Re: BDR Global Sequences - Mailing list pgsql-general

From pbj@cmicdo.com
Subject Re: BDR Global Sequences
Date
Msg-id 1412085628.14581.YahooMailBasic@web161702.mail.bf1.yahoo.com
Whole thread Raw
In response to Re: BDR Global Sequences  (Andres Freund <andres@2ndquadrant.com>)
List pgsql-general
Hi Andres,

 > Hi,
 >
 > On 2014-09-29 13:52:52 -0700, pbj@cmicdo.com wrote:
 >> I have a question about BDR Global Sequences.
 >>
[deleted]
 >> Is there way to increase a global sequence's reservation block for each
 >> node so that I can tell the nodes, "I'm going to load 100M rows now so
 >> you should get ready for that."?
 >
 >
 > Not yet, but we're planning to add that.

Good to hear.  In the meantime, is there something I can hack to force
the nodes to make a sequence allocation of my choosing (even if just
hardwired?)  I was playing with start_elections_sql where it says:

        generate_series(\n"
                current_max,\n"
                -- 1000 is the chunk size, -1 is to get < instead <= out of generate_series\n"
                current_max + 1000 * (5 - open_seq_chunks) - 1,\n"
                1000) chunk_start\n"

and hoping that bumping up the 1000 would help, but apparently not.

PJ

 >
 > Greetings,
 >
 > Andres Freund
 >
 > --
 > Andres Freund                       http://www.2ndQuadrant.com/
 > PostgreSQL Development, 24x7 Support, Training & Services
 >



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