IBM Data and AI Ideas Portal for Customers


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Replication: Q-Replication & Availability

Showing 74

Allowing mulitple subscriptions to write to the same MQ queue

To avoid overheads on non-mainframe environments, our client has a requirement for multiple CDC subscriptions to be able to write to a single MQ queue. Currently this is limited
over 6 years ago in Replication: Q-Replication & Availability / Q Replication for Z 0 Not under consideration

To enable capture log buffer flush periodically (Infosphere Replication Server)

Sometimes, there are too small data to replicate but busy logging which are not interested in. Q Capture log read should be quick enough even busy logging. Customer request the periodical flush of log buffer(logrdbufsz) with optional new parameter.
almost 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 1 Not under consideration

No Expression Procession for CAST_TO_VARCHAR2

z/OS has 65536 code page for Chinese character. CAST_TO_VARCHAR2 does not make any change in character. But the expression with Chinese character causes performance problem. For character in RAW to VARCHAR2, Qrep should ignore the expression CAST_...
about 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 2 Not under consideration

QRep Automatic Refresh with ICU Decoding

ICBC load existing data from z/OS db2 to Oracle: z/OS exported file -> UDS (ICBC application) decoding -> SQL Loader import to Oracle DB. For QREP automatic Refresh, decoding with customized decoding rule is required. It should be:z/OS expor...
about 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 1 Planned for future release

QREP supports LOB replication in A-A 2.0

Our customer is adopting QREP for data replication under proxy mode. And they find that QREP couldn't support LOB replication when QCAP runs in proxy DB2 Data Sharing Group. However, our customers have some table defined with LOB columns. So they ...
about 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 0 Not under consideration

Alternative of Updating All or Changed Fields for SQL Update

When replication of SQL Update, only changed fields are updated now. The data consistency cannot be guaranteed if any changes are happened during the period of no replication is executed. All fields updating is required for SQL Update data replica...
about 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 1 Planned for future release

Leverage "FOR EACH ROW ON UPDATE" functionality to maintain Peer to Peer Version Columns, instead of triggers

Current implementation of Peer to Peer Version Columns (IBMQREPVERTIME and IBMQREPVERNODE) depend on BEFORE INSERT and BEFORE UPDATE triggers to maintain transaction information for conflict_action of V (last transaction wins). The use of these tr...
over 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 0 Not under consideration

Enhance QREP peer-to-peer configuration

Currently most of the customer implementation of QREP is using 'unidirectional replication configuration' even the customer has need of bi-directional replication requirements. Normally applications occur on the source site only, the target tables...
over 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 0 Not under consideration

Improving the performace of INITIAL LOAD

ABC(Agriculture Bank of China) have implemented A-A based on QREP. Due to its huge number of data volume, the maintenance related to A-A is extreme complex. The more easy operation of QREP the more maintenance convenience.The function of QREP init...
over 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 0 Not under consideration

New function when startup q-rep capture stc

When start up the appy STC, can pass the LSN by the parameter ourside JCL.
over 7 years ago in Replication: Q-Replication & Availability / Q Replication for Z 0 Functionality already exists

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