136 lines
3.8 KiB
Go
136 lines
3.8 KiB
Go
/**
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Collection of monitors to create synchronicity
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package realis
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import (
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"fmt"
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"time"
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"github.com/pkg/errors"
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"github.com/rdelval/gorealis/gen-go/apache/aurora"
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"github.com/rdelval/gorealis/response"
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)
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type Monitor struct {
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Client Realis
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}
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// Polls the scheduler every certain amount of time to see if the update has succeeded
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func (m *Monitor) JobUpdate(updateKey aurora.JobUpdateKey, interval int, timeout int) (bool, error) {
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updateQ := aurora.JobUpdateQuery{
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Key: &updateKey,
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Limit: 1,
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}
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duration := defaultBackoff.Duration
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var err error
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var respDetail *aurora.Response
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for i := 0; i*interval <= timeout; i++ {
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for i := 0; i < defaultBackoff.Steps; i++ {
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if i != 0 {
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adjusted := duration
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if defaultBackoff.Jitter > 0.0 {
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adjusted = Jitter(duration, defaultBackoff.Jitter)
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}
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fmt.Println(" sleeping for: ", adjusted)
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time.Sleep(adjusted)
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duration = time.Duration(float64(duration) * defaultBackoff.Factor)
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}
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if respDetail, err = m.Client.JobUpdateDetails(updateQ); err == nil {
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break
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}
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err1 := m.Client.ReestablishConn()
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if err1 != nil {
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fmt.Println("error in ReestablishConn: ", err1)
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}
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}
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if err != nil {
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return false, err
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}
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updateDetail := response.JobUpdateDetails(respDetail)
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if len(updateDetail) == 0 {
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fmt.Println("No update found")
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return false, errors.New("No update found for " + updateKey.String())
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}
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status := updateDetail[0].Update.Summary.State.Status
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if _, ok := aurora.ACTIVE_JOB_UPDATE_STATES[status]; !ok {
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// Rolled forward is the only state in which an update has been successfully updated
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// if we encounter an inactive state and it is not at rolled forward, update failed
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if status == aurora.JobUpdateStatus_ROLLED_FORWARD {
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fmt.Println("Update succeded")
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return true, nil
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} else {
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fmt.Println("Update failed")
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return false, nil
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}
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}
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fmt.Println("Polling, update still active...")
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time.Sleep(time.Duration(interval) * time.Second)
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}
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fmt.Println("Timed out")
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return false, nil
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}
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func (m *Monitor) Instances(key *aurora.JobKey, instances int32, interval int, timeout int) (bool, error) {
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duration := defaultBackoff.Duration
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var err error
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var live map[int32]bool
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for i := 0; i*interval < timeout; i++ {
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for i := 0; i < defaultBackoff.Steps; i++ {
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if i != 0 {
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adjusted := duration
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if defaultBackoff.Jitter > 0.0 {
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adjusted = Jitter(duration, defaultBackoff.Jitter)
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}
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fmt.Println(" sleeping for: ", adjusted)
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time.Sleep(adjusted)
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fmt.Println(" sleeping done")
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duration = time.Duration(float64(duration) * defaultBackoff.Factor)
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}
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if live, err = m.Client.GetInstanceIds(key, aurora.LIVE_STATES); err == nil {
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fmt.Println(" live: ", live)
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break
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}
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err1 := m.Client.ReestablishConn()
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if err1 != nil {
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fmt.Println("error in ReestablishConn: ", err1)
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}
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}
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//live, err := m.Client.GetInstanceIds(key, aurora.LIVE_STATES)
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if err != nil {
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return false, errors.Wrap(err, "Unable to communicate with Aurora")
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}
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if len(live) == int(instances) {
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return true, nil
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}
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fmt.Println("Polling, instances running: ", len(live))
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time.Sleep(time.Duration(interval) * time.Second)
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}
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fmt.Println("Timed out")
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return false, nil
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}
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