[Postgres-xc-committers] Postgres-XC branch, master, updated. 19d1d645290457d8ec8c3ec0e4ff1fcc78b43

Project "Postgres-XC".

The branch, master has been updated
       via  19d1d645290457d8ec8c3ec0e4ff1fcc78b43377 (commit)
      from  0b8135db11723d586033bf45de94705003ef2bf6 (commit)


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http://postgres-xc.git.sourceforge.net/git/gitweb.cgi?p=postgres-xc/postgres-xc;a=commit;h=19d1d645290457d8ec8c3ec0e4ff1fcc78b43377

commit 19d1d645290457d8ec8c3ec0e4ff1fcc78b43377
Author: Michael P <mic...@us...>
Date:   Thu Jul 21 14:45:03 2011 +0900

    Reactivate preferred_data_nodes
    
    preferred_data_nodes is a GUC parameter that allows the user to
    set a list of node numbers in a string to determine on which node
    a read operation should be done for replicated tables.
    It happened that even if parameter was set, the list of preferred nodes
    was not created from the GUC string and so it had no effects.
    
    It has been found that this fix improves performance of the whole cluster
    system by up to 30%.

M	src/backend/pgxc/locator/locator.c

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Summary of changes:
 src/backend/pgxc/locator/locator.c |   54 +++++++++++++++++++++++++++++++++--
 1 files changed, 50 insertions(+), 4 deletions(-)


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