void ShardingEgressMetadataHookForMongos::_saveGLEStats(const BSONObj& metadata,
StringData hostString) {
if (!haveClient()) {
// Client will be present only when write commands are used.
return;
}
auto swShardingMetadata = rpc::ShardingMetadata::readFromMetadata(metadata);
if (swShardingMetadata.getStatus() == ErrorCodes::NoSuchKey) {
return;
} else if (!swShardingMetadata.isOK()) {
warning() << "Got invalid sharding metadata " << redact(swShardingMetadata.getStatus())
<< " metadata object was '" << redact(metadata) << "'";
return;
}
auto shardConn = ConnectionString::parse(hostString.toString());
// If we got the reply from this host, we expect that its 'hostString' must be valid.
if (!shardConn.isOK()) {
severe() << "got bad host string in saveGLEStats: " << hostString;
}
invariantOK(shardConn.getStatus());
auto shardingMetadata = std::move(swShardingMetadata.getValue());
auto& clientInfo = cc();
LOG(4) << "saveGLEStats lastOpTime:" << shardingMetadata.getLastOpTime()
<< " electionId:" << shardingMetadata.getLastElectionId();
ClusterLastErrorInfo::get(clientInfo)
->addHostOpTime(
shardConn.getValue(),
HostOpTime(shardingMetadata.getLastOpTime(), shardingMetadata.getLastElectionId()));
}
Status ShardingMetadata::writeToMetadata(BSONObjBuilder* metadataBob) const {
BSONObjBuilder subobj(metadataBob->subobjStart(kGLEStatsFieldName));
if (getLastOpTime().getTerm() > repl::OpTime::kUninitializedTerm) {
getLastOpTime().append(&subobj, kGLEStatsLastOpTimeFieldName);
} else {
subobj.append(kGLEStatsLastOpTimeFieldName, getLastOpTime().getTimestamp());
}
subobj.append(kGLEStatsElectionIdFieldName, getLastElectionId());
return Status::OK();
}
Status ShardingMetadata::writeToMetadata(BSONObjBuilder* metadataBob) const {
BSONObjBuilder subobj(metadataBob->subobjStart(kGLEStatsFieldName));
subobj.append(kGLEStatsLastOpTimeFieldName, getLastOpTime());
subobj.append(kGLEStatsElectionIdFieldName, getLastElectionId());
return Status::OK();
}
