// CheckAndRecover is the main entry point for the recovery mechanism
func CheckAndRecover(specificInstance *inst.InstanceKey, candidateInstanceKey *inst.InstanceKey, skipFilters bool, skipProcesses bool) (actionTaken bool, instance *inst.Instance, err error) {
replicationAnalysis, err := inst.GetReplicationAnalysis(true)
if err != nil {
return false, nil, log.Errore(err)
}
for _, analysisEntry := range replicationAnalysis {
if specificInstance != nil {
// We are looking for a specific instance; if this is not the one, skip!
if !specificInstance.Equals(&analysisEntry.AnalyzedInstanceKey) {
continue
}
}
if analysisEntry.IsDowntimed && specificInstance == nil {
// Only recover a downtimed server if explicitly requested
continue
}
if specificInstance != nil && skipFilters {
// force mode. Keep it synchronuous
actionTaken, instance, err = executeCheckAndRecoverFunction(analysisEntry, candidateInstanceKey, skipFilters, skipProcesses)
} else {
go executeCheckAndRecoverFunction(analysisEntry, candidateInstanceKey, skipFilters, skipProcesses)
}
}
return actionTaken, instance, err
}
// CheckAndRecover is the main entry point for the recovery mechanism
func CheckAndRecover(specificInstance *inst.InstanceKey, candidateInstanceKey *inst.InstanceKey, skipProcesses bool) (recoveryAttempted bool, promotedSlaveKey *inst.InstanceKey, err error) {
replicationAnalysis, err := inst.GetReplicationAnalysis("", true, true)
if err != nil {
return false, nil, log.Errore(err)
}
if *config.RuntimeCLIFlags.Noop {
log.Debugf("--noop provided; will not execute processes")
skipProcesses = true
}
for _, analysisEntry := range replicationAnalysis {
if specificInstance != nil {
// We are looking for a specific instance; if this is not the one, skip!
if !specificInstance.Equals(&analysisEntry.AnalyzedInstanceKey) {
continue
}
}
if analysisEntry.IsDowntimed && specificInstance == nil {
// Only recover a downtimed server if explicitly requested
continue
}
if specificInstance != nil {
// force mode. Keep it synchronuous
var topologyRecovery *TopologyRecovery
recoveryAttempted, topologyRecovery, err = executeCheckAndRecoverFunction(analysisEntry, candidateInstanceKey, true, skipProcesses)
if topologyRecovery != nil {
promotedSlaveKey = topologyRecovery.SuccessorKey
}
} else {
go executeCheckAndRecoverFunction(analysisEntry, candidateInstanceKey, false, skipProcesses)
}
}
return recoveryAttempted, promotedSlaveKey, err
}