Abstract: Various systems and methods for performing clustering operations in distributed systems are disclosed. For example, one method involves performing a clustering operation that uses a virtual machine (VM). This VM is hosted by a first node. The method involves receiving an indication that indicates a migration of the virtual machine from the first node to a second node. The method also involves, in response to a receipt of this indication, suspending performance of the clustering operation using the virtual machine. The method can also involve resuming performance of the clustering operation using the virtual machine in response to receiving an indication of a successful migration of this virtual machine.

Abstract: A computer-implemented method for proactively evaluating failover nodes prior to the occurrence of failover events may include (1) identifying at least one primary node that services at least one application, (2) identifying at least one failover node designated to service the application if the primary node were to fail, (3) prior to detecting failure of the primary node, proactively evaluating the failover node's ability to service the application if the primary node were to fail, and then (4) in response to determining that the failover node would be unable to adequately service the application if the primary node were to fail, proactively performing at least one corrective action that would cause the application to be adequately serviced if the primary node were to fail. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Various systems and methods for performing clustering operations in distributed systems are disclosed. For example, one method involves performing a clustering operation that uses a virtual machine (VM). This VM is hosted by a first node. The method involves receiving an indication that indicates a migration of the virtual machine from the first node to a second node. The method also involves, in response to a receipt of this indication, suspending performance of the clustering operation using the virtual machine. The method can also involve resuming performance of the clustering operation using the virtual machine in response to receiving an indication of a successful migration of this virtual machine.