void SyncTail::handleSlaveDelay(const BSONObj& lastOp) {
ReplicationCoordinator* replCoord = getGlobalReplicationCoordinator();
int slaveDelaySecs = durationCount<Seconds>(replCoord->getSlaveDelaySecs());
// ignore slaveDelay if the box is still initializing. once
// it becomes secondary we can worry about it.
if (slaveDelaySecs > 0 && replCoord->getMemberState().secondary()) {
const Timestamp ts = lastOp["ts"].timestamp();
long long a = ts.getSecs();
long long b = time(0);
long long lag = b - a;
long long sleeptime = slaveDelaySecs - lag;
if (sleeptime > 0) {
uassert(12000,
"rs slaveDelay differential too big check clocks and systems",
sleeptime < 0x40000000);
if (sleeptime < 60) {
sleepsecs((int)sleeptime);
} else {
warning() << "slavedelay causing a long sleep of " << sleeptime << " seconds";
// sleep(hours) would prevent reconfigs from taking effect & such!
long long waitUntil = b + sleeptime;
while (time(0) < waitUntil) {
sleepsecs(6);
// Handle reconfigs that changed the slave delay
if (durationCount<Seconds>(replCoord->getSlaveDelaySecs()) != slaveDelaySecs)
break;
}
}
}
} // endif slaveDelay
}
StatusWith<RecordId> keyForOptime(const Timestamp& opTime) {
// Make sure secs and inc wouldn't be negative if treated as signed. This ensures that they
// don't sort differently when put in a RecordId. It also avoids issues with Null/Invalid
// RecordIds
if (opTime.getSecs() > uint32_t(std::numeric_limits<int32_t>::max()))
return StatusWith<RecordId>(ErrorCodes::BadValue, "ts secs too high");
if (opTime.getInc() > uint32_t(std::numeric_limits<int32_t>::max()))
return StatusWith<RecordId>(ErrorCodes::BadValue, "ts inc too high");
const RecordId out = RecordId(opTime.getSecs(), opTime.getInc());
if (out <= RecordId::min())
return StatusWith<RecordId>(ErrorCodes::BadValue, "ts too low");
if (out >= RecordId::max())
return StatusWith<RecordId>(ErrorCodes::BadValue, "ts too high");
return StatusWith<RecordId>(out);
}
