摘要:
A replication track is a designated group of transactions that are to be replicated at a destination database in a way that, with respect to any other transaction in the replication track, preserves transactional dependency. Further, transactions in a replication track can be replicated at the destination database without regard to transactional dependency of other transactions in another track. This facilitates concurrent parallel replication of transactions of different tracks. Replicating data in this manner is referred to herein as track replication. An application may request execution of transactions and designate different tracks for transactions.
摘要:
A replication track is a designated group of transactions that are to be replicated at a destination database in a way that, with respect to any other transaction in the replication track, preserves transactional dependency. Further, transactions in a replication track can be replicated at the destination database without regard to transactional dependency of other transactions in another track. This facilitates concurrent parallel replication of transactions of different tracks. Replicating data in this manner is referred to herein as track replication. An application may request execution of transactions and designate different tracks for transactions.
摘要:
A multi-function impactor for use with an orthopaedic implant, such as a knee joint, is described. The head of the impactor has a pair of curved recesses for mating with condylar parts of a femoral implant and flat faces for mating with a tibial implant. An extended formation is also provided for use with the inter-condylar notch of the femoral implant. A v-shaped notch in the extended formation is also provided to impact a tibial insert. The impactor can be made from a single moulded plastics part.
摘要:
A cluster manager is configured to manage a plurality of copies of a mid-tier database as a mid-tier database cluster. The cluster manager may concurrently manage a backend database system. The cluster manager is configured to monitor for and react to failures of mid-tier database nodes. The cluster manager may react to a mid-tier database failure by, for example, assigning a new active node, creating a new standby node, creating new copies of the mid-tier databases, implementing new replication or backup schemes, reassigning the node's virtual address to another node, or relocating applications that were directly linked to the mid-tier database to another host. Each node or an associated agent may configure the cluster manager to behave in this fashion during initialization, based on common cluster configuration information. Each copy of the mid-tier database may be, for example, a memory resident database. Thus, a node must reload the entire database into memory to recover a copy of the database.
摘要:
A multi-function impactor for use with an orthopaedic implant, such as a knee joint, is described. The head of the impactor has a pair of curved recesses for mating with condylar parts of a femoral implant and flat faces for mating with a tibial implant. An extended formation is also provided for use with the inter-condylar notch of the femoral implant. A v-shaped notch in the extended formation is also provided to impact a tibial insert. The impactor can be made from a single moulded plastics part.
摘要:
A cluster manager is configured to manage a plurality of copies of a mid-tier database as a mid-tier database cluster. The cluster manager may concurrently manage a backend database system. The cluster manager is configured to monitor for and react to failures of mid-tier database nodes. The cluster manager may react to a mid-tier database failure by, for example, assigning a new active node, creating a new standby node, creating new copies of the mid-tier databases, implementing new replication or backup schemes, reassigning the node's virtual address to another node, or relocating applications that were directly linked to the mid-tier database to another host. Each node or an associated agent may configure the cluster manager to behave in this fashion during initialization, based on common cluster configuration information. Each copy of the mid-tier database may be, for example, a memory resident database. Thus, a node must reload the entire database into memory to recover a copy of the database.
摘要:
A variable friction disc brake for use with a C-arm x-ray imaging apparatus interposed between the support arm and yoke of the imaging apparatus. The variable friction disc is generally comprised of ring having a gap, width both sides of said gap having apertures therethrough such that a bolt may be inserted into said apertures and used to adjust the width of the gap, and the tension on the ring.