operator

package
v1.0.9 Latest Latest
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 Go to latest Published: Aug 3, 2020 License: Apache-2.0 Imports: 30 Imported by: 3

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	CheckNameGeneral     = "general" // errors that don't fit any specific check
	CheckNameNTP         = "ntp"
	CheckNameOSVer       = "os-version"
	CheckNameSwap        = "swap"
	CheckNameSysctl      = "sysctl"
	CheckNameCPUThreads  = "cpu-cores"
	CheckNameCPUGovernor = "cpu-governor"
	CheckNameDisks       = "disk"
	CheckNamePortListen  = "listening-port"
	CheckNameEpoll       = "epoll-exclusive"
	CheckNameMem         = "memory"
	CheckNameLimits      = "limits"
	CheckNameSysService  = "service"
	CheckNameSELinux     = "selinux"
	CheckNameCommand     = "command"
	CheckNameFio         = "fio"
)

Names of checks

Functions

func AsyncNodes 

func AsyncNodes(spec *spec.Specification, nodes []string, async bool) []string

AsyncNodes return all nodes async destroy or not.

func DeleteGlobalDirs 

func DeleteGlobalDirs(getter ExecutorGetter, host string, options *spec.GlobalOptions) error

DeleteGlobalDirs deletes all global directories if they are empty

func Destroy 

func Destroy(
	getter ExecutorGetter,
	cluster spec.Topology,
	options Options,
) error

Destroy the cluster.

func DestroyClusterTombstone 

func DestroyClusterTombstone(
	getter ExecutorGetter,
	cluster *spec.Specification,
	returNodesOnly bool,
	options Options,
) (nodes []string, err error)

DestroyClusterTombstone remove the tombstone node in spec and destroy them. If returNodesOnly is true, it will only return the node id that can be destroy.

func DestroyComponent 

func DestroyComponent(getter ExecutorGetter, instances []spec.Instance, cls spec.Topology, options Options) error

DestroyComponent destroy the instances.

func DestroyMonitored 

func DestroyMonitored(getter ExecutorGetter, inst spec.Instance, options *spec.MonitoredOptions, timeout int64) error

DestroyMonitored destroy the monitored service.

func DestroyTombstone 

func DestroyTombstone(
	getter ExecutorGetter,
	cluster *spec.Specification,
	returNodesOnly bool,
	options Options,
) (nodes []string, err error)

DestroyTombstone remove the tombstone node in spec and destroy them. If returNodesOnly is true, it will only return the node id that can be destroy.

func Download 

func Download(component, nodeOS, arch string, version string) error

Download the specific version of a component from the repository, there is nothing to do if the specified version exists.

func FilterComponent 

func FilterComponent(comps []spec.Component, components set.StringSet) (res []spec.Component)

FilterComponent filter components by set

func FilterInstance 

func FilterInstance(instances []spec.Instance, nodes set.StringSet) (res []spec.Instance)

FilterInstance filter instances by set

func GetNodeInfo 

func GetNodeInfo(
	ctx context.Context,
	getter ExecutorGetter,
	topo spec.Topology,
) (nodes []*telemetry.NodeInfo, err error)

GetNodeInfo the node info in topology.

func GetServiceStatus 

func GetServiceStatus(e executor.Executor, name string) (active string, err error)

GetServiceStatus return the Acitive line of status.

[tidb@ip-172-16-5-70 deploy]$ sudo systemctl status drainer-8249.service ● drainer-8249.service - drainer-8249 service 

  Loaded: loaded (/etc/systemd/system/drainer-8249.service; disabled; vendor preset: disabled)
  Active: active (running) since Mon 2020-03-09 13:56:19 CST; 1 weeks 3 days ago
Main PID: 36718 (drainer)
  CGroup: /system.slice/drainer-8249.service
          └─36718 bin/drainer --addr=172.16.5.70:8249 --pd-urls=http://172.16.5.70:2379 --data-dir=/data1/deploy/data.drainer --log-file=/data1/deploy/log/drainer.log --config=conf/drainer.toml --initial-commit-ts=408375872006389761

Mar 09 13:56:19 ip-172-16-5-70 systemd[1]: Started drainer-8249 service.

func NeedCheckTomebsome 

func NeedCheckTomebsome(spec *spec.Specification) bool

NeedCheckTomebsome return true if we need to check and destroy some node.

func PrintClusterStatus 

func PrintClusterStatus(getter ExecutorGetter, cluster *spec.Specification) (health bool)

PrintClusterStatus print cluster status into the io.Writer.

func Restart 

func Restart(
	getter ExecutorGetter,
	cluster spec.Topology,
	options Options,
) error

Restart the cluster.

func RestartComponent 

func RestartComponent(getter ExecutorGetter, instances []spec.Instance, timeout int64) error

RestartComponent restarts the component.

func ScaleIn 

func ScaleIn(
	getter ExecutorGetter,
	cluster *spec.Specification,
	options Options,
) error

ScaleIn scales in the cluster

func ScaleInCluster 

func ScaleInCluster(
	getter ExecutorGetter,
	cluster *spec.Specification,
	options Options,
) error

ScaleInCluster scales in the cluster

func ScaleInDMCluster 

func ScaleInDMCluster(
	getter ExecutorGetter,
	spec *dm.Topology,
	options Options,
) error

ScaleInDMCluster scale in dm cluster.

func Start 

func Start(
	getter ExecutorGetter,
	cluster spec.Topology,
	options Options,
) error

Start the cluster.

func StartComponent 

func StartComponent(getter ExecutorGetter, instances []spec.Instance, options Options) error

StartComponent start the instances.

func StartMonitored 

func StartMonitored(getter ExecutorGetter, instance spec.Instance, options *spec.MonitoredOptions, timeout int64) error

StartMonitored start BlackboxExporter and NodeExporter

func Stop 

func Stop(
	getter ExecutorGetter,
	cluster spec.Topology,
	options Options,
) error

Stop the cluster.

func StopComponent 

func StopComponent(getter ExecutorGetter, instances []spec.Instance, timeout int64) error

StopComponent stop the instances.

func StopMonitored 

func StopMonitored(getter ExecutorGetter, instance spec.Instance, options *spec.MonitoredOptions, timeout int64) error

StopMonitored stop BlackboxExporter and NodeExporter

func Upgrade 

func Upgrade(
	getter ExecutorGetter,
	topo spec.Topology,
	options Options,
) error

Upgrade the cluster.

Types

type CheckOptions 

type CheckOptions struct {
	// checks that are disabled by default
	EnableCPU  bool
	EnableMem  bool
	EnableDisk bool
}

CheckOptions control the list of checks to be performed

type CheckResult 

type CheckResult struct {
	Name string // Name of the check
	Err  error  // An embedded error
	Warn bool   // The check didn't pass, but not a big problem
	Msg  string // A message or description
}

CheckResult is the result of a check

func CheckFIOResult 

func CheckFIOResult(rr, rw, lat []byte) []*CheckResult

CheckFIOResult parses and checks the result of fio test

func CheckKernelParameters 

func CheckKernelParameters(opt *CheckOptions, p []byte) []*CheckResult

CheckKernelParameters checks kernel parameter values

func CheckListeningPort 

func CheckListeningPort(opt *CheckOptions, host string, topo *spec.Specification, rawData []byte) []*CheckResult

CheckListeningPort checks if the ports are already binded by some process on host

func CheckPartitions 

func CheckPartitions(opt *CheckOptions, host string, topo *spec.Specification, rawData []byte) []*CheckResult

CheckPartitions checks partition info of data directories

func CheckSELinux 

func CheckSELinux(e executor.Executor) *CheckResult

CheckSELinux checks if SELinux is enabled on the host

func CheckServices 

func CheckServices(e executor.Executor, host, service string, disable bool) *CheckResult

CheckServices checks if a service is running on the host

func CheckSysLimits 

func CheckSysLimits(opt *CheckOptions, user string, l []byte) []*CheckResult

CheckSysLimits checks limits in /etc/security/limits.conf

func CheckSystemInfo 

func CheckSystemInfo(opt *CheckOptions, rawData []byte) []*CheckResult

CheckSystemInfo performs checks with basic system info

func (CheckResult) Error 

func (c CheckResult) Error() string

Error implements the error interface

func (CheckResult) IsWarning 

func (c CheckResult) IsWarning() bool

IsWarning checks if the result is a warning error

func (CheckResult) Passed 

func (c CheckResult) Passed() bool

Passed checks if the result is a success

func (CheckResult) String 

func (c CheckResult) String() string

String returns a readable string of the error

func (CheckResult) Unwrap 

func (c CheckResult) Unwrap() error

Unwrap implements the Wrapper interface

type ExecutorGetter 

type ExecutorGetter interface {
	Get(host string) (e executor.Executor)
}

ExecutorGetter get the executor by host.

type Operation 

type Operation byte

Operation represents the type of cluster operation 

const (
	StartOperation Operation = iota
	StopOperation
	RestartOperation
	DestroyOperation
	UpgradeOperation
	ScaleInOperation
	ScaleOutOperation
	DestroyTombstoneOperation
)

Operation represents the kind of cluster operation

func (Operation) String 

func (op Operation) String() string

type Options 

type Options struct {
	Roles             []string
	Nodes             []string
	Force             bool  // Option for upgrade subcommand
	SSHTimeout        int64 // timeout in seconds when connecting an SSH server
	OptTimeout        int64 // timeout in seconds for operations that support it, not to confuse with SSH timeout
	APITimeout        int64 // timeout in seconds for API operations that support it, like transfering store leader
	IgnoreConfigCheck bool  // should we ignore the config check result after init config
	NativeSSH         bool  // should use native ssh client or builtin easy ssh

	// Some data will be retained when destroying instances
	RetainDataRoles []string
	RetainDataNodes []string
}

Options represents the operation options

Source Files

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