/
healer_node_test.go
1071 lines (984 loc) · 35.4 KB
/
healer_node_test.go
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// Copyright 2014 tsuru authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package healer
import (
"bytes"
"context"
"fmt"
"runtime"
"sync"
"time"
"github.com/tsuru/config"
"github.com/tsuru/tsuru/event"
"github.com/tsuru/tsuru/event/eventtest"
"github.com/tsuru/tsuru/iaas"
iaasTesting "github.com/tsuru/tsuru/iaas/testing"
"github.com/tsuru/tsuru/log"
"github.com/tsuru/tsuru/permission"
"github.com/tsuru/tsuru/provision"
"github.com/tsuru/tsuru/provision/provisiontest"
"gopkg.in/check.v1"
"gopkg.in/mgo.v2/bson"
)
func (s *S) createBasicTestHealer(c *check.C) (*NodeHealer, []provision.Node, *provisiontest.FakeProvisioner) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
s.iaasInst = iaasInst
s.iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
c.Assert(nodes[0].IaaSID(), check.Equals, "m-1")
err = healer.UpdateNodeData(nodes[0], []provision.NodeCheckResult{
{
Name: "whatever",
Successful: true,
},
})
c.Assert(err, check.IsNil)
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
return healer, nodes, p
}
func (s *S) TestHealerHealNode(c *check.C) {
healer, nodes, p := s.createBasicTestHealer(c)
var err error
created, err := healer.healNode(nodes[0])
c.Assert(err, check.IsNil)
c.Assert(created.Address, check.Equals, "http://addr2:2")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
n, err := coll.FindId("http://addr1:1").Count()
c.Assert(err, check.IsNil)
c.Assert(n, check.Equals, 0)
}
func (s *S) TestHealerHealNodeSameAddr(c *check.C) {
healer, nodes, p := s.createBasicTestHealer(c)
s.iaasInst.Addr = "addr1"
config.Set("iaas:node-port", 1)
created, err := healer.healNode(nodes[0])
c.Assert(err, check.IsNil)
c.Assert(created.Address, check.Equals, "http://addr1:1")
c.Assert(created.IaaSID, check.Equals, "m-2")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
c.Assert(nodes[0].IaaSID(), check.Equals, "m-2")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
c.Assert(machines[0].Id, check.Equals, "m-2")
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
n, err := coll.FindId("http://addr1:1").Count()
c.Assert(err, check.IsNil)
c.Assert(n, check.Equals, 0)
}
func (s *S) TestHealerHealNodeSameAddrMachineDestroyed(c *check.C) {
healer, nodes, p := s.createBasicTestHealer(c)
s.iaasInst.Addr = "addr1"
config.Set("iaas:node-port", 1)
m, err := iaas.FindMachineById(nodes[0].IaaSID())
c.Assert(err, check.IsNil)
err = m.Destroy()
c.Assert(err, check.IsNil)
created, err := healer.healNode(nodes[0])
c.Assert(err, check.IsNil)
c.Assert(created.Address, check.Equals, "http://addr1:1")
c.Assert(created.IaaSID, check.Equals, "m-2")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
c.Assert(nodes[0].IaaSID(), check.Equals, "m-2")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
c.Assert(machines[0].Id, check.Equals, "m-2")
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
n, err := coll.FindId("http://addr1:1").Count()
c.Assert(err, check.IsNil)
c.Assert(n, check.Equals, 0)
}
func (s *S) TestHealerHealNodeRebalanceError(c *check.C) {
healer, nodes, p := s.createBasicTestHealer(c)
var err error
p.PrepareFailure("RemoveNode", fmt.Errorf("remove-rebalance node error"))
created, err := healer.healNode(nodes[0])
c.Assert(err, check.IsNil)
c.Assert(created.Address, check.Equals, "http://addr2:2")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
n, err := coll.FindId("http://addr1:1").Count()
c.Assert(err, check.IsNil)
c.Assert(n, check.Equals, 0)
}
func (s *S) TestHealerHealNodeRemoveError(c *check.C) {
healer, nodes, p := s.createBasicTestHealer(c)
var err error
p.PrepareFailure("RemoveNode", fmt.Errorf("remove node error 1"))
p.PrepareFailure("RemoveNode", fmt.Errorf("remove node error 2"))
created, err := healer.healNode(nodes[0])
c.Assert(err, check.ErrorMatches, `(?s)Unable to remove node http://addr1:1 from provisioner.*remove node error.*`)
c.Assert(created.Address, check.Equals, "http://addr2:2")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 2)
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
n, err := coll.FindId("http://addr1:1").Count()
c.Assert(err, check.IsNil)
c.Assert(n, check.Equals, 0)
}
func (s *S) TestHealerHealNodeWithoutIaaS(c *check.C) {
p := provisiontest.ProvisionerInstance
err := p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{},
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Second,
})
healer.Shutdown(context.Background())
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
created, err := healer.healNode(nodes[0])
c.Assert(err, check.ErrorMatches, ".*error creating new machine.*")
c.Assert(created, check.IsNil)
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
c.Assert(nodes[0].Status(), check.Equals, "enabled")
}
func (s *S) TestHealerHealNodeCreateMachineError(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
iaasInst.Err = fmt.Errorf("my create machine error")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
fakeNode := nodes[0].(*provisiontest.FakeNode)
fakeNode.SetHealth(1, false)
c.Assert(fakeNode.FailureCount() > 0, check.Equals, true)
created, err := healer.healNode(nodes[0])
c.Assert(err, check.ErrorMatches, ".*my create machine error.*")
c.Assert(created, check.IsNil)
c.Assert(fakeNode.FailureCount(), check.Equals, 0)
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
c.Assert(nodes[0].Status(), check.Equals, "enabled")
}
func (s *S) TestHealerHealNodeWaitAndRegisterError(c *check.C) {
iaas.RegisterIaasProvider("my-healer-iaas", iaasTesting.NewHealerIaaSConstructor("addr1", nil))
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaas.RegisterIaasProvider("my-healer-iaas", iaasTesting.NewHealerIaaSConstructor("addr2", nil))
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
p.PrepareFailure("AddNode", fmt.Errorf("add node error"))
healer := newNodeHealer(nodeHealerArgs{
WaitTimeNewMachine: time.Second,
})
healer.Shutdown(context.Background())
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
created, err := healer.healNode(nodes[0])
c.Assert(err, check.ErrorMatches, ".*error registering new node: add node error.*")
c.Assert(created, check.IsNil)
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
c.Assert(nodes[0].Status(), check.Equals, "enabled")
}
func (s *S) TestHealerHealNodeDestroyError(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaasInst.DelErr = fmt.Errorf("my destroy error")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
buf := bytes.Buffer{}
log.SetLogger(log.NewWriterLogger(&buf, false))
defer log.SetLogger(nil)
created, err := healer.healNode(nodes[0])
c.Assert(err, check.IsNil)
c.Assert(created.Address, check.Equals, "http://addr2:2")
c.Assert(buf.String(), check.Matches, "(?s).*my destroy error.*")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err = iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
}
func (s *S) TestHealerHealNodeDestroyNotFound(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
machine, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: machine.Id,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
err = machine.Destroy()
c.Assert(err, check.IsNil)
buf := bytes.Buffer{}
log.SetLogger(log.NewWriterLogger(&buf, false))
defer log.SetLogger(nil)
created, err := healer.healNode(nodes[0])
c.Assert(err, check.IsNil)
c.Assert(created.Address, check.Equals, "http://addr2:2")
c.Assert(buf.String(), check.Equals, "")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err = iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
}
func (s *S) TestHealerHandleError(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
healer.started = time.Now().Add(-3 * time.Second)
conf := healerConfig()
err = conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
nodes[0].(*provisiontest.FakeNode).SetHealth(2, true)
waitTime := healer.HandleError(nodes[0].(provision.NodeHealthChecker))
c.Assert(waitTime, check.Equals, time.Duration(0))
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err = iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
c.Assert(eventtest.EventDesc{
Target: event.Target{Type: "node", Value: "http://addr1:1"},
Kind: "healer",
StartCustomData: map[string]interface{}{
"reason": "2 consecutive failures",
"node._id": "http://addr1:1",
},
EndCustomData: map[string]interface{}{
"_id": "http://addr2:2",
},
}, eventtest.HasEvent)
}
func (s *S) TestHealerHandleErrorFailureEvent(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
healer.started = time.Now().Add(-3 * time.Second)
conf := healerConfig()
err = conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
p.PrepareFailure("AddNode", fmt.Errorf("error registering new node"))
nodes[0].(*provisiontest.FakeNode).SetHealth(2, true)
waitTime := healer.HandleError(nodes[0].(provision.NodeHealthChecker))
c.Assert(waitTime, check.Equals, time.Duration(0))
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err = iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
c.Assert(eventtest.EventDesc{
Target: event.Target{Type: "node", Value: "http://addr1:1"},
Kind: "healer",
StartCustomData: map[string]interface{}{
"reason": "2 consecutive failures",
"node._id": "http://addr1:1",
},
ErrorMatches: `Can't auto-heal after 2 failures for node addr1: error registering new node: error registering new node`,
}, eventtest.HasEvent)
}
func (s *S) TestHealerHandleErrorDoesntTriggerEventIfNotNeeded(c *check.C) {
p := provisiontest.ProvisionerInstance
err := p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
DisabledTime: 20,
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
node.(*provisiontest.FakeNode).SetHealth(2, true)
waitTime := healer.HandleError(node.(provision.NodeHealthChecker))
c.Assert(waitTime, check.Equals, time.Duration(20))
c.Assert(eventtest.EventDesc{
IsEmpty: true,
}, eventtest.HasEvent)
node.(*provisiontest.FakeNode).SetHealth(0, true)
err = p.UpdateNode(provision.UpdateNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "invalid"},
})
c.Assert(err, check.IsNil)
node, err = p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
waitTime = healer.HandleError(node.(provision.NodeHealthChecker))
c.Assert(waitTime, check.Equals, time.Duration(20))
c.Assert(eventtest.EventDesc{
IsEmpty: true,
}, eventtest.HasEvent)
node.(*provisiontest.FakeNode).SetHealth(2, true)
waitTime = healer.HandleError(node.(provision.NodeHealthChecker))
c.Assert(waitTime, check.Equals, time.Duration(20))
c.Assert(eventtest.EventDesc{
IsEmpty: true,
}, eventtest.HasEvent)
}
func (s *S) TestHealerHandleErrorThrottled(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
healer.started = time.Now().Add(-3 * time.Second)
conf := healerConfig()
err = conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
for i := 0; i < 3; i++ {
var evt *event.Event
evt, err = event.NewInternal(&event.Opts{
Target: event.Target{Type: "node", Value: nodes[0].Address()},
InternalKind: "healer",
Allowed: event.Allowed(permission.PermPoolReadEvents),
})
c.Assert(err, check.IsNil)
err = evt.Done(nil)
c.Assert(err, check.IsNil)
}
err = healer.tryHealingNode(nodes[0], "myreason", nil)
c.Assert(err, check.ErrorMatches, "Error trying to insert node healing event, healing aborted: event throttled, limit for healer on any node is 3 every 5m0s")
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
}
func (s *S) TestHealerUpdateNodeData(c *check.C) {
p := provisiontest.ProvisionerInstance
nodeAddr := "http://addr1:1"
err := p.AddNode(provision.AddNodeOptions{
Address: nodeAddr,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{})
healer.Shutdown(context.Background())
checks := []provision.NodeCheckResult{
{Name: "ok1", Successful: true},
{Name: "ok2", Successful: true},
}
err = healer.UpdateNodeData(node, checks)
c.Assert(err, check.IsNil)
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
var result NodeStatusData
err = coll.FindId(nodeAddr).One(&result)
c.Assert(err, check.IsNil)
c.Assert(result.LastSuccess.IsZero(), check.Equals, false)
c.Assert(result.LastUpdate.IsZero(), check.Equals, false)
c.Assert(result.Checks[0].Time.IsZero(), check.Equals, false)
result.LastUpdate = time.Time{}
result.LastSuccess = time.Time{}
result.Checks[0].Time = time.Time{}
c.Assert(result, check.DeepEquals, NodeStatusData{
Address: nodeAddr,
Checks: []NodeChecks{{Checks: checks}},
})
}
func (s *S) TestHealerUpdateNodeDataSavesLast10Checks(c *check.C) {
p := provisiontest.ProvisionerInstance
nodeAddr := "http://addr1:1"
err := p.AddNode(provision.AddNodeOptions{
Address: nodeAddr,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{})
healer.Shutdown(context.Background())
for i := 0; i < 20; i++ {
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{
{Name: fmt.Sprintf("ok1-%d", i), Successful: true},
{Name: fmt.Sprintf("ok2-%d", i), Successful: true},
})
c.Assert(err, check.IsNil)
}
coll, err := nodeDataCollection()
c.Assert(err, check.IsNil)
defer coll.Close()
var result NodeStatusData
err = coll.FindId(nodeAddr).One(&result)
c.Assert(err, check.IsNil)
c.Assert(result.LastSuccess.IsZero(), check.Equals, false)
c.Assert(result.LastUpdate.IsZero(), check.Equals, false)
result.LastUpdate = time.Time{}
result.LastSuccess = time.Time{}
c.Assert(result.Checks, check.HasLen, 10)
expectedChecks := []NodeChecks{}
for i, check := range result.Checks {
expectedChecks = append(expectedChecks, NodeChecks{
Time: check.Time,
Checks: []provision.NodeCheckResult{
{Name: fmt.Sprintf("ok1-%d", 10+i), Successful: true},
{Name: fmt.Sprintf("ok2-%d", 10+i), Successful: true},
},
})
}
c.Assert(result, check.DeepEquals, NodeStatusData{
Address: nodeAddr,
Checks: expectedChecks,
})
}
func (s *S) TestFindNodesForHealingNoNodes(c *check.C) {
p := provisiontest.ProvisionerInstance
nodeAddr := "http://addr1:1"
err := p.AddNode(provision.AddNodeOptions{
Address: nodeAddr,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{})
healer.Shutdown(context.Background())
nodes, nodesMap, err := healer.findNodesForHealing()
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 0)
n, err := p.GetNode(nodeAddr)
c.Assert(err, check.IsNil)
c.Assert(nodesMap, check.DeepEquals, map[string]provision.Node{
n.Address(): n,
})
}
func (s *S) TestFindNodesForHealingWithConfNoEntries(c *check.C) {
conf := healerConfig()
err := conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
p := provisiontest.ProvisionerInstance
nodeAddr := "http://addr1:1"
err = p.AddNode(provision.AddNodeOptions{
Address: nodeAddr,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{})
healer.Shutdown(context.Background())
time.Sleep(1200 * time.Millisecond)
nodes, nodesMap, err := healer.findNodesForHealing()
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 0)
n, err := p.GetNode(nodeAddr)
c.Assert(err, check.IsNil)
c.Assert(nodesMap, check.DeepEquals, map[string]provision.Node{
n.Address(): n,
})
}
func (s *S) TestFindNodesForHealingLastUpdateDefault(c *check.C) {
conf := healerConfig()
err := conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
p := provisiontest.ProvisionerInstance
nodeAddr := "http://addr1:1"
err = p.AddNode(provision.AddNodeOptions{
Address: nodeAddr,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{})
healer.Shutdown(context.Background())
healer.started = time.Now().Add(-3 * time.Second)
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, nodesMap, err := healer.findNodesForHealing()
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
n, err := p.GetNode(nodeAddr)
c.Assert(err, check.IsNil)
c.Assert(nodesMap, check.DeepEquals, map[string]provision.Node{
n.Address(): n,
})
}
func (s *S) TestFindNodesForHealingLastUpdateWithRecentStarted(c *check.C) {
conf := healerConfig()
err := conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
p := provisiontest.ProvisionerInstance
nodeAddr := "http://addr1:1"
err = p.AddNode(provision.AddNodeOptions{
Address: nodeAddr,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{})
healer.Shutdown(context.Background())
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, nodesMap, err := healer.findNodesForHealing()
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 0)
n, err := p.GetNode(nodeAddr)
c.Assert(err, check.IsNil)
c.Assert(nodesMap, check.DeepEquals, map[string]provision.Node{
n.Address(): n,
})
}
func (s *S) TestCheckActiveHealing(c *check.C) {
conf := healerConfig()
err := conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
WaitTimeNewMachine: time.Minute,
})
healer.Shutdown(context.Background())
healer.started = time.Now().Add(-3 * time.Second)
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
healer.runActiveHealing()
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err = iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
c.Assert(eventtest.EventDesc{
Target: event.Target{Type: "node", Value: "http://addr1:1"},
Kind: "healer",
StartCustomData: map[string]interface{}{
"reason": bson.M{"$regex": `last update \d+\.\d*?s ago, last success \d+\.\d*?s ago`},
"lastcheck.time": bson.M{"$exists": true},
"node._id": "http://addr1:1",
},
EndCustomData: map[string]interface{}{
"_id": "http://addr2:2",
},
}, eventtest.HasEvent)
}
func (s *S) TestTryHealingNodeConcurrent(c *check.C) {
originalMaxProcs := runtime.GOMAXPROCS(10)
defer runtime.GOMAXPROCS(originalMaxProcs)
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
node, err := p.GetNode("http://addr1:1")
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.started = time.Now().Add(-3 * time.Second)
conf := healerConfig()
err = conf.SaveBase(NodeHealerConfig{Enabled: boolPtr(true), MaxUnresponsiveTime: intPtr(1)})
c.Assert(err, check.IsNil)
err = healer.UpdateNodeData(node, []provision.NodeCheckResult{})
c.Assert(err, check.IsNil)
time.Sleep(1200 * time.Millisecond)
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr1:1")
machines, err := iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr1")
wg := sync.WaitGroup{}
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
defer wg.Done()
healErr := healer.tryHealingNode(nodes[0], "something", nil)
c.Assert(healErr, check.IsNil)
}()
}
wg.Wait()
nodes, err = p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
c.Assert(nodes[0].Address(), check.Equals, "http://addr2:2")
machines, err = iaas.ListMachines()
c.Assert(err, check.IsNil)
c.Assert(machines, check.HasLen, 1)
c.Assert(machines[0].Address, check.Equals, "addr2")
c.Assert(eventtest.EventDesc{
Target: event.Target{Type: "node", Value: "http://addr1:1"},
Kind: "healer",
StartCustomData: map[string]interface{}{
"reason": "something",
"node._id": "http://addr1:1",
},
EndCustomData: map[string]interface{}{
"_id": "http://addr2:2",
},
}, eventtest.HasEvent)
}
func (s *S) TestTryHealingNodeDoubleCheck(c *check.C) {
factory, iaasInst := iaasTesting.NewHealerIaaSConstructorWithInst("addr1")
iaas.RegisterIaasProvider("my-healer-iaas", factory)
m, err := iaas.CreateMachineForIaaS("my-healer-iaas", map[string]string{})
c.Assert(err, check.IsNil)
iaasInst.Addr = "addr2"
config.Set("iaas:node-protocol", "http")
config.Set("iaas:node-port", 2)
defer config.Unset("iaas:node-protocol")
defer config.Unset("iaas:node-port")
p := provisiontest.ProvisionerInstance
err = p.AddNode(provision.AddNodeOptions{
Address: "http://addr1:1",
Metadata: map[string]string{"iaas": "my-healer-iaas"},
IaaSID: m.Id,
})
c.Assert(err, check.IsNil)
healer := newNodeHealer(nodeHealerArgs{
FailuresBeforeHealing: 1,
WaitTimeNewMachine: time.Minute,
})
healer.started = time.Now().Add(-3 * time.Second)
nodes, err := p.ListNodes(nil)
c.Assert(err, check.IsNil)
c.Assert(nodes, check.HasLen, 1)
healErr := healer.tryHealingNode(nodes[0], "something", nil)