Hi Tim,<br><br>Thanks for the write-up.<br><br>The easiest way to create a suitable .gfs file is to run the loader against a single .gz in debug mode with the gfs_file option blank (gfs_file=). This will cause OGR to create a .gfs for the input dataset in your temp directory which you can then open in a text editor and tweak as you see fit.<br>
<br>In related news, a few weeks back I merged some work that Pete Wells at Faunalia did to provide enhanced output tailored to ESRI Shape and use in QGIS which he is using with the <a href="http://www.faunalia.co.uk/content/ordnance-survey-translator-updated">QIS plugin</a> that's built on top of the OSMM Loader.<br>
<br>As ever the latest OSMM Loader can be found here: <a href="https://github.com/AstunTechnology/osmmloader">https://github.com/AstunTechnology/osmmloader</a> and the QGIS Plugin here: <a href="http://www.faunalia.it/qgis/plugins.xml">http://www.faunalia.it/qgis/plugins.xml</a><br>
<br>Cheers,<br><br>Matt.<br>-- <br>Matt Walker<br>Astun Technology<br>@_walkermatt<br><br><br><div class="gmail_quote">On 26 August 2011 13:16, Tim Martin <span dir="ltr"><<a href="mailto:Tim.Martin@ordnancesurvey.co.uk">Tim.Martin@ordnancesurvey.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<u></u>
<u></u>
<u></u>
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy">Hi Mike<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy">For VML would I just need the new .gfs file?
If you have one can you send it over and will try a national load as I have the
data already on an amazon box that I could kick off.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy">Best person for the PR would be Matt White,
will give him an update and hopefully you guys could do something, especially
with AGI not far away.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy">If you can get the load time down to 24 hours,
or close to ;), then COU almost becomes redundant as storage is becoming such a
commodity<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy">Cheers<u></u><u></u></span></font></p><div class="im">
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy">Tim<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"> <u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
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<p class="MsoNormal" style="line-height:12.0pt"><b><b><font color="#4d4d4d" face="Tahoma" size="2"><span style="font-size:10.5pt;font-family:Tahoma;color:#4D4D4D">Tim Martin Msc Bsc(Hons)</span></font></b></b><font color="#4d4d4d" face="Tahoma" size="2"><span style="font-size:10.5pt;font-family:Tahoma;color:#4D4D4D"><u></u><u></u></span></font></p>
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<p class="MsoNormal" style="line-height:12.0pt"><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray"><a href="http://www.ordnancesurvey.co.uk" target="_blank">www.ordnancesurvey.co.uk</a> | <a href="mailto:Tim.Martin@ordnancesurvey.co.uk" target="_blank">Tim.Martin<span>@ordnancesurvey.co.uk</span></a>
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<div class="MsoNormal" style="text-align:center" align="center"><font face="Times New Roman" size="3"><span style="font-size:12.0pt" lang="EN-US">
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<p class="MsoNormal"><b><font face="Tahoma" size="2"><span style="font-size:10.0pt;font-family:Tahoma;font-weight:bold" lang="EN-US">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size:10.0pt;font-family:Tahoma" lang="EN-US">
Mike Saunt [mailto:<a href="mailto:mikesaunt@astuntechnology.com" target="_blank">mikesaunt@astuntechnology.com</a>] <br>
<b><span style="font-weight:bold">Sent:</span></b> 26 August 2011 13:03<br>
<b><span style="font-weight:bold">To:</span></b> Tim Martin<br>
<b><span style="font-weight:bold">Cc:</span></b> <a href="mailto:uk@lists.osgeo.org" target="_blank">uk@lists.osgeo.org</a>; William
Allbrook<br>
<b><span style="font-weight:bold">Subject:</span></b> Re: [OSGeo-UK] Astun
Technology OSMM Loader In Practice</span></font><span lang="EN-US"><u></u><u></u></span></p>
</div><div><div></div><div class="h5">
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">Tim<u></u><u></u></span></font></p>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">Thanks for the summary - would be good for some joint PR -
Astun/OS/OSGeo if we could.<u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">FYI - I loaded Vector Map Local using the same software for the whole
of Cambridgeshire and it ran without a hitch - very happy. We're building some
MapServer .map files with this styled which we'll make available at
some stage. We already have a few variants for MasterMap - if anyone
wants them let us know and we'll publish.<u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
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<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">COU - I'm pretty confident with this as we already have a couple of SQL
statements to derive new tables of only the latest TOIDs (for MM) so in effect
the COU files can be loaded / inserted into the same POSTGIS tables and we'd
derive another as a post process. This way we can have a full history if
required. Some of our customers have simply commented that they will
probably just take a full update each year and rebuild from scratch.<u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">Re User Interface - we'll be trying to simplify things somewhat and
will be providing 'official' (we already do for quite a few customers)
Enterprise Support, Training and Custom Development for this and other OSGeo
products in the very near future<u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">Many thanks<u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">Mike<br clear="all">
<u></u><u></u></span></font></p>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"> <u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">PS - my goal would be to have this whole process for national coverage
being achievable in under 24 hours - some tweaks and PostGIS optimizations will
help but I guess we've also got <u></u><u></u>Moore<u></u><u></u>'s
Law on our side<u></u><u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
</div>
<div>
<p class="MsoNormal"><b><b><font face="Times New Roman" size="3"><span style="font-size:12.0pt">Mike Saunt</span></font></b></b><br>
Astun Technology Ltd, The Coach House, <u></u><u></u>17 West Street<u></u><u></u>, Epsom, <u></u><u></u>Surrey<u></u>, <u></u>KT18 7RL<u></u>,
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<p class="MsoNormal" style="margin-bottom:12.0pt"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"><br>
<br>
<u></u><u></u></span></font></p>
<div>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt">On 26 August 2011 12:52, Tim Martin <<a href="mailto:Tim.Martin@ordnancesurvey.co.uk" target="_blank">Tim.Martin@ordnancesurvey.co.uk</a>>
wrote:<u></u><u></u></span></font></p>
<div link="blue" vlink="purple">
<div>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">Hi All</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">Matt Walker
asked if I would document my use of the OSMM Loader, so here goes</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">I tested
both the initial (direct PostGIS loading using INSERT) and the significantly
quicker PGDump version on national coverage OSMM.</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">I used the
non-geo chunks, as I didn’t want to have to post process the database tables to
remove identical features. Matt has this down as a future improvement and I
would second that along with COU as being extremely useful. </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">Details as
follows</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">1) Step 1 was
to use the Astun loader to create the SQL Dump/COPY files. For this I used a
High-CPU Windows 64 Bit with Python 2.5 and GDAL 1.8 installed via the OSGeo4W
installer.</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">Using
Non-Geo chunks of OSMM there are 1297 files equating to 35.9GB, I used 6 threads
(the computer had 8 cores) to process 216 files/6Gb each and this took 15 hours
and outputted 215Gb of SQL files, one for each Gzip file</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">2) Step 2
Data Loading</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">I used the
inbuilt PSQL loader and run 2 threads on a Large Windows Amazon Instance to
load the data in PostGIS. Only 2 threads could be used as the Large instances
only have 2 cores – although it was only using 30-40% of total CPU, so could
potentially up this to 4 threads.</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">The load
took 13-14 hours</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">3) Running
the spatial indexes</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">I amended
the config of PostGIS and upped the maintenance memory to 1Gb. This helped
created the spatial indexes in less than 10 hours compared to the original 17
hours with default PostGIS</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">So SQL
creation + data load + indexes = 40 hours.</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">I guess for
many people it will be the fear of using a commandline tool (people love a good
GUI) and the fact they do not have access to these powerful computers?</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">I have been
very impressed though and would like to thank Matt for his support</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">Tim</span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size:12.0pt"> <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"> </span></font><u></u><u></u></p>
<div>
<div style="margin-bottom:9.0pt">
<p class="MsoNormal" style="line-height:12.0pt"><b><b><font color="#4d4d4d" face="Tahoma" size="2"><span style="font-size:10.5pt;font-family:Tahoma;color:#4D4D4D">Tim Martin Msc
Bsc(Hons)</span></font></b></b><u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="line-height:12.0pt"><b><b><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray">Web
Services Consultant and INSPIRE Technical Business Development Manager</span></font></b></b><u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="line-height:12.0pt"><b><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray;font-weight:bold">Ordnance
Survey</span></font></b><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray"> </span></font><u></u><u></u></p>
</div>
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<p class="MsoNormal" style="line-height:12.0pt"><u></u><u></u><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray">Mobile</span></font><u></u><u></u><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray">: <a href="tel:%2B44%20%280%29%C2%A07917%20550%20225" value="+447917550225" target="_blank">+44 (0) 7917 550 225</a></span></font><u></u><u></u></p>
</span></div>
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<p class="MsoNormal" style="line-height:12.0pt"><font color="gray" face="Tahoma" size="1"><span style="font-size:9.0pt;font-family:Tahoma;color:gray"><a href="http://www.ordnancesurvey.co.uk" target="_blank">www.ordnancesurvey.co.uk</a> | <a href="mailto:Tim.Martin@ordnancesurvey.co.uk" target="_blank">Tim.Martin@ordnancesurvey.co.uk</a>
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<pre><font face="Courier New" size="2"><span style="font-size:10.0pt">This email is only intended for the person to whom it is addressed and may contain confidential information. If you have received this email in error, please notify the sender and delete this email which must not be copied, distributed or disclosed to any other person.<u></u><u></u></span></font></pre>
<pre><font face="Courier New" size="2"><span style="font-size:10.0pt"><u></u> <u></u></span></font></pre><pre><font face="Courier New" size="2"><span style="font-size:10.0pt">Unless stated otherwise, the contents of this email are personal to the writer and do not represent the official view of Ordnance Survey. Nor can any contract be formed on Ordnance Survey's behalf via email. We reserve the right to monitor emails and attachments without prior notice.<u></u><u></u></span></font></pre>
<pre><font face="Courier New" size="2"><span style="font-size:10.0pt"><u></u> <u></u></span></font></pre><pre><font face="Courier New" size="2"><span style="font-size:10.0pt">Thank you for your cooperation.<u></u><u></u></span></font></pre>
<pre><font face="Courier New" size="2"><span style="font-size:10.0pt"><u></u> <u></u></span></font></pre><pre><font face="Courier New" size="2"><span style="font-size:10.0pt">Ordnance Survey<u></u><u></u></span></font></pre>
<pre><u></u><u></u><font face="Courier New" size="2"><span style="font-size:10.0pt">Adanac Drive</span></font><u></u><u></u><u></u><u></u></pre><pre><u></u><font face="Courier New" size="2"><span style="font-size:10.0pt">Southampton</span></font><u></u> SO16 0AS<u></u><u></u></pre>
<pre><font face="Courier New" size="2"><span style="font-size:10.0pt">Tel: 08456 050505<u></u><u></u></span></font></pre><pre><font face="Courier New" size="2"><span style="font-size:10.0pt"><a href="http://www.ordnancesurvey.co.uk" target="_blank">http://www.ordnancesurvey.co.uk</a><u></u><u></u></span></font></pre>
<pre><font face="Courier New" size="2"><span style="font-size:10.0pt"><u></u> <u></u></span></font></pre>
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_______________________________________________<br>
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mailing list<br>
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<pre>This email is only intended for the person to whom it is addressed and may contain confidential information. If you have received this email in error, please notify the sender and delete this email which must not be copied, distributed or disclosed to any other person.
Unless stated otherwise, the contents of this email are personal to the writer and do not represent the official view of Ordnance Survey. Nor can any contract be formed on Ordnance Survey's behalf via email. We reserve the right to monitor emails and attachments without prior notice.
Thank you for your cooperation.
Ordnance Survey
Adanac Drive
Southampton SO16 0AS
Tel: 08456 050505
<a href="http://www.ordnancesurvey.co.uk" target="_blank">http://www.ordnancesurvey.co.uk</a>
</pre></div></div><br>_______________________________________________<br>
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