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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,182 @@ | ||
| /* | ||
| (c) Copyright [2023-2024] Open Text. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| You may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package vclusterops | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "slices" | ||
|
|
||
| "github.com/vertica/vcluster/vclusterops/util" | ||
| ) | ||
|
|
||
| type nmaPollReplicationStatusOp struct { | ||
| opBase | ||
| TargetDatabaseOptions | ||
| hostRequestBodyMap map[string]string | ||
| sandbox string | ||
| vdb *VCoordinationDatabase | ||
| existingTransactionIDs *[]int64 | ||
| newTransactionID *int64 | ||
| } | ||
|
|
||
| func makeNMAPollReplicationStatusOp(targetDBOpt *TargetDatabaseOptions, targetUsePassword bool, | ||
| sandbox string, vdb *VCoordinationDatabase, existingTransactionIDs *[]int64, newTransactionID *int64) (nmaPollReplicationStatusOp, error) { | ||
| op := nmaPollReplicationStatusOp{} | ||
| op.name = "NMAPollReplicationStatusOp" | ||
| op.description = "Retrieve asynchronous replication transaction ID" | ||
| op.TargetDB = targetDBOpt.TargetDB | ||
| op.TargetHosts = targetDBOpt.TargetHosts | ||
| op.sandbox = sandbox | ||
| op.vdb = vdb | ||
| op.existingTransactionIDs = existingTransactionIDs | ||
| op.newTransactionID = newTransactionID | ||
|
|
||
| if targetUsePassword { | ||
| err := util.ValidateUsernameAndPassword(op.name, targetUsePassword, targetDBOpt.TargetUserName) | ||
| if err != nil { | ||
| return op, err | ||
| } | ||
| op.TargetUserName = targetDBOpt.TargetUserName | ||
| op.TargetPassword = targetDBOpt.TargetPassword | ||
| } | ||
|
|
||
| return op, nil | ||
| } | ||
|
|
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| func (op *nmaPollReplicationStatusOp) updateRequestBody(hosts []string) error { | ||
| op.hostRequestBodyMap = make(map[string]string) | ||
|
|
||
| for _, host := range hosts { | ||
| requestData := nmaReplicationStatusRequestData{} | ||
| requestData.DBName = op.TargetDB | ||
| requestData.ExcludedTransactionIDs = *op.existingTransactionIDs | ||
| requestData.GetTransactionIDsOnly = true | ||
| requestData.TransactionID = 0 | ||
| requestData.UserName = op.TargetUserName | ||
| requestData.Password = op.TargetPassword | ||
|
|
||
| dataBytes, err := json.Marshal(requestData) | ||
| if err != nil { | ||
| return fmt.Errorf("[%s] fail to marshal request data to JSON string, detail %w", op.name, err) | ||
| } | ||
|
|
||
| op.hostRequestBodyMap[host] = string(dataBytes) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func (op *nmaPollReplicationStatusOp) setupClusterHTTPRequest(hosts []string) error { | ||
| for _, host := range hosts { | ||
| httpRequest := hostHTTPRequest{} | ||
| httpRequest.Method = PostMethod | ||
| httpRequest.buildNMAEndpoint("replicate/status") | ||
| httpRequest.RequestData = op.hostRequestBodyMap[host] | ||
| op.clusterHTTPRequest.RequestCollection[host] = httpRequest | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (op *nmaPollReplicationStatusOp) prepare(execContext *opEngineExecContext) error { | ||
| err := op.updateRequestBody(op.TargetHosts) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| execContext.dispatcher.setup(op.TargetHosts) | ||
|
|
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| return op.setupClusterHTTPRequest(op.TargetHosts) | ||
| } | ||
|
|
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| func (op *nmaPollReplicationStatusOp) execute(execContext *opEngineExecContext) error { | ||
| if err := op.runExecute(execContext); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return op.processResult(execContext) | ||
| } | ||
|
|
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| func (op *nmaPollReplicationStatusOp) finalize(_ *opEngineExecContext) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (op *nmaPollReplicationStatusOp) processResult(execContext *opEngineExecContext) error { | ||
| err := pollState(op, execContext) | ||
| if err != nil { | ||
| return fmt.Errorf("error polling replication status, %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func (op *nmaPollReplicationStatusOp) getPollingTimeout() int { | ||
| return OneMinute | ||
| } | ||
|
|
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| func (op *nmaPollReplicationStatusOp) shouldStopPolling() (bool, error) { | ||
| var allErrs error | ||
|
|
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| for host, result := range op.clusterHTTPRequest.ResultCollection { | ||
| op.logResponse(host, result) | ||
|
|
||
| if result.isUnauthorizedRequest() { | ||
| return true, fmt.Errorf("[%s] wrong certificate for NMA service on host %s", | ||
| op.name, host) | ||
| } | ||
|
|
||
| if !result.isPassing() { | ||
| allErrs = errors.Join(allErrs, result.err) | ||
| continue | ||
| } | ||
|
|
||
| responseObj := []replicationStatusResponse{} | ||
| err := op.parseAndCheckResponse(host, result.content, &responseObj) | ||
| if err != nil { | ||
| return true, errors.Join(allErrs, err) | ||
| } | ||
|
|
||
| // We should only receive 1 new transaction ID. | ||
| // More than 1 means multiple replication jobs were started at the same time. | ||
| // If this happens, we can't determine which transaction ID belongs to which job. | ||
| if len(responseObj) > 1 { | ||
| return true, errors.Join(allErrs, fmt.Errorf("[%s] expects one transaction ID but retrieved %d: %+v", | ||
| op.name, len(responseObj), responseObj)) | ||
| } | ||
|
|
||
| // Stop polling if NMA responds with a single new transaction ID | ||
| if len(responseObj) == 1 { | ||
| newTransactionID := responseObj[0].TransactionID | ||
|
|
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| // The transaction ID should be new, i.e. not in the list of existing transaction IDs | ||
| if slices.Contains(*op.existingTransactionIDs, newTransactionID) { | ||
| return true, errors.Join(allErrs, fmt.Errorf("[%s] transaction ID already exists %d", | ||
| op.name, newTransactionID)) | ||
| } | ||
|
|
||
| *op.newTransactionID = newTransactionID | ||
| return true, nil | ||
| } | ||
|
|
||
| // If we're here, we've successfully received a status from one of the target hosts and there are no new transaction IDs | ||
| // Keep polling in this case | ||
| return false, nil | ||
| } | ||
|
|
||
| return true, allErrs | ||
| } |
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