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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
#ifndef ROCKSDB_LITE
#ifndef GFLAGS
#include <cstdio>
int main() {
fprintf(stderr, "Please install gflags to run io_tracer_parser_test\n");
return 0;
}
#else
#include <string>
#include <vector>
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/status.h"
#include "rocksdb/trace_reader_writer.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "tools/io_tracer_parser_tool.h"
namespace ROCKSDB_NAMESPACE {
namespace {
const int kMaxArgCount = 100;
const size_t kArgBufferSize = 100000;
} // namespace
class IOTracerParserTest : public testing::Test {
public:
IOTracerParserTest() {
test_path_ = test::PerThreadDBPath("io_tracer_parser_test");
env_ = ROCKSDB_NAMESPACE::Env::Default();
EXPECT_OK(env_->CreateDirIfMissing(test_path_));
trace_file_path_ = test_path_ + "/io_trace_file";
dbname_ = test_path_ + "/db";
Options options;
options.create_if_missing = true;
EXPECT_OK(DB::Open(options, dbname_, &db_));
}
~IOTracerParserTest() {
if (env_->FileExists(trace_file_path_).ok()) {
EXPECT_OK(env_->DeleteFile(trace_file_path_));
}
if (db_ != nullptr) {
Options options;
options.env = env_;
delete db_;
db_ = nullptr;
EXPECT_OK(DestroyDB(dbname_, options));
}
EXPECT_OK(env_->DeleteDir(test_path_));
}
void GenerateIOTrace() {
WriteOptions write_opt;
TraceOptions trace_opt;
std::unique_ptr<TraceWriter> trace_writer;
ASSERT_OK(NewFileTraceWriter(env_, env_options_, trace_file_path_,
&trace_writer));
ASSERT_OK(db_->StartIOTrace(trace_opt, std::move(trace_writer)));
for (int i = 0; i < 10; i++) {
ASSERT_OK(db_->Put(write_opt, "key_" + std::to_string(i),
"value_" + std::to_string(i)));
ASSERT_OK(db_->Flush(FlushOptions()));
}
ASSERT_OK(db_->EndIOTrace());
ASSERT_OK(env_->FileExists(trace_file_path_));
}
void RunIOTracerParserTool() {
std::vector<std::string> params = {"./io_tracer_parser",
"-io_trace_file=" + trace_file_path_};
char arg_buffer[kArgBufferSize];
char* argv[kMaxArgCount];
int argc = 0;
int cursor = 0;
for (const auto& arg : params) {
ASSERT_LE(cursor + arg.size() + 1, kArgBufferSize);
ASSERT_LE(argc + 1, kMaxArgCount);
snprintf(arg_buffer + cursor, arg.size() + 1, "%s", arg.c_str());
argv[argc++] = arg_buffer + cursor;
cursor += static_cast<int>(arg.size()) + 1;
}
ASSERT_EQ(0, ROCKSDB_NAMESPACE::io_tracer_parser(argc, argv));
}
DB* db_;
Env* env_;
EnvOptions env_options_;
std::string trace_file_path_;
std::string output_file_;
std::string test_path_;
std::string dbname_;
};
TEST_F(IOTracerParserTest, InvalidArguments) {
{
std::vector<std::string> params = {"./io_tracer_parser"};
char arg_buffer[kArgBufferSize];
char* argv[kMaxArgCount];
int argc = 0;
int cursor = 0;
for (const auto& arg : params) {
ASSERT_LE(cursor + arg.size() + 1, kArgBufferSize);
ASSERT_LE(argc + 1, kMaxArgCount);
snprintf(arg_buffer + cursor, arg.size() + 1, "%s", arg.c_str());
argv[argc++] = arg_buffer + cursor;
cursor += static_cast<int>(arg.size()) + 1;
}
ASSERT_EQ(1, ROCKSDB_NAMESPACE::io_tracer_parser(argc, argv));
}
}
TEST_F(IOTracerParserTest, DumpAndParseIOTraceRecords) {
GenerateIOTrace();
RunIOTracerParserTool();
}
TEST_F(IOTracerParserTest, NoRecordingAfterEndIOTrace) {
uint64_t file_size = 0;
// Generate IO trace records and parse them.
{
GenerateIOTrace();
RunIOTracerParserTool();
ASSERT_OK(env_->GetFileSize(trace_file_path_, &file_size));
}
// Once DB::EndIOTrace is invoked in GenerateIOTrace(), no new records should
// be appended.
{
WriteOptions write_opt;
for (int i = 10; i < 20; i++) {
ASSERT_OK(db_->Put(write_opt, "key_" + std::to_string(i),
"value_" + std::to_string(i)));
ASSERT_OK(db_->Flush(FlushOptions()));
}
}
uint64_t new_file_size = 0;
ASSERT_OK(env_->GetFileSize(trace_file_path_, &new_file_size));
ASSERT_EQ(file_size, new_file_size);
}
TEST_F(IOTracerParserTest, NoRecordingBeforeStartIOTrace) {
{
WriteOptions write_opt;
for (int i = 10; i < 20; i++) {
ASSERT_OK(db_->Put(write_opt, "key_" + std::to_string(i),
"value_" + std::to_string(i)));
ASSERT_OK(db_->Flush(FlushOptions()));
}
// IO trace file doesn't exist
ASSERT_NOK(env_->FileExists(trace_file_path_));
}
// Generate IO trace records and parse them.
{
GenerateIOTrace();
RunIOTracerParserTool();
}
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#endif // GFLAGS
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "io_tracer_parser_test is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // ROCKSDB_LITE
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