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Backup Extension Repositories 12336
The core and community extension repositories have backup servers (see duckdb-backup.org ): Repository Primary server Backup server core http://extensions.duckdb.org http://extensions.duckdb-backup.org community http://community-extensions. ... unaffected. Automatic Fallback Fallback is automatic: if the primary server is unreachable or returns a 5xx error, INSTALL retries the download from the backup server. No configuration is needed. A 4xx error (e.g., a non-existent extension) is reported ...
https://man.mtool.work/duckdb/2.0/operations_manual/backup_extension_repositorie...
Configuration 10093
DuckDB has a number of configuration options that can be used to change the behavior of the system. The configuration options can be set using either the SET statement or the PRAGMA statement . They can be reset to their original values usi ... for the HTTP proxy. VARCHAR http_proxy The HTTP proxy host. Defaults to the HTTP_PROXY environment variable. VARCHAR http_retries HTTP retries on I/O error UBIGINT 3 http_retry_backoff Backoff factor for exponentially increasing retry wait time FLOAT 4 ... .0 http_retry_wait_ms Time between retries UBIGINT 100 http_timeout HTTP timeout read/write/connection/retry (in seconds) UBIGINT 30 httpfs_client_implementation Sel ...
https://man.mtool.work/duckdb/2.0/configuration/overview.html
I/O 8401
Warning DuckDB ships with safe defaults. The configuration options described on this page are advanced options, so proceed with caution when changing them. Asynchronous I/O New Asynchronous I/O was introduced in DuckDB 2.0. Starting with v2 ... twork on a 64-core EC2 instance reading Parquet files from S3: SET read_ahead_depth = 64; SET async_threads = 48; SET http_retries = 8; SET http_retry_wait_ms = 50; SET http_retry_backoff = 2; As the row group is the unit of parallelism for Parquet scan ...
https://man.mtool.work/duckdb/2.0/data/io.html
S3 API Support 7831
The httpfs extension supports reading/writing/ globbing files on object storage servers using the S3 API. S3 offers a standard API to read and write to remote files (while regular http servers, predating S3, do not offer a common write API) ... edentials when a request fails with an HTTP 401 or 403 status (for example, when temporary credentials have expired), then retries the request. This behavior is controlled by the httpfs_enable_credential_refresh setting ( BOOLEAN , default true ): SET h ...
https://man.mtool.work/duckdb/2.0/core_extensions/httpfs/s3api.html
Iceberg Options 7262
This page lists the options of the iceberg extension: the parameters accepted by the Iceberg functions , the options of the ATTACH and CREATE SECRET statements used to connect to a catalog , and the global settings. ATTACH Options To make a ... E BOOLEAN true If disabled, files (data and metadata) created during the transaction will not be cleaned up on ROLLBACK or retries of the COMMIT . PURGE_REQUESTED BOOLEAN false Sends the PurgeRequested parameter when dropping a table. ENCODE_ENTIRE_PREF ...
https://man.mtool.work/duckdb/2.0/core_extensions/iceberg/iceberg_options.html
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