# Uncategorized **URL:** https://forum.tiledb.com/c/uncategorized/1.md?page=1 [Latest](https://forum.tiledb.com/latest.md) · [Categories](https://forum.tiledb.com/categories.md) **Page:** 2 --- ## [Failed to Load Dataset - Unknown Error](https://forum.tiledb.com/t/failed-to-load-dataset-unknown-error/701)
**Author:** [@Mahesh\_Cheegiti](https://forum.tiledb.com/u/Mahesh_Cheegiti)\ **Replies:** 4\ **Last updated:** [August 1, 2024, 3:46pm UTC](https://forum.tiledb.com/t/failed-to-load-dataset-unknown-error/701 "2024-08-01T15:46:04Z")
I encountered an issue while attempting to load a dataset in TileDB. The error message I received is as follows: { "detail": "Failed to load dataset: Unknown error: Wrapping {1925|1-154585209-C-T\_ANY|ADAR|103|ANY|0.… --- ## [Tile cache usage verification with Go API](https://forum.tiledb.com/t/tile-cache-usage-verification-with-go-api/694)
**Author:** [@weathernutt](https://forum.tiledb.com/u/weathernutt)\ **Replies:** 6\ **Last updated:** [July 3, 2024, 3:59pm UTC](https://forum.tiledb.com/t/tile-cache-usage-verification-with-go-api/694 "2024-07-03T15:59:57Z")
I am currently working on a proof of concept API for raster weather data using the Go API for tiledb (v0.30.0) with TileDB core v2.24.0. I am attempting to benchmark dense tile reads with and without sm.tile\_cache\_size s… --- ## [DenseReader: Cannot process a single tile, increase memory budget](https://forum.tiledb.com/t/densereader-cannot-process-a-single-tile-increase-memory-budget/690)
**Author:** [@kunaal\_desai](https://forum.tiledb.com/u/kunaal_desai)\ **Replies:** 22\ **Last updated:** [July 16, 2024, 11:48am UTC](https://forum.tiledb.com/t/densereader-cannot-process-a-single-tile-increase-memory-budget/690 "2024-07-16T11:48:07Z")
I have C# code using which I am reading the tiledb. I am trying to read total of 4480000 tiles, each containing 2 floats. Which from my rough math looks like around 32MBs of data. But when I try to read this tile I get f… --- ## [Ingesting folder of images](https://forum.tiledb.com/t/ingesting-folder-of-images/687)
**Author:** [@Tim\_Turner](https://forum.tiledb.com/u/Tim_Turner)\ **Replies:** 3\ **Last updated:** [June 3, 2024, 9:01pm UTC](https://forum.tiledb.com/t/ingesting-folder-of-images/687 "2024-06-03T21:01:36Z")
In the TileDB-Py examples there is one of writing a dense array. Do you have an example of “writing” image data into just local tiledb store? I need to ingest a folder of .tif images and for each one, store the name of… --- ## [Cant connect to tiledb in Docker](https://forum.tiledb.com/t/cant-connect-to-tiledb-in-docker/685)
**Author:** [@Tim\_Turner](https://forum.tiledb.com/u/Tim_Turner)\ **Replies:** 3\ **Last updated:** [May 1, 2024, 2:07pm UTC](https://forum.tiledb.com/t/cant-connect-to-tiledb-in-docker/685 "2024-05-01T14:07:45Z")
I have built tiledb and have it running in Docker. I can see it in Docker Desktop and the port is 5000. But if I try to use a python script to connect to it, I get this error: $ python timtest.py TileDB error occurre… --- ## [TileDB 2.22 release](https://forum.tiledb.com/t/tiledb-2-22-release/682)
**Author:** [@ihnorton](https://forum.tiledb.com/u/ihnorton)\ **Replies:** 0\ **Last updated:** [April 25, 2024, 3:12pm UTC](https://forum.tiledb.com/t/tiledb-2-22-release/682 "2024-04-25T15:12:42Z")
This week we shipped TileDB 2.22, along with all related package updates, and new package versions on TileDB Cloud. Some highlights of this release include: support for new object store authentication methods for Azure… --- ## [Seeking Advice to Optimize Writing Speed for Large Int16\_t Arrays](https://forum.tiledb.com/t/seeking-advice-to-optimize-writing-speed-for-large-int16-t-arrays/679)
**Author:** [@juhwan](https://forum.tiledb.com/u/juhwan)\ **Replies:** 2\ **Last updated:** [April 22, 2024, 11:37pm UTC](https://forum.tiledb.com/t/seeking-advice-to-optimize-writing-speed-for-large-int16-t-arrays/679 "2024-04-22T23:37:57Z")
Hello TileDB Community, I’m working on a project where I need to write two dense arrays with dimensions 19995 x 9216 of Int16\_t type within \< 0.07 seconds . Unfortunately, my current performance is not meeting this targ… --- ## [Long Running Archives with TileDB](https://forum.tiledb.com/t/long-running-archives-with-tiledb/668)
**Author:** [@Scott\_Syms](https://forum.tiledb.com/u/Scott_Syms)\ **Replies:** 3\ **Last updated:** [April 2, 2024, 8:05pm UTC](https://forum.tiledb.com/t/long-running-archives-with-tiledb/668 "2024-04-02T20:05:51Z")
I’m curious about your recommendations for using Tiledb as an archive for live streaming AIS data- is the preference to write separate tiledb archive every day? Or can TileDb handle db’s that never close? The former wo… --- ## [Failed opening a tileDB array on MAC when the array was created by a Windows machine](https://forum.tiledb.com/t/failed-opening-a-tiledb-array-on-mac-when-the-array-was-created-by-a-windows-machine/672)
**Author:** [@eneg](https://forum.tiledb.com/u/eneg)\ **Replies:** 2\ **Last updated:** [March 29, 2024, 10:36pm UTC](https://forum.tiledb.com/t/failed-opening-a-tiledb-array-on-mac-when-the-array-was-created-by-a-windows-machine/672 "2024-03-29T22:36:54Z")
Hi. I created a tileDB array using a Windows machine and put the array on a network drive. Then I tried to open that tileDB array on a MAC machine, but it failed. The MAC has access to the network files. Here is the cod… --- ## [Groups and TileDB-R API](https://forum.tiledb.com/t/groups-and-tiledb-r-api/667)
**Author:** [@jerlinden](https://forum.tiledb.com/u/jerlinden)\ **Replies:** 2\ **Last updated:** [March 21, 2024, 3:15pm UTC](https://forum.tiledb.com/t/groups-and-tiledb-r-api/667 "2024-03-21T15:15:10Z")
Hi! I was looking to use grouped arrays within TileDB R API, but I seem to have hit a wall . Here is a reproducible example below: library(tiledb) Data to store data\_1 ← list(a = c(1:3), b = c(“A”, “B”, “C”)) data\_2… --- ## [Not entry point found tiledb\_query\_get\_field C#](https://forum.tiledb.com/t/not-entry-point-found-tiledb-query-get-field-c/663)
**Author:** [@kunaal\_desai](https://forum.tiledb.com/u/kunaal_desai)\ **Replies:** 12\ **Last updated:** [March 12, 2024, 4:14am UTC](https://forum.tiledb.com/t/not-entry-point-found-tiledb-query-get-field-c/663 "2024-03-12T04:14:08Z")
I have some C# code which looks like following //Create array public void CreateArray(string uri, ArrayDimension rowDimension, ArrayDimension columnDimension) { try { using (var ctx = new Context()) { var domain… --- ## [ModuleNotFoundError import tiledbvcf in basics tutorial](https://forum.tiledb.com/t/modulenotfounderror-import-tiledbvcf-in-basics-tutorial/661)
**Author:** [@Sal](https://forum.tiledb.com/u/Sal)\ **Replies:** 8\ **Last updated:** [February 20, 2024, 4:04am UTC](https://forum.tiledb.com/t/modulenotfounderror-import-tiledbvcf-in-basics-tutorial/661 "2024-02-20T04:04:01Z")
New to tiledb. Got a tiledb cloud account with $10 credits. Executing the Notebook TileDB-VCF tutorial. Import tiledbvcf is erroring out. I shouldn’t even need this locally on my mac because I was trying to run it within… --- ## [\[TileDB::Task\] Error: Caught std::exception: vector too long (on Azure array)](https://forum.tiledb.com/t/tiledb-task-error-caught-std-vector-too-long-on-azure-array/658)
**Author:** [@slbteam08](https://forum.tiledb.com/u/slbteam08)\ **Replies:** 1\ **Last updated:** [February 9, 2024, 2:10pm UTC](https://forum.tiledb.com/t/tiledb-task-error-caught-std-vector-too-long-on-azure-array/658 "2024-02-09T14:10:02Z")
I am hitting a vector too long error when calling tiledb.consolidate() of TileDB-Py on an array hosted in Azure Blob Storage. There were no errors when I do the same on an identical array located on local hard disk. I ha… --- ## [Multiple concurrent writers to append-only sparse array](https://forum.tiledb.com/t/multiple-concurrent-writers-to-append-only-sparse-array/591)
**Author:** [@michaeljon](https://forum.tiledb.com/u/michaeljon)\ **Replies:** 10\ **Last updated:** [January 15, 2024, 6:32pm UTC](https://forum.tiledb.com/t/multiple-concurrent-writers-to-append-only-sparse-array/591 "2024-01-15T18:32:03Z")
I’m experimenting with putting an append-only sparse array behind our RNA-seq front-end. That component does read alignment and feature counting, then ends up with a list of { gene, count } pairs for the sample. We do th… --- ## [Groups api vs documentaions](https://forum.tiledb.com/t/groups-api-vs-documentaions/488)
**Author:** [@royassis](https://forum.tiledb.com/u/royassis)\ **Replies:** 4\ **Last updated:** [November 28, 2023, 3:45pm UTC](https://forum.tiledb.com/t/groups-api-vs-documentaions/488 "2023-11-28T15:45:23Z")
The docs here: shows that groups have a different structure then what is shows here: The latter only creates one file: \_\_tiledb\_group.tdb Can I create groups as in the first examples? With pointers to other location… --- ## [Appending to existing xarray with TileDB-CF-Py](https://forum.tiledb.com/t/appending-to-existing-xarray-with-tiledb-cf-py/635)
**Author:** [@sna1988](https://forum.tiledb.com/u/sna1988)\ **Replies:** 6\ **Last updated:** [December 4, 2023, 8:59am UTC](https://forum.tiledb.com/t/appending-to-existing-xarray-with-tiledb-cf-py/635 "2023-12-04T08:59:32Z")
Hello, I am trying to use the adaptor GitHub - TileDB-Inc/TileDB-CF-Py: TileDB interface with awareness of the CF metadata conventions for load netCDF files into tiledb embedded, my question how to append a new file to … --- ## [Quickly determine number of rows in your database](https://forum.tiledb.com/t/quickly-determine-number-of-rows-in-your-database/642)
**Author:** [@Scott\_Syms](https://forum.tiledb.com/u/Scott_Syms)\ **Replies:** 2\ **Last updated:** [November 30, 2023, 9:44am UTC](https://forum.tiledb.com/t/quickly-determine-number-of-rows-in-your-database/642 "2023-11-30T09:44:02Z")
I suspect there’s an obvious answer for this, but is there a quick way to obtain the number of rows in your database? tks S --- ## [Sparse float matrix](https://forum.tiledb.com/t/sparse-float-matrix/644)
**Author:** [@multimeric](https://forum.tiledb.com/u/multimeric)\ **Replies:** 1\ **Last updated:** [November 30, 2023, 6:44am UTC](https://forum.tiledb.com/t/sparse-float-matrix/644 "2023-11-30T06:44:22Z")
I’m totally new to TileDB, but I’m kind of shocked that dense float matrices aren’t supported: Creating Dimensions - TileDB Embedded Docs. It’s basically my default data type for a matrix. I’m concerned that I’ll have t… --- ## [How would you expire data in a dataset?](https://forum.tiledb.com/t/how-would-you-expire-data-in-a-dataset/620)
**Author:** [@tinodb](https://forum.tiledb.com/u/tinodb)\ **Replies:** 1\ **Last updated:** [September 26, 2023, 8:57pm UTC](https://forum.tiledb.com/t/how-would-you-expire-data-in-a-dataset/620 "2023-09-26T20:57:41Z")
We are downloading tiles of DEM data, and we’re allowed to cache those for a month. We do need to do some stitching, so it seems that TileDB would come in handy there! I do wonder how we could deal with the requirement t… --- ## [Getting VCF samples and headers with Java API](https://forum.tiledb.com/t/getting-vcf-samples-and-headers-with-java-api/633)
**Author:** [@pjbradbury](https://forum.tiledb.com/u/pjbradbury)\ **Replies:** 2\ **Last updated:** [November 16, 2023, 7:21pm UTC](https://forum.tiledb.com/t/getting-vcf-samples-and-headers-with-java-api/633 "2023-11-16T19:21:54Z")
I am learning to use the Java API to TileDB-VCF to read data from a TileDB vcf database. Using examples from the test code, I am able to read data from the data array. Is there a way to use the Java API to get a list of … --- ## [Bindings for Rust](https://forum.tiledb.com/t/bindings-for-rust/231)
**Author:** [@denny](https://forum.tiledb.com/u/denny)\ **Replies:** 5\ **Last updated:** [October 24, 2023, 6:25pm UTC](https://forum.tiledb.com/t/bindings-for-rust/231 "2023-10-24T18:25:08Z")
Hi, I’d love to use TileDB for a project written in Rust. Are there any plans for Rust bindings, either native or wrapping the C/C++ API? --- ## [Convert lat lon dimensions to Web Mercator](https://forum.tiledb.com/t/convert-lat-lon-dimensions-to-web-mercator/630)
**Author:** [@shaunakv1](https://forum.tiledb.com/u/shaunakv1)\ **Replies:** 2\ **Last updated:** [October 23, 2023, 3:32pm UTC](https://forum.tiledb.com/t/convert-lat-lon-dimensions-to-web-mercator/630 "2023-10-23T15:32:39Z")
I am trying to follow the tutorial on TileDB youtube https://youtu.be/u3QlXGwFqak?t=1508 Goal is to import ais csv, query it by given extents, and display the results on a map. The following code works fine, and I see… --- ## [Benchmarking tiledb read performance](https://forum.tiledb.com/t/benchmarking-tiledb-read-performance/278)
**Author:** [@qiuwei](https://forum.tiledb.com/u/qiuwei)\ **Replies:** 5\ **Last updated:** [October 18, 2023, 3:39pm UTC](https://forum.tiledb.com/t/benchmarking-tiledb-read-performance/278 "2023-10-18T15:39:14Z")
The original data contains 11499018 rows and 25 columns which takes roughly 900M disk space if stored as a parquet file with the backend of pyarrow. df.head(10) result: OBJECT\_ID S\_INFO\_WINDCODE TRADE\_DT CRNCY\_CODE … --- ## [How to access tiledbvcf dataset put in AWS s3 bucket](https://forum.tiledb.com/t/how-to-access-tiledbvcf-dataset-put-in-aws-s3-bucket/626)
**Author:** [@Carmen\_Chan](https://forum.tiledb.com/u/Carmen_Chan)\ **Replies:** 2\ **Last updated:** [October 17, 2023, 12:50am UTC](https://forum.tiledb.com/t/how-to-access-tiledbvcf-dataset-put-in-aws-s3-bucket/626 "2023-10-17T00:50:50Z")
– try to access tiledbvcf dataset already set up in s3 bucket (done using cli) uri = ‘s3://some-bucket’ ds = tiledbvcf.Dataset(uri, mode = “r”) ds.samples() # to list sample names → error: RuntimeError: TileDB-V… --- ## [Managing Large Geospatial Arrays with TileDB](https://forum.tiledb.com/t/managing-large-geospatial-arrays-with-tiledb/624)
**Author:** [@Baptiste\_Morel-Lab](https://forum.tiledb.com/u/Baptiste_Morel-Lab)\ **Replies:** 3\ **Last updated:** [September 29, 2023, 10:56pm UTC](https://forum.tiledb.com/t/managing-large-geospatial-arrays-with-tiledb/624 "2023-09-29T22:56:56Z")
I have a specific use case that I’d like to address with TileDB. I want to create a TileDB array that aggregates several rasters. My end goal is to be able to query the data using filters on dimensions or attributes, suc… --- ## [How can we store variable length binary blobs?](https://forum.tiledb.com/t/how-can-we-store-variable-length-binary-blobs/617)
**Author:** [@hotplot](https://forum.tiledb.com/u/hotplot)\ **Replies:** 2\ **Last updated:** [September 11, 2023, 10:42pm UTC](https://forum.tiledb.com/t/how-can-we-store-variable-length-binary-blobs/617 "2023-09-11T22:42:44Z")
I have a use case where I’m trying to associate some binary data and metadata (as attributes) using some string identifiers and timestamps as the domains. Because the primary domain is a string identifier, I believe thi… --- ## [TileDBError: \[TileDB::S3\] error storing h5ad with SOMA format](https://forum.tiledb.com/t/tiledberror-tiledb-s3-error-storing-h5ad-with-soma-format/602)
**Author:** [@cinzia](https://forum.tiledb.com/u/cinzia)\ **Replies:** 16\ **Last updated:** [September 1, 2023, 5:07pm UTC](https://forum.tiledb.com/t/tiledberror-tiledb-s3-error-storing-h5ad-with-soma-format/602 "2023-09-01T17:07:48Z")
Hello, I am trying to create a SOMA file from h5ad. I was able to generate the SOMA file using the local hard disk but when I try to generate the file on S3 I get the following error: START Experiment.from\_h5ad input… --- ## [How can I get the SHA256 hash of an array?](https://forum.tiledb.com/t/how-can-i-get-the-sha256-hash-of-an-array/612)
**Author:** [@mukund](https://forum.tiledb.com/u/mukund)\ **Replies:** 2\ **Last updated:** [August 24, 2023, 5:12am UTC](https://forum.tiledb.com/t/how-can-i-get-the-sha256-hash-of-an-array/612 "2023-08-24T05:12:56Z")
There’s a section on the doc which talks about tiledb using checksums for checking data integrity Can you give some high level details about how these are used? I’m trying to hash array contents to check for equality… --- ## [Showing a progress bar for large writes](https://forum.tiledb.com/t/showing-a-progress-bar-for-large-writes/611)
**Author:** [@mukund](https://forum.tiledb.com/u/mukund)\ **Replies:** 1\ **Last updated:** [August 15, 2023, 12:28pm UTC](https://forum.tiledb.com/t/showing-a-progress-bar-for-large-writes/611 "2023-08-15T12:28:50Z")
Hi, When doing large writes (\>10GB arrays) on S3, it would be useful to have a tqdm-like progress bar. Is this something that already exists? If not, what would be the easiest way for me to implement it myself? --- ## [Am I wrongly filling a sparse array that has a variable length string attribute? Or is this a bug?](https://forum.tiledb.com/t/am-i-wrongly-filling-a-sparse-array-that-has-a-variable-length-string-attribute-or-is-this-a-bug/293)
**Author:** [@imiller](https://forum.tiledb.com/u/imiller)\ **Replies:** 4\ **Last updated:** [August 15, 2023, 6:13am UTC](https://forum.tiledb.com/t/am-i-wrongly-filling-a-sparse-array-that-has-a-variable-length-string-attribute-or-is-this-a-bug/293 "2023-08-15T06:13:48Z")
Hello, I would like to create a sparse array that has a variable length string attribute, but I’m currently reading back invalid values when filling the array based on the tiledb examples. So I’m wondering if I’m wrongl… [Previous page](https://forum.tiledb.com/c/uncategorized/1.md) [Next page](https://forum.tiledb.com/c/uncategorized/1.md?page=2)