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[fix](be) Report stream load size limits in MiB #66224

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[fix](be) Report stream load size limits in MiB #66224

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fcd414a
[fix](be) Clarify JSON stream load size limit units
0AyanamiRei Jul 28, 2026
09fa875
[fix](be) Report stream load size limits in MiB
0AyanamiRei Jul 29, 2026
4cf9d16
[fix](be) Refine stream load size limit messages
0AyanamiRei Jul 30, 2026
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10 changes: 7 additions & 3 deletions be/src/service/http/action/http_stream.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,8 @@ using namespace ErrorCode;

namespace {

constexpr size_t MEBIBYTE = 1024 * 1024;

bool is_compressed_file_scan(const TPipelineFragmentParams& params) {
if (!params.__isset.file_scan_params) {
return false;
Expand Down Expand Up @@ -231,7 +233,8 @@ Status HttpStreamAction::_on_header(HttpRequest* http_req, std::shared_ptr<Strea
// TODO(zs) : need Need to request an FE to obtain information such as format
// check content length
ctx->body_bytes = 0;
size_t csv_max_body_bytes = config::streaming_load_max_mb * 1024 * 1024;
const auto csv_max_body_mb = config::streaming_load_max_mb;
size_t csv_max_body_bytes = csv_max_body_mb * MEBIBYTE;
if (!http_req->header(HttpHeaders::CONTENT_LENGTH).empty()) {
try {
ctx->body_bytes = std::stol(http_req->header(HttpHeaders::CONTENT_LENGTH));
Expand All @@ -243,9 +246,10 @@ Status HttpStreamAction::_on_header(HttpRequest* http_req, std::shared_ptr<Strea
if (ctx->body_bytes > csv_max_body_bytes) {
LOG(WARNING) << "body exceed max size." << ctx->brief();
return Status::Error<ErrorCode::EXCEEDED_LIMIT>(
"body size {} exceed BE's conf `streaming_load_max_mb` {}. increase it if you "
"body size {:.2f} MiB exceeds the limit of {} MiB set by BE config "
"`streaming_load_max_mb`. Increase it if you "
"are sure this load is reasonable",
ctx->body_bytes, csv_max_body_bytes);
static_cast<double>(ctx->body_bytes) / MEBIBYTE, csv_max_body_mb);
}
}

Expand Down
19 changes: 12 additions & 7 deletions be/src/service/http/action/stream_load.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,7 @@ bvar::LatencyRecorder g_stream_load_commit_and_publish_latency_ms("stream_load",
"commit_and_publish_ms");

static constexpr size_t MIN_CHUNK_SIZE = 64 * 1024;
static constexpr size_t MEBIBYTE = 1024 * 1024;
static const std::string CHUNK = "chunked";
static const std::string OFF_MODE = "off_mode";
static const std::string SYNC_MODE = "sync_mode";
Expand Down Expand Up @@ -311,8 +312,10 @@ Status StreamLoadAction::_on_header(HttpRequest* http_req, std::shared_ptr<Strea

// check content length
ctx->body_bytes = 0;
size_t csv_max_body_bytes = config::streaming_load_max_mb * 1024 * 1024;
size_t json_max_body_bytes = config::streaming_load_json_max_mb * 1024 * 1024;
const auto csv_max_body_mb = config::streaming_load_max_mb;
size_t csv_max_body_bytes = csv_max_body_mb * MEBIBYTE;
const auto json_max_body_mb = config::streaming_load_json_max_mb;
size_t json_max_body_bytes = json_max_body_mb * MEBIBYTE;
bool read_json_by_line = false;
if (!http_req->header(HTTP_READ_JSON_BY_LINE).empty()) {
if (iequal(http_req->header(HTTP_READ_JSON_BY_LINE), "true")) {
Expand All @@ -330,17 +333,19 @@ Status StreamLoadAction::_on_header(HttpRequest* http_req, std::shared_ptr<Strea
if ((ctx->format == TFileFormatType::FORMAT_JSON) &&
(ctx->body_bytes > json_max_body_bytes) && !read_json_by_line) {
return Status::Error<ErrorCode::EXCEEDED_LIMIT>(
"json body size {} exceed BE's conf `streaming_load_json_max_mb` {}. increase "
"it if you are sure this load is reasonable",
ctx->body_bytes, json_max_body_bytes);
"json body size {:.2f} MiB exceeds the limit of {} MiB set by BE's conf "

@github-actions github-actions Bot Jul 30, 2026

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The byte comparison is exact, but {:.2f} can round away the excess that triggered it. With a 100 MiB limit, Content-Length: 104857601 is rejected while this renders 100.00 MiB exceeds the limit of 100 MiB; the CSV branch and HttpStreamAction have the same issue. Please retain the exact byte count (for example alongside the friendly MiB value), or use a rendering policy that cannot display an over-limit value as equal, and add limit-plus-one coverage for all three paths.

"streaming_load_json_max_mb. Increase it if you are sure "
"this load is reasonable",
static_cast<double>(ctx->body_bytes) / MEBIBYTE, json_max_body_mb);
}
// csv max body size
else if (ctx->body_bytes > csv_max_body_bytes) {
LOG(WARNING) << "body exceed max size." << ctx->brief();
return Status::Error<ErrorCode::EXCEEDED_LIMIT>(
"body size {} exceed BE's conf `streaming_load_max_mb` {}. increase it if you "
"body size {:.2f} MiB exceeds the limit of {} MiB set by BE's conf "
"streaming_load_max_mb. Increase it if you "
"are sure this load is reasonable",
ctx->body_bytes, csv_max_body_bytes);
static_cast<double>(ctx->body_bytes) / MEBIBYTE, csv_max_body_mb);
}
} else {
#ifndef BE_TEST
Expand Down
71 changes: 70 additions & 1 deletion be/test/service/http/stream_load_test.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,9 @@
#include "event2/http_struct.h"
#include "evhttp.h"
#include "load/group_commit/wal/wal_manager.h"
#include "load/stream_load/stream_load_context.h"
#include "runtime/exec_env.h"
#include "service/http/action/http_stream.h"
#include "service/http/ev_http_server.h"
#include "service/http/http_channel.h"
#include "service/http/http_common.h"
Expand All @@ -37,6 +39,7 @@
#include "service/http/http_headers.h"
#include "service/http/http_request.h"
#include "service/http/utils.h"
#include "util/defer_op.h"

namespace doris {

Expand Down Expand Up @@ -123,4 +126,70 @@ TEST_F(StreamLoadTest, TestHeader) {
evhttp_request_free(evhttp_req);
}
}
} // namespace doris

TEST_F(StreamLoadTest, JsonBodySizeLimitErrorUsesMiB) {
const auto original_json_max_mb = config::streaming_load_json_max_mb;
Defer restore_json_max_mb {
[original_json_max_mb] { config::streaming_load_json_max_mb = original_json_max_mb; }};
config::streaming_load_json_max_mb = 100;

auto* evhttp_req = evhttp_request_new(nullptr, nullptr);
HttpRequest req(evhttp_req);
req.set_header(HttpHeaders::AUTHORIZATION, "Basic cm9vdDo=");
req.set_header(HTTP_FORMAT_KEY, "json");
req.set_header(HttpHeaders::CONTENT_LENGTH, "113403999");

StreamLoadAction action(nullptr);
auto ctx = std::make_shared<StreamLoadContext>(nullptr);
auto status = action._on_header(&req, ctx);

EXPECT_TRUE(status.is<ErrorCode::EXCEEDED_LIMIT>());
EXPECT_EQ(status.to_string_no_stack(),
"[E-217]json body size 108.15 MiB exceeds the limit of 100 MiB set by BE's conf "
"streaming_load_json_max_mb. Increase it if you are sure this load is reasonable");
evhttp_request_free(evhttp_req);
}

TEST_F(StreamLoadTest, CsvBodySizeLimitErrorUsesMiB) {
const auto original_max_mb = config::streaming_load_max_mb;
Defer restore_max_mb {[original_max_mb] { config::streaming_load_max_mb = original_max_mb; }};
config::streaming_load_max_mb = 100;

auto* evhttp_req = evhttp_request_new(nullptr, nullptr);
HttpRequest req(evhttp_req);
req.set_header(HttpHeaders::AUTHORIZATION, "Basic cm9vdDo=");
req.set_header(HTTP_FORMAT_KEY, "csv");
req.set_header(HttpHeaders::CONTENT_LENGTH, "113403999");

StreamLoadAction action(nullptr);
auto ctx = std::make_shared<StreamLoadContext>(nullptr);
auto status = action._on_header(&req, ctx);

EXPECT_TRUE(status.is<ErrorCode::EXCEEDED_LIMIT>());
EXPECT_EQ(status.to_string_no_stack(),
"[E-217]body size 108.15 MiB exceeds the limit of 100 MiB set by BE's conf "
"streaming_load_max_mb. Increase it if you are sure this load is reasonable");
evhttp_request_free(evhttp_req);
}

TEST_F(StreamLoadTest, HttpStreamBodySizeLimitErrorUsesMiB) {
const auto original_max_mb = config::streaming_load_max_mb;
Defer restore_max_mb {[original_max_mb] { config::streaming_load_max_mb = original_max_mb; }};
config::streaming_load_max_mb = 100;

auto* evhttp_req = evhttp_request_new(nullptr, nullptr);
HttpRequest req(evhttp_req);
req.set_header(HttpHeaders::AUTHORIZATION, "Basic cm9vdDo=");
req.set_header(HttpHeaders::CONTENT_LENGTH, "113403999");

HttpStreamAction action(nullptr);
auto ctx = std::make_shared<StreamLoadContext>(nullptr);
auto status = action._on_header(&req, ctx);

EXPECT_TRUE(status.is<ErrorCode::EXCEEDED_LIMIT>());
EXPECT_EQ(status.to_string_no_stack(),
"[E-217]body size 108.15 MiB exceeds the limit of 100 MiB set by BE config "
"`streaming_load_max_mb`. Increase it if you are sure this load is reasonable");
evhttp_request_free(evhttp_req);
}
} // namespace doris
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