Wackamole software ensures high availability of clusters.
Wackamole is a unique and innovative application that provides assistance in making a cluster highly available. It is specifically designed to manage a pool of virtual IPs that must be available to the outside world at all times. One of the core functions of Wackamole is to ensure that at any given time, only one machine within the cluster is listening on each virtual IP address that it manages.
Wackamole is capable of discovering any machine within the cluster that is not alive and within seconds ensure that other machines acquire their public IPs. Another feature of Wackamole is its capacity to distribute the number of IPs available on every machine within the cluster. This ensures that there is no overloading of machines and that the entire cluster operates in a balanced manner.
The application is designed for use on a cluster of connected machines that share the same LAN. It utilizes a pool of virtual (non-default) IP addresses that should always be available. Wackamole always ensures that each IP address within the pool is assigned as a virtual IP to a specific machine in the cluster. It ensures that no single IP address is held by more than one machine and every IP address is always available.
Wackamole enables you to run multiple DNS RR records without worrying about any machine crashes. If any machine crashes, the virtual IP addresses it was responsible for will be managed by the remaining machines in the cluster. Wackamole operates in a peer-to-peer mode within the cluster, which is unique among other high-availability software.
Other similar products employ a "VIP" method, where a networking appliance assumes a single virtual IP address and "maps" requests to that IP address to the machines in the cluster. This networking appliance is a single point of failure by itself, which is why most industry solutions incorporate classic master-slave failover or bonding between two identical appliances.
These networking appliances could be a simple commodity server running user applications, operating system features like IPVS under Linux or similar, or hardware networking components like Foundry ServerIron, Cisco LocalDirector, or other content-aware switches, Cisco Arrowpoint content switched, hardware products from Extreme Networks' load-balancers, among others.
In the latest version of the application, Wackamole has fixed the issue where it was previously unable to operate on Solaris for ethernet devices with numbers in their device name (like e1000g).
Wackamole is capable of discovering any machine within the cluster that is not alive and within seconds ensure that other machines acquire their public IPs. Another feature of Wackamole is its capacity to distribute the number of IPs available on every machine within the cluster. This ensures that there is no overloading of machines and that the entire cluster operates in a balanced manner.
The application is designed for use on a cluster of connected machines that share the same LAN. It utilizes a pool of virtual (non-default) IP addresses that should always be available. Wackamole always ensures that each IP address within the pool is assigned as a virtual IP to a specific machine in the cluster. It ensures that no single IP address is held by more than one machine and every IP address is always available.
Wackamole enables you to run multiple DNS RR records without worrying about any machine crashes. If any machine crashes, the virtual IP addresses it was responsible for will be managed by the remaining machines in the cluster. Wackamole operates in a peer-to-peer mode within the cluster, which is unique among other high-availability software.
Other similar products employ a "VIP" method, where a networking appliance assumes a single virtual IP address and "maps" requests to that IP address to the machines in the cluster. This networking appliance is a single point of failure by itself, which is why most industry solutions incorporate classic master-slave failover or bonding between two identical appliances.
These networking appliances could be a simple commodity server running user applications, operating system features like IPVS under Linux or similar, or hardware networking components like Foundry ServerIron, Cisco LocalDirector, or other content-aware switches, Cisco Arrowpoint content switched, hardware products from Extreme Networks' load-balancers, among others.
In the latest version of the application, Wackamole has fixed the issue where it was previously unable to operate on Solaris for ethernet devices with numbers in their device name (like e1000g).
What's New
Version 2.1.4: N/A