From 1b3acc4f8f991e4b78b68694f8a2ff3812208f18 Mon Sep 17 00:00:00 2001 From: Sarah Hoffmann Date: Tue, 8 Dec 2020 08:57:46 +0100 Subject: [PATCH] update import times --- docs/admin/Import.md | 10 +++++----- docs/admin/Installation.md | 8 ++++---- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/docs/admin/Import.md b/docs/admin/Import.md index 853cde61..792070e4 100644 --- a/docs/admin/Import.md +++ b/docs/admin/Import.md @@ -64,7 +64,7 @@ involve a GB or US postcode. This data can be optionally downloaded: In its default setup Nominatim is configured to import the full OSM data set for the entire planet. Such a setup requires a powerful machine with -at least 64GB of RAM and around 800GB of SSD hard disks. Depending on your +at least 64GB of RAM and around 900GB of SSD hard disks. Depending on your use case there are various ways to reduce the amount of data imported. This section discusses these methods. They can also be combined. @@ -137,10 +137,10 @@ OSM data grows with time. style | Import time | DB size | after drop ----------|--------------|------------|------------ admin | 4h | 215 GB | 20 GB -street | 42h | 400 GB | 180 GB -address | 59h | 500 GB | 260 GB -full | 80h | 575 GB | 300 GB -extratags | 80h | 585 GB | 310 GB +street | 22h | 440 GB | 185 GB +address | 36h | 545 GB | 260 GB +full | 54h | 640 GB | 330 GB +extratags | 54h | 650 GB | 340 GB You can also customize the styles further. A [description of the style format](../develop/Import.md#configuring-the-import) diff --git a/docs/admin/Installation.md b/docs/admin/Installation.md index 8ca41e8f..6fd1c4d4 100644 --- a/docs/admin/Installation.md +++ b/docs/admin/Installation.md @@ -57,12 +57,12 @@ A minimum of 2GB of RAM is required or installation will fail. For a full planet import 64GB of RAM or more are strongly recommended. Do not report out of memory problems if you have less than 64GB RAM. -For a full planet install you will need at least 800GB of hard disk space -(take into account that the OSM database is growing fast). SSD disks -will help considerably to speed up import and queries. +For a full planet install you will need at least 900GB of hard disk space. +Rake into account that the OSM database is growing fast. +Fast disks are essential. Using NVME disks is recommended. Even on a well configured machine the import of a full planet takes -at least 2 days. Without SSDs 7-8 days are more realistic. +around 2 days. On traditional spinning disks, 7-8 days are more realistic. ## Tuning the PostgreSQL database -- 2.39.5