Citrix Systems, Inc.

Vemula Srimithra

Aman Chaudhary

Rajesh Joshi

Vinay Shivananda

Raghav Somanahalli Narayana

Raghav S N

Arunkanth Abbigari

Swetha Garipally

Subrata Sarkar

Pradeep Gangishetty

Anuradha Gupta

Chandra Keerthi Reddy

Improving load distribution and consistency is provided. A device intermediary to clients and servers can maintain bit values indicative of server availability stored in indices arranged in various levels. A lowest level comprises indices corresponding to a list of servers repeated multiple times. Each index in a higher level maps to a set of indices in a lower level. The device can receive a request from a client to access a server. The device can identify an index in a highest level. The device can determine a second index in the highest level that is after the index in the highest level and has a bit value indicating server availability. The device can identify an index in the lowest level mapping to the second index in the highest level. The device can select a server corresponding to the index in the lowest level.

Consistent distribution using jump table assisted hybrid hash

Improving distribution of traffic from clients to servers is provided. A device intermediary to a plurality of clients and a plurality of servers can receive a request from a client of the plurality of clients to access one of the plurality of servers. The device can determine a hash value based on at least a portion of the request received from the client. The device can identify an index of a plurality of indices listing the plurality of servers repeated a plurality of times in a deterministic shuffled order. The device can apply a cache array routing protocol (CARP) algorithm to a second plurality of servers listed in a subset of the plurality of indices around the index. The device can select a server from the second plurality of servers with a highest hash value based on the application of the CARP algorithm.

Prime re-shuffled assisted carp

Described herein are systems and methods for updating configuration of a device based on changes to microservices. A device may receive a request via a desired state application programming interface (API) to update a configuration of the device to manage a desired set of instances of microservices. The device may identify from the request, a first set of endpoint information for each instance of a microservice in the desired set of instances of microservices. The first set of endpoint information may include an internet protocol (IP) address and port of an endpoint of a respective instance of the microservice. The first set or second set of endpoint information may include a weight for each instance of the microservice.

Systems and method updating ADC configuration with intended state using desired state API

Disclosed herein includes a system, a method, and a device for disabling services in a cluster. A master node of a plurality of nodes of a cluster can receive a disable instruction for a service of the cluster. The master node can transmit to the plurality of nodes a transition instruction to instruct the other nodes to stop accepting requests from one or more client devices for the service. The master node can receive, from each of the plurality of nodes, a client count value indicative of a number of current client connections from the one or more client devices to one or more respective nodes of the plurality of nodes. The master node can determine that the client count value is a zero value for each node of the plurality of nodes. The master node can transmit an out of service instruction to each node of the plurality of nodes to disable the service on the cluster.

Systems and methods for disabling services in a cluster

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Bengaluru, India

Vemula Srimithra