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When creating new replication configurations ASNCLP checks the existence of MQ Queues, qmaps, tables, etc. When deploying to production, we need to have pre-prepared and tested the implementation scripts. However, because ASNCLP validates that the...
Db2 LUW - SQL replication should optionally use TRUNCATE when performing a Full Refresh of large tables
Db2 LUW SQL Replication (10.2.1)
When you run a Full Refresh of a subscription set, the asnapply utility issues a DELETE FROM <target table> prior to the refresh of the data.
For large tables this has a significant and unnecessary overhead...
Document process for publication as opposed to subscription migration
The manuals document the process to migrate ALL *subscriptions* to a new Q capture task. Our scenario involved migrating single publications one-by-one (by sendq) to an existing actively used Q capture task. Please update the replication guide for...
Display of replication throughput per subscription
Today Q Apply stores detailed performance statistics on queue level. This idea raises the request to store certain Q Apply throuput statistics (like rows_processed) on subscription level. Background: Today it is very difficult / sometime impossibl...
The Q-Replication apply programm shall be able to call the Db2 High Performance Unload (HPU) utility by the HPU stored procedure
in enterprise warehouse and OLTP areas of DB2 installations exist often very big databases with several tera bytes (often 100 of TBs) of data.
For example we have several OLTP databases with more than 20TB and tables with billion of recor...
Q-Replication Apply program shall be able to recognize if a column-organized table contains already a dictionary
the current implementation of the Q-Replication apply program for an automatic LOAD operation on column-organized target tables does not recognize if a dictionary already exist.
A column compression dictionary is used to compress data ...
Adding of a new apply parameter DBLOAD_OPTIONS in order to influence an automatic load performed by the Q-Replication apply program on column-organized tables.
A column compression dictionary is used to compress data in a column of a column-organized table. When you load data into a column-organized table, the first phase is the analyze phase, which is unique to column-organized tables.The analyze phase ...
QCapture should recognize column with FIELDPROC at CAPSTART time
QCapture should check if the source table has FIELDPROC in any of its column when it process the CAPSTARTsignal. Today QCapture checks if the source tables have any FIELDPROC at start or reinit time and keeps this information in memory. If a new t...
Customer met poor performance of spill agent issue recently. And would like to request this enhancement.The idea can be either below :1) The spill agent runs on multiple threads2) Multiple spill agents serve for one spill queue
Qrep is used to replicate data from z to distributed environment, ICBC found the Qrep apply log keep to increase and cause the difficult in operation management, so they request Qrep to enable the log split function on the apply site. they expect...
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