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feat: add NuDB block size tests and improve error handling

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Incorporates changes from XRPLF/rippled PR #5468:

- Add getBlockSize() method to Backend interface
  Returns std::optional<std::size_t> for backends that support
  configurable block sizes (currently only NuDB)

- Update parseBlockSize() to throw exceptions instead of warnings
  Invalid block size configurations now throw std::runtime_error
  with descriptive error messages instead of silently using defaults

- Read existing database block size as default
  parseBlockSize() now checks existing nudb.key file for block size
  using nudb::block_size() before applying configuration

- Add comprehensive unit tests (NuDBFactory_test.cpp)
  Tests cover default sizes, valid sizes (4K-32K power-of-2),
  invalid sizes, error messages, power-of-2 validation, and
  data persistence across different block sizes

These changes improve configurability and error reporting while
maintaining backward compatibility.
This commit is contained in:
Nicholas Dudfield
2025-10-22 09:41:30 +07:00
parent d82f74576e
commit 3a18dbcc53
5 changed files with 398 additions and 17 deletions
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1
Builds/CMake/RippledCore.cmake
View File

@@ -965,6 +965,7 @@ if (tests)
src/test/nodestore/Basics_test.cpp
src/test/nodestore/DatabaseShard_test.cpp
src/test/nodestore/Database_test.cpp
src/test/nodestore/NuDBFactory_test.cpp
src/test/nodestore/Timing_test.cpp
src/test/nodestore/import_test.cpp
src/test/nodestore/varint_test.cpp

5
cfg/xahaud-example.cfg
View File

@@ -1129,9 +1129,8 @@
#
# Optional keys for NuDB only:
#
# nudb_block_size Block size in bytes for NuDB storage.
# Must be a power of 2 between 4096 and 32768.
# Default is 4096.
# nudb_block_size EXPERIMENTAL: Block size in bytes for NuDB storage.
# Must be a power of 2 between 4096 and 32768. Default is 4096.
#
# This parameter controls the fundamental storage unit
# size for NuDB's internal data structures. The choice

9
src/ripple/nodestore/Backend.h
View File

@@ -23,6 +23,7 @@
#include <ripple/nodestore/Types.h>
#include <atomic>
#include <cstdint>
#include <optional>
namespace ripple {
namespace NodeStore {
@@ -175,6 +176,14 @@ public:
virtual int
fdRequired() const = 0;
/** Get the block size for backends that support it
*/
virtual std::optional<std::size_t>
getBlockSize() const
{
return std::nullopt;
}
/** Returns read and write stats.
@note The Counters struct is specific to and only used

43
src/ripple/nodestore/backend/NuDBFactory.cpp
View File

@@ -18,6 +18,7 @@
//==============================================================================
#include <ripple/basics/contract.h>
#include <ripple/beast/core/LexicalCast.h>
#include <ripple/nodestore/Factory.h>
#include <ripple/nodestore/Manager.h>
#include <ripple/nodestore/impl/DecodedBlob.h>
@@ -31,7 +32,7 @@
#include <exception>
#include <memory>
#include <nudb/nudb.hpp>
#include <xrpl/beast/core/LexicalCast.h>
#include <sstream>
namespace ripple {
namespace NodeStore {
@@ -64,7 +65,7 @@ public:
, keyBytes_(keyBytes)
, burstSize_(burstSize)
, name_(get(keyValues, "path"))
, blockSize_(parseBlockSize(keyValues, journal))
, blockSize_(parseBlockSize(name_, keyValues, journal))
, deletePath_(false)
, scheduler_(scheduler)
{
@@ -84,7 +85,7 @@ public:
, keyBytes_(keyBytes)
, burstSize_(burstSize)
, name_(get(keyValues, "path"))
, blockSize_(parseBlockSize(keyValues, journal))
, blockSize_(parseBlockSize(name_, keyValues, journal))
, db_(context)
, deletePath_(false)
, scheduler_(scheduler)
@@ -114,6 +115,12 @@ public:
return name_;
}
std::optional<std::size_t>
getBlockSize() const override
{
return blockSize_;
}
void
open(bool createIfMissing, uint64_t appType, uint64_t uid, uint64_t salt)
override
@@ -369,9 +376,18 @@ public:
private:
static std::size_t
parseBlockSize(Section const& keyValues, beast::Journal journal)
parseBlockSize(
std::string const& name,
Section const& keyValues,
beast::Journal journal)
{
std::size_t blockSize = 4096; // Default 4K
using namespace boost::filesystem;
auto const folder = path(name);
auto const kp = (folder / "nudb.key").string();
std::size_t const defaultSize =
nudb::block_size(kp); // Default 4K from NuDB
std::size_t blockSize = defaultSize;
std::string blockSizeStr;
if (!get_if_exists(keyValues, "nudb_block_size", blockSizeStr))
@@ -388,11 +404,10 @@ private:
if (parsedBlockSize < 4096 || parsedBlockSize > 32768 ||
(parsedBlockSize & (parsedBlockSize - 1)) != 0)
{
JLOG(journal.warn())
<< "Invalid nudb_block_size: " << parsedBlockSize
<< ". Must be power of 2 between 4096 and 32768. Using "
"default 4096.";
return 4096;
std::stringstream s;
s << "Invalid nudb_block_size: " << parsedBlockSize
<< ". Must be power of 2 between 4096 and 32768.";
Throw<std::runtime_error>(s.str());
}
JLOG(journal.info())
@@ -402,10 +417,10 @@ private:
}
catch (std::exception const& e)
{
JLOG(journal.warn())
<< "Invalid nudb_block_size value: " << blockSizeStr
<< ". Using default 4096. Error: " << e.what();
return 4096;
std::stringstream s;
s << "Invalid nudb_block_size value: " << blockSizeStr
<< ". Error: " << e.what();
Throw<std::runtime_error>(s.str());
}
}
};

357
src/test/nodestore/NuDBFactory_test.cpp Normal file
View File

@@ -0,0 +1,357 @@
//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#include <test/nodestore/TestBase.h>
#include <test/unit_test/SuiteJournal.h>
#include <ripple/basics/BasicConfig.h>
#include <ripple/basics/ByteUtilities.h>
#include <ripple/beast/utility/temp_dir.h>
#include <ripple/nodestore/DummyScheduler.h>
#include <ripple/nodestore/Manager.h>
#include <memory>
#include <sstream>
namespace ripple {
namespace NodeStore {
class NuDBFactory_test : public TestBase
{
private:
// Helper function to create a Section with specified parameters
Section
createSection(std::string const& path, std::string const& blockSize = "")
{
Section params;
params.set("type", "nudb");
params.set("path", path);
if (!blockSize.empty())
params.set("nudb_block_size", blockSize);
return params;
}
// Helper function to create a backend and test basic functionality
bool
testBackendFunctionality(
Section const& params,
std::size_t expectedBlocksize)
{
try
{
DummyScheduler scheduler;
test::SuiteJournal journal("NuDBFactory_test", *this);
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
if (!BEAST_EXPECT(backend))
return false;
if (!BEAST_EXPECT(backend->getBlockSize() == expectedBlocksize))
return false;
backend->open();
if (!BEAST_EXPECT(backend->isOpen()))
return false;
// Test basic store/fetch functionality
auto batch = createPredictableBatch(10, 12345);
storeBatch(*backend, batch);
Batch copy;
fetchCopyOfBatch(*backend, &copy, batch);
backend->close();
return areBatchesEqual(batch, copy);
}
catch (...)
{
return false;
}
}
// Helper function to test log messages
void
testLogMessage(
Section const& params,
beast::severities::Severity level,
std::string const& expectedMessage)
{
test::StreamSink sink(level);
beast::Journal journal(sink);
DummyScheduler scheduler;
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
std::string logOutput = sink.messages().str();
BEAST_EXPECT(logOutput.find(expectedMessage) != std::string::npos);
}
public:
void
testDefaultBlockSize()
{
testcase("Default block size (no nudb_block_size specified)");
beast::temp_dir tempDir;
auto params = createSection(tempDir.path());
// Should work with default 4096 block size
BEAST_EXPECT(testBackendFunctionality(params, 4096));
}
void
testValidBlockSizes()
{
testcase("Valid block sizes");
std::vector<std::size_t> validSizes = {4096, 8192, 16384, 32768};
for (auto const& size : validSizes)
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), to_string(size));
BEAST_EXPECT(testBackendFunctionality(params, size));
}
}
void
testInvalidBlockSizes()
{
testcase("Invalid block sizes");
std::vector<std::string> invalidSizes = {
"2048", // Too small
"1024", // Too small
"65536", // Too large
"131072", // Too large
"5000", // Not power of 2
"6000", // Not power of 2
"10000", // Not power of 2
"0", // Zero
"-1", // Negative
"abc", // Non-numeric
"4k", // Invalid format
"4096.5" // Decimal
};
for (auto const& size : invalidSizes)
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), size);
DummyScheduler scheduler;
test::SuiteJournal journal("NuDBFactory_test", *this);
// Should throw exception for invalid sizes
try
{
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
// If we get here, the test failed
BEAST_EXPECT(false);
}
catch (std::exception const& e)
{
// Expected exception
std::string error{e.what()};
BEAST_EXPECT(
error.find("Invalid nudb_block_size") != std::string::npos);
}
}
}
void
testLogMessages()
{
testcase("Log message verification");
// Test valid custom block size logging
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), "8192");
testLogMessage(
params,
beast::severities::kInfo,
"Using custom NuDB block size: 8192");
}
// Test invalid block size exception message
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), "5000");
test::StreamSink sink(beast::severities::kWarning);
beast::Journal journal(sink);
DummyScheduler scheduler;
try
{
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
fail();
}
catch (std::exception const& e)
{
std::string logOutput{e.what()};
BEAST_EXPECT(
logOutput.find("Invalid nudb_block_size: 5000") !=
std::string::npos);
BEAST_EXPECT(
logOutput.find(
"Must be power of 2 between 4096 and 32768") !=
std::string::npos);
}
}
// Test non-numeric value exception message
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), "invalid");
test::StreamSink sink(beast::severities::kWarning);
beast::Journal journal(sink);
DummyScheduler scheduler;
try
{
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
fail();
}
catch (std::exception const& e)
{
std::string logOutput{e.what()};
BEAST_EXPECT(
logOutput.find("Invalid nudb_block_size value: invalid") !=
std::string::npos);
}
}
}
void
testPowerOfTwoValidation()
{
testcase("Power of 2 validation logic");
// Test edge cases around valid range
std::vector<std::pair<std::string, bool>> testCases = {
{"4095", false}, // Just below minimum
{"4096", true}, // Minimum valid
{"4097", false}, // Just above minimum, not power of 2
{"8192", true}, // Valid power of 2
{"8193", false}, // Just above valid power of 2
{"16384", true}, // Valid power of 2
{"32768", true}, // Maximum valid
{"32769", false}, // Just above maximum
{"65536", false} // Power of 2 but too large
};
for (auto const& [size, shouldWork] : testCases)
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), size);
test::StreamSink sink(beast::severities::kWarning);
beast::Journal journal(sink);
DummyScheduler scheduler;
try
{
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
BEAST_EXPECT(shouldWork);
}
catch (std::exception const& e)
{
std::string logOutput{e.what()};
BEAST_EXPECT(
logOutput.find("Invalid nudb_block_size") !=
std::string::npos);
BEAST_EXPECT(!shouldWork);
}
}
}
void
testDataPersistence()
{
testcase("Data persistence with different block sizes");
std::vector<std::string> blockSizes = {
"4096", "8192", "16384", "32768"};
for (auto const& size : blockSizes)
{
beast::temp_dir tempDir;
auto params = createSection(tempDir.path(), size);
DummyScheduler scheduler;
test::SuiteJournal journal("NuDBFactory_test", *this);
// Create test data
auto batch = createPredictableBatch(50, 54321);
// Store data
{
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
backend->open();
storeBatch(*backend, batch);
backend->close();
}
// Retrieve data in new backend instance
{
auto backend = Manager::instance().make_Backend(
params, megabytes(4), scheduler, journal);
backend->open();
Batch copy;
fetchCopyOfBatch(*backend, &copy, batch);
BEAST_EXPECT(areBatchesEqual(batch, copy));
backend->close();
}
}
}
void
run() override
{
testDefaultBlockSize();
testValidBlockSizes();
testInvalidBlockSizes();
testLogMessages();
testPowerOfTwoValidation();
testDataPersistence();
}
};
BEAST_DEFINE_TESTSUITE(NuDBFactory, ripple_core, ripple);
} // namespace NodeStore
} // namespace ripple