void appendReplicationInfo(OperationContext* txn, BSONObjBuilder& result, int level) {
ReplicationCoordinator* replCoord = getGlobalReplicationCoordinator();
if (replCoord->getSettings().usingReplSets()) {
IsMasterResponse isMasterResponse;
replCoord->fillIsMasterForReplSet(&isMasterResponse);
result.appendElements(isMasterResponse.toBSON());
if (level) {
replCoord->appendSlaveInfoData(&result);
}
return;
}
// TODO(dannenberg) replAllDead is bad and should be removed when master slave is removed
if (replAllDead) {
result.append("ismaster", 0);
string s = string("dead: ") + replAllDead;
result.append("info", s);
} else {
result.appendBool("ismaster",
getGlobalReplicationCoordinator()->isMasterForReportingPurposes());
}
if (level) {
BSONObjBuilder sources(result.subarrayStart("sources"));
int n = 0;
list<BSONObj> src;
{
const char* localSources = "local.sources";
AutoGetCollectionForRead ctx(txn, localSources);
unique_ptr<PlanExecutor> exec(
InternalPlanner::collectionScan(txn, localSources, ctx.getCollection()));
BSONObj obj;
PlanExecutor::ExecState state;
while (PlanExecutor::ADVANCED == (state = exec->getNext(&obj, NULL))) {
src.push_back(obj);
}
}
for (list<BSONObj>::const_iterator i = src.begin(); i != src.end(); i++) {
BSONObj s = *i;
BSONObjBuilder bb;
bb.append(s["host"]);
string sourcename = s["source"].valuestr();
if (sourcename != "main")
bb.append(s["source"]);
{
BSONElement e = s["syncedTo"];
BSONObjBuilder t(bb.subobjStart("syncedTo"));
t.appendDate("time", e.timestampTime());
t.append("inc", e.timestampInc());
t.done();
}
if (level > 1) {
wassert(!txn->lockState()->isLocked());
// note: there is no so-style timeout on this connection; perhaps we should have
// one.
ScopedDbConnection conn(s["host"].valuestr());
DBClientConnection* cliConn = dynamic_cast<DBClientConnection*>(&conn.conn());
if (cliConn && replAuthenticate(cliConn)) {
BSONObj first = conn->findOne((string) "local.oplog.$" + sourcename,
Query().sort(BSON("$natural" << 1)));
BSONObj last = conn->findOne((string) "local.oplog.$" + sourcename,
Query().sort(BSON("$natural" << -1)));
bb.appendDate("masterFirst", first["ts"].timestampTime());
bb.appendDate("masterLast", last["ts"].timestampTime());
const auto lag = (last["ts"].timestampTime() - s["syncedTo"].timestampTime());
bb.append("lagSeconds", durationCount<Milliseconds>(lag) / 1000.0);
}
conn.done();
}
sources.append(BSONObjBuilder::numStr(n++), bb.obj());
}
sources.done();
replCoord->appendSlaveInfoData(&result);
}
}
void appendReplicationInfo(OperationContext* opCtx, BSONObjBuilder& result, int level) {
ReplicationCoordinator* replCoord = ReplicationCoordinator::get(opCtx);
if (replCoord->getSettings().usingReplSets()) {
IsMasterResponse isMasterResponse;
replCoord->fillIsMasterForReplSet(&isMasterResponse);
result.appendElements(isMasterResponse.toBSON());
if (level) {
replCoord->appendSlaveInfoData(&result);
}
return;
}
result.appendBool("ismaster",
ReplicationCoordinator::get(opCtx)->isMasterForReportingPurposes());
if (level) {
BSONObjBuilder sources(result.subarrayStart("sources"));
int n = 0;
list<BSONObj> src;
{
const NamespaceString localSources{"local.sources"};
AutoGetCollectionForReadCommand ctx(opCtx, localSources);
auto exec = InternalPlanner::collectionScan(
opCtx, localSources.ns(), ctx.getCollection(), PlanExecutor::NO_YIELD);
BSONObj obj;
PlanExecutor::ExecState state;
while (PlanExecutor::ADVANCED == (state = exec->getNext(&obj, NULL))) {
src.push_back(obj.getOwned());
}
// Non-yielding collection scans from InternalPlanner will never error.
invariant(PlanExecutor::IS_EOF == state);
}
for (list<BSONObj>::const_iterator i = src.begin(); i != src.end(); i++) {
BSONObj s = *i;
BSONObjBuilder bb;
bb.append(s["host"]);
string sourcename = s["source"].valuestr();
if (sourcename != "main")
bb.append(s["source"]);
{
BSONElement e = s["syncedTo"];
BSONObjBuilder t(bb.subobjStart("syncedTo"));
t.appendDate("time", e.timestampTime());
t.append("inc", e.timestampInc());
t.done();
}
if (level > 1) {
invariant(!opCtx->lockState()->isLocked());
// note: there is no so-style timeout on this connection; perhaps we should have
// one.
ScopedDbConnection conn(s["host"].valuestr());
DBClientConnection* cliConn = dynamic_cast<DBClientConnection*>(&conn.conn());
if (cliConn && replAuthenticate(cliConn)) {
BSONObj first = conn->findOne((string) "local.oplog.$" + sourcename,
Query().sort(BSON("$natural" << 1)));
BSONObj last = conn->findOne((string) "local.oplog.$" + sourcename,
Query().sort(BSON("$natural" << -1)));
bb.appendDate("masterFirst", first["ts"].timestampTime());
bb.appendDate("masterLast", last["ts"].timestampTime());
const auto lag = (last["ts"].timestampTime() - s["syncedTo"].timestampTime());
bb.append("lagSeconds", durationCount<Milliseconds>(lag) / 1000.0);
}
conn.done();
}
sources.append(BSONObjBuilder::numStr(n++), bb.obj());
}
sources.done();
replCoord->appendSlaveInfoData(&result);
}
}