func (p *apPool) applyPluginMeta(ap *availablePlugin) error {
// Checking if plugin is exclusive
// (only one instance should be running).
if ap.meta.Exclusive {
p.max = 1
}
// Set the cache TTL
cacheTTL := strategy.GlobalCacheExpiration
// if the plugin exposes a default TTL that is greater the the global default use it
if ap.meta.CacheTTL != 0 && ap.meta.CacheTTL > strategy.GlobalCacheExpiration {
cacheTTL = ap.meta.CacheTTL
}
// Set the routing and caching strategy
switch ap.meta.RoutingStrategy {
case plugin.DefaultRouting:
p.strategy = strategy.NewLRU(cacheTTL)
default:
return ErrBadStrategy
}
// set concurrency count
p.concurrencyCount = ap.meta.ConcurrencyCount
return nil
}
func TestRoutingCachingStrategy(t *testing.T) {
Convey("Given loaded plugins that use sticky routing", t, func() {
config := NewConfig()
config.Plugins.All.AddItem("password", ctypes.ConfigValueStr{Value: "testval"})
c := New(OptSetConfig(config))
c.Start()
lpe := newListenToPluginEvent()
c.eventManager.RegisterHandler("Control.PluginLoaded", lpe)
_, e := load(c, PluginPath)
So(e, ShouldBeNil)
if e != nil {
t.FailNow()
}
metric, err := c.metricCatalog.Get([]string{"intel", "mock", "foo"}, 2)
So(err, ShouldBeNil)
So(metric.NamespaceAsString(), ShouldResemble, "/intel/mock/foo")
So(err, ShouldBeNil)
<-lpe.done
Convey("Start the plugins", func() {
lp, err := c.pluginManager.get("collector:mock:2")
So(err, ShouldBeNil)
So(lp, ShouldNotBeNil)
pool, errp := c.pluginRunner.AvailablePlugins().getOrCreatePool("collector:mock:2")
So(errp, ShouldBeNil)
So(pool, ShouldNotBeNil)
tasks := []string{
uuid.New(),
uuid.New(),
uuid.New(),
uuid.New(),
uuid.New(),
}
for _, id := range tasks {
pool.Subscribe(id, strategy.BoundSubscriptionType)
err = c.pluginRunner.runPlugin(lp.Details)
So(err, ShouldBeNil)
}
// The cache ttl should be 100ms which is what the plugin exposed (no system default was provided)
ttl, err := pool.CacheTTL(tasks[0])
So(err, ShouldBeNil)
So(ttl, ShouldResemble, 100*time.Millisecond)
So(pool.Strategy(), ShouldHaveSameTypeAs, strategy.NewSticky(ttl))
So(pool.Count(), ShouldEqual, len(tasks))
So(pool.SubscriptionCount(), ShouldEqual, len(tasks))
Convey("Collect metrics", func() {
taskID := tasks[rand.Intn(len(tasks))]
for i := 0; i < 10; i++ {
_, errs := c.CollectMetrics([]core.Metric{metric}, time.Now().Add(time.Second*1), taskID)
So(errs, ShouldBeEmpty)
}
Convey("Check cache stats", func() {
So(pool.AllCacheHits(), ShouldEqual, 9)
So(pool.AllCacheMisses(), ShouldEqual, 1)
})
})
})
})
Convey("Given loaded plugins that use least-recently-used routing", t, func() {
c := New()
c.Start()
c.Config.Plugins.Collector.Plugins["mock"] = newPluginConfigItem(
optAddPluginConfigItem("test", ctypes.ConfigValueBool{Value: true}),
optAddPluginConfigItem("user", ctypes.ConfigValueStr{Value: "jane"}),
optAddPluginConfigItem("password", ctypes.ConfigValueStr{Value: "doe"}),
)
lpe := newListenToPluginEvent()
c.eventManager.RegisterHandler("Control.PluginLoaded", lpe)
_, e := load(c, JSONRPCPluginPath)
So(e, ShouldBeNil)
if e != nil {
t.FailNow()
}
metric, err := c.metricCatalog.Get([]string{"intel", "mock", "foo"}, 1)
metric.config = cdata.NewNode()
So(err, ShouldBeNil)
So(metric.NamespaceAsString(), ShouldResemble, "/intel/mock/foo")
So(err, ShouldBeNil)
<-lpe.done
Convey("Start the plugins", func() {
lp, err := c.pluginManager.get("collector:mock:1")
So(err, ShouldBeNil)
So(lp, ShouldNotBeNil)
pool, errp := c.pluginRunner.AvailablePlugins().getOrCreatePool("collector:mock:1")
time.Sleep(1 * time.Second)
So(errp, ShouldBeNil)
So(pool, ShouldNotBeNil)
tasks := []string{
uuid.New(),
uuid.New(),
uuid.New(),
uuid.New(),
uuid.New(),
}
for _, id := range tasks {
pool.Subscribe(id, strategy.BoundSubscriptionType)
err = c.pluginRunner.runPlugin(lp.Details)
So(err, ShouldBeNil)
}
// The cache ttl should be 100ms which is what the plugin exposed (no system default was provided)
ttl, err := pool.CacheTTL(tasks[0])
So(err, ShouldBeNil)
So(ttl, ShouldResemble, 1100*time.Millisecond)
So(pool.Strategy(), ShouldHaveSameTypeAs, strategy.NewLRU(ttl))
So(pool.Count(), ShouldEqual, len(tasks))
So(pool.SubscriptionCount(), ShouldEqual, len(tasks))
Convey("Collect metrics", func() {
taskID := tasks[rand.Intn(len(tasks))]
for i := 0; i < 10; i++ {
cr, errs := c.CollectMetrics([]core.Metric{metric}, time.Now().Add(time.Second*1), taskID)
So(errs, ShouldBeEmpty)
for i := range cr {
So(cr[i].Data(), ShouldContainSubstring, "The mock collected data!")
So(cr[i].Data(), ShouldContainSubstring, "test=true")
}
}
Convey("Check cache stats", func() {
So(pool.AllCacheHits(), ShouldEqual, 9)
So(pool.AllCacheMisses(), ShouldEqual, 1)
})
})
})
})
}
