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Merge pull request #1489 from eiffel777/change-state-cloud-resource-s…
…pecs Move to using custom Ingestor for cloud resource specifications
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140
classes/ETL/Ingestor/CloudResourceSpecsStateTransformIngestor.php
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| <?php | ||
| /* ========================================================================================== | ||
| * This class simulates a Finite State Machine to reconstruct the start and end time of a specific | ||
| * set of vcpus and memory for a cloud host. It get a set of rows that contains the vcpus and memory | ||
| * sorted by resource, host and start time of the configuration. This list is iterated over and an end | ||
| * time is set anytime a changed is detected in the number of vcpus or memory for a host. | ||
| * | ||
| * If no changes are found the current date is considered the end date of the configuration | ||
| * | ||
| * A -1 value for the vcpus and memory_mb means the host was not available on that day | ||
| * | ||
| * @author Greg Dean <[email protected]> | ||
| * @date 2021-01-27 | ||
| */ | ||
|
|
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| namespace ETL\Ingestor; | ||
|
|
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| use ETL\aOptions; | ||
| use ETL\iAction; | ||
| use ETL\aAction; | ||
| use ETL\Configuration\EtlConfiguration; | ||
| use ETL\EtlOverseerOptions; | ||
|
|
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| use Psr\Log\LoggerInterface; | ||
|
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| class CloudResourceSpecsStateTransformIngestor extends pdoIngestor implements iAction | ||
| { | ||
|
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| private $_instance_state; | ||
|
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| /** | ||
| * @see ETL\Ingestor\pdoIngestor::__construct() | ||
| */ | ||
| public function __construct(aOptions $options, EtlConfiguration $etlConfig, LoggerInterface $logger = null) | ||
| { | ||
| parent::__construct($options, $etlConfig, $logger); | ||
|
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| $this->_end_time = $etlConfig->getVariableStore()->endDate ? date('Y-m-d H:i:s', strtotime($etlConfig->getVariableStore()->endDate)) : null; | ||
|
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| $this->resetInstance(); | ||
| } | ||
|
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| private function initInstance($srcRecord) | ||
| { | ||
| // Since we only get information for when a configuration changes we assume a configuration has an end date | ||
| // of today unless we have a row that tells us otherwise | ||
| $default_end_time = isset($this->_end_time) ? $this->_end_time : date('Y-m-d') . ' 23:59:59'; | ||
|
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| $this->_instance_state = array( | ||
| 'resource_id' => $srcRecord['resource_id'], | ||
| 'hostname' => $srcRecord['hostname'], | ||
| 'vcpus' => $srcRecord['vcpus'], | ||
| 'memory_mb' => $srcRecord['memory_mb'], | ||
| 'start_date_ts' => strtotime($srcRecord['fact_date'] . " 00:00:00"), | ||
| 'end_date_ts' => strtotime($default_end_time), | ||
| 'start_day_id' => date('Y', strtotime($srcRecord['fact_date'])) * 100000 + date('z', strtotime($srcRecord['fact_date'])) + 1, | ||
| 'end_day_id' => date('Y', strtotime($default_end_time)) * 100000 + date('z', strtotime($default_end_time)) + 1 | ||
| ); | ||
| } | ||
|
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| private function resetInstance() | ||
| { | ||
| $this->_instance_state = null; | ||
| } | ||
|
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| private function updateInstance($srcRecord) | ||
| { | ||
| // The -1 is to make sure we use the last second of the previous day | ||
| $end_date_timestamp = strtotime($srcRecord['fact_date'] . " 00:00:00") - 1; | ||
| $this->_instance_state['end_date_ts'] = $end_date_timestamp; | ||
|
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| // date(z) is zero indexed so +1 is needed to get the correct day of the year | ||
| $this->_instance_state['end_day_id'] = date('Y', $end_date_timestamp) * 100000 + date('z', $end_date_timestamp) + 1; | ||
| } | ||
|
|
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| /** | ||
| * @see ETL\Ingestor\pdoIngestor::transform() | ||
| */ | ||
| protected function transform(array $srcRecord, &$orderId) | ||
| { | ||
| // We want to just flush when we hit the dummy row | ||
| if ($srcRecord['fact_date'] === 0) { | ||
| if (isset($this->_instance_state)) { | ||
| return array($this->_instance_state); | ||
| } else { | ||
| return array(); | ||
| } | ||
| } | ||
|
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| if ($this->_instance_state === null) { | ||
| if($srcRecord['vcpus'] == -1 && $srcRecord['memory_mb'] == -1) { | ||
| return array(); | ||
| } | ||
|
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| $this->initInstance($srcRecord); | ||
| } | ||
|
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| $transformedRecord = array(); | ||
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| if (($this->_instance_state['hostname'] != $srcRecord['hostname']) || ($this->_instance_state['resource_id'] != $srcRecord['resource_id']) || ($this->_instance_state['vcpus'] != $srcRecord['vcpus'] || $this->_instance_state['memory_mb'] != $srcRecord['memory_mb'])) { | ||
|
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| // Only update the instance if the only thing that is different between $srcRecord and $this->_instance_state is that either the memory or vcpus changed | ||
| if (($this->_instance_state['vcpus'] != $srcRecord['vcpus'] || $this->_instance_state['memory_mb'] != $srcRecord['memory_mb']) | ||
| && ($this->_instance_state['hostname'] == $srcRecord['hostname']) && ($this->_instance_state['resource_id'] == $srcRecord['resource_id'])) { | ||
| $this->updateInstance($srcRecord); | ||
| } | ||
|
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| $transformedRecord[] = $this->_instance_state; | ||
| $this->resetInstance(); | ||
|
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| // Under most circumstances when we detect a change we want to start a new row with data from the row that has changed. This is not | ||
| // the case when the change detected is a -1 value for vcpus or memory_mb. When vcpus or memory_mb is -1 it means the host has been | ||
| // removed and we just want to end the row and not create a new row. | ||
| if($srcRecord['vcpus'] != -1 && $srcRecord['memory_mb'] != -1) { | ||
| $this->initInstance($srcRecord); | ||
| } | ||
| } | ||
|
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| return $transformedRecord; | ||
| } | ||
|
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| protected function getSourceQueryString() | ||
| { | ||
| $sql = parent::getSourceQueryString(); | ||
|
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| // Due to the way the Finite State Machine handles the rows in event reconstruction, the last row | ||
| // is lost. To work around this we add a dummy row filled with zeroes. | ||
| $colCount = count($this->etlSourceQuery->records); | ||
| $unionValues = array_fill(0, $colCount, 0); | ||
| $sql .= "\nUNION ALL\nSELECT " . implode(',', $unionValues) . "\nORDER BY 1 DESC, 2 ASC, 5 ASC"; | ||
|
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| return $sql; | ||
| } | ||
|
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| public function transformHelper(array $srcRecord) | ||
| { | ||
| $orderId = 0; | ||
| return $this->transform($srcRecord, $orderId); | ||
| } | ||
| } |
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35 changes: 35 additions & 0 deletions
35
configuration/etl/etl_action_defs.d/cloud_common/resource_specifications_transformer.json
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| { | ||
| "table_definition": { | ||
| "$ref": "${table_definition_dir}/cloud_common/cloud_resource_specs.json#/table_definition" | ||
| }, | ||
| "destination_record_map": { | ||
| "cloud_resource_specs": { | ||
| "resource_id": "resource_id", | ||
| "hostname": "hostname", | ||
| "vcpus": "vcpus", | ||
| "memory_mb": "memory_mb", | ||
| "start_date_ts": "start_date_ts", | ||
| "end_date_ts": "end_date_ts", | ||
| "start_day_id": "start_day_id", | ||
| "end_day_id": "end_day_id" | ||
| } | ||
| }, | ||
| "source_query": { | ||
| "records": { | ||
| "resource_id": "srs.resource_id", | ||
| "hostname": "srs.hostname", | ||
| "vcpus": "srs.vcpus", | ||
| "memory_mb": "srs.memory_mb", | ||
| "fact_date": "srs.fact_date", | ||
| "start_date_ts": -1, | ||
| "end_date_ts": -1, | ||
| "start_day_id": -1, | ||
| "end_day_id": -1 | ||
| }, | ||
| "joins": [{ | ||
| "name": "staging_resource_specifications", | ||
| "schema": "${SOURCE_SCHEMA}", | ||
| "alias": "srs" | ||
| }] | ||
| } | ||
| } |
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34 changes: 34 additions & 0 deletions
34
...s/xdmod/etlv2/configuration/input/etl_action_defs_8.0.0.d/cloud_resource_specs_state.json
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|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| { | ||
| "table_definition": { | ||
| "$ref": "../etl_tables_8.0.0.d/cloud_resource_specs.json#/table_definition" | ||
| }, | ||
| "destination_record_map": { | ||
| "cloud_resource_specs": { | ||
| "resource_id": "resource_id", | ||
| "hostname": "hostname", | ||
| "vcpus": "vcpus", | ||
| "memory_mb": "memory_mb", | ||
| "start_date_ts": "start_date_ts", | ||
| "end_date_ts": "end_date_ts", | ||
| "start_day_id": "start_day_id", | ||
| "end_day_id": "end_day_id" | ||
| } | ||
| }, | ||
| "source_query": { | ||
| "records": { | ||
| "resource_id": "srs.resource_id", | ||
| "hostname": "srs.hostname", | ||
| "vcpus": "srs.vcpus", | ||
| "memory_mb": "srs.memory_mb", | ||
| "start_date_ts": "srs.fact_date", | ||
| "end_date_ts": -1, | ||
| "start_day_id": -1, | ||
| "end_day_id": -1 | ||
| }, | ||
| "joins": [{ | ||
| "name": "staging_resource_specifications", | ||
| "schema": "${SOURCE_SCHEMA}", | ||
| "alias": "srs" | ||
| }] | ||
| } | ||
| } |
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