void ShardingTestFixture::expectUpdateCollection(const HostAndPort& expectedHost,
const CollectionType& coll) {
onCommand([&](const RemoteCommandRequest& request) {
ASSERT_EQUALS(expectedHost, request.target);
ASSERT_EQUALS(BSON(rpc::kReplSetMetadataFieldName << 1), request.metadata);
ASSERT_EQUALS("config", request.dbname);
BatchedUpdateRequest actualBatchedUpdate;
std::string errmsg;
ASSERT_TRUE(actualBatchedUpdate.parseBSON(request.dbname, request.cmdObj, &errmsg));
ASSERT_EQUALS(CollectionType::ConfigNS, actualBatchedUpdate.getNS().ns());
auto updates = actualBatchedUpdate.getUpdates();
ASSERT_EQUALS(1U, updates.size());
auto update = updates.front();
ASSERT_TRUE(update->getUpsert());
ASSERT_FALSE(update->getMulti());
ASSERT_EQUALS(update->getQuery(), BSON(CollectionType::fullNs(coll.getNs().toString())));
ASSERT_EQUALS(update->getUpdateExpr(), coll.toBSON());
BatchedCommandResponse response;
response.setOk(true);
response.setNModified(1);
return response.toBSON();
});
}
ChunkManager::ChunkManager(const CollectionType& coll)
: _ns(coll.getNs().ns()),
_keyPattern(coll.getKeyPattern()),
_unique(coll.getUnique()),
_sequenceNumber(NextSequenceNumber.addAndFetch(1)),
_chunkRanges() {
_version = ChunkVersion::fromBSON(coll.toBSON());
}
Status ShardingCatalogClientImpl::updateShardingCatalogEntryForCollection(
OperationContext* opCtx,
const NamespaceString& nss,
const CollectionType& coll,
const bool upsert) {
fassert(28634, coll.validate());
auto status = _updateConfigDocument(opCtx,
CollectionType::ConfigNS,
BSON(CollectionType::fullNs(nss.ns())),
coll.toBSON(),
upsert,
ShardingCatalogClient::kMajorityWriteConcern);
return status.getStatus().withContext(str::stream() << "Collection metadata write failed");
}
Status CatalogManager::updateCollection(const std::string& collNs, const CollectionType& coll) {
fassert(28634, coll.validate());
BatchedCommandResponse response;
Status status = update(CollectionType::ConfigNS,
BSON(CollectionType::fullNs(collNs)),
coll.toBSON(),
true, // upsert
false, // multi
&response);
if (!status.isOK()) {
return Status(status.code(),
str::stream() << "collection metadata write failed: " << response.toBSON()
<< "; status: " << status.toString());
}
return Status::OK();
}
/**
* Stores ranges for a particular collection and shard starting from some version
*/
void storeCollectionRanges( const NamespaceString& nss,
const string& shardName,
const vector<KeyRange>& ranges,
const ChunkVersion& startVersion ) {
// Get key pattern from first range
ASSERT_GREATER_THAN( ranges.size(), 0u );
CollectionType coll;
coll.setNS( nss.ns() );
coll.setKeyPattern( ranges.begin()->keyPattern );
coll.setEpoch( startVersion.epoch() );
coll.setUpdatedAt( 1ULL );
string errMsg;
ASSERT( coll.isValid( &errMsg ) );
DBDirectClient client(&_txn);
client.update( CollectionType::ConfigNS,
BSON( CollectionType::ns( coll.getNS() ) ),
coll.toBSON(), true, false );
ChunkVersion nextVersion = startVersion;
for ( vector<KeyRange>::const_iterator it = ranges.begin(); it != ranges.end(); ++it ) {
ChunkType chunk;
// TODO: We should not rely on the serialized ns, minkey being unique in the future,
// causes problems since it links string serialization to correctness.
chunk.setName( Chunk::genID( nss, it->minKey ) );
chunk.setShard( shardName );
chunk.setNS( nss.ns() );
chunk.setVersion( nextVersion );
chunk.setMin( it->minKey );
chunk.setMax( it->maxKey );
nextVersion.incMajor();
client.insert( ChunkType::ConfigNS, chunk.toBSON() );
}
}