This presentation is an effort to put together top 5 such issues, analyze their symptoms, see them from CloudStack architecture perspective and from the distributed nature of cloud orchestration, then look at ways to avoid them and finally be able to troubleshoot if they occur.
VMworld 2013: vSphere Data Protection (VDP) Technical Deep Dive and Troublesh...VMworld
VMworld 2013
Darryl Hing, VMware Canada
Jacy Townsend, VMware
Learn more about VMworld and register at http://www.vmworld.com/index.jspa?src=socmed-vmworld-slideshare
Caching and tuning fun for high scalabilityWim Godden
Caching has been a 'hot' topic for a few years. But caching takes more than merely taking data and putting it in a cache : the right caching techniques can improve performance and reduce load significantly. But we'll also look at some major pitfalls, showing that caching the wrong way can bring down your site. If you're looking for a clear explanation about various caching techniques and tools like Memcached, Nginx and Varnish, as well as ways to deploy them in an efficient way, this talk is for you.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
4. ACS error codes
-
Client error codes
public static final int MALFORMED_PARAMETER_ERROR = 430;
public static final int PARAM_ERROR = 431;
public static final int UNSUPPORTED_ACTION_ERROR = 432;
public static final int PAGE_LIMIT_EXCEED = 433;
-
Server error codes
public static final int INTERNAL_ERROR = 530;
public static final int ACCOUNT_ERROR = 531;
public static final int ACCOUNT_RESOURCE_LIMIT_ERROR= 532;
public static final int INSUFFICIENT_CAPACITY_ERROR = 533;
public static final int RESOURCE_UNAVAILABLE_ERROR = 534;
public static final int RESOURCE_ALLOCATION_ERROR = 534;
public static final int RESOURCE_IN_USE_ERROR = 536;
public static final int NETWORK_RULE_CONFLICT_ERROR = 537
Insert Presentation Title Here
5. Debugging tips in CS development
- Generally use eclipse to attach debugger to the management server
- SystemVM agents
- kill the running process
- add -Xdebug Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=878
7 to /usr/local/cloud/systemvm/_run.sh
- open port 8787
- start the java process - ./run.sh
- Usage
- To check if events are being logged in check usage_events in
cloud DB
- To start usage server in dev setup
mvn -pl usage -Drun -Dpid=$$
Insert Presentation Title Here
6. SSVM troubleshooting
-
Login
-
-
-
ssh -i /root/.ssh/id_rsa.cloud -p 3922 root@ip where ip is link
local on XenServer and private ip in case of VMware
Script to check the health of SSVM
- /usr/local/cloud/systemvm/ssvm-check.sh
Check if port 8250 is open
In global configuration value of ‘host’ is right set to the management
server ip
Check agent status – service cloud status
Logs can be found at
- /var/log/cloud/cloud.log
Template status can be found in template_store_ref DB table
Insert Presentation Title Here
7. And a couple more …
-
DB Encryption
To decrypt the database secret key use the following
java -classpath /usr/share/java/cloud-jasypt-1.8.jar
org.jasypt.intf.cli.JasyptPBEStringDecryptionCLI decrypt.sh
input=<encryptedValue> password=<secretKey> verbose=false
(where secretKey is the value in /etc/cloudstack/management/key file)
-
GUI timeout
-
-
Default timeout is 15 minutes
To increase the timeout edit
/usr/share/cloud/management/webapps/client/WEB-INF/web.xml to add
<session-config>
<session-timeout>60</session-timeout>
</session-config>
Restart the server
Insert Presentation Title Here
8. ACS Ports
-
-
-
-
Management Server
- 8080: Primary GUI / Authentication API Port
- 8096: User/Client Management Server (unauthenticated)
- 8787: CloudStack (Tomcat) debug socket
- 9090: Cloudstack Management Cluster Interface
SystemVM Agent
- 3922: SystemVM to Management (secure)
- 8250: SystemVM to Management (unsecure)
MySQL Server
- 3306: MySQL Server
Hypervisor
- 22/443: XenServer
- 22: KVM
- 443: vCenter
7080: AWS API server
Insert Presentation Title Here
10. ACS Administrator
Install, Configuration & Deployment
Log analysis
Important Global Config Parameters
Best Practices
Reuse of Hypervisors
Cloud database
Troubleshooting CloudStack
11. Install ,Configuration & Deployment Issues
? Failed to login to ACS Management server
4.2 requires Min 2 GB RAM
Redeploy DB and start cloudstack-setup-management
? Issue with Instances in isolated network
VLAN Trunking in Switch port configuration
? Failed to deploy instances
Insufficient resources : Management server log analysis
Troubleshooting CloudStack
12. Install ,Configuration & Deployment Issues
? Failed to add host
XCP host – Copy Echo plugin
Host License
Compatible host while creating the cluster of hosts
? Host/Storage pool in avoid set
Reachability issues
Timeout
Capacity of the storage pool / Host
Alert state
? Move XS hosts from Alert state
Unmanage the cluster with the affected host.
Clear the host tags of the affected host.
xe host-param-clear param-name=tags uuid=<UUID of affected host>
Manage the cluster with the affected host.
Troubleshooting CloudStack
13. Install ,Configuration & Deployment Issues
? Host in Alert State
Monitor Host Root Disk usage
?
Host/Storage pool in avoid set
Reachability issues
Timeout
Capacity of the storage pool / Host
Alert state
? Move XS hosts from Alert state
Unmanage the cluster with the affected host.
Clear the host tags of the affected host.
xe host-param-clear param-name=tags uuid=<UUID of affected host>
Manage the cluster with the affected host.
Troubleshooting CloudStack
15. Global Config Parameters
expunge.delay
Determines how long (in seconds) to wait before actually
expunging destroyed vm. The default value = the default value of
expunge.interval
60
expunge.workers
The interval (in seconds) to wait before running the expunge
thread.
Number of workers performing expunge
network.gc.interval
Seconds to wait before checking for networks to shutdown
600
network.gc.wait
Time (in seconds) to wait before shutting down a network that's
not in used
600
pool.storage.allocated.capacity.disablethreshold
Percentage (as a value between 0 and 1) of allocated storage
utilization above which allocators will disable using the pool for
low allocated storage available.
secstorage.allowed.internal.sites
Comma separated list of cidrs internal to the datacenter that can
host template download servers, please note 0.0.0.0 is not a valid
site
wait
Time in seconds to wait for control commands to return
vmware.vcenter.session.timeout
integration.api.port
VMware client timeout in seconds
Defaul API port
The interval (in seconds) to wait before running the storage
cleanup thread.
expunge.interval
storage.cleanup.interval
Troubleshooting CloudStack
60
1
1
1800
12000
8096
86400
16. Best Practises
Switch port configurations ( VLANs must be trunked).
Restrict the IP addresses which can access storage to avoid data loss .
Monitor host disk space .
All hosts must be 64-bit and must support HVM (Intel-VT or AMD-V enabled). All Hosts within a
Cluster must be homogeneous.
The volumes used for Primary and Secondary storage should be accessible from Management
Server and the hypervisors. These volumes should allow root users to read/write data. These
volumes must be for the exclusive use of CloudStack and should not contain any data
With Advanced Networking, separate subnets must be used for private and public networks
The Management Servers communicate with the XenServers on ports 22 (ssh) and 80 (HTTP).
The Management Servers communicate with VMware vCenter servers on port 443 (HTTPs).
The Management Servers communicate with the KVM servers on port 22 (ssh).
Troubleshooting CloudStack
17. Reusing Hypervisors
•
•
•
•
•
•
•
xe vm-uninstall --multiple –force
Unmount Storage
xe vif-unplug uuid=<uuid>
xe vif-destroy uuid=<uuid>
xe network-destroy uuid=<cloud link Local uuid>
sh /opt/xensource/bin/cloud-clean-vlan.sh
Disable cloud tags created on host
•
•
•
•
Xenserver
Vmware
Delete all instances
Delete Templates
Unmount Datastores
Remove all cloud networks
Troubleshooting CloudStack
21. Get Involved
Web: http://cloudstack.apache.org/
Mailing Lists: cloudstack.apache.org/mailing-lists.html
IRC: irc.freenode.net: 6667 #cloudstack
Twitter: @cloudstack
LinkedIn: www.linkedin.com/groups/CloudStack-Users-Group-3144859
If it didn’t happen on the mailing list, it didn’t happen.
Troubleshooting CloudStack