<div dir="ltr"><div class="gmail_default" style="font-family:trebuchet ms,sans-serif;font-size:small"><div class="gmail_default">Hi,</div><div class="gmail_default">yes normally I build the graph in my local machine (or any other server if you want) and upload (overwrite) the .osrm.* files.</div><div class="gmail_default">After that you can simply restart the osrm-routed process and it starts to use the new graph.<br></div><div class="gmail_default">So you can split it without any problems in two servers.<br></div><div class="gmail_default"><br></div><div class="gmail_default">To reach the hot swap you can move the .osrm.* files from the build server to the production server with rsync. You can use ssh key access between the two servers so you can automate it. Obviously if you put the two servers in the same private network and zone in GCP you can move the files using the private IP (es. 10.0.0.15) so nothing runs on the "internet wire" and there's no charge for data transferred in the same availability zone in GCE.</div><div class="gmail_default"><br></div><div class="gmail_default">Another option (more expensive) is to use the Google Filestore that is like a NFS NAS. You can mount a folder on both servers. The build server writes the new graph and the production one reads it.</div><div class="gmail_default"><br></div><div class="gmail_default">Once you have the osrm-routed completely loaded the graph will be loaded in RAM so you can change the .osrm.* files without problems and after that restart the osrm-routed.</div><div class="gmail_default"><br></div><div class="gmail_default">Let me know if you need other ideas.</div></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8px">Nico Aymet</span><br></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El vie, 16 jul 2021 a las 9:40, Nikhil VJ (<<a href="mailto:nikhil.js@gmail.com">nikhil.js@gmail.com</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi, <br></div><div>There's a big difference in RAM requirements between building a graph in OSRM, and deploying it. I've seen for one country's osm pbf, at build time it can easily cross 16GB, whereas when we serve the built-up graph it's only occupying a little under 7GB RAM.</div><div><br></div><div>If I commission a 32GB RAM server for this, it's a bad waste of 3/4th of the resources for something that I would need to do for just, say, half an hour in a day, or 1/48th of the time.<br></div><div>So can we split this?</div><div><br></div><div>In GCP (Google Cloud Platform), I want to use a more exotic service like dataproc (if you know something better then pls tell) for doing the building, and then a VM or a Kubernetes deployment for the server.</div><div>I'm getting stuck at this question : How do I make the data files generated by OSRM's build process, available to the server deployment?</div><div>The regular GCP tutorials I see talk about databasing data. Not about large gigabyte+ binary files.</div><div><br></div><div>Is there a way I can mount one same same storage bucket/folder/drive to both?</div><div>Or, is there a way to FTP everything from one place to the other?</div><div><br></div><div>Resizing the server's RAM : from 8GB to 32GB and back to 8GB - is something I've tried out.. have to switch the whole thing off for quite a long time twice and it doesn't look elegant. Ideally I'd want an arrangement where the server keeps running, the build action happens elsewhere and the graph data gets replaced by latest, and then we quickly restart the server. A "hot swap" so to speak.<br></div><div><br></div><div>This all has to meet org security requirements of course. For example: it's not an option to make the generated files accessible for download over the open internet.</div><div>Does anybody else have knowledge of this kind of setup? What would you advise?</div><div><br></div><div><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>--<br>Cheers,<br>Nikhil VJ<br><a href="https://nikhilvj.co.in" target="_blank">https://nikhilvj.co.in</a></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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