Examples with PeerProfile net.i2p.router.peermanager.PeerProfile used on opensource projects

Example 6 with PeerProfile

use of net.i2p.router.peermanager.PeerProfile in project i2p.i2p by i2p.

the class KademliaNetworkDatabaseFacade method getPeerTimeout.

/**
 * todo: does this need more tuning?
 */
public int getPeerTimeout(Hash peer) {
    PeerProfile prof = _context.profileOrganizer().getProfile(peer);
    double responseTime = MAX_PER_PEER_TIMEOUT;
    if (prof != null && prof.getIsExpandedDB()) {
        responseTime = prof.getDbResponseTime().getRate(24 * 60 * 60 * 1000l).getAverageValue();
        // if 0 then there is no data, set to max.
        if (responseTime <= 0 || responseTime > MAX_PER_PEER_TIMEOUT)
            responseTime = MAX_PER_PEER_TIMEOUT;
        else if (responseTime < MIN_PER_PEER_TIMEOUT)
            responseTime = MIN_PER_PEER_TIMEOUT;
    }
    // give it up to 3x the average response time
    return TIMEOUT_MULTIPLIER * (int) responseTime;
}

Example 7 with PeerProfile

use of net.i2p.router.peermanager.PeerProfile in project i2p.i2p by i2p.

the class FloodfillMonitorJob method shouldBeFloodfill.

private boolean shouldBeFloodfill() {
    if (!SigType.ECDSA_SHA256_P256.isAvailable())
        return false;
    // Hidden trumps netDb.floodfillParticipant=true
    if (getContext().router().isHidden())
        return false;
    String enabled = getContext().getProperty(PROP_FLOODFILL_PARTICIPANT, "auto");
    if ("true".equals(enabled))
        return true;
    if ("false".equals(enabled))
        return false;
    // Only if not shutting down...
    if (getContext().router().gracefulShutdownInProgress())
        return false;
    // ARM ElG decrypt is too slow
    if (SystemVersion.isARM() || SystemVersion.isAndroid())
        return false;
    if (getContext().getBooleanProperty(UDPTransport.PROP_LAPTOP_MODE))
        return false;
    // need IPv4 - The setting is the same for both SSU and NTCP, so just take the SSU one
    if (TransportUtil.getIPv6Config(getContext(), "SSU") == TransportUtil.IPv6Config.IPV6_ONLY)
        return false;
    // need both transports
    if (!TransportManager.isNTCPEnabled(getContext()))
        return false;
    if (!getContext().getBooleanPropertyDefaultTrue(TransportManager.PROP_ENABLE_UDP))
        return false;
    if (getContext().commSystem().isInBadCountry())
        return false;
    String country = getContext().commSystem().getOurCountry();
    // anonymous proxy, satellite provider (not in bad country list)
    if ("a1".equals(country) || "a2".equals(country))
        return false;
    // Only if up a while...
    if (getContext().router().getUptime() < MIN_UPTIME)
        return false;
    RouterInfo ri = getContext().router().getRouterInfo();
    if (ri == null)
        return false;
    char bw = ri.getBandwidthTier().charAt(0);
    // Only if class M, N, O, P, X
    if (bw != Router.CAPABILITY_BW64 && bw != Router.CAPABILITY_BW128 && bw != Router.CAPABILITY_BW256 && bw != Router.CAPABILITY_BW512 && bw != Router.CAPABILITY_BW_UNLIMITED)
        return false;
    // This list will not include ourselves...
    List<Hash> floodfillPeers = _facade.getFloodfillPeers();
    long now = getContext().clock().now();
    // We know none at all! Must be our turn...
    if (floodfillPeers == null || floodfillPeers.isEmpty()) {
        _lastChanged = now;
        return true;
    }
    // Only change status every so often
    boolean wasFF = _facade.floodfillEnabled();
    if (_lastChanged + MIN_CHANGE_DELAY > now)
        return wasFF;
    // This is similar to the qualification we do in FloodOnlySearchJob.runJob().
    // Count the "good" ff peers.
    // 
    // Who's not good?
    // the unheard-from, unprofiled, failing, unreachable and banlisted ones.
    // We should hear from floodfills pretty frequently so set a 60m time limit.
    // If unprofiled we haven't talked to them in a long time.
    // We aren't contacting the peer directly, so banlist doesn't strictly matter,
    // but it's a bad sign, and we often banlist a peer before we fail it...
    // 
    // Future: use Integration calculation
    // 
    int ffcount = floodfillPeers.size();
    int failcount = 0;
    long before = now - 60 * 60 * 1000;
    for (Hash peer : floodfillPeers) {
        PeerProfile profile = getContext().profileOrganizer().getProfile(peer);
        if (profile == null || profile.getLastHeardFrom() < before || profile.getIsFailing() || getContext().banlist().isBanlisted(peer) || getContext().commSystem().wasUnreachable(peer))
            failcount++;
    }
    if (wasFF)
        ffcount++;
    int good = ffcount - failcount;
    boolean happy = getContext().router().getRouterInfo().getCapabilities().indexOf('R') >= 0;
    // TODO - limit may still be too high
    // For reference, the avg lifetime job lag on my Pi is 6.
    // Should we consider avg. dropped ff jobs?
    RateStat lagStat = getContext().statManager().getRate("jobQueue.jobLag");
    RateStat queueStat = getContext().statManager().getRate("router.tunnelBacklog");
    happy = happy && lagStat.getRate(60 * 60 * 1000L).getAvgOrLifetimeAvg() < 25;
    happy = happy && queueStat.getRate(60 * 60 * 1000L).getAvgOrLifetimeAvg() < 5;
    // Only if we're pretty well integrated...
    happy = happy && _facade.getKnownRouters() >= 400;
    happy = happy && getContext().commSystem().countActivePeers() >= 50;
    happy = happy && getContext().tunnelManager().getParticipatingCount() >= 25;
    happy = happy && Math.abs(getContext().clock().getOffset()) < 10 * 1000;
    // We need an address and no introducers
    if (happy) {
        RouterAddress ra = getContext().router().getRouterInfo().getTargetAddress("SSU");
        if (ra == null)
            happy = false;
        else {
            if (ra.getOption("ihost0") != null)
                happy = false;
        }
    }
    double elG = 0;
    RateStat stat = getContext().statManager().getRate("crypto.elGamal.decrypt");
    if (stat != null) {
        Rate rate = stat.getRate(60 * 60 * 1000L);
        if (rate != null) {
            elG = rate.getAvgOrLifetimeAvg();
            happy = happy && elG <= 40.0d;
        }
    }
    if (_log.shouldLog(Log.DEBUG)) {
        final RouterContext rc = getContext();
        final String log = String.format("FF criteria breakdown: happy=%b, capabilities=%s, maxLag=%d, known=%d, " + "active=%d, participating=%d, offset=%d, ssuAddr=%s ElG=%f", happy, rc.router().getRouterInfo().getCapabilities(), rc.jobQueue().getMaxLag(), _facade.getKnownRouters(), rc.commSystem().countActivePeers(), rc.tunnelManager().getParticipatingCount(), Math.abs(rc.clock().getOffset()), rc.router().getRouterInfo().getTargetAddress("SSU").toString(), elG);
        _log.debug(log);
    }
    // Too few, and we're reachable, let's volunteer
    if (good < MIN_FF && happy) {
        if (!wasFF) {
            _lastChanged = now;
            _log.logAlways(Log.INFO, "Only " + good + " ff peers and we want " + MIN_FF + " so we are becoming floodfill");
        }
        return true;
    }
    // Too many, or we aren't reachable, let's stop
    if (good > MAX_FF || (good > MIN_FF && !happy)) {
        if (wasFF) {
            _lastChanged = now;
            _log.logAlways(Log.INFO, "Have " + good + " ff peers and we need only " + MIN_FF + " to " + MAX_FF + " so we are disabling floodfill; reachable? " + happy);
        }
        return false;
    }
    if (_log.shouldLog(Log.INFO))
        _log.info("Have " + good + " ff peers, not changing, enabled? " + wasFF + "; reachable? " + happy);
    return wasFF;
}

Example 8 with PeerProfile

use of net.i2p.router.peermanager.PeerProfile in project i2p.i2p by i2p.

the class FloodfillPeerSelector method selectFloodfillParticipantsIncludingUs.

/**
 *  See above for description
 *  List MAY CONTAIN our own hash unless included in toIgnore
 *  @param key the ROUTING key (NOT the original key)
 *  @param toIgnore can be null
 *  @param kbuckets now unused
 */
private List<Hash> selectFloodfillParticipantsIncludingUs(Hash key, int howMany, Set<Hash> toIgnore, KBucketSet<Hash> kbuckets) {
    List<Hash> ffs = selectFloodfillParticipants(toIgnore, kbuckets);
    TreeSet<Hash> sorted = new TreeSet<Hash>(new XORComparator<Hash>(key));
    sorted.addAll(ffs);
    List<Hash> rv = new ArrayList<Hash>(howMany);
    List<Hash> okff = new ArrayList<Hash>(ffs.size());
    List<Hash> badff = new ArrayList<Hash>(ffs.size());
    int found = 0;
    long now = _context.clock().now();
    long installed = _context.getProperty("router.firstInstalled", 0L);
    boolean enforceHeard = installed > 0 && (now - installed) > INSTALL_AGE;
    double maxFailRate = 100;
    if (_context.router().getUptime() > 60 * 60 * 1000) {
        RateStat rs = _context.statManager().getRate("peer.failedLookupRate");
        if (rs != null) {
            Rate r = rs.getRate(60 * 60 * 1000);
            if (r != null) {
                double currentFailRate = r.getAverageValue();
                maxFailRate = Math.max(0.20d, 1.5d * currentFailRate);
            }
        }
    }
    // 5 == FNDF.MAX_TO_FLOOD + 1
    int limit = Math.max(5, howMany);
    limit = Math.min(limit, ffs.size());
    MaskedIPSet maskedIPs = new MaskedIPSet(limit * 3);
    // split sorted list into 3 sorted lists
    for (int i = 0; found < howMany && i < limit; i++) {
        Hash entry = sorted.first();
        if (entry == null)
            // shouldn't happen
            break;
        sorted.remove(entry);
        // put anybody in the same /16 at the end
        RouterInfo info = _context.netDb().lookupRouterInfoLocally(entry);
        MaskedIPSet entryIPs = new MaskedIPSet(_context, entry, info, 2);
        boolean sameIP = false;
        for (String ip : entryIPs) {
            if (!maskedIPs.add(ip))
                sameIP = true;
        }
        if (sameIP) {
            badff.add(entry);
            if (_log.shouldLog(Log.DEBUG))
                _log.debug("Same /16, family, or port: " + entry);
        } else if (info != null && now - info.getPublished() > 3 * 60 * 60 * 1000) {
            badff.add(entry);
            if (_log.shouldLog(Log.DEBUG))
                _log.debug("Old: " + entry);
        } else if (info != null && _context.commSystem().isInBadCountry(info)) {
            badff.add(entry);
            if (_log.shouldLog(Log.DEBUG))
                _log.debug("Bad country: " + entry);
        } else if (info != null && info.getBandwidthTier().equals("L")) {
            badff.add(entry);
            if (_log.shouldLog(Log.DEBUG))
                _log.debug("Slow: " + entry);
        } else {
            PeerProfile prof = _context.profileOrganizer().getProfile(entry);
            double maxGoodRespTime = MAX_GOOD_RESP_TIME;
            RateStat ttst = _context.statManager().getRate("tunnel.testSuccessTime");
            if (ttst != null) {
                Rate tunnelTestTime = ttst.getRate(10 * 60 * 1000);
                if (tunnelTestTime != null && tunnelTestTime.getAverageValue() > 500)
                    maxGoodRespTime = 2 * tunnelTestTime.getAverageValue();
            }
            if (prof != null) {
                if (enforceHeard && prof.getFirstHeardAbout() > now - HEARD_AGE) {
                    if (_log.shouldLog(Log.DEBUG))
                        _log.debug("Bad (new): " + entry);
                    badff.add(entry);
                } else if (prof.getDBHistory() != null) {
                    if (prof.getDbResponseTime().getRate(10 * 60 * 1000).getAverageValue() < maxGoodRespTime && prof.getDBHistory().getLastStoreFailed() < now - NO_FAIL_STORE_GOOD && prof.getDBHistory().getLastLookupFailed() < now - NO_FAIL_LOOKUP_GOOD && prof.getDBHistory().getFailedLookupRate().getRate(60 * 60 * 1000).getAverageValue() < maxFailRate) {
                        // good
                        if (_log.shouldLog(Log.DEBUG))
                            _log.debug("Good: " + entry);
                        rv.add(entry);
                        found++;
                    } else if (prof.getDBHistory().getLastStoreFailed() <= prof.getDBHistory().getLastStoreSuccessful() || prof.getDBHistory().getLastLookupFailed() <= prof.getDBHistory().getLastLookupSuccessful() || (prof.getDBHistory().getLastStoreFailed() < now - NO_FAIL_STORE_OK && prof.getDBHistory().getLastLookupFailed() < now - NO_FAIL_LOOKUP_OK)) {
                        if (_log.shouldLog(Log.DEBUG))
                            _log.debug("OK: " + entry);
                        okff.add(entry);
                    } else {
                        if (_log.shouldLog(Log.DEBUG))
                            _log.debug("Bad (DB): " + entry);
                        badff.add(entry);
                    }
                } else {
                    // no DBHistory
                    if (_log.shouldLog(Log.DEBUG))
                        _log.debug("Bad (no hist): " + entry);
                    badff.add(entry);
                }
            } else {
                // no profile
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("Bad (no prof): " + entry);
                badff.add(entry);
            }
        }
    }
    if (_log.shouldLog(Log.INFO))
        _log.info("Good: " + rv + " OK: " + okff + " Bad: " + badff);
    // Put the ok floodfills after the good floodfills
    for (int i = 0; found < howMany && i < okff.size(); i++) {
        rv.add(okff.get(i));
        found++;
    }
    // Put the "bad" floodfills after the ok floodfills
    for (int i = 0; found < howMany && i < badff.size(); i++) {
        rv.add(badff.get(i));
        found++;
    }
    return rv;
}