void Shard::printShardInfo( ostream& out ) {
vector<Shard> all;
getAllShards( all );
for ( unsigned i=0; i<all.size(); i++ )
out << all[i].toString() << "\n";
out.flush();
}
Status CatalogManagerReplicaSet::dropCollection(OperationContext* txn, const NamespaceString& ns) {
logChange(
txn, txn->getClient()->clientAddress(true), "dropCollection.start", ns.ns(), BSONObj());
vector<ShardType> allShards;
Status status = getAllShards(txn, &allShards);
if (!status.isOK()) {
return status;
}
LOG(1) << "dropCollection " << ns << " started";
// Lock the collection globally so that split/migrate cannot run
stdx::chrono::seconds waitFor(2);
MONGO_FAIL_POINT_BLOCK(setDropCollDistLockWait, customWait) {
const BSONObj& data = customWait.getData();
waitFor = stdx::chrono::seconds(data["waitForSecs"].numberInt());
}
const stdx::chrono::milliseconds lockTryInterval(500);
auto scopedDistLock = getDistLockManager()->lock(ns.ns(), "drop", waitFor, lockTryInterval);
if (!scopedDistLock.isOK()) {
return scopedDistLock.getStatus();
}
LOG(1) << "dropCollection " << ns << " locked";
std::map<string, BSONObj> errors;
auto* shardRegistry = grid.shardRegistry();
for (const auto& shardEntry : allShards) {
auto dropResult = shardRegistry->runCommandWithNotMasterRetries(
txn, shardEntry.getName(), ns.db().toString(), BSON("drop" << ns.coll()));
if (!dropResult.isOK()) {
return dropResult.getStatus();
}
auto dropStatus = getStatusFromCommandResult(dropResult.getValue());
if (!dropStatus.isOK()) {
if (dropStatus.code() == ErrorCodes::NamespaceNotFound) {
continue;
}
errors.emplace(shardEntry.getHost(), dropResult.getValue());
}
}
if (!errors.empty()) {
StringBuilder sb;
sb << "Dropping collection failed on the following hosts: ";
for (auto it = errors.cbegin(); it != errors.cend(); ++it) {
if (it != errors.cbegin()) {
sb << ", ";
}
sb << it->first << ": " << it->second;
}
return {ErrorCodes::OperationFailed, sb.str()};
}
LOG(1) << "dropCollection " << ns << " shard data deleted";
// Remove chunk data
Status result = remove(txn, ChunkType::ConfigNS, BSON(ChunkType::ns(ns.ns())), 0, nullptr);
if (!result.isOK()) {
return result;
}
LOG(1) << "dropCollection " << ns << " chunk data deleted";
// Mark the collection as dropped
CollectionType coll;
coll.setNs(ns);
coll.setDropped(true);
coll.setEpoch(ChunkVersion::DROPPED().epoch());
coll.setUpdatedAt(grid.shardRegistry()->getNetwork()->now());
result = updateCollection(txn, ns.ns(), coll);
if (!result.isOK()) {
return result;
}
LOG(1) << "dropCollection " << ns << " collection marked as dropped";
for (const auto& shardEntry : allShards) {
SetShardVersionRequest ssv = SetShardVersionRequest::makeForVersioningNoPersist(
grid.shardRegistry()->getConfigServerConnectionString(),
shardEntry.getName(),
fassertStatusOK(28781, ConnectionString::parse(shardEntry.getHost())),
ns,
ChunkVersion::DROPPED(),
true);
auto ssvResult = shardRegistry->runCommandWithNotMasterRetries(
txn, shardEntry.getName(), "admin", ssv.toBSON());
if (!ssvResult.isOK()) {
return ssvResult.getStatus();
}
auto ssvStatus = getStatusFromCommandResult(ssvResult.getValue());
if (!ssvStatus.isOK()) {
return ssvStatus;
}
auto unsetShardingStatus = shardRegistry->runCommandWithNotMasterRetries(
txn, shardEntry.getName(), "admin", BSON("unsetSharding" << 1));
if (!unsetShardingStatus.isOK()) {
return unsetShardingStatus.getStatus();
}
auto unsetShardingResult = getStatusFromCommandResult(unsetShardingStatus.getValue());
if (!unsetShardingResult.isOK()) {
return unsetShardingResult;
}
}
LOG(1) << "dropCollection " << ns << " completed";
logChange(txn, txn->getClient()->clientAddress(true), "dropCollection", ns.ns(), BSONObj());
return Status::OK();
}
Status CatalogManagerReplicaSet::dropCollection(OperationContext* txn, const NamespaceString& ns) {
logChange(
txn, txn->getClient()->clientAddress(true), "dropCollection.start", ns.ns(), BSONObj());
vector<ShardType> allShards;
Status status = getAllShards(txn, &allShards);
if (!status.isOK()) {
return status;
}
LOG(1) << "dropCollection " << ns << " started";
// Lock the collection globally so that split/migrate cannot run
auto scopedDistLock = getDistLockManager()->lock(ns.ns(), "drop");
if (!scopedDistLock.isOK()) {
return scopedDistLock.getStatus();
}
LOG(1) << "dropCollection " << ns << " locked";
std::map<string, BSONObj> errors;
auto* shardRegistry = grid.shardRegistry();
for (const auto& shardEntry : allShards) {
auto dropResult = shardRegistry->runCommandWithNotMasterRetries(
txn, shardEntry.getName(), ns.db().toString(), BSON("drop" << ns.coll()));
if (!dropResult.isOK()) {
return dropResult.getStatus();
}
auto dropStatus = getStatusFromCommandResult(dropResult.getValue());
if (!dropStatus.isOK()) {
if (dropStatus.code() == ErrorCodes::NamespaceNotFound) {
continue;
}
errors.emplace(shardEntry.getHost(), dropResult.getValue());
}
}
if (!errors.empty()) {
StringBuilder sb;
sb << "Dropping collection failed on the following hosts: ";
for (auto it = errors.cbegin(); it != errors.cend(); ++it) {
if (it != errors.cbegin()) {
sb << ", ";
}
sb << it->first << ": " << it->second;
}
return {ErrorCodes::OperationFailed, sb.str()};
}
LOG(1) << "dropCollection " << ns << " shard data deleted";
// Remove chunk data
Status result = remove(txn, ChunkType::ConfigNS, BSON(ChunkType::ns(ns.ns())), 0, nullptr);
if (!result.isOK()) {
return result;
}
LOG(1) << "dropCollection " << ns << " chunk data deleted";
// Mark the collection as dropped
CollectionType coll;
coll.setNs(ns);
coll.setDropped(true);
coll.setEpoch(ChunkVersion::DROPPED().epoch());
coll.setUpdatedAt(grid.shardRegistry()->getNetwork()->now());
result = updateCollection(txn, ns.ns(), coll);
if (!result.isOK()) {
return result;
}
LOG(1) << "dropCollection " << ns << " collection marked as dropped";
// We just called updateCollection above and this would have advanced the config op time, so use
// the latest value. On the MongoD side, we need to load the latest config metadata, which
// indicates that the collection was dropped.
const ChunkVersionAndOpTime droppedVersion(ChunkVersion::DROPPED(),
grid.shardRegistry()->getConfigOpTime());
for (const auto& shardEntry : allShards) {
SetShardVersionRequest ssv = SetShardVersionRequest::makeForVersioningNoPersist(
grid.shardRegistry()->getConfigServerConnectionString(),
shardEntry.getName(),
fassertStatusOK(28781, ConnectionString::parse(shardEntry.getHost())),
ns,
droppedVersion,
true);
auto ssvResult = shardRegistry->runCommandWithNotMasterRetries(
txn, shardEntry.getName(), "admin", ssv.toBSON());
if (!ssvResult.isOK()) {
return ssvResult.getStatus();
}
auto ssvStatus = getStatusFromCommandResult(ssvResult.getValue());
if (!ssvStatus.isOK()) {
return ssvStatus;
}
auto unsetShardingStatus = shardRegistry->runCommandWithNotMasterRetries(
txn, shardEntry.getName(), "admin", BSON("unsetSharding" << 1));
if (!unsetShardingStatus.isOK()) {
return unsetShardingStatus.getStatus();
}
auto unsetShardingResult = getStatusFromCommandResult(unsetShardingStatus.getValue());
if (!unsetShardingResult.isOK()) {
return unsetShardingResult;
}
}
LOG(1) << "dropCollection " << ns << " completed";
logChange(txn, txn->getClient()->clientAddress(true), "dropCollection", ns.ns(), BSONObj());
return Status::OK();
}
