Re: [EXT] Re: Goldengate: How to load multiple files for initial load?

From: Andrew Kerber <andrew.kerber_at_gmail.com>
Date: Fri, 10 May 2019 12:03:53 -0500
Message-ID: <CAJvnOJZ0HQbemrB_xmjPhgKF3sj+bwbcQkgp=-2i+dfjXUatTA_at_mail.gmail.com>



Ok. I might be tempted to try a database link at that point, multiple insert into...select * from, if you have a range of values you can use.

On Fri, May 10, 2019 at 11:39 AM Livingston, Daniel <DLivingston_at_west.com> wrote:

> It will load a single file of about 3 mill rows in about a minute or so,
> but it means I need to run it repeatedly (apparently).
>
>
>
> The reason for going the route with GG itself was that this table
> eventually needs to be replicated ongoing from Oracle -> SQL Server
>
>
>
> BCP seems to have the same problem: it expects a single source datafile.
>
>
>
>
>
> RMTFILE: limit of 2GB per file
>
> EXTFILE: read on a single file
>
> BCP.exe: read only a single file
>
>
>
>
>
> Almost like these utilities were last updated in 2005 or something ...
>
>
>
>
>
>
>
> *From:* Andrew Kerber [mailto:andrew.kerber_at_gmail.com]
> *Sent:* Friday, May 10, 2019 10:32 AM
> *To:* Livingston, Daniel <DLivingston_at_regmail.west.com>
> *Cc:* oracle-l_at_freelists.org
> *Subject:* [EXT] Re: Goldengate: How to load multiple files for initial
> load?
>
>
>
> For large tables, you cant really use that method and expect it to finish
> in a reasonable time. You will need to look at BCP, or perhaps even a
> database link for the initial load.
>
>
>
> On Fri, May 10, 2019 at 10:54 AM Livingston, Daniel <DLivingston_at_west.com>
> wrote:
>
> I have a table of around 65mill rows that I need to replicate from an
> Oracle 18 database to SQL Server 2008
>
>
>
> Source: Oracle 18.5, Goldengate 18.1
>
> Target: SQL Server 2008R2, Goldengate 12.3 (this system is being migrated
> later this year to SS 2017 – different story)
>
>
>
>
>
> I am trying to do this via the FILE to REPLICAT method:
>
>
>
> -- Extract to trail files on remote server
>
> -- Start SPECIALRUN replicat to read through the trail files and load the
> target table
>
>
>
>
>
> The problem I am running into is that the replicat can only seem to read a
> **single** trail file at a time. It cannot use wildcards or any other way
> I have found to specify multiple EXTFILE datafiles
>
>
>
> -------------- file list (partial) ----------------
>
>
>
> Directory: C:\GGate\dirdat
>
>
>
> Mode LastWriteTime Length Name
>
> ---- ------------- ------ ----
>
> -a--- 5/10/2019 8:54 AM 2041669405 initld000000
>
> -a--- 5/10/2019 8:56 AM 2041669563 initld000001
>
> -a--- 5/10/2019 8:59 AM 2041669310 initld000002
>
> -a--- 5/10/2019 9:01 AM 2041669276 initld000003
>
> -a--- 5/10/2019 9:03 AM 1119899237 initld000004
>
> ...
>
>
>
> ------------------------------------------------------------
>
>
>
>
>
> ----------- replicat param file -------------------------
>
>
>
> specialrun
>
> abortonfatalerror
>
> BATCHSQL
>
>
>
> discardfile ./dirrpt/initld.dsc, purge
>
>
>
> targetdb ers_gg, useridalias ggadmin
>
>
>
> extfile ./dirdat/initld
>
>
>
> sourcecatalog vsopdb
>
> MAP vsop.masterline_repl, TARGET dbo.masterline_repl, colmap(usedefaults);
>
>
>
> end runtime
>
>
>
> ------------------------------------------------------------
>
>
>
>
>
> Get the error:
>
>
>
> 2019-05-10 09:36:14 ERROR OGG-01091 Unable to open file
> "C:\GGate\dirdat/initld" (error 2, The system cannot find the file
> specified.).
>
>
>
>
>
>
>
> Is there any way to do this? Or am I supposed to create a powershell loop
> of some sort to process the full 57 data files one by one? I have tried
> with a wildcard (error), multiple EXTFILE parameters (only reads the last
> one) ... ?
>
>
>
>
>
>
>
>
>
> --
>
> Andrew W. Kerber
>
> 'If at first you dont succeed, dont take up skydiving.'
>

-- 
Andrew W. Kerber

'If at first you dont succeed, dont take up skydiving.'

--
http://www.freelists.org/webpage/oracle-l
Received on Fri May 10 2019 - 19:03:53 CEST

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