Status CatalogManagerReplicaSet::checkAndUpgrade(bool checkOnly) {
auto versionStatus = _getConfigVersion();
if (!versionStatus.isOK()) {
return versionStatus.getStatus();
}
auto versionInfo = versionStatus.getValue();
if (versionInfo.getMinCompatibleVersion() > CURRENT_CONFIG_VERSION) {
return {ErrorCodes::IncompatibleShardingConfigVersion,
str::stream() << "current version v" << CURRENT_CONFIG_VERSION
<< " is older than the cluster min compatible v"
<< versionInfo.getMinCompatibleVersion()};
}
if (versionInfo.getCurrentVersion() == UpgradeHistory_EmptyVersion) {
VersionType newVersion;
newVersion.setClusterId(OID::gen());
// For v3.2, only v3.2 binaries can talk to RS Config servers.
newVersion.setMinCompatibleVersion(CURRENT_CONFIG_VERSION);
newVersion.setCurrentVersion(CURRENT_CONFIG_VERSION);
BSONObj versionObj(newVersion.toBSON());
return update(VersionType::ConfigNS,
versionObj,
versionObj,
true /* upsert*/,
false /* multi */,
nullptr);
}
if (versionInfo.getCurrentVersion() == UpgradeHistory_UnreportedVersion) {
return {ErrorCodes::IncompatibleShardingConfigVersion,
"Assuming config data is old since the version document cannot be found in the"
"config server and it contains databases aside 'local' and 'admin'. "
"Please upgrade if this is the case. Otherwise, make sure that the config "
"server is clean."};
}
if (versionInfo.getCurrentVersion() < CURRENT_CONFIG_VERSION) {
return {ErrorCodes::IncompatibleShardingConfigVersion,
str::stream() << "need to upgrade current cluster version to v"
<< CURRENT_CONFIG_VERSION << "; currently at v"
<< versionInfo.getCurrentVersion()};
}
return Status::OK();
}
Status CatalogManagerReplicaSet::initConfigVersion(OperationContext* txn) {
for (int x = 0; x < kMaxConfigVersionInitRetry; x++) {
auto versionStatus = _getConfigVersion(txn);
if (!versionStatus.isOK()) {
return versionStatus.getStatus();
}
auto versionInfo = versionStatus.getValue();
if (versionInfo.getMinCompatibleVersion() > CURRENT_CONFIG_VERSION) {
return {ErrorCodes::IncompatibleShardingConfigVersion,
str::stream() << "current version v" << CURRENT_CONFIG_VERSION
<< " is older than the cluster min compatible v"
<< versionInfo.getMinCompatibleVersion()};
}
if (versionInfo.getCurrentVersion() == UpgradeHistory_EmptyVersion) {
VersionType newVersion;
newVersion.setClusterId(OID::gen());
newVersion.setMinCompatibleVersion(MIN_COMPATIBLE_CONFIG_VERSION);
newVersion.setCurrentVersion(CURRENT_CONFIG_VERSION);
BSONObj versionObj(newVersion.toBSON());
BatchedCommandResponse response;
auto upsertStatus = update(txn,
VersionType::ConfigNS,
versionObj,
versionObj,
true /* upsert*/,
false /* multi */,
&response);
if ((upsertStatus.isOK() && response.getN() < 1) ||
upsertStatus == ErrorCodes::DuplicateKey) {
// Do the check again as someone inserted a new config version document
// and the upsert neither inserted nor updated a config version document.
// Note: you can get duplicate key errors on upsert because of SERVER-14322.
continue;
}
return upsertStatus;
}
if (versionInfo.getCurrentVersion() == UpgradeHistory_UnreportedVersion) {
return {ErrorCodes::IncompatibleShardingConfigVersion,
"Assuming config data is old since the version document cannot be found in the "
"config server and it contains databases aside 'local' and 'admin'. "
"Please upgrade if this is the case. Otherwise, make sure that the config "
"server is clean."};
}
if (versionInfo.getCurrentVersion() < CURRENT_CONFIG_VERSION) {
return {ErrorCodes::IncompatibleShardingConfigVersion,
str::stream() << "need to upgrade current cluster version to v"
<< CURRENT_CONFIG_VERSION << "; currently at v"
<< versionInfo.getCurrentVersion()};
}
return Status::OK();
}
return {ErrorCodes::IncompatibleShardingConfigVersion,
str::stream() << "unable to create new config version document after "
<< kMaxConfigVersionInitRetry << " retries"};
}
