Creatingupdating partition spool varspoolcyrusmail dating in swansea

When the shared memory cache does not contain a cached copy of the requested table data, the operations can also include filtering the received fourth electronic messages and storing a result of the filtering in the shared memory portion of the cache memory device.

When the shared memory cache does not contain a cached copy of the requested table data, the operations can additionally include transmitting, to the first TDCP client computer, one or more fifth electronic messages comprising a reference indicating a location where the result of the filtering is stored in the shared memory portion of the cache memory device in response to the first electronic message, [0008] When the shared memory cache does not contain a cached copy of the requested table data, the operations can further include transmitting a request to subscribe for updates from the one or more appropriate data server computers; the operations can also include receiving a subscription update from one or more of the piuraiity of data server computers; and the operations can further include electronically distributing the received subscription update to one or more of the plurality of TDCP clients.

[0006] The operations can further include, when the shared memory cache contains a cached copy of the requested table data, transmitting, to the first TDCP client, one or more second electronic messages comprising a reference indicating a location where the cached copy is stored in the shared memory portion of the cache memory device in response to the first electronic message, the data received from at least one of the plurality of data server computers and stored in the cache memory device being authoritative due to a data model of the plurality of data server computers.

When the shared memory cache does not contain a cached copy of the requested table data, the operations can include selecting one or more data server computers from the plurality of data server computers as one or more appropriate data server computers to provide the requested table data.

[0009] Some implementations can include a memory-efficient and processor-efficient computer system for reliable implementation of a table data cache proxy.

The system can comprise at least one data server having a table data service accessible via an electronic messaging protocol. system can also comprise a table data cache proxy enabled (TDCP-enabled) server coupled to the one or more data servers, the TDCP-enabled server caching data from the plurality of data servers and aggregating subscriptions to the plurality of data servers.

[0010] The operations can include receiving a first electronic message requesting table data.

These conventional systems may include clients that independently access tables from each data source directly.

In such data systems, a need may exist to provide systems and methods for an optimized composite table data service providing flexible data routing and caching across the various data sources for one or more clients, in order to reduce memory usage and to enable redundancy, high-availability, scalability, and rule-based data discovery.

The operations can also include determining whether a cache of the TDCP-enabled server contains a cached copy of the requested table data.

The operations can further include, when the cache of the TDCP-enabled server contains a cached copy of the requested table data, transmitting one or more second electronic messages providing the cached copy of the requested table data from the cache in response to the first electronic message, the data received from at least one of the plurality of data servers and stored in the cache being authoritative due to a data model of the plurality of data servers, [0011 j When the cache of the TDCP-enabled server does not contain a cached copy of the requested data: the operations can include determining one or more appropriate data servers of the plurality of data servers to request the requested table data from; the operations can also include transmitting one or more third electronic messages to the one or more appropriate data servers requesting the requested table data, the operations can further include receiving one or more fourth electronic messages from the one or more appropriate servers in response to the one or more third electronic messages; the operations can also include filtering the received one or more fourth electronic messages and, based on a result of the filtering, transmitting one or more fifth electronic messages providing the requested table data in response to the first electronic message.

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