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());
}
ChunkManager::ChunkManager(const CollectionType& coll)
: _ns(coll.getNs().ns()),
_keyPattern(coll.getKeyPattern()),
_unique(coll.getUnique()),
_sequenceNumber(NextSequenceNumber.addAndFetch(1)),
_chunkRanges() {
// coll does not have correct version. Use same initial version as _load and createFirstChunks.
_version = ChunkVersion(0, 0, coll.getEpoch());
}
/**
* 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);
coll.setKeyPattern(ranges.begin()->keyPattern);
coll.setEpoch(startVersion.epoch());
coll.setUpdatedAt(Date_t::fromMillisSinceEpoch(1));
ASSERT_OK(coll.validate());
DBDirectClient client(&_txn);
client.update(CollectionType::ConfigNS,
BSON(CollectionType::fullNs(coll.getNs().ns())),
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.ns(), 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());
}
}
