blob: e728d1ea914253178b64bea6036e0b653c635a10 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.service.health;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.vespa.applicationmodel.ClusterId;
import com.yahoo.vespa.applicationmodel.ConfigId;
import com.yahoo.vespa.applicationmodel.ServiceStatus;
import com.yahoo.vespa.applicationmodel.ServiceStatusInfo;
import com.yahoo.vespa.applicationmodel.ServiceType;
import com.yahoo.vespa.service.model.ServiceId;
import com.yahoo.vespa.service.monitor.ServiceStatusProvider;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* Responsible for monitoring a whole application using /state/v1/health.
*
* @author hakon
*/
class ApplicationHealthMonitor implements ServiceStatusProvider, AutoCloseable {
private final ApplicationId applicationId;
private final StateV1HealthModel healthModel;
private final Map<ServiceId, HealthMonitor> monitors = new HashMap<>();
ApplicationHealthMonitor(ApplicationId applicationId, StateV1HealthModel healthModel) {
this.applicationId = applicationId;
this.healthModel = healthModel;
}
void monitor(ApplicationInfo applicationInfo) {
if (!applicationInfo.getApplicationId().equals(applicationId)) {
throw new IllegalArgumentException("Monitors " + applicationId + " but was asked to monitor " + applicationInfo.getApplicationId());
}
Map<ServiceId, HealthEndpoint> endpoints = healthModel.extractHealthEndpoints(applicationInfo);
// Remove obsolete monitors
Set<ServiceId> removed = new HashSet<>(monitors.keySet());
removed.removeAll(endpoints.keySet());
removed.stream().map(monitors::remove).forEach(HealthMonitor::close);
// Add new monitors.
endpoints.forEach((serviceId, endpoint) -> monitors.computeIfAbsent(serviceId, ignoredId -> endpoint.startMonitoring()));
}
@Override
public ServiceStatusInfo getStatus(ApplicationId applicationId,
ClusterId clusterId,
ServiceType serviceType,
ConfigId configId) {
ServiceId serviceId = new ServiceId(applicationId, clusterId, serviceType, configId);
HealthMonitor monitor = monitors.get(serviceId);
if (monitor == null) {
return new ServiceStatusInfo(ServiceStatus.NOT_CHECKED);
}
return monitor.getStatus();
}
@Override
public void close() {
monitors.values().forEach(HealthMonitor::close);
monitors.clear();
}
}
|