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https://issues.apache.org/jira/browse/TIKA-5025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18138821#comment-18138821
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ASF GitHub Bot commented on TIKA-5025:
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tballison merged PR #3519:
URL: https://github.com/apache/tika/pull/3519
> tika-server: set the request limits from the environment and the command line
> -----------------------------------------------------------------------------
>
> Key: TIKA-5025
> URL: https://issues.apache.org/jira/browse/TIKA-5025
> Project: Tika
> Issue Type: Improvement
> Reporter: Dominik Schmidt
> Priority: Major
>
> Since TIKA-4988 the Docker image runs a thumbnail server with nothing but -e
> TIKA_PRESETS=thumbnail. The first file over 1 GiB brings the config file
> back: maxRequestSizeBytes (TIKA-4991, default 1073741824) lives in the server
> block of the JSON config and can only be changed by mounting a file and
> passing -c. The same goes for its siblings maxInFlightRequestBytes,
> maxRequestReadMillis, maxResponseWriteMillis and maxQueuePauseMillis.
> Measured on 4.2.1-SNAPSHOT with a 1.46 GB MPEG-4 audiobook: PUT
> /unpack/preset/thumbnail answers 413 "Request body exceeds
> maxRequestSizeBytes" from the declared Content-Length alone; with {"server":
> {"maxRequestSizeBytes": 4294967296}, "presets": {"thumbnail": true}} the
> cover comes back in 4 s.
> Proposal: every setting of the server block can be given as
> TIKA_SERVER_<UPPER_SNAKE_CASE> in the environment, e.g.
> TIKA_SERVER_MAX_REQUEST_SIZE_BYTES=4294967296, and as --server-<kebab-case>
> <value> on the command line, following TIKA-4988: both are merged into the
> startup config before the front end and the forked workers load it, so the
> forks keep receiving the resolved config over stdin and never read the
> environment; command line and environment win over the file; an unknown key
> fails startup; the startup log says where a value came from. Sizes accept the
> plain byte count, suffixes (4g) would be nice but are a separate decision.
> Also: the 413 body should name the limit and where to raise it, as the preset
> 404 does, so an operator reads the answer instead of the server log.
> Docs: the server page's limits section and the Docker page get the env form
> next to the config form.
> Related: TIKA-4988 (TIKA_PRESETS), TIKA-4991 (the limits), TIKA-4909 (env
> interpolation inside a config file, which still needs the file).
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