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compress: count uncompressed input bytes #13287

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compress: count uncompressed input bytes #13287

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18 changes: 18 additions & 0 deletions plugins/compress/compress.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -349,6 +349,17 @@ compress_transform_init(TSCont contp, Data *data)
TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
}

static int compress_stat_bytes_in = TS_ERROR;

static void
init_compress_stats()
{
if (TS_ERROR == compress_stat_bytes_in) {
compress_stat_bytes_in =
TSStatCreate("proxy.process.plugin.compress.bytes_in", TS_RECORDDATATYPE_COUNTER, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);

@JosiahWI JosiahWI Jun 20, 2026

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This should be updated to the new metrics API, since TSStatCreate is deprecated for 11.

}
}

static void
compress_transform_one(Data *data, TSIOBufferReader upstream_reader, int amount)
{
Expand All @@ -371,6 +382,10 @@ compress_transform_one(Data *data, TSIOBufferReader upstream_reader, int amount)
upstream_length = amount;
}

if (TS_ERROR != compress_stat_bytes_in) {
TSStatIntIncrement(compress_stat_bytes_in, upstream_length);
}

#if HAVE_ZSTD_H
if (data->compression_type & COMPRESSION_TYPE_ZSTD && (data->compression_algorithms & ALGORITHM_ZSTD)) {
Zstd::transform_one(data, upstream_buffer, upstream_length);
Expand Down Expand Up @@ -1032,6 +1047,8 @@ TSPluginInit(int argc, const char *argv[])
fatal("the compress plugin failed to register");
}

Compress::init_compress_stats();

info("TSPluginInit %s", argv[0]);

if (!Compress::global_hidden_header_name) {
Expand Down Expand Up @@ -1060,6 +1077,7 @@ TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size)
{
CHECK_REMAP_API_COMPATIBILITY(api_info, errbuf, errbuf_size);
info("The compress plugin is successfully initialized");
Compress::init_compress_stats();
return TS_SUCCESS;
}

Expand Down