Examples with LatencyRecord org.openkilda.wfm.topology.isllatency.model.LatencyRecord used on opensource projects

Example 1 with LatencyRecord

use of org.openkilda.wfm.topology.isllatency.model.LatencyRecord in project open-kilda by telstra.

the class IslStatsServiceTest method handleRoundTripLatencyForReverseIslTest.

@Test
public void handleRoundTripLatencyForReverseIslTest() {
    // RTL:         ...........................
    // Reverse RTL: ...X.X.X.X.X.X.X.X.X.X.....
    // OneWay:      ..X.X.X.X.X.X.X.X.X.X......
    List<LatencyRecord> buffer = new ArrayList<>();
    Instant time = Instant.now();
    for (int i = 0; i < 10; i++) {
        sendForwardOneWayLatency(i + 10000, time);
        time = time.plusMillis(10);
        sendReverseRoundTripLatency(i, time);
        time = time.plusSeconds(1);
        // next one way packet will get latency from reverse ISL. but we will get timestamp for one way packet
        buffer.add(new LatencyRecord(i, time.toEpochMilli()));
    }
    // we must emit reverse RTL on each one way packet. Last RTL packet was received after last one way packet
    // so we wouldn't emit it.
    buffer.remove(buffer.size() - 1);
    assertEmitLatency(buffer);
}

Example 2 with LatencyRecord

use of org.openkilda.wfm.topology.isllatency.model.LatencyRecord in project open-kilda by telstra.

the class IslStatsServiceTest method handleOneWayLatencyEmitOnEachIslDownTest.

@Test
public void handleOneWayLatencyEmitOnEachIslDownTest() throws InterruptedException {
    // RTL:      ............................
    // OneWay:   ..X.X.X.X........X.X.X.X....
    // Timeout:  ...|_________|...|_________|
    // ISL down: .........^..............^...
    List<LatencyRecord> buffer = new ArrayList<>();
    Instant time = Instant.now().minusSeconds(LATENCY_TIMEOUT).minusMillis(500);
    for (int i = 0; i < 4; i++) {
        sendForwardOneWayLatency(i, time);
        // waiting for timeout and collecting one way records
        verifyNoMoreInteractions(carrier);
        buffer.add(new LatencyRecord(i, time.toEpochMilli()));
        time = time.plusSeconds(1);
    }
    buffer.remove(0);
    islStatsService.handleIstStatusUpdateNotification(new IslStatusUpdateNotification(SWITCH_ID_1, PORT_1, SWITCH_ID_2, PORT_2, INACTIVE));
    time = Instant.now();
    int secondPartOfPacketsSize = 4;
    for (int i = 0; i < secondPartOfPacketsSize; i++) {
        sendForwardOneWayLatency(i + secondPartOfPacketsSize, time);
        buffer.add(new LatencyRecord(i + secondPartOfPacketsSize, time.toEpochMilli()));
        time = time.plusMillis(500);
        // need to real shift of system clock
        sleep(50);
    }
    islStatsService.handleIstStatusUpdateNotification(new IslStatusUpdateNotification(SWITCH_ID_1, PORT_1, SWITCH_ID_2, PORT_2, INACTIVE));
    assertEmitLatency(buffer);
}

Example 3 with LatencyRecord

use of org.openkilda.wfm.topology.isllatency.model.LatencyRecord in project open-kilda by telstra.

the class IslStatsServiceTest method handleRoundTripLatencyAndOneWayLatencyTest.

@Test
public void handleRoundTripLatencyAndOneWayLatencyTest() {
    // RTL:    ...X.X.X.X.X.X.X.X.X.X.....
    // OneWay: ..X.X.X.X.X.X.X.X.X.X......
    List<LatencyRecord> buffer = new ArrayList<>();
    Instant time = Instant.now();
    for (int i = 0; i < 10; i++) {
        sendForwardOneWayLatency(i + 10000, time);
        time = time.plusMillis(10);
        sendForwardRoundTripLatency(i, time);
        buffer.add(new LatencyRecord(i, time.toEpochMilli()));
        time = time.plusSeconds(LATENCY_TIMEOUT / 2);
    }
    assertEmitLatency(buffer);
}

Example 4 with LatencyRecord

use of org.openkilda.wfm.topology.isllatency.model.LatencyRecord in project open-kilda by telstra.

the class IslLatencyService method handleOneWayIslLatency.

/**
 * Handle one way latency metric.
 *
 * @param data isl one way latency info data
 * @param timestamp latency timestamp
 */
public void handleOneWayIslLatency(IslOneWayLatency data, long timestamp) {
    log.debug("Received one way latency {} for ISL {}_{} ===> {}_{}, Packet Id: {}", data.getLatency(), data.getSrcSwitchId(), data.getSrcPortNo(), data.getDstSwitchId(), data.getDstPortNo(), data.getPacketId());
    IslKey islKey = new IslKey(data);
    oneWayLatencyStorage.putIfAbsent(islKey, new LinkedList<>());
    oneWayLatencyStorage.get(islKey).add(new LatencyRecord(data.getLatency(), timestamp));
    if (isUpdateRequired(islKey)) {
        updateOneWayLatencyIfNeeded(data, islKey);
    }
}

Example 5 with LatencyRecord

use of org.openkilda.wfm.topology.isllatency.model.LatencyRecord in project open-kilda by telstra.

the class IslLatencyService method updateOneWayLatencyIfNeeded.

private void updateOneWayLatencyIfNeeded(IslOneWayLatency data, IslKey islKey) {
    Queue<LatencyRecord> oneWayRecords = oneWayLatencyStorage.get(islKey);
    pollExpiredRecords(oneWayRecords);
    Queue<LatencyRecord> roundTripRecords = roundTripLatencyStorage.get(islKey);
    pollExpiredRecords(roundTripRecords);
    if (roundTripRecords != null && !roundTripRecords.isEmpty()) {
        // next round trip latency packet will update ISL latency
        return;
    }
    IslKey reverseIslKey = islKey.getReverse();
    Queue<LatencyRecord> reverseRoundTripRecords = roundTripLatencyStorage.get(reverseIslKey);
    pollExpiredRecords(reverseRoundTripRecords);
    boolean updated;
    if (reverseRoundTripRecords != null && !reverseRoundTripRecords.isEmpty()) {
        // reverse ISL has round trip latency records. We can use them for forward ISL
        long averageReverseLatency = calculateAverageLatency(reverseRoundTripRecords);
        updated = updateLatencyInDataBase(data, averageReverseLatency);
    } else {
        // There are no round trip latency records for both ISL direction. We have to use one way latency records
        if (oneWayRecords.isEmpty()) {
            log.warn("Couldn't update round trip latency {} for ISL {}_{} === {}_{}. " + "There is no valid latency records. Packet Id: {}", data.getLatency(), data.getSrcSwitchId(), data.getSrcPortNo(), data.getDstSwitchId(), data.getDstPortNo(), data.getPacketId());
            return;
        }
        long averageOneWayLatency = calculateAverageLatency(oneWayRecords);
        updated = updateLatencyInDataBase(data, averageOneWayLatency);
    }
    if (updated) {
        nextUpdateTimeMap.put(islKey, getNextUpdateTime());
        roundTripLatencyIsSet.remove(islKey);
    }
}