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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/catalog_raii.h"
#include "mongo/db/s/collection_sharding_runtime.h"
#include "mongo/db/s/operation_sharding_state.h"
#include "mongo/s/catalog/type_chunk.h"
#include "mongo/s/shard_server_test_fixture.h"
namespace mongo {
namespace {
const NamespaceString kNss("TestDB", "TestColl");
class CollectionMetadataFilteringTest : public ShardServerTestFixture {
protected:
void setUp() override {
ShardServerTestFixture::setUp();
_manager = std::make_shared<MetadataManager>(getServiceContext(), kNss, executor().get());
}
/**
* Prepares the CSS for 'kNss' and the standalone '_manager' to have their metadata be a history
* array populated as follows:
* chunk1 - [min, -100)
* chunk2 - [100, 0)
* chunk3 - [0, 100)
* chunk4 - [100, max)
*
* and the history:
* time (now,75) shard0(chunk1, chunk3) shard1(chunk2, chunk4)
* time (75,25) shard0(chunk2, chunk4) shard1(chunk1, chunk3)
* time (25,0) - no history
*/
void prepareTestData() {
const OID epoch = OID::gen();
const ShardKeyPattern shardKeyPattern(BSON("_id" << 1));
auto rt = RoutingTableHistory::makeNew(
kNss, UUID::gen(), shardKeyPattern.getKeyPattern(), nullptr, false, epoch, [&] {
ChunkVersion version(1, 0, epoch);
ChunkType chunk1(kNss,
{shardKeyPattern.getKeyPattern().globalMin(), BSON("_id" << -100)},
version,
{"0"});
chunk1.setHistory({ChunkHistory(Timestamp(75, 0), ShardId("0")),
ChunkHistory(Timestamp(25, 0), ShardId("1"))});
version.incMinor();
ChunkType chunk2(kNss, {BSON("_id" << -100), BSON("_id" << 0)}, version, {"1"});
chunk2.setHistory({ChunkHistory(Timestamp(75, 0), ShardId("1")),
ChunkHistory(Timestamp(25, 0), ShardId("0"))});
version.incMinor();
ChunkType chunk3(kNss, {BSON("_id" << 0), BSON("_id" << 100)}, version, {"0"});
chunk3.setHistory({ChunkHistory(Timestamp(75, 0), ShardId("0")),
ChunkHistory(Timestamp(25, 0), ShardId("1"))});
version.incMinor();
ChunkType chunk4(kNss,
{BSON("_id" << 100), shardKeyPattern.getKeyPattern().globalMax()},
version,
{"1"});
chunk4.setHistory({ChunkHistory(Timestamp(75, 0), ShardId("1")),
ChunkHistory(Timestamp(25, 0), ShardId("0"))});
version.incMinor();
return std::vector<ChunkType>{chunk1, chunk2, chunk3, chunk4};
}());
auto cm = std::make_shared<ChunkManager>(rt, boost::none);
ASSERT_EQ(4, cm->numChunks());
{
AutoGetCollection autoColl(operationContext(), kNss, MODE_X);
auto* const css = CollectionShardingRuntime::get(operationContext(), kNss);
css->setFilteringMetadata(operationContext(), CollectionMetadata(cm, ShardId("0")));
}
_manager->setFilteringMetadata(CollectionMetadata(cm, ShardId("0")));
auto& oss = OperationShardingState::get(operationContext());
const auto version = cm->getVersion(ShardId("0"));
BSONObjBuilder builder;
version.appendToCommand(&builder);
oss.initializeClientRoutingVersions(kNss, builder.obj());
}
std::shared_ptr<MetadataManager> _manager;
};
// Verifies that right set of documents is visible
TEST_F(CollectionMetadataFilteringTest, FilterDocumentsInTheFuture) {
prepareTestData();
const auto testFn = [](const ScopedCollectionMetadata& metadata) {
ASSERT_TRUE(metadata->keyBelongsToMe(BSON("_id" << -500)));
ASSERT_TRUE(metadata->keyBelongsToMe(BSON("_id" << 50)));
ASSERT_FALSE(metadata->keyBelongsToMe(BSON("_id" << -50)));
ASSERT_FALSE(metadata->keyBelongsToMe(BSON("_id" << 500)));
};
{
BSONObj readConcern = BSON("readConcern" << BSON("level"
<< "snapshot"
<< "atClusterTime" << Timestamp(100, 0)));
auto&& readConcernArgs = repl::ReadConcernArgs::get(operationContext());
ASSERT_OK(readConcernArgs.initialize(readConcern["readConcern"]));
AutoGetCollection autoColl(operationContext(), kNss, MODE_IS);
auto* const css = CollectionShardingState::get(operationContext(), kNss);
testFn(css->getOrphansFilter(operationContext(), true /* isCollection */));
}
{
const auto scm = _manager->getActiveMetadata(_manager, LogicalTime(Timestamp(100, 0)));
testFn(*scm);
}
}
// Verifies that a different set of documents is visible for a timestamp in the past
TEST_F(CollectionMetadataFilteringTest, FilterDocumentsInThePast) {
prepareTestData();
const auto testFn = [](const ScopedCollectionMetadata& metadata) {
ASSERT_FALSE(metadata->keyBelongsToMe(BSON("_id" << -500)));
ASSERT_FALSE(metadata->keyBelongsToMe(BSON("_id" << 50)));
ASSERT_TRUE(metadata->keyBelongsToMe(BSON("_id" << -50)));
ASSERT_TRUE(metadata->keyBelongsToMe(BSON("_id" << 500)));
};
{
BSONObj readConcern = BSON("readConcern" << BSON("level"
<< "snapshot"
<< "atClusterTime" << Timestamp(50, 0)));
auto&& readConcernArgs = repl::ReadConcernArgs::get(operationContext());
ASSERT_OK(readConcernArgs.initialize(readConcern["readConcern"]));
AutoGetCollection autoColl(operationContext(), kNss, MODE_IS);
auto* const css = CollectionShardingState::get(operationContext(), kNss);
testFn(css->getOrphansFilter(operationContext(), true /* isCollection */));
}
{
const auto scm = _manager->getActiveMetadata(_manager, LogicalTime(Timestamp(50, 0)));
testFn(*scm);
}
}
// Verifies that when accessing too far into the past we get the stale error
TEST_F(CollectionMetadataFilteringTest, FilterDocumentsTooFarInThePastThrowsStaleChunkHistory) {
prepareTestData();
const auto testFn = [](const ScopedCollectionMetadata& metadata) {
ASSERT_THROWS_CODE(metadata->keyBelongsToMe(BSON("_id" << -500)),
AssertionException,
ErrorCodes::StaleChunkHistory);
ASSERT_THROWS_CODE(metadata->keyBelongsToMe(BSON("_id" << 50)),
AssertionException,
ErrorCodes::StaleChunkHistory);
ASSERT_THROWS_CODE(metadata->keyBelongsToMe(BSON("_id" << -50)),
AssertionException,
ErrorCodes::StaleChunkHistory);
ASSERT_THROWS_CODE(metadata->keyBelongsToMe(BSON("_id" << 500)),
AssertionException,
ErrorCodes::StaleChunkHistory);
};
{
BSONObj readConcern = BSON("readConcern" << BSON("level"
<< "snapshot"
<< "atClusterTime" << Timestamp(10, 0)));
auto&& readConcernArgs = repl::ReadConcernArgs::get(operationContext());
ASSERT_OK(readConcernArgs.initialize(readConcern["readConcern"]));
AutoGetCollection autoColl(operationContext(), kNss, MODE_IS);
auto* const css = CollectionShardingState::get(operationContext(), kNss);
testFn(css->getOrphansFilter(operationContext(), true /* isCollection */));
}
{
const auto scm = _manager->getActiveMetadata(_manager, LogicalTime(Timestamp(10, 0)));
testFn(*scm);
}
}
} // namespace
} // namespace mongo
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