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Thomas Vachuska
204cb6ca 1 parent 6f90c59b

Fixing port stats rate calculation. 

Change-Id: Ic4c803f58a53c293ae05bc0c207d7e23546f7158
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Showing 3 changed files with 44 additions and 65 deletions
......@@ -28,12 +28,12 @@ public class DefaultLoad implements Load {
private final long current;
private final long previous;
private final long time;
private final int interval;
private final long interval;
/**
* Indicates the flow statistics poll interval in seconds.
*/
private static int pollInterval = 10;
private static long pollInterval = 10;
/**
* Creates an invalid load.
......@@ -63,7 +63,7 @@ public class DefaultLoad implements Load {
* @param previous the previous value
* @param interval poll interval for this load
*/
public DefaultLoad(long current, long previous, int interval) {
public DefaultLoad(long current, long previous, long interval) {
checkArgument(interval > 0, "Interval must be greater than 0");
this.current = current;
this.previous = previous;
......@@ -78,7 +78,7 @@ public class DefaultLoad implements Load {
*
* @param newPollInterval poll interval duration in seconds
*/
public static void setPollInterval(int newPollInterval) {
public static void setPollInterval(long newPollInterval) {
pollInterval = newPollInterval;
}
......
......@@ -49,8 +49,8 @@ public class PortStatisticsManager implements PortStatisticsService {
private final Logger log = getLogger(getClass());
private static final int SECOND = 1_000; // milliseconds
private static final long STALE_LIMIT = 15_000; // milliseconds
private static final long POLL_FREQUENCY = 10_000; // milliseconds
private static final long STALE_LIMIT = (long) (1.5 * POLL_FREQUENCY);
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
protected DeviceService deviceService;
......@@ -77,11 +77,15 @@ public class PortStatisticsManager implements PortStatisticsService {
DataPoint c = current.get(connectPoint);
DataPoint p = previous.get(connectPoint);
long now = System.currentTimeMillis();
if (c != null && p != null && (now - c.time < STALE_LIMIT) &&
(c.time > p.time + SECOND) &&
(c.stats.bytesSent() - p.stats.bytesSent() >= 0)) {
if (c != null && p != null && (now - c.time < STALE_LIMIT)) {
if (c.stats.durationSec() > p.stats.durationSec() &&
c.stats.bytesSent() >= p.stats.bytesSent() &&
c.stats.durationSec() >= POLL_FREQUENCY / 1_000) {
return new DefaultLoad(c.stats.bytesSent(), p.stats.bytesSent(),
(int) (c.time - p.time) / SECOND);
c.stats.durationSec() - p.stats.durationSec());
}
return new DefaultLoad(c.stats.bytesSent(), 0, c.stats.durationSec());
}
return null;
}
......@@ -114,15 +118,15 @@ public class PortStatisticsManager implements PortStatisticsService {
// Updates the port stats for the specified port
private void updatePortData(DeviceId deviceId, PortStatistics stats) {
ConnectPoint cp = new ConnectPoint(deviceId, portNumber(stats.port()));
DataPoint c = current.get(cp);
// Create a new data point and make it the current one
current.put(cp, new DataPoint(stats));
// If we have a current data point, demote it to previous
DataPoint c = current.get(cp);
if (c != null) {
previous.put(cp, c);
}
// Create a new data point and make it the current one
current.put(cp, new DataPoint(stats));
}
// Cleans all port loads for the specified device
......
......@@ -16,7 +16,6 @@
package org.onosproject.ui.impl;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.google.common.collect.ImmutableList;
......@@ -90,6 +89,7 @@ import static com.google.common.base.Strings.isNullOrEmpty;
import static org.onosproject.cluster.ClusterEvent.Type.INSTANCE_ADDED;
import static org.onosproject.cluster.ClusterEvent.Type.INSTANCE_REMOVED;
import static org.onosproject.cluster.ControllerNode.State.ACTIVE;
import static org.onosproject.net.DefaultEdgeLink.createEdgeLink;
import static org.onosproject.net.DeviceId.deviceId;
import static org.onosproject.net.HostId.hostId;
import static org.onosproject.net.LinkKey.linkKey;
......@@ -101,7 +101,8 @@ import static org.onosproject.net.host.HostEvent.Type.HOST_ADDED;
import static org.onosproject.net.host.HostEvent.Type.HOST_REMOVED;
import static org.onosproject.net.link.LinkEvent.Type.LINK_ADDED;
import static org.onosproject.net.link.LinkEvent.Type.LINK_REMOVED;
import static org.onosproject.ui.impl.TopologyViewMessageHandlerBase.StatsType.*;
import static org.onosproject.ui.impl.TopologyViewMessageHandlerBase.StatsType.FLOW;
import static org.onosproject.ui.impl.TopologyViewMessageHandlerBase.StatsType.PORT;
/**
* Facility for creating messages bound for the topology viewer.
......@@ -126,7 +127,7 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
private static final String KB_UNIT = "KB";
private static final String B_UNIT = "B";
private static final long BPS_THRESHOLD = 1024;
private static final double BPS_THRESHOLD = 4 * KB;
protected ServiceDirectory directory;
protected ClusterService clusterService;
......@@ -567,16 +568,16 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
pathNodeT.set("labels", labelsT);
paths.add(pathNodeT);
for (BiLink link : consolidateLinks(linkService.getLinks())) {
Map<LinkKey, BiLink> biLinks = consolidateLinks(linkService.getLinks());
addEdgeLinks(biLinks);
for (BiLink link : biLinks.values()) {
boolean bi = link.two != null;
if (isInfrastructureEgress(link.one) ||
(bi && isInfrastructureEgress(link.two))) {
if (type == FLOW) {
link.addLoad(flowStatsService.load(link.one));
link.addLoad(bi ? flowStatsService.load(link.two) : null);
link.addLoad(getLinkLoad(link.one));
link.addLoad(bi ? getLinkLoad(link.two) : null);
} else if (type == PORT) {
link.addLoad(portStatsService.load(link.one.src()), BPS_THRESHOLD);
link.addLoad(bi ? portStatsService.load(link.two.src()) : null, BPS_THRESHOLD);
link.addLoad(portStatsService.load(link.one.dst()), BPS_THRESHOLD);
}
if (link.hasTraffic) {
linksNodeT.add(compactLinkString(link.one));
......@@ -588,16 +589,28 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
labelsN.add("");
}
}
}
return JsonUtils.envelope("showTraffic", 0, payload);
}
private Collection<BiLink> consolidateLinks(Iterable<Link> links) {
private Load getLinkLoad(Link link) {
if (link.src().elementId() instanceof DeviceId) {
return flowStatsService.load(link);
}
return null;
}
private void addEdgeLinks(Map<LinkKey, BiLink> biLinks) {
hostService.getHosts().forEach(host -> {
addLink(biLinks, createEdgeLink(host.location(), false));
});
}
private Map<LinkKey, BiLink> consolidateLinks(Iterable<Link> links) {
Map<LinkKey, BiLink> biLinks = new HashMap<>();
for (Link link : links) {
addLink(biLinks, link);
}
return biLinks.values();
return biLinks;
}
// Produces JSON message to trigger flow overview visualization
......@@ -708,7 +721,6 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
if (links != null) {
for (Link link : links) {
BiLink biLink = addLink(biLinks, link);
if (isInfrastructureEgress(link)) {
if (showTraffic) {
biLink.addLoad(flowStatsService.load(link));
}
......@@ -716,7 +728,6 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
}
}
}
}
static BiLink addLink(Map<LinkKey, BiLink> biLinks, Link link) {
......@@ -731,37 +742,6 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
return biLink;
}
// Adds the link segments (path or tree) associated with the specified
// connectivity intent
protected void addPathTraffic(ArrayNode paths, String type, String trafficType,
Iterable<Link> links) {
ObjectNode pathNode = objectNode();
ArrayNode linksNode = arrayNode();
if (links != null) {
ArrayNode labels = arrayNode();
boolean hasTraffic = false;
for (Link link : links) {
if (isInfrastructureEgress(link)) {
linksNode.add(compactLinkString(link));
Load load = flowStatsService.load(link);
String label = "";
if (load.rate() > 0) {
hasTraffic = true;
label = formatBytes(load.latest());
}
labels.add(label);
}
}
pathNode.put("class", hasTraffic ? type + " " + trafficType : type);
pathNode.put("traffic", hasTraffic);
pathNode.set("links", linksNode);
pathNode.set("labels", labels);
paths.add(pathNode);
}
}
// Poor-mans formatting to get the labels with byte counts looking nice.
private String formatBytes(long bytes) {
// TODO: multiply everything by 8 to compute bits/second
......@@ -790,10 +770,6 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
return format.format(number);
}
private boolean isInfrastructureEgress(Link link) {
return link.src().elementId() instanceof DeviceId;
}
// Produces compact string representation of a link.
private static String compactLinkString(Link link) {
return String.format(COMPACT, link.src().elementId(), link.src().port(),
......@@ -802,7 +778,6 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
// Produces JSON property details.
private ObjectNode json(String id, String type, Prop... props) {
ObjectMapper mapper = new ObjectMapper();
ObjectNode result = objectNode()
.put("id", id).put("type", type);
ObjectNode pnode = objectNode();
......@@ -848,7 +823,7 @@ public abstract class TopologyViewMessageHandlerBase extends UiMessageHandler {
addLoad(load, 0);
}
void addLoad(Load load, long threshold) {
void addLoad(Load load, double threshold) {
if (load != null) {
this.hasTraffic = hasTraffic || load.rate() > threshold;
this.bytes += load.latest();
......