Trading Technologies International, Inc.

Jeffrey S Richards

Frederick J Anguiano

Praveen Kannan

Techniques relating to buffers are disclosed. A first buffer may be for storing a number of elements for processing. Disclosed techniques include providing a second buffer for storing elements for adding to the first buffer, and adding an obtained element to the second buffer when the number of elements in the first buffer is greater than a first threshold. These techniques can prevent overrun of the first buffer while allowing the obtained element to be added to a buffer.

Buffering elements for processing

A data center, DC includes applications that are controllable by one or more computing entities external to the DC. However, when the DC becomes unavailable to the computing entities, the applications are no longer controllable by the computing entities, which is undesirable. Disclosed techniques include the DC determining, based on an indication that the apps are no longer controllable by the computing entities, that the applications are to operate in a disaster recovery mode. Disclosed techniques include causing an indication that the applications at the DC are to operate in the disaster recovery mode to be communicated to applications that are already executing at the DC when the determination is made and to applications that start to execute at the DC after the determination is made. Disclosed techniques also include a further DC providing a failover for the DC.

Actions taken by an islanded data center

Techniques for determining an availability of a data center, DC, to one or more computing entities external to the DC are described. A DC may, for example, operate one or more applications which are controllable by one or more external computing entities. Disclosed techniques include determining a first status of a first set of one or more communications connections between the DC and a second DC, and a second status of a second set of one or more communications connections between the DC and a third DC. Disclosed techniques include determining an indication of the availability of the DC based on the first status and the second status. Disclosed techniques may involve taking an action responsive to determining that the DC is unavailable, for example, causing applications running at the DC to operate in a disaster recovery mode, and/or failing over functionality of the DC to a failover DC.

Determining an availability of a data center

A disposable face mask includes an upper portion of the face mask and a lower portion of the face mask, the upper portion and lower portion of the face masks each adjoin monolithically formed therewith face mask straps defined by perforations in a web of material used to form the face mask and straps, wherein the perforations allow the straps to be partially separated and utilized for securing said face mask to a wearer's face. The disposable face mask may be made by perforating patterns into a web of materials to define the face mask straps and face mask body that are formed monolithically from the web of materials. The face masks may be wound on a roll for dispensing by tearing off from the roll and then separating the straps at the perforations. Alternatively, the face mask borders may be cut-through to allow dispensing of the face masks individually from bulk packaging, where the face mask is removed from the package and the straps are separated at the perforations to allow the face mask to be secured to the wearer's face by tying the straps behind the wearer's head.

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Aurora, IL, United States of America

Jeffrey S Richards