Abstract: A computer-implemented method for determining the healthiness of nodes within computer clusters may include (1) identifying a computer cluster that includes a plurality of nodes configured to provide substantially continuous availability of at least one application, (2) identifying at least one operating system kernel installed on at least one of the nodes, (3) configuring the operating system kernel to (a) asynchronously monitor performance of the node and (b) determine, based at least in part on the node's performance, whether the node is sufficiently healthy to execute the application, (4) receiving a notification from the operating system kernel that indicates that the node is not sufficiently healthy to execute the application, and then (5) performing at least one action configured to enable the computer cluster to provide substantially continuous availability of the application despite the unhealthy node. Various other systems, methods, and computer-readable media are also disclosed.

Abstract: A computer-implemented method for managing sub-clusters within dependent clustered computing systems subsequent to partition events may include (1) identifying a first computing cluster and a second computing cluster, (2) determining that the first computing cluster depends on the second computing cluster, (3) detecting a partition event that partitions the first computing cluster into multiple sub-clusters, (4) determining, in response to detecting the partition event, whether the second computing cluster is partitioned into multiple sub-clusters, and (5) making, based at least in part on determining whether the second computing cluster is partitioned into multiple sub-clusters, a fencing decision for the multiple sub-clusters of the first computing cluster. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A computer-implemented method for fault recovery in multi-tier applications may include: 1) identifying a plurality of clusters, 2) identifying a multi-tier application that includes a plurality of components, each cluster within the plurality of clusters hosting a component, 3) identifying a fault of a first component within the plurality of components on a first cluster within the plurality of clusters, the fault requiring a first recovery action, 4) identifying at least one dependency relationship involving the first component and a second component within the plurality of components on a second cluster within the plurality of clusters, 5) determining, based on the fault and the dependency relationship, that the second component requires a second recovery action to ensure that the multi-tier application operates correctly, and 6) performing the second recovery action on the second component. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A computer-implemented method for fault recovery in multi-tier applications may include: 1) identifying a plurality of clusters, 2) identifying a multi-tier application that includes a plurality of components, each cluster within the plurality of clusters hosting a component, 3) identifying a fault of a first component within the plurality of components on a first cluster within the plurality of clusters, the fault requiring a first recovery action, 4) identifying at least one dependency relationship involving the first component and a second component within the plurality of components on a second cluster within the plurality of clusters, 5) determining, based on the fault and the dependency relationship, that the second component requires a second recovery action to ensure that the multi-tier application operates correctly, and 6) performing the second recovery action on the second component. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A method for provisioning a plurality of heterogeneous operating systems on a plurality of target hosts that includes for each of the plurality of target hosts, obtaining a type of operating system (OS) to be provisioned on the target host, populating an OS profile model based on the type of operating system obtained, activating a deployment service based on the type of operating system, and provisioning the target host using a deployment service and the OS profile model.