gorealis resiliency

This commit is contained in:
Kumar Krishna 2017-03-20 22:34:45 -07:00
parent d97e59b9e6
commit 3add32a585
3 changed files with 367 additions and 114 deletions

View file

@ -60,7 +60,6 @@ func main() {
var job realis.Job
var err error
var config *realis.RealisConfig
var monitor *realis.Monitor
var r realis.Realis
@ -76,7 +75,7 @@ func main() {
}
fmt.Printf("cluster: %+v \n", cluster)
r, err = realis.NewClientUsingCluster(cluster, *username, *password)
r, err = realis.NewDefaultClientUsingCluster(cluster, *username, *password)
if err != nil {
fmt.Println(err)
os.Exit(1)
@ -84,17 +83,11 @@ func main() {
monitor = &realis.Monitor{r}
} else {
//Create new configuration with default transport layer
config, err = realis.NewDefaultConfig(*url, 10000)
r, err = realis.NewDefaultClientUsingUrl(*url, *username, *password)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// Configured for vagrant
realis.AddBasicAuth(config, *username, *password)
r = realis.NewClient(config)
monitor = &realis.Monitor{r}
}
defer r.Close()
@ -122,20 +115,16 @@ func main() {
break
case "compose":
job = realis.NewJob().
//Environment("prod").
//Role("vagrant").
//Name("docker-compose").
Role("gorealis").
Environment("k2").
Name("testapp").
ExecutorName("sampleapp").
ExecutorName("dce-regular").
Environment("prod").
Role("vagrant").
Name("docker-compose").
ExecutorName("docker-compose-executor").
ExecutorData("{}").
CPU(0.25).
RAM(64).
Disk(100).
IsService(true).
InstanceCount(4).
InstanceCount(2).
AddPorts(4).
AddLabel("fileName", "sample-app/docker-compose.yml").
AddURIs(true, true, "https://github.com/mesos/docker-compose-executor/releases/download/0.1.0/sample-app.tar.gz")
@ -307,7 +296,7 @@ func main() {
case "flexUp":
fmt.Println("Flexing up job")
numOfInstances := int32(2)
numOfInstances := int32(4)
live, err := r.GetInstanceIds(job.JobKey(), aurora.ACTIVE_STATES)
if err != nil {

View file

@ -59,7 +59,7 @@ func (m *Monitor) JobUpdate(updateKey aurora.JobUpdateKey, interval int, timeout
fmt.Println("error in ReestablishConn: ", err1)
}
}
// if error remains then return (false, err).
if err != nil {
return false, err
}
@ -114,10 +114,14 @@ func (m *Monitor) Instances(key *aurora.JobKey, instances int32, interval int, t
fmt.Println(" live: ", live)
break
}
err1 := m.Client.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
if err != nil {
err1 := m.Client.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
}
//live, err := m.Client.GetInstanceIds(key, aurora.LIVE_STATES)

442
realis.go
View file

@ -63,6 +63,7 @@ type realisClient struct {
// Wrapper object to provide future flexibility
type RealisConfig struct {
username, password string
url string
cluster *Cluster
transport thrift.TTransport
protoFactory thrift.TProtocolFactory
@ -76,8 +77,8 @@ type Backoff struct {
}
var defaultBackoff = Backoff{
Steps: 10,
Duration: 5 * time.Second,
Steps: 3,
Duration: 10 * time.Second,
Factor: 5.0,
Jitter: 0.1,
}
@ -97,7 +98,7 @@ func Jitter(duration time.Duration, maxFactor float64) time.Duration {
// Create a new Client with Cluster information and other details.
func NewClientUsingCluster(cluster *Cluster, user, passwd string) (Realis, error) {
func NewDefaultClientUsingCluster(cluster *Cluster, user, passwd string) (Realis, error) {
url, err := LeaderFromZK(*cluster)
if err != nil {
@ -115,6 +116,61 @@ func NewClientUsingCluster(cluster *Cluster, user, passwd string) (Realis, error
config.username = user
config.password = passwd
config.cluster = cluster
config.url = ""
// Configured for vagrant
AddBasicAuth(config, user, passwd)
r := NewClient(config)
return r, nil
}
//This api would create default cluster object..
func NewDefaultClientUsingZKUrl(zkUrl, user, passwd string) (Realis, error) {
fmt.Println(" zkUrl: %s", zkUrl)
cluster := &Cluster{Name: "testCluster",
AuthMechanism: "UNAUTHENTICATED",
ZK: zkUrl,
SchedZKPath: "/aurora/scheduler",
AgentRunDir: "latest",
AgentRoot: "/var/lib/mesos",
}
url, err := LeaderFromZK(*cluster)
if err != nil {
fmt.Println(err)
return nil, err
}
fmt.Printf(" url: %s\n", url)
//Create new configuration with default transport layer
config, err := NewDefaultConfig("http://localhost:18000", 10000)
if err != nil {
fmt.Println(err)
return nil, err
}
config.username = user
config.password = passwd
config.cluster = cluster
config.url = ""
// Configured for vagrant
AddBasicAuth(config, user, passwd)
r := NewClient(config)
return r, nil
}
func NewDefaultClientUsingUrl(url, user, passwd string) (Realis, error) {
fmt.Printf(" url: %s\n", url)
//Create new configuration with default transport layer
config, err := NewDefaultConfig("http://localhost:18000", 10000)
if err != nil {
fmt.Println(err)
return nil, err
}
config.username = user
config.password = passwd
config.url = url
config.cluster = nil
// Configured for vagrant
AddBasicAuth(config, user, passwd)
r := NewClient(config)
@ -202,17 +258,17 @@ func (r *realisClient) ReestablishConn() error {
//close existing connection..
fmt.Println("ReestablishConn begin ....")
r.Close()
//First check cluster object for re-establish; if not available then try with scheduler url.
if r.config.cluster != nil && r.config.username != "" && r.config.password != "" {
//Re-establish using cluster object.
url, err := LeaderFromZK(*r.config.cluster)
if err != nil {
fmt.Println("LeaderFromZK error: ", err)
return err
fmt.Errorf("LeaderFromZK error: %+v\n ", err)
}
fmt.Println("ReestablishConn url: ", url)
config, err := NewDefaultConfig("http://localhost:18000", 10000)
config, err := NewDefaultConfig(url, 10000)
if err != nil {
fmt.Println(err)
return err
}
// Configured for basic-auth
AddBasicAuth(config, r.config.username, r.config.password)
@ -220,11 +276,23 @@ func (r *realisClient) ReestablishConn() error {
r.config = config
r.client = aurora.NewAuroraSchedulerManagerClientFactory(config.transport, config.protoFactory)
r.readonlyClient = aurora.NewReadOnlySchedulerClientFactory(config.transport, config.protoFactory)
} else if r.config.url != "" && r.config.username != "" && r.config.password != "" {
//Re-establish using scheduler url.
//Create new configuration with default transport layer
config, err := NewDefaultConfig(r.config.url, 10000)
if err != nil {
fmt.Println(err)
}
AddBasicAuth(config, r.config.username, r.config.password)
r.config = config
r.client = aurora.NewAuroraSchedulerManagerClientFactory(config.transport, config.protoFactory)
r.readonlyClient = aurora.NewReadOnlySchedulerClientFactory(config.transport, config.protoFactory)
} else {
fmt.Println(" Missing Data for ReestablishConn ")
fmt.Println(" r.config.cluster: ", r.config.cluster)
fmt.Println(" r.config.username: ", r.config.username)
fmt.Println(" r.config.passwd: ", r.config.password)
fmt.Println(" r.config.url: ", r.config.url)
return errors.New(" Missing Data for ReestablishConn ")
}
return nil
@ -243,7 +311,30 @@ func (r *realisClient) GetInstanceIds(key *aurora.JobKey, states map[aurora.Sche
JobName: key.Name,
Statuses: states}
resp, err := r.client.GetTasksWithoutConfigs(taskQ)
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.GetTasksWithoutConfigs(taskQ); err == nil {
fmt.Println("resp: ", resp)
break
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
if err != nil {
return nil, errors.Wrap(err, "Error querying Aurora Scheduler for active IDs")
}
@ -259,36 +350,9 @@ func (r *realisClient) GetInstanceIds(key *aurora.JobKey, states map[aurora.Sche
}
func (r *realisClient) GetJobUpdateSummaries(jobUpdateQuery *aurora.JobUpdateQuery) (*aurora.Response, error) {
resp, err := r.readonlyClient.GetJobUpdateSummaries(jobUpdateQuery)
if err != nil {
return nil, errors.Wrap(err, "Error getting job update summaries from Aurora Scheduler")
}
return response.ResponseCodeCheck(resp)
}
// Kill specific instances of a job.
func (r *realisClient) KillInstances(key *aurora.JobKey, instances ...int32) (*aurora.Response, error) {
instanceIds := make(map[int32]bool)
for _, instId := range instances {
instanceIds[instId] = true
}
resp, err := r.client.KillTasks(key, instanceIds)
if err != nil {
return nil, errors.Wrap(err, "Error sending Kill command to Aurora Scheduler")
}
return response.ResponseCodeCheck(resp)
}
// Sends a kill message to the scheduler for all active tasks under a job.
func (r *realisClient) KillJob(key *aurora.JobKey) (*aurora.Response, error) {
var instanceIds map[int32]bool
var err error
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
@ -300,17 +364,61 @@ func (r *realisClient) KillJob(key *aurora.JobKey) (*aurora.Response, error) {
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if instanceIds, err = r.GetInstanceIds(key, aurora.ACTIVE_STATES); err == nil {
fmt.Println("instanceIds: ", instanceIds)
break
if resp, err = r.readonlyClient.GetJobUpdateSummaries(jobUpdateQuery); err == nil {
fmt.Println("resp: ", resp)
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return nil, errors.Wrap(err, "Error getting job update summaries from Aurora Scheduler")
}
// Kill specific instances of a job.
func (r *realisClient) KillInstances(key *aurora.JobKey, instances ...int32) (*aurora.Response, error) {
instanceIds := make(map[int32]bool)
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for _, instId := range instances {
instanceIds[instId] = true
}
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.KillTasks(key, instanceIds); err == nil {
fmt.Println("resp: ", resp)
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return nil, errors.Wrap(err, "Error sending Kill command to Aurora Scheduler")
}
// Sends a kill message to the scheduler for all active tasks under a job.
func (r *realisClient) KillJob(key *aurora.JobKey) (*aurora.Response, error) {
var instanceIds map[int32]bool
var err error
var resp *aurora.Response
instanceIds, err = r.GetInstanceIds(key, aurora.ACTIVE_STATES)
if err != nil {
return nil, errors.Wrap(err, "Could not retrieve relevant task instance IDs")
}
@ -338,14 +446,11 @@ func (r *realisClient) KillJob(key *aurora.JobKey) (*aurora.Response, error) {
fmt.Println("error in ReestablishConn: ", err1)
}
}
if err != nil {
return nil, errors.Wrap(err, "Error sending Kill command to Aurora Scheduler")
}
}
return nil, errors.New("No tasks in the Active state")
}
// Sends a create job message to the scheduler with a specific job configuration.
@ -377,33 +482,87 @@ func (r *realisClient) CreateJob(auroraJob Job) (*aurora.Response, error) {
}
func (r *realisClient) ScheduleCronJob(auroraJob Job) (*aurora.Response, error) {
resp, err := r.client.ScheduleCronJob(auroraJob.JobConfig())
var resp *aurora.Response
var err error
if err != nil {
return nil, errors.Wrap(err, "Error sending Cron Job Schedule message to Aurora Scheduler")
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.ScheduleCronJob(auroraJob.JobConfig()); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return response.ResponseCodeCheck(resp)
return nil, errors.Wrap(err, "Error sending Cron Job Schedule message to Aurora Scheduler")
}
func (r *realisClient) DescheduleCronJob(key *aurora.JobKey) (*aurora.Response, error) {
resp, err := r.client.DescheduleCronJob(key)
if err != nil {
return nil, errors.Wrap(err, "Error sending Cron Job De-schedule message to Aurora Scheduler")
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.DescheduleCronJob(key); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return response.ResponseCodeCheck(resp)
return nil, errors.Wrap(err, "Error sending Cron Job De-schedule message to Aurora Scheduler")
}
func (r *realisClient) StartCronJob(key *aurora.JobKey) (*aurora.Response, error) {
resp, err := r.client.StartCronJob(key)
var resp *aurora.Response
var err error
if err != nil {
return nil, errors.Wrap(err, "Error sending Start Cron Job message to Aurora Scheduler")
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.StartCronJob(key); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return response.ResponseCodeCheck(resp)
return nil, errors.Wrap(err, "Error sending Start Cron Job message to Aurora Scheduler")
}
// Restarts specific instances specified
@ -413,31 +572,66 @@ func (r *realisClient) RestartInstances(key *aurora.JobKey, instances ...int32)
for _, instId := range instances {
instanceIds[instId] = true
}
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.RestartShards(key, instanceIds); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
resp, err := r.client.RestartShards(key, instanceIds)
if err != nil {
return nil, errors.Wrap(err, "Error sending Restart command to Aurora Scheduler")
}
return response.ResponseCodeCheck(resp)
return nil, errors.Wrap(err, "Error sending Restart command to Aurora Scheduler")
}
// Restarts all active tasks under a job configuration.
func (r *realisClient) RestartJob(key *aurora.JobKey) (*aurora.Response, error) {
instanceIds, err := r.GetInstanceIds(key, aurora.ACTIVE_STATES)
if err != nil {
return nil, errors.Wrap(err, "Could not retrieve relevant task instance IDs")
instanceIds, err1 := r.GetInstanceIds(key, aurora.ACTIVE_STATES)
if err1 != nil {
return nil, errors.Wrap(err1, "Could not retrieve relevant task instance IDs")
}
var resp *aurora.Response
var err error
if len(instanceIds) > 0 {
resp, err := r.client.RestartShards(key, instanceIds)
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.RestartShards(key, instanceIds); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
if err != nil {
return nil, errors.Wrap(err, "Error sending Restart command to Aurora Scheduler")
}
return nil, errors.Wrap(err, "Error sending Restart command to Aurora Scheduler")
return response.ResponseCodeCheck(resp)
} else {
return nil, errors.New("No tasks in the Active state")
}
@ -468,10 +662,7 @@ func (r *realisClient) StartJobUpdate(updateJob *UpdateJob, message string) (*au
fmt.Println("error in ReestablishConn: ", err1)
}
}
//resp, err = r.client.StartJobUpdate(updateJob.req, message)
return nil, errors.Wrap(err, "Error sending StartJobUpdate command to Aurora Scheduler")
}
// Abort Job Update on Aurora. Requires the updateId which can be obtained on the Aurora web UI.
@ -479,26 +670,57 @@ func (r *realisClient) AbortJobUpdate(
updateKey aurora.JobUpdateKey,
message string) (*aurora.Response, error) {
resp, err := r.client.AbortJobUpdate(&updateKey, message)
if err != nil {
return nil, errors.Wrap(err, "Error sending AbortJobUpdate command to Aurora Scheduler")
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.AbortJobUpdate(&updateKey, message); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return response.ResponseCodeCheck(resp)
return nil, errors.Wrap(err, "Error sending AbortJobUpdate command to Aurora Scheduler")
}
// Scale up the number of instances under a job configuration using the configuration for specific
// instance to scale up.
func (r *realisClient) AddInstances(instKey aurora.InstanceKey, count int32) (*aurora.Response, error) {
resp, err := r.client.AddInstances(&instKey, count)
if err != nil {
return nil, errors.Wrap(err, "Error sending AddInstances command to Aurora Scheduler")
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.AddInstances(&instKey, count); err == nil {
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return response.ResponseCodeCheck(resp)
return nil, errors.Wrap(err, "Error sending AddInstances command to Aurora Scheduler")
}
//Scale down the number of instances under a job configuration using the configuratipn of a specific instance
@ -525,7 +747,28 @@ func (r *realisClient) RemoveInstances(key *aurora.JobKey, count int32) (*aurora
func (r *realisClient) GetTaskStatus(query *aurora.TaskQuery) (tasks []*aurora.ScheduledTask, e error) {
resp, err := r.client.GetTasksStatus(query)
var resp *aurora.Response
var err error
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.GetTasksStatus(query); err == nil {
break
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
if err != nil {
return nil, errors.Wrap(err, "Error querying Aurora Scheduler for task status")
}
@ -598,13 +841,32 @@ func (r *realisClient) FetchTaskConfig(instKey aurora.InstanceKey) (*aurora.Task
func (r *realisClient) JobUpdateDetails(updateQuery aurora.JobUpdateQuery) (*aurora.Response, error) {
resp, err := r.client.GetJobUpdateDetails(&updateQuery)
if err != nil {
return nil, errors.Wrap(err, "Unable to get job update details")
}
var resp *aurora.Response
var err error
return response.ResponseCodeCheck(resp)
duration := defaultBackoff.Duration
for i := 0; i < defaultBackoff.Steps; i++ {
if i != 0 {
adjusted := duration
if defaultBackoff.Jitter > 0.0 {
adjusted = Jitter(duration, defaultBackoff.Jitter)
}
fmt.Println(" sleeping for: ", adjusted)
time.Sleep(adjusted)
duration = time.Duration(float64(duration) * defaultBackoff.Factor)
}
if resp, err = r.client.GetJobUpdateDetails(&updateQuery); err == nil {
fmt.Println(" resp: ", resp)
return response.ResponseCodeCheck(resp)
}
err1 := r.ReestablishConn()
if err1 != nil {
fmt.Println("error in ReestablishConn: ", err1)
}
}
return nil, errors.Wrap(err, "Unable to get job update details")
}
func (r *realisClient) RollbackJobUpdate(key aurora.JobUpdateKey, message string) (*aurora.Response, error) {
var resp *aurora.Response
var err error
@ -630,7 +892,5 @@ func (r *realisClient) RollbackJobUpdate(key aurora.JobUpdateKey, message string
}
}
//resp, err = r.client.RollbackJobUpdate(&key, message)
return nil, errors.Wrap(err, "Unable to roll back job update")
}