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Informix - Problem description

Problem IT27586 Status: Closed

DURATION OF DEFINING A MASTER REPLICATE WOULD INCREASE EXPONENTIALLY WITH
THE NUMBER OF FRAGMENTED TABLES IN ANY ONE DATABASE I

product:
INFORMIX SERVER / 5725A3900 / B70 - IDS 11.70
Problem description:
Schema verification step (for one participant) when defining a
master replicate on a single table (cdr define replicate ... -M,
the default since v12.10) would take longer the more tables
there are in that participant's database, yet this would still
remain within few seconds with some thousand tables, if those
tables aren't fragmented.

With fragmented tables, though, the effect becomes increasingly
(exponentially) worse the more fragmented tables there are,
regardless of the actual number of fragments per table.

For instance:
  duration    with so many fragmented tables
   4 secs      1000
  14 secs     2000
  27 secs     3000
   ...
  many minutes   with multiple 10.000 tables

The same obviously will be true for realizing a template, yet
only the first verification for a given realization server would
take this long, so the net effect would be alleviated by the
template comprising multiple tables.
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of IDS 11.70.xC9 and earlier versions.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* Duration of defining a master replicate would increase       *
* exponentially with the number of fragmented tables in any    *
* one database involved.                                       *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Local Fix:
Solution
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
27.12.2018
08.10.2019
08.10.2019
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)
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