Function LoadFile

src/kudu/tablet/compaction_policy-test.cc:246–265

}

static RowSetVector LoadFile(const string& name) {
  RowSetVector rowsets;
  const string path = JoinPathSegments(GetTestExecutableDirectory(), name);
  faststring data;
  CHECK_OK_PREPEND(ReadFileToString(Env::Default(), path, &data),
                   strings::Substitute("unable to load test data file $0", path));
  const vector<string> lines = strings::Split(data.ToString(), "\n");
  for (const auto& line : lines) {
    if (line.empty() || line[0] == '#') continue;
    const vector<string> fields = strings::Split(line, "\t");
    CHECK_EQ(3, fields.size()) << "Expected 3 fields on line: " << line;
    const int size_mb = ParseLeadingInt32Value(fields[0], -1);
    CHECK_GE(size_mb, 1) << "Expected size at least 1MB on line: " << line;
    rowsets.emplace_back(new MockDiskRowSet(fields[1] /* min key */,
                                            fields[2] /* max key */,
                                            size_mb * 1024 * 1024));
  }

  return rowsets;
}

// Realistic test using data scraped from a tablet containing 200GB+ of YCSB
// data. This test can be used as a benchmark for optimizing the compaction