Comments (2)
Of course there should be no errors of crashes, but I wonder how much sense there is in creating overviews in multiple threads. GeoPackage is an SQLite database and only one process at a time can write. But maybe it is slower to create the overviews than to save them into the database. Fortunately that should be rather easy to test.
from gdal.
but I wonder how much sense there is in creating overviews in multiple threads.
Multithreading in overview generation only affects the computation part (well for the GeoTIFF driver, this can also cause multi-threaded writes within the driver). This can help a bit depending on the resampling kernel. The issue here was that one of those computation worker threads accidentally queried the NBITS metadata item on the overview band, which on the first call can cause a SQLite request, wheras the I/O thread could potentially read or write GeoPackage blobs at the same time, hence a concurrent use of the same SQLite handle. Fixed per #10246
from gdal.
Related Issues (20)
- GPKG: support ALTER TABLE ... RENAME TO ... for raster layers
- Viewshed: Some cells not properly calculated
- Floating Point Exception with geodetic to mercator reprojection HOT 4
- SMB Support for Vsicurl
- VSICURL Error: Range downloading not supported by this server HOT 1
- Importing NAS file results in empty or omitted "istBestandTeilVon" - Field HOT 3
- /vsisubfile reads GRIB2 files inconsistently HOT 5
- Unable to convert EPSG:3857 to XML HOT 3
- `Centroid` operation crashes or hangs HOT 3
- Doc: gpkg "Performance Hints" link broken HOT 1
- Python bindings: allow creating & exporting `Transformer` without always needing a source dataset HOT 4
- gdal_calc.py -A "C:\Users\VP\Desktop\ETOPO_2022_v1_60s_N90W180_bed.tif" --outfile="C:\Users\VP\Desktop\result.tif" --calc="A*logical_and(A>34)" worked once on my Gdal and now refuses too work again, how to fix? HOT 3
- gdal 3.9.0 build for android failed HOT 1
- SWIG Layer.SetAttributeFilter method fails with MSSQL for non utf-8 strings HOT 1
- 'istBestandteilVon' field empty in NAS File (ALKIS) HOT 2
- gdalinfo crash on calculating statistics for Esri Tile Package (.tpkx) file HOT 6
- make install puts python packages in the wrong directory HOT 5
- extra Coefs generated when adding a KernelFilteredSource to a VRT HOT 1
- LIBKML OGR_STYLE
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from gdal.