input_chunk: restrict appending chunks greater than size limit #9995
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Adds a configuration value that can be used instead of `FLB_INPUT_CHUNK_FS_MAX_SIZE` for the max size of an input chunk. Signed-off-by: braydonk <braydonk@google.com>
Perform a check during `input_log_append` that will verify that the passed buffer does not exceed the chunk max size. If that is the case, the chunk will be split into multiple sets of data that are as big as they can be before the chunk size limit to be appended separately. Signed-off-by: braydonk <braydonk@google.com>
braydonk
requested review from
edsiper,
leonardo-albertovich,
fujimotos and
koleini
as code owners
This was referenced Feb 24, 2025
braydonk
commented
Feb 24, 2025
| /* Send the events we have so far. */ | ||
| ret = flb_input_chunk_append_raw(ins, FLB_INPUT_LOGS, in_records, | ||
| tag, tag_len, | ||
| out_buf + in_buf_start, in_buf_size); |
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Egg on my face, I never realized that arithmetic on void pointers is illegal in compilers other than GCC; GCC handles void a special way, making sizeof(void) = 1. I'll need to think of another way to do this to allow for other compilers to work.
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This PR is a second attempt at restricting input chunk sizes by splitting up input buffers in
input_log_appendbased on the chunk max size. It also adds a companion configuration optionstorage.chunk_max_sizeto configure the max chunk size.Detailed information can be found in the companion gist I wrote, which contains explanations of this solution, the other solutions I tried that failed, and testing methodology. https://gist.github.com/braydonk/f32256488e989c4e807b0f9ba69bebbb
Issues: #9374, #1938
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If this is a change to packaging of containers or native binaries then please confirm it works for all targets.
ok-package-testlabel to test for all targets (requires maintainer to do).Documentation
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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.