Abstract: The technologies described herein are generally directed toward managing system services based on node maintenance events. For instance, a system can identify a maintenance event that implicates a node of a cluster of nodes. The system can further notify a service that the node is to be in a maintenance mode based on the maintenance event, with the node being at least partially not operative in the maintenance mode, and with the service subscribing to the maintenance event. The system can further, based on a completion event that implicates the node with respect to the maintenance event, switch the node from the maintenance mode to an operational mode in which the node is operative.

Abstract: The described technology is generally directed towards dynamically, and automatically, identifying, for a current issue, a previously implemented investigation having the same, or substantially similar content/conditions to the current issue, and further implementing knowledge derived during the prior investigation to determine a cause of the current issue. In the event of implementing a scope of investigation of the prior investigation does not enable the cause of the current issue to be resolved, expanding the scope of the current investigation to enable the cause of the current issue to be identified. The current issue can occur on a node, a node service, etc., and the respective scope of investigation generates a logset identifying one or more conditions of operation of the node when the current issue occurred, and devices/services to be reviewed.

Abstract: A process for enriching the fraction of 2,6-diisopropylnaphthalene contained in a quantity of mixed dialkylated naphthalenes. The mixed dialkylated naphthalenes are contacted with an adsorbant bed containing one or more molecular sieves which demonstrate shape selective preference for the 2,6-diisopropylnaphthalene isomer over other dialkylated naphthalenes. The adsorbant bed is then contacted with a desorbant capable of desorbing the 2,6-diisopropylnaphthalene from the pores of the adsorbant.