/** write an op to the oplog that is already built.
todo : make _logOpRS() call this so we don't repeat ourself?
*/
OpTime _logOpObjRS(OperationContext* txn, const BSONObj& op) {
Lock::DBLock lk(txn->lockState(), "local", newlm::MODE_X);
// XXX soon this needs to be part of an outer WUOW not its own.
// We can't do this yet due to locking limitations.
WriteUnitOfWork wunit(txn);
const OpTime ts = op["ts"]._opTime();
long long hash = op["h"].numberLong();
{
if ( localOplogRSCollection == 0 ) {
Client::Context ctx(txn, rsoplog);
localDB = ctx.db();
verify( localDB );
localOplogRSCollection = localDB->getCollection(txn, rsoplog);
massert(13389,
"local.oplog.rs missing. did you drop it? if so restart server",
localOplogRSCollection);
}
Client::Context ctx(txn, rsoplog, localDB);
checkOplogInsert(localOplogRSCollection->insertDocument(txn, op, false));
ReplicationCoordinator* replCoord = getGlobalReplicationCoordinator();
OpTime myLastOptime = replCoord->getMyLastOptime();
if (!(myLastOptime < ts)) {
severe() << "replication oplog stream went back in time. previous timestamp: "
<< myLastOptime << " newest timestamp: " << ts;
fassertFailedNoTrace(18905);
}
BackgroundSync* bgsync = BackgroundSync::get();
// Keep this up-to-date, in case we step up to primary.
bgsync->setLastAppliedHash(hash);
ctx.getClient()->setLastOp( ts );
replCoord->setMyLastOptime(txn, ts);
bgsync->notify();
}
setNewOptime(ts);
wunit.commit();
return ts;
}
BSONObj generateSection(OperationContext* txn, const BSONElement& configElement) const {
ReplicationCoordinator* replCoord = getGlobalReplicationCoordinator();
if (!replCoord->isReplEnabled()) {
return BSONObj();
}
BSONObjBuilder result;
// TODO(siyuan) Output term of OpTime
result.append("latestOptime", replCoord->getMyLastOptime().getTimestamp());
const std::string& oplogNS =
replCoord->getReplicationMode() == ReplicationCoordinator::modeReplSet
? rsOplogName
: masterSlaveOplogName;
BSONObj o;
uassert(17347,
"Problem reading earliest entry from oplog",
Helpers::getSingleton(txn, oplogNS.c_str(), o));
result.append("earliestOptime", o["ts"].timestamp());
return result.obj();
}
void ReplClientInfo::setLastOpToSystemLastOpTime(OperationContext* txn) {
ReplicationCoordinator* replCoord = repl::ReplicationCoordinator::get(txn->getServiceContext());
if (replCoord->isReplEnabled() && txn->writesAreReplicated()) {
setLastOp(replCoord->getMyLastOptime());
}
}