Abstract: According to an aspect, a method for data placement in a distributed database includes obtaining access pattern information relating to end clients that requested access to data stored in a first regional quorum of replicas located within a first region, where the first regional quorum includes a first lead replica. The method includes identifying a placement algorithm from a configuration file associated with the distributed database, and executing the placement algorithm to generate a suggested placement for the data based on the obtained access pattern information, where the suggested placement includes a second regional quorum of replicas located in a second region different than the first region, and the second regional quorum includes a second lead replica. The method includes transmitting a migration request to the distributed database to transfer the data from the first regional quorum to the second regional quorum.

Abstract: According to an aspect, a method for data placement in a distributed database includes obtaining access pattern information relating to end clients that requested access to data stored in a first regional quorum of replicas located within a first region, where the first regional quorum includes a first lead replica. The method includes identifying a placement algorithm from a configuration file associated with the distributed database, and executing the placement algorithm to generate a suggested placement for the data based on the obtained access pattern information, where the suggested placement includes a second regional quorum of replicas located in a second region different than the first region, and the second regional quorum includes a second lead replica. The method includes transmitting a migration request to the distributed database to transfer the data from the first regional quorum to the second regional quorum.

Abstract: Embodiments are directed to providing a certificate extension to an authentication certificate, to validating an authentication certificate request and to implementing authentication certificates that include certificate extensions. In an embodiment, a computer system accesses an authentication certificate request that is to be sent to a validation server for validation and to a certificate authority for issuance of an authentication certificate. The computer system appends an extension to the authentication certificate request. The extension includes origination information about the authentication certificate. The computer system then sends the authentication certificate request with the appended extension to the validation server for validation.

Abstract: Embodiments are directed to providing a certificate extension to an authentication certificate, to validating an authentication certificate request and to implementing authentication certificates that include certificate extensions. In an embodiment, a computer system accesses an authentication certificate request that is to be sent to a validation server for validation and to a certificate authority for issuance of an authentication certificate. The computer system appends an extension to the authentication certificate request. The extension includes origination information about the authentication certificate. The computer system then sends the authentication certificate request with the appended extension to the validation server for validation.

Abstract: An advertising system including a client computer, and a promoter operative on the client to a) transmit a request for instructions to an advertising server via a communication channel, where the instructions includes any of links to advertisements and times associated with the links, b) receive the instructions therefrom, and c) execute the instructions.