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collection_metadata_test.cpp
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/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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 <boost/scoped_ptr.hpp>
#include <string>
#include <vector>
#include "mongo/db/jsobj.h"
#include "mongo/dbtests/mock/mock_conn_registry.h"
#include "mongo/dbtests/mock/mock_remote_db_server.h"
#include "mongo/s/chunk_version.h"
#include "mongo/s/collection_metadata.h"
#include "mongo/s/metadata_loader.h"
#include "mongo/s/range_arithmetic.h"
#include "mongo/s/type_chunk.h"
#include "mongo/s/type_collection.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/net/hostandport.h"
namespace {
using boost::scoped_ptr;
using mongo::BSONObj;
using mongo::BSONArray;
using mongo::ChunkType;
using mongo::ConnectionString;
using mongo::CollectionMetadata;
using mongo::CollectionType;
using mongo::Date_t;
using mongo::HostAndPort;
using mongo::KeyRange;
using mongo::MAXKEY;
using mongo::MetadataLoader;
using mongo::MINKEY;
using mongo::OID;
using mongo::ChunkVersion;
using mongo::MockConnRegistry;
using mongo::MockRemoteDBServer;
using mongo::RangeVector;
using mongo::Status;
using std::auto_ptr;
using std::make_pair;
using std::string;
using std::vector;
const std::string CONFIG_HOST_PORT = "$dummy_config:27017";
class NoChunkFixture : public mongo::unittest::Test {
protected:
void setUp() {
_dummyConfig.reset( new MockRemoteDBServer( CONFIG_HOST_PORT ) );
mongo::ConnectionString::setConnectionHook( MockConnRegistry::get()->getConnStrHook() );
MockConnRegistry::get()->addServer( _dummyConfig.get() );
OID epoch = OID::gen();
CollectionType collType;
collType.setNS( "test.foo" );
collType.setKeyPattern( BSON("a" << 1) );
collType.setUnique( false );
collType.setUpdatedAt( 1ULL );
collType.setEpoch( epoch );
string errMsg;
ASSERT( collType.isValid( &errMsg ) );
_dummyConfig->insert( CollectionType::ConfigNS, collType.toBSON() );
// Need a chunk on another shard, otherwise the chunks are invalid in general and we
// can't load metadata
ChunkType chunkType;
chunkType.setNS( "test.foo");
chunkType.setShard( "shard0001" );
chunkType.setMin( BSON( "a" << MINKEY ) );
chunkType.setMax( BSON( "a" << MAXKEY ) );
chunkType.setVersion( ChunkVersion( 1, 0, epoch ) );
chunkType.setName( OID::gen().toString() );
ASSERT( chunkType.isValid( &errMsg ) );
_dummyConfig->insert( ChunkType::ConfigNS, chunkType.toBSON() );
ConnectionString configLoc( CONFIG_HOST_PORT );
MetadataLoader loader( configLoc );
Status status = loader.makeCollectionMetadata( "test.foo",
"shard0000",
NULL,
&_metadata );
ASSERT( status.isOK() );
ASSERT_EQUALS( 0u, _metadata.getNumChunks() );
}
void tearDown() {
MockConnRegistry::get()->clear();
}
const CollectionMetadata& getCollMetadata() const {
return _metadata;
}
private:
scoped_ptr<MockRemoteDBServer> _dummyConfig;
CollectionMetadata _metadata;
};
TEST_F(NoChunkFixture, BasicBelongsToMe) {
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << MINKEY)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << 10)) );
}
TEST_F(NoChunkFixture, CompoundKeyBelongsToMe) {
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << 1 << "b" << 2)) );
}
TEST_F(NoChunkFixture, IsKeyValid) {
ASSERT_TRUE( getCollMetadata().isValidKey( BSON( "a" << "abcde" ) ) );
ASSERT_TRUE( getCollMetadata().isValidKey( BSON( "a" << 3 ) ) );
ASSERT_FALSE( getCollMetadata().isValidKey( BSON( "a" << "abcde" << "b" << 1 ) ) );
ASSERT_FALSE( getCollMetadata().isValidKey( BSON( "c" << "abcde" ) ) );
}
TEST_F(NoChunkFixture, getNextFromEmpty) {
ChunkType nextChunk;
ASSERT( !getCollMetadata().getNextChunk( getCollMetadata().getMinKey(), &nextChunk ) );
}
TEST_F(NoChunkFixture, FirstChunkClonePlus) {
ChunkType chunk;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
string errMsg;
const ChunkVersion version( 99, 0, OID() );
scoped_ptr<CollectionMetadata> cloned( getCollMetadata().clonePlusChunk( chunk,
version,
&errMsg ) );
ASSERT( errMsg.empty() );
ASSERT_EQUALS( 1u, cloned->getNumChunks() );
ASSERT_EQUALS( cloned->getShardVersion().toLong(), version.toLong() );
ASSERT_EQUALS( cloned->getCollVersion().toLong(), version.toLong() );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 15)) );
}
TEST_F(NoChunkFixture, MustHaveVersionForFirstChunk) {
ChunkType chunk;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
string errMsg;
scoped_ptr<CollectionMetadata> cloned( getCollMetadata() // br
.clonePlusChunk( chunk, ChunkVersion( 0, 0, OID() ), &errMsg ) );
ASSERT( cloned == NULL );
ASSERT_FALSE( errMsg.empty() );
}
TEST_F(NoChunkFixture, NoPendingChunks) {
ASSERT( !getCollMetadata().keyIsPending(BSON( "a" << 15 )) );
ASSERT( !getCollMetadata().keyIsPending(BSON( "a" << 25 )) );
}
TEST_F(NoChunkFixture, FirstPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( cloned->keyIsPending(BSON( "a" << 10 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 20 )) );
}
TEST_F(NoChunkFixture, EmptyMultiPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
chunk.setMin( BSON("a" << 40) );
chunk.setMax( BSON("a" << 50) );
cloned.reset( cloned->clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( cloned->keyIsPending(BSON( "a" << 45 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 55 )) );
}
TEST_F(NoChunkFixture, MinusPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
cloned.reset( cloned->cloneMinusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( !cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 25 )) );
}
TEST_F(NoChunkFixture, OverlappingPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
chunk.setMin( BSON("a" << 20) );
chunk.setMax( BSON("a" << 40) );
cloned.reset( cloned->clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( !cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( cloned->keyIsPending(BSON( "a" << 35 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 45 )) );
}
TEST_F(NoChunkFixture, OverlappingPendingChunks) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
chunk.setMin( BSON("a" << 30) );
chunk.setMax( BSON("a" << 50) );
cloned.reset( cloned->clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
chunk.setMin( BSON("a" << 20) );
chunk.setMax( BSON("a" << 40) );
cloned.reset( cloned->clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( !cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( cloned->keyIsPending(BSON( "a" << 35 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 45 )) );
}
TEST_F(NoChunkFixture, MinusInvalidPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().cloneMinusPending( chunk, &errMsg ) );
ASSERT_NOT_EQUALS( errMsg, "" );
ASSERT( cloned == NULL );
}
TEST_F(NoChunkFixture, MinusOverlappingPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
chunk.setMin( BSON("a" << 15) );
chunk.setMax( BSON("a" << 35) );
cloned.reset( cloned->cloneMinusPending( chunk, &errMsg ) );
ASSERT_NOT_EQUALS( errMsg, "" );
ASSERT( cloned == NULL );
}
TEST_F(NoChunkFixture, PlusChunkWithPending) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 25 )) );
chunk.setMin( BSON("a" << 20) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( cloned->clonePlusChunk( chunk,
ChunkVersion( 1,
0,
cloned->getCollVersion().epoch() ),
&errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 15 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 25 )) );
}
TEST_F(NoChunkFixture, MergeChunkEmpty) {
string errMsg;
scoped_ptr<CollectionMetadata> cloned;
cloned.reset( getCollMetadata().cloneMerge( BSON( "a" << 15 ),
BSON( "a" << 25 ),
ChunkVersion( 1, 0, OID::gen() ),
&errMsg ) );
ASSERT_NOT_EQUALS( errMsg, "" );
ASSERT( cloned == NULL );
}
TEST_F(NoChunkFixture, OrphanedDataRangeBegin) {
const CollectionMetadata& metadata = getCollMetadata();
KeyRange keyRange;
BSONObj lookupKey = metadata.getMinKey();
ASSERT( metadata.getNextOrphanRange( lookupKey, &keyRange ) );
ASSERT( keyRange.minKey.woCompare( metadata.getMinKey() ) == 0 );
ASSERT( keyRange.maxKey.woCompare( metadata.getMaxKey() ) == 0 );
// Make sure we don't have any more ranges
ASSERT( !metadata.getNextOrphanRange( keyRange.maxKey, &keyRange ) );
}
TEST_F(NoChunkFixture, OrphanedDataRangeMiddle) {
const CollectionMetadata& metadata = getCollMetadata();
KeyRange keyRange;
BSONObj lookupKey = BSON( "a" << 20 );
ASSERT( metadata.getNextOrphanRange( lookupKey, &keyRange ) );
ASSERT( keyRange.minKey.woCompare( metadata.getMinKey() ) == 0 );
ASSERT( keyRange.maxKey.woCompare( metadata.getMaxKey() ) == 0 );
// Make sure we don't have any more ranges
ASSERT( !metadata.getNextOrphanRange( keyRange.maxKey, &keyRange ) );
}
TEST_F(NoChunkFixture, OrphanedDataRangeEnd) {
const CollectionMetadata& metadata = getCollMetadata();
KeyRange keyRange;
ASSERT( !metadata.getNextOrphanRange( metadata.getMaxKey(), &keyRange ) );
}
TEST_F(NoChunkFixture, PendingOrphanedDataRanges) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, string("") );
ASSERT( cloned != NULL );
KeyRange keyRange;
ASSERT( cloned->getNextOrphanRange( cloned->getMinKey(), &keyRange ) );
ASSERT( keyRange.minKey.woCompare( cloned->getMinKey() ) == 0 );
ASSERT( keyRange.maxKey.woCompare( BSON( "a" << 10 ) ) == 0 );
ASSERT( cloned->getNextOrphanRange( keyRange.maxKey, &keyRange ) );
ASSERT( keyRange.minKey.woCompare( BSON( "a" << 20 ) ) == 0 );
ASSERT( keyRange.maxKey.woCompare( cloned->getMaxKey() ) == 0 );
ASSERT( !cloned->getNextOrphanRange( keyRange.maxKey, &keyRange ) );
}
/**
* Fixture with single chunk containing:
* [10->20)
*/
class SingleChunkFixture : public mongo::unittest::Test {
protected:
void setUp() {
_dummyConfig.reset( new MockRemoteDBServer( CONFIG_HOST_PORT ) );
mongo::ConnectionString::setConnectionHook( MockConnRegistry::get()->getConnStrHook() );
MockConnRegistry::get()->addServer( _dummyConfig.get() );
OID epoch = OID::gen();
ChunkVersion chunkVersion = ChunkVersion( 1, 0, epoch );
BSONObj collFoo = BSON(CollectionType::ns("test.foo") <<
CollectionType::keyPattern(BSON("a" << 1)) <<
CollectionType::unique(false) <<
CollectionType::updatedAt(1ULL) <<
CollectionType::epoch(epoch));
_dummyConfig->insert( CollectionType::ConfigNS, collFoo );
BSONObj fooSingle = BSON(ChunkType::name("test.foo-a_10") <<
ChunkType::ns("test.foo") <<
ChunkType::min(BSON("a" << 10)) <<
ChunkType::max(BSON("a" << 20)) <<
ChunkType::DEPRECATED_lastmod(chunkVersion.toLong()) <<
ChunkType::DEPRECATED_epoch(epoch) <<
ChunkType::shard("shard0000"));
_dummyConfig->insert( ChunkType::ConfigNS, fooSingle );
ConnectionString configLoc( CONFIG_HOST_PORT );
MetadataLoader loader( configLoc );
Status status = loader.makeCollectionMetadata( "test.foo",
"shard0000",
NULL,
&_metadata );
ASSERT( status.isOK() );
}
void tearDown() {
MockConnRegistry::get()->clear();
}
const CollectionMetadata& getCollMetadata() const {
return _metadata;
}
private:
scoped_ptr<MockRemoteDBServer> _dummyConfig;
CollectionMetadata _metadata;
};
TEST_F(SingleChunkFixture, BasicBelongsToMe) {
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << 10)) );
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << 15)) );
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << 19)) );
}
TEST_F(SingleChunkFixture, DoesntBelongsToMe) {
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << 0)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << 9)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << 20)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << 1234)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << MINKEY)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << MAXKEY)) );
}
TEST_F(SingleChunkFixture, CompoudKeyBelongsToMe) {
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << 15 << "a" << 14)) );
}
TEST_F(SingleChunkFixture, getNextFromEmpty) {
ChunkType nextChunk;
ASSERT( getCollMetadata().getNextChunk( getCollMetadata().getMinKey(), &nextChunk ) );
ASSERT_EQUALS( 0, nextChunk.getMin().woCompare(BSON("a" << 10)) );
ASSERT_EQUALS( 0, nextChunk.getMax().woCompare(BSON("a" << 20)) );
}
TEST_F(SingleChunkFixture, GetLastChunkIsFalse) {
ChunkType nextChunk;
ASSERT( !getCollMetadata().getNextChunk( getCollMetadata().getMaxKey(), &nextChunk ) );
}
TEST_F(SingleChunkFixture, LastChunkCloneMinus) {
ChunkType chunk;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
string errMsg;
const ChunkVersion zeroVersion( 0, 0, getCollMetadata().getShardVersion().epoch() );
scoped_ptr<CollectionMetadata> cloned( getCollMetadata().cloneMigrate( chunk,
zeroVersion,
&errMsg ) );
ASSERT( errMsg.empty() );
ASSERT_EQUALS( 0u, cloned->getNumChunks() );
ASSERT_EQUALS( cloned->getShardVersion().toLong(), zeroVersion.toLong() );
ASSERT_EQUALS( cloned->getCollVersion().toLong(),
getCollMetadata().getCollVersion().toLong() );
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 15)) );
}
TEST_F(SingleChunkFixture, LastChunkMinusCantHaveNonZeroVersion) {
ChunkType chunk;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
string errMsg;
ChunkVersion version( 99, 0, OID() );
scoped_ptr<CollectionMetadata> cloned( getCollMetadata().cloneMigrate( chunk,
version,
&errMsg ) );
ASSERT( cloned == NULL );
ASSERT_FALSE( errMsg.empty() );
}
TEST_F(SingleChunkFixture, PlusPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 20) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 15)) );
ASSERT( !cloned->keyBelongsToMe(BSON("a" << 25)) );
ASSERT( !cloned->keyIsPending(BSON("a" << 15)) );
ASSERT( cloned->keyIsPending(BSON("a" << 25)) );
}
TEST_F(SingleChunkFixture, PlusOverlapPendingChunk) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_NOT_EQUALS( errMsg, "" );
ASSERT( cloned == NULL );
}
TEST_F(SingleChunkFixture, MinusChunkWithPending) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 20) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 35 )) );
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
cloned.reset( cloned->cloneMigrate( chunk,
ChunkVersion( 0, 0, cloned->getCollVersion().epoch() ),
&errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 35 )) );
}
TEST_F(SingleChunkFixture, SingleSplit) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
vector<BSONObj> splitPoints;
splitPoints.push_back( BSON("a" << 14) );
ChunkVersion version;
getCollMetadata().getCollVersion().cloneTo( &version );
version.incMinor();
cloned.reset( getCollMetadata().cloneSplit( chunk,
splitPoints,
version,
&errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ChunkVersion newVersion( cloned->getCollVersion() );
ASSERT_EQUALS( version.epoch(), newVersion.epoch() );
ASSERT_EQUALS( version.majorVersion(), newVersion.majorVersion() );
ASSERT_EQUALS( version.minorVersion() + 1, newVersion.minorVersion() );
chunk.clear();
ASSERT( cloned->getNextChunk(BSON("a" << MINKEY), &chunk) );
ASSERT( chunk.getMin().woCompare( BSON("a" << 10) ) == 0 );
ASSERT( chunk.getMax().woCompare( BSON("a" << 14) ) == 0 );
chunk.clear();
ASSERT( cloned->getNextChunk(BSON("a" << 14), &chunk) );
ASSERT( chunk.getMin().woCompare( BSON("a" << 14) ) == 0 );
ASSERT( chunk.getMax().woCompare( BSON("a" << 20) ) == 0 );
chunk.clear();
ASSERT_FALSE( cloned->getNextChunk(BSON("a" << 20), &chunk) );
}
TEST_F(SingleChunkFixture, MultiSplit) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
vector<BSONObj> splitPoints;
splitPoints.push_back( BSON("a" << 14) );
splitPoints.push_back( BSON("a" << 16) );
ChunkVersion version;
getCollMetadata().getCollVersion().cloneTo( &version );
version.incMinor();
cloned.reset( getCollMetadata().cloneSplit( chunk,
splitPoints,
version,
&errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ChunkVersion newVersion( cloned->getCollVersion() );
ASSERT_EQUALS( version.epoch(), newVersion.epoch() );
ASSERT_EQUALS( version.majorVersion(), newVersion.majorVersion() );
ASSERT_EQUALS( version.minorVersion() + 2, newVersion.minorVersion() );
chunk.clear();
ASSERT( cloned->getNextChunk(BSON("a" << MINKEY), &chunk) );
ASSERT( chunk.getMin().woCompare( BSON("a" << 10) ) == 0 );
ASSERT( chunk.getMax().woCompare( BSON("a" << 14) ) == 0 );
chunk.clear();
ASSERT( cloned->getNextChunk(BSON("a" << 14), &chunk) );
ASSERT( chunk.getMin().woCompare( BSON("a" << 14) ) == 0 );
ASSERT( chunk.getMax().woCompare( BSON("a" << 16) ) == 0 );
chunk.clear();
ASSERT( cloned->getNextChunk(BSON("a" << 16), &chunk) );
ASSERT( chunk.getMin().woCompare( BSON("a" << 16) ) == 0 );
ASSERT( chunk.getMax().woCompare( BSON("a" << 20) ) == 0 );
chunk.clear();
ASSERT_FALSE( cloned->getNextChunk(BSON("a" << 20), &chunk) );
}
TEST_F(SingleChunkFixture, SplitChunkWithPending) {
string errMsg;
ChunkType chunk;
scoped_ptr<CollectionMetadata> cloned;
chunk.setMin( BSON("a" << 20) );
chunk.setMax( BSON("a" << 30) );
cloned.reset( getCollMetadata().clonePlusPending( chunk, &errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 35 )) );
chunk.setMin( BSON("a" << 10) );
chunk.setMax( BSON("a" << 20) );
vector<BSONObj> splitPoints;
splitPoints.push_back( BSON("a" << 14) );
splitPoints.push_back( BSON("a" << 16) );
cloned.reset( cloned->cloneSplit( chunk,
splitPoints,
ChunkVersion( cloned->getCollVersion().majorVersion() + 1,
0,
cloned->getCollVersion().epoch() ),
&errMsg ) );
ASSERT_EQUALS( errMsg, "" );
ASSERT( cloned != NULL );
ASSERT( cloned->keyIsPending(BSON( "a" << 25 )) );
ASSERT( !cloned->keyIsPending(BSON( "a" << 35 )) );
}
TEST_F(SingleChunkFixture, MergeChunkSingle) {
string errMsg;
scoped_ptr<CollectionMetadata> cloned;
cloned.reset( getCollMetadata().cloneMerge( BSON( "a" << 10 ),
BSON( "a" << 20 ),
ChunkVersion( 2, 0, OID::gen() ),
&errMsg ) );
ASSERT_NOT_EQUALS( errMsg, "" );
ASSERT( cloned == NULL );
}
TEST_F(SingleChunkFixture, ChunkOrphanedDataRanges) {
KeyRange keyRange;
ASSERT( getCollMetadata().getNextOrphanRange( getCollMetadata().getMinKey(), &keyRange ) );
ASSERT( keyRange.minKey.woCompare( getCollMetadata().getMinKey() ) == 0 );
ASSERT( keyRange.maxKey.woCompare( BSON( "a" << 10 ) ) == 0 );
ASSERT( getCollMetadata().getNextOrphanRange( keyRange.maxKey, &keyRange ) );
ASSERT( keyRange.minKey.woCompare( BSON( "a" << 20 ) ) == 0 );
ASSERT( keyRange.maxKey.woCompare( getCollMetadata().getMaxKey() ) == 0 );
ASSERT( !getCollMetadata().getNextOrphanRange( keyRange.maxKey, &keyRange ) );
}
/**
* Fixture with single chunk containing:
* [(min, min)->(max, max))
*/
class SingleChunkMinMaxCompoundKeyFixture : public mongo::unittest::Test {
protected:
void setUp() {
_dummyConfig.reset( new MockRemoteDBServer( CONFIG_HOST_PORT ) );
mongo::ConnectionString::setConnectionHook( MockConnRegistry::get()->getConnStrHook() );
MockConnRegistry::get()->addServer( _dummyConfig.get() );
OID epoch = OID::gen();
ChunkVersion chunkVersion = ChunkVersion( 1, 0, epoch );
BSONObj collFoo = BSON(CollectionType::ns("test.foo") <<
CollectionType::keyPattern(BSON("a" << 1)) <<
CollectionType::unique(false) <<
CollectionType::updatedAt(1ULL) <<
CollectionType::epoch(epoch));
_dummyConfig->insert( CollectionType::ConfigNS, collFoo );
BSONObj fooSingle = BSON(ChunkType::name("test.foo-a_MinKey") <<
ChunkType::ns("test.foo") <<
ChunkType::min(BSON("a" << MINKEY << "b" << MINKEY)) <<
ChunkType::max(BSON("a" << MAXKEY << "b" << MAXKEY)) <<
ChunkType::DEPRECATED_lastmod(chunkVersion.toLong()) <<
ChunkType::DEPRECATED_epoch(epoch) <<
ChunkType::shard("shard0000"));
_dummyConfig->insert( ChunkType::ConfigNS, fooSingle );
ConnectionString configLoc( CONFIG_HOST_PORT );
MetadataLoader loader( configLoc );
Status status = loader.makeCollectionMetadata( "test.foo",
"shard0000",
NULL,
&_metadata );
ASSERT( status.isOK() );
}
void tearDown() {
MockConnRegistry::get()->clear();
}
const CollectionMetadata& getCollMetadata() const {
return _metadata;
}
private:
scoped_ptr<MockRemoteDBServer> _dummyConfig;
CollectionMetadata _metadata;
};
// Note: no tests for single key belongsToMe because they are not allowed
// if shard key is compound.
TEST_F(SingleChunkMinMaxCompoundKeyFixture, CompoudKeyBelongsToMe) {
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << MINKEY << "b" << MINKEY)) );
ASSERT_FALSE( getCollMetadata().keyBelongsToMe(BSON("a" << MAXKEY << "b" << MAXKEY)) );
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << MINKEY << "b" << 10)) );
ASSERT( getCollMetadata().keyBelongsToMe(BSON("a" << 10 << "b" << 20)) );
}
/**
* Fixture with chunks:
* [(10, 0)->(20, 0)), [(30, 0)->(40, 0))
*/
class TwoChunksWithGapCompoundKeyFixture : public mongo::unittest::Test {
protected:
void setUp() {
_dummyConfig.reset( new MockRemoteDBServer( CONFIG_HOST_PORT ) );
mongo::ConnectionString::setConnectionHook( MockConnRegistry::get()->getConnStrHook() );
MockConnRegistry::get()->addServer( _dummyConfig.get() );
OID epoch = OID::gen();
ChunkVersion chunkVersion = ChunkVersion( 1, 0, epoch );
BSONObj collFoo = BSON(CollectionType::ns("test.foo") <<
CollectionType::keyPattern(BSON("a" << 1)) <<
CollectionType::unique(false) <<
CollectionType::updatedAt(1ULL) <<
CollectionType::epoch(epoch));
_dummyConfig->insert( CollectionType::ConfigNS, collFoo );
_dummyConfig->insert( ChunkType::ConfigNS, BSON(ChunkType::name("test.foo-a_10") <<
ChunkType::ns("test.foo") <<
ChunkType::min(BSON("a" << 10 << "b" << 0)) <<
ChunkType::max(BSON("a" << 20 << "b" << 0)) <<
ChunkType::DEPRECATED_lastmod(chunkVersion.toLong()) <<
ChunkType::DEPRECATED_epoch(epoch) <<
ChunkType::shard("shard0000")) );
_dummyConfig->insert( ChunkType::ConfigNS, BSON(ChunkType::name("test.foo-a_10") <<
ChunkType::ns("test.foo") <<
ChunkType::min(BSON("a" << 30 << "b" << 0)) <<
ChunkType::max(BSON("a" << 40 << "b" << 0)) <<
ChunkType::DEPRECATED_lastmod(chunkVersion.toLong()) <<
ChunkType::DEPRECATED_epoch(epoch) <<
ChunkType::shard("shard0000")) );
ConnectionString configLoc( CONFIG_HOST_PORT );
MetadataLoader loader( configLoc );
Status status = loader.makeCollectionMetadata( "test.foo",
"shard0000",
NULL,
&_metadata );
ASSERT( status.isOK() );
}
void tearDown() {
MockConnRegistry::get()->clear();
}
const CollectionMetadata& getCollMetadata() const {
return _metadata;
}
private:
scoped_ptr<MockRemoteDBServer> _dummyConfig;
CollectionMetadata _metadata;
};
TEST_F(TwoChunksWithGapCompoundKeyFixture, ClonePlusBasic) {
ChunkType chunk;
chunk.setMin( BSON("a" << 40 << "b" << 0) );
chunk.setMax( BSON("a" << 50 << "b" << 0) );
string errMsg;
ChunkVersion version( 1, 0, getCollMetadata().getShardVersion().epoch() );
scoped_ptr<CollectionMetadata> cloned( getCollMetadata().clonePlusChunk( chunk,
version,
&errMsg ) );
ASSERT( errMsg.empty() );
ASSERT_EQUALS( 2u, getCollMetadata().getNumChunks() );
ASSERT_EQUALS( 3u, cloned->getNumChunks() );
// TODO: test maxShardVersion, maxCollVersion
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 25 << "b" << 0)) );
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 29 << "b" << 0)) );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 30 << "b" << 0)) );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 45 << "b" << 0)) );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 49 << "b" << 0)) );
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 50 << "b" << 0)) );
}
TEST_F(TwoChunksWithGapCompoundKeyFixture, ClonePlusOverlappingRange) {
ChunkType chunk;
chunk.setMin( BSON("a" << 15 << "b" << 0) );
chunk.setMax( BSON("a" << 25 << "b" << 0) );
string errMsg;
scoped_ptr<CollectionMetadata> cloned( getCollMetadata().clonePlusChunk( chunk,
ChunkVersion( 1,
0,
OID() ),
&errMsg ) );
ASSERT( cloned == NULL );
ASSERT_FALSE( errMsg.empty() );
ASSERT_EQUALS( 2u, getCollMetadata().getNumChunks() );
}
TEST_F(TwoChunksWithGapCompoundKeyFixture, CloneMinusBasic) {
ChunkType chunk;
chunk.setMin( BSON("a" << 10 << "b" << 0) );
chunk.setMax( BSON("a" << 20 << "b" << 0) );
string errMsg;
ChunkVersion version( 2, 0, OID() );
scoped_ptr<CollectionMetadata> cloned( getCollMetadata().cloneMigrate( chunk,
version,
&errMsg ) );
ASSERT( errMsg.empty() );
ASSERT_EQUALS( 2u, getCollMetadata().getNumChunks() );
ASSERT_EQUALS( 1u, cloned->getNumChunks() );
// TODO: test maxShardVersion, maxCollVersion
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 5 << "b" << 0)) );
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 15 << "b" << 0)) );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 30 << "b" << 0)) );
ASSERT( cloned->keyBelongsToMe(BSON("a" << 35 << "b" << 0)) );
ASSERT_FALSE( cloned->keyBelongsToMe(BSON("a" << 40 << "b" << 0)) );
}
TEST_F(TwoChunksWithGapCompoundKeyFixture, CloneMinusNonExisting) {
ChunkType chunk;