Questions tagged [failovercluster]

Microsoft Failover Clusters

A failover cluster is a group of independent computers that work together to increase the availability and scalability of clustered roles (formerly called clustered applications and services). The clustered servers (called nodes) are connected by physical cables and by software. If one or more of the cluster nodes fail, other nodes begin to provide service (a process known as failover). In addition, the clustered roles are proactively monitored to verify that they are working properly. If they are not working, they are restarted or moved to another node. Failover clusters also provide Cluster Shared Volume (CSV) functionality that provides a consistent, distributed namespace that clustered roles can use to access shared storage from all nodes. With the Failover Clustering feature, users experience a minimum of disruptions in service. You can manage failover clusters by using the Failover Cluster Manager snap-in and the Failover Clustering Windows PowerShell cmdlets. You can also use the tools in File and Storage Services to manage file shares on file server clusters.

Feature Description Reference - Failover Clustering Overview -

Some Resources for Windows 2008 R2 & Windows 2012 R2 -

Failover Cluster Provider Reference MSDN -

Failover Cluster Cmdlet Reference [PowerShell] - - https://technet.microsoft.com/en-us/library/ee461009.aspx

Cluster Object Private Properties Reference MSDN -

WUtils MSCluster WMI Samples -

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ActiveMQ: How to handle broker failovers while using temporary queues

On my JMS applications we use temporary queues on Producers to be able to receive replies back from Consumer applications. I am facing exactly same issue on my end as mentioned in this thread:…
anubhava
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Leader election and Failover detection java library

I am looking for a library that provides the most basic clustering requirements. This library should hopefully come detached from a full blown state replication solution (ZooKeeper), since the state replication requirements are very…
itaifrenkel
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How to make active services highly available?

I know that with Network Load Balancing and Failover Clusteringwe can make passive services highly available. But what about active apps? Example: One of my apps retrieves some content from a external resource in a fixed interval. I have imagined…
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Windows Services -- High availability scenarios and design approach

Let's say I have a standalone windows service running in a windows server machine. How to make sure it is highly available? 1). What are all the design level guidelines that you can propose? 2). How to make it highly available like…
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PowerShell: How to return all the VMs in a Hyper-V Cluster

I'm a first time programmer with PowerShell. Running on Windows Server 2012. I'm trying to get a list of all VM's on my failover cluster and am working with this: $clusterNodes = Get-ClusterNode | select Name ForEach($item in…
Paul S.
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Is Redis a better option for SignalR scale out over SQL Server, and do each support failover?

In David Fowler's blog, SQL Server has been added to the list of scale out providers for service bus. I am in the process of implementing Redis on our Windows servers. Based on what I know about Redis, I'm guessing it will be significantly faster…
ElHaix
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How to convert Volume GUID of the mount point to actual path?

I'm using this code to get Path,VolumeLabel,TotalSize,FreeSpace: gwmi -ComputerName $ComputerName -namespace root\MSCluster MSCluster_DiskPartition -Credential $cred -Authentication PacketPrivacy | Format-Table Path, VolumeLabel, TotalSize,…
ALIENQuake
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How to get Test-cluster output in object format?

The command Test-Cluster is producing an output as a xml and htm file. $v = test-cluster -Node w16-sqlcA,w16-sqlcB -Include "Storage" -Force -Disk $csv -Verbose Seems like only way to get the detailed result is by parsing the xml. I have to get the…
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RedShift Node Failover

I have a RedShift cluster of 4 nodes. When one of the nodes goes down, will the entire cluster become unavailable? If yes - for how long? When the cluster gets back - is it returned to exactly the same point it was before the failure, or the data…
diemacht
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"Unknown delivery tag" from RabbitMQ when ack'ing a message in a cluster with replicated queues

We've been using Rabbit successfully for about a year. Recently have upgraded to v2.6.1, because we want to use clusters with replicated message queues. My testing has hit a puzzling behavior that smells like a Rabbit bug to me. The test that…
Steve Rehrauer
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Why the select -first 1 doesn't work in this PowerShell command?

I'm testing in a Windows Failover cluster environment. Below is my code. PS C:\Users\administrator.DEV> Get-ClusterResource *disk* Name State OwnerGroup ResourceType ---- ----- ---------- ------------ Cluster…
Fajela Tajkiya
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Kubernetes master high availability or replication configuration

Hi all we are looking for practically and tested guide or reference for kubernetes master high availability or other solution for master node fail over.
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tomcat session replication without multicast

i am planning to use 2 dedicated root servers rented at a hosting provider. those machines will run tomcat 6 in a cluster. if i will add additional machines later on - it is unlikely that they will be accessible with multicast, because they will be…
Andreas Petersson
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Is tomcat clustering only way for session replication?

I tested Tomcat Clustering for session replication on ubuntu servers with apache as front end load balancers. From my testing experience I say it's better not using tomcat clustering but running each node as standalone not knowing one another…
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Decentralized Clustering library for Java

I am trying to develop a network safe decentralized replication based distributed system. I am looking for a java library with following requirements: Library should be able to initialize the n nodes in a decentralized fashion (no master or slave).…
Codifier
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