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<?php |
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namespace ClickHouseDB; |
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use ClickHouseDB\Exception\QueryException; |
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class Cluster |
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{ |
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/** |
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* @var array |
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*/ |
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private $nodes = []; |
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/** |
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* @var Client[] |
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*/ |
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private $clients = []; |
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/** |
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* @var Client |
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*/ |
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private $defaultClient; |
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/** |
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* @var array |
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*/ |
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private $badNodes = []; |
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/** |
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* @var array|bool |
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*/ |
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private $error = []; |
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/** |
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* @var array |
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*/ |
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private $resultScan = []; |
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/** |
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* @var string |
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*/ |
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private $defaultHostName; |
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/** |
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* @var int|float |
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*/ |
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private $scanTimeOut = 10; |
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/** |
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* @var array |
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*/ |
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private $tables = []; |
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/** |
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* @var array |
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*/ |
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private $hostsnames = []; |
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/** |
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* @var bool |
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*/ |
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private $isScaned = false; |
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/** |
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* A symptom of straining CH when checking a cluster request in Zookiper |
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* false - send a request to ZK, do not do SELECT * FROM system.replicas |
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* |
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* @var bool |
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*/ |
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private $softCheck = true; |
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/** |
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* @var bool |
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*/ |
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private $replicasIsOk; |
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/** |
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* Cache |
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* |
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* @var array |
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*/ |
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private $_table_size_cache = []; |
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/** |
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* Cluster constructor. |
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* |
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* @param array $connect_params |
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* @param array $settings |
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*/ |
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public function __construct($connect_params, $settings = []) |
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{ |
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$this->defaultClient = new Client($connect_params, $settings); |
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$this->defaultHostName = $this->defaultClient->getConnectHost(); |
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$this->setNodes(gethostbynamel($this->defaultHostName)); |
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} |
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/** |
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* @return Client |
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*/ |
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private function defaultClient() |
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{ |
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return $this->defaultClient; |
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} |
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/** |
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* @param bool $softCheck |
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*/ |
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public function setSoftCheck($softCheck) |
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{ |
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$this->softCheck = $softCheck; |
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} |
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/** |
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* @param float|integer $scanTimeOut |
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*/ |
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public function setScanTimeOut($scanTimeOut) |
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{ |
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$this->scanTimeOut = $scanTimeOut; |
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} |
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/** |
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* @param array $nodes |
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*/ |
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public function setNodes($nodes) |
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{ |
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$this->nodes = $nodes; |
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} |
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/** |
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* @return array |
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*/ |
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public function getNodes() |
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{ |
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return $this->nodes; |
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} |
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/** |
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* @return array |
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*/ |
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public function getBadNodes() |
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{ |
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return $this->badNodes; |
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} |
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/** |
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* Connect all nodes and scan |
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* |
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* @return $this |
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* @throws Exception\TransportException |
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*/ |
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public function connect() |
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{ |
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if (!$this->isScaned) { |
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$this->rescan(); |
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} |
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return $this; |
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} |
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/** |
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* Check the status of the cluster, the request is taken from the documentation for CH |
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* total_replicas <2 - not suitable for no replication clusters |
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* |
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* |
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* @param mixed $replicas |
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* @return bool |
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*/ |
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private function isReplicasWork($replicas) |
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{ |
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$ok = true; |
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if (!is_array($replicas)) { |
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// @todo нет массива ошибка, т/к мы работем с репликами? |
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// @todo Как быть есть в кластере НЕТ реплик ? |
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return false; |
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} |
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foreach ($replicas as $replica) { |
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if ($replica['is_readonly']) { |
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$ok = false; |
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$this->error[] = 'is_readonly : ' . json_encode($replica); |
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} |
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if ($replica['is_session_expired']) { |
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$ok = false; |
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$this->error[] = 'is_session_expired : ' . json_encode($replica); |
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} |
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if ($replica['future_parts'] > 20) { |
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$ok = false; |
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$this->error[] = 'future_parts : ' . json_encode($replica); |
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} |
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if ($replica['parts_to_check'] > 10) { |
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$ok = false; |
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$this->error[] = 'parts_to_check : ' . json_encode($replica); |
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} |
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// @todo : rewrite total_replicas=1 если кластер без реплики , нужно проверять какой класте и сколько в нем реплик |
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// if ($replica['total_replicas']<2) {$ok=false;$this->error[]='total_replicas : '.json_encode($replica);} |
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if ($this->softCheck) |
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{ |
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if (!$ok) { |
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break; |
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} |
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continue; |
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} |
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if ($replica['active_replicas'] < $replica['total_replicas']) { |
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$ok = false; |
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$this->error[] = 'active_replicas : ' . json_encode($replica); |
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} |
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if ($replica['queue_size'] > 20) { |
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$ok = false; |
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$this->error[] = 'queue_size : ' . json_encode($replica); |
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} |
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if (($replica['log_max_index'] - $replica['log_pointer']) > 10) { |
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$ok = false; |
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$this->error[] = 'log_max_index : ' . json_encode($replica); |
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} |
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if (!$ok) { |
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break; |
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} |
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} |
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return $ok; |
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} |
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private function getSelectSystemReplicas() |
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{ |
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// If you query all the columns, then the table may work slightly slow, since there are several readings from ZK per line. |
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// If you do not query the last 4 columns (log_max_index, log_pointer, total_replicas, active_replicas), then the table works quickly. if ($this->softCheck) |
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return 'SELECT |
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database,table,engine,is_leader,is_readonly, |
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is_session_expired,future_parts,parts_to_check,zookeeper_path,replica_name,replica_path,columns_version, |
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queue_size,inserts_in_queue,merges_in_queue,queue_oldest_time,inserts_oldest_time,merges_oldest_time |
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FROM system.replicas |
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'; |
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// return 'SELECT * FROM system.replicas'; |
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} |
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/** |
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* @return $this |
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* @throws Exception\TransportException |
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*/ |
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public function rescan() |
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{ |
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$this->error = []; |
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/* |
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* 1) Get the IP list |
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* 2) To each connect via IP, through activeClient replacing host on ip |
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* 3) We get information system.clusters + system.replicas from each machine, overwrite {DnsCache + timeOuts} |
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* 4) Determine the necessary machines for the cluster / replica |
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* 5) .... ? |
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*/ |
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$statementsReplicas = []; |
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$statementsClusters = []; |
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$result = []; |
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$badNodes = []; |
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$replicasIsOk = true; |
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foreach ($this->nodes as $node) { |
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$this->defaultClient()->setHost($node); |
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$statementsReplicas[$node] = $this->defaultClient()->selectAsync($this->getSelectSystemReplicas()); |
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$statementsClusters[$node] = $this->defaultClient()->selectAsync('SELECT * FROM system.clusters'); |
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// пересетапим timeout |
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$statementsReplicas[$node]->getRequest()->setDnsCache(0)->timeOut($this->scanTimeOut)->connectTimeOut($this->scanTimeOut); |
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$statementsClusters[$node]->getRequest()->setDnsCache(0)->timeOut($this->scanTimeOut)->connectTimeOut($this->scanTimeOut); |
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} |
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$this->defaultClient()->executeAsync(); |
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$tables = []; |
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foreach ($this->nodes as $node) { |
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try { |
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$r = $statementsReplicas[$node]->rows(); |
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foreach ($r as $row) { |
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$tables[$row['database']][$row['table']][$node] = $row; |
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} |
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$result['replicas'][$node] = $r; |
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}catch (\Exception $E) { |
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$result['replicas'][$node] = false; |
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$badNodes[$node] = $E->getMessage(); |
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$this->error[] = 'statementsReplicas:' . $E->getMessage(); |
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} |
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// --------------------------------------------------------------------------------------------------- |
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$hosts = []; |
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try { |
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$c = $statementsClusters[$node]->rows(); |
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$result['clusters'][$node] = $c; |
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foreach ($c as $row) { |
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$hosts[$row['host_address']][$row['port']] = $row['host_name']; |
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$result['cluster.list'][$row['cluster']][$row['host_address']] = |
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[ |
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'shard_weight' => $row['shard_weight'], |
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'replica_num' => $row['replica_num'], |
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'shard_num' => $row['shard_num'], |
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'is_local' => $row['is_local'] |
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]; |
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} |
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}catch (\Exception $E) { |
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$result['clusters'][$node] = false; |
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$this->error[] = 'clusters:' . $E->getMessage(); |
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$badNodes[$node] = $E->getMessage(); |
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} |
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$this->hostsnames = $hosts; |
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$this->tables = $tables; |
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// --------------------------------------------------------------------------------------------------- |
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// Let's check that replication goes well |
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$rIsOk = $this->isReplicasWork($result['replicas'][$node]); |
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$result['replicasIsOk'][$node] = $rIsOk; |
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if (!$rIsOk) { |
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$replicasIsOk = false; |
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} |
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// --------------------------------------------------------------------------------------------------- |
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} |
320
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321
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// badNodes = array(6) { '222.222.222.44' => string(13) "HttpCode:0 ; " , '222.222.222.11' => string(13) "HttpCode:0 ; " |
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$this->badNodes = $badNodes; |
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// Restore DNS host name on ch_client |
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$this->defaultClient()->setHost($this->defaultHostName); |
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328
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$this->isScaned = true; |
|
|
|
|
329
|
|
|
$this->replicasIsOk = $replicasIsOk; |
330
|
|
|
$this->error[] = "Bad replicasIsOk, in " . json_encode($result['replicasIsOk']); |
|
|
|
|
331
|
|
|
// ------------------------------------------------ |
332
|
|
|
// @todo : To specify on fighting falls and at different-sided configurations ... |
333
|
|
|
if (sizeof($this->badNodes)) { |
|
|
|
|
334
|
|
|
$this->error[] = 'Have bad node : ' . json_encode($this->badNodes); |
|
|
|
|
335
|
|
|
$this->replicasIsOk = false; |
336
|
|
|
} |
337
|
|
|
if (!sizeof($this->error)) { |
|
|
|
|
338
|
|
|
$this->error = false; |
339
|
|
|
} |
340
|
|
|
$this->resultScan = $result; |
341
|
|
|
// @todo : We connect to everyone in the DNS list, we need to decry that the requests were returned by all the hosts to which we connected |
342
|
|
|
return $this; |
|
|
|
|
343
|
|
|
} |
344
|
|
|
|
345
|
|
|
/** |
346
|
|
|
* @return boolean |
|
|
|
|
347
|
|
|
* @throws Exception\TransportException |
348
|
|
|
*/ |
349
|
|
|
public function isReplicasIsOk() |
|
|
|
|
350
|
|
|
{ |
351
|
|
|
return $this->connect()->replicasIsOk; |
352
|
|
|
} |
353
|
|
|
|
354
|
|
|
/** |
355
|
|
|
* @param string $node |
|
|
|
|
356
|
|
|
* @return Client |
357
|
|
|
*/ |
358
|
|
|
public function client($node) |
|
|
|
|
359
|
|
|
{ |
360
|
|
|
// Создаем клиенты под каждый IP |
361
|
|
|
if (empty($this->clients[$node])) { |
362
|
|
|
$this->clients[$node] = clone $this->defaultClient(); |
363
|
|
|
} |
364
|
|
|
|
365
|
|
|
$this->clients[$node]->setHost($node); |
366
|
|
|
|
367
|
|
|
return $this->clients[$node]; |
368
|
|
|
} |
369
|
|
|
|
370
|
|
|
/** |
371
|
|
|
* @return Client |
|
|
|
|
372
|
|
|
* @throws Exception\TransportException |
373
|
|
|
*/ |
374
|
|
|
public function clientLike($cluster, $ip_addr_like) |
|
|
|
|
375
|
|
|
{ |
376
|
|
|
$nodes_check = $this->nodes; |
|
|
|
|
377
|
|
|
$nodes = $this->getClusterNodes($cluster); |
|
|
|
|
378
|
|
|
$list_ips_need = explode(';', $ip_addr_like); |
|
|
|
|
379
|
|
|
$find = false; |
|
|
|
|
380
|
|
|
foreach ($list_ips_need as $like) |
|
|
|
|
381
|
|
|
{ |
382
|
|
|
foreach ($nodes as $node) |
|
|
|
|
383
|
|
|
{ |
|
|
|
|
384
|
|
|
|
385
|
|
|
if (stripos($node, $like) !== false) |
|
|
|
|
386
|
|
|
{ |
387
|
|
|
if (in_array($node, $nodes_check)) |
|
|
|
|
388
|
|
|
{ |
389
|
|
|
$find = $node; |
390
|
|
|
} else |
|
|
|
|
391
|
|
|
{ |
392
|
|
|
// node exists on cluster, but not check |
393
|
|
|
} |
394
|
|
|
|
|
|
|
|
395
|
|
|
} |
396
|
|
|
if ($find) { |
397
|
|
|
break; |
398
|
|
|
} |
399
|
|
|
} |
400
|
|
|
if ($find) { |
401
|
|
|
break; |
402
|
|
|
} |
403
|
|
|
} |
404
|
|
|
if (!$find) { |
|
|
|
|
405
|
|
|
$find = $nodes[0]; |
406
|
|
|
} |
407
|
|
|
return $this->client($find); |
|
|
|
|
408
|
|
|
} |
|
|
|
|
409
|
|
|
/** |
410
|
|
|
* @return Client |
411
|
|
|
*/ |
412
|
|
|
public function activeClient() |
|
|
|
|
413
|
|
|
{ |
414
|
|
|
return $this->client($this->nodes[0]); |
415
|
|
|
} |
416
|
|
|
|
417
|
|
|
/** |
418
|
|
|
* @paramstring $cluster |
|
|
|
|
419
|
|
|
* @return int |
420
|
|
|
* @throws Exception\TransportException |
421
|
|
|
*/ |
422
|
|
|
public function getClusterCountShard($cluster) |
|
|
|
|
423
|
|
|
{ |
424
|
|
|
$table = $this->getClusterInfoTable($cluster); |
425
|
|
|
$c = []; |
|
|
|
|
426
|
|
|
foreach ($table as $row) { |
|
|
|
|
427
|
|
|
$c[$row['shard_num']] = 1; |
428
|
|
|
} |
429
|
|
|
return sizeof($c); |
|
|
|
|
430
|
|
|
} |
431
|
|
|
|
432
|
|
|
/** |
433
|
|
|
* @paramstring $cluster |
|
|
|
|
434
|
|
|
* @return int |
435
|
|
|
* @throws Exception\TransportException |
436
|
|
|
*/ |
437
|
|
|
public function getClusterCountReplica($cluster) |
|
|
|
|
438
|
|
|
{ |
439
|
|
|
$table = $this->getClusterInfoTable($cluster); |
440
|
|
|
$c = []; |
|
|
|
|
441
|
|
|
foreach ($table as $row) { |
|
|
|
|
442
|
|
|
$c[$row['replica_num']] = 1; |
443
|
|
|
} |
444
|
|
|
return sizeof($c); |
|
|
|
|
445
|
|
|
} |
446
|
|
|
|
447
|
|
|
/** |
448
|
|
|
* @paramstring $cluster |
|
|
|
|
449
|
|
|
* @return mixed |
450
|
|
|
* @throws Exception\TransportException |
451
|
|
|
*/ |
452
|
|
|
public function getClusterInfoTable($cluster) |
|
|
|
|
453
|
|
|
{ |
454
|
|
|
$this->connect(); |
455
|
|
|
if (empty($this->resultScan['cluster.list'][$cluster])) { |
|
|
|
|
456
|
|
|
throw new QueryException('Cluster not find:' . $cluster); |
457
|
|
|
} |
458
|
|
|
return $this->resultScan['cluster.list'][$cluster]; |
|
|
|
|
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
/** |
462
|
|
|
* @paramstring $cluster |
|
|
|
|
463
|
|
|
* @return array |
|
|
|
|
464
|
|
|
* @throws Exception\TransportException |
465
|
|
|
*/ |
466
|
|
|
public function getClusterNodes($cluster) |
|
|
|
|
467
|
|
|
{ |
468
|
|
|
return array_keys($this->getClusterInfoTable($cluster)); |
|
|
|
|
469
|
|
|
} |
470
|
|
|
|
471
|
|
|
/** |
472
|
|
|
* @return array |
|
|
|
|
473
|
|
|
* @throws Exception\TransportException |
474
|
|
|
*/ |
475
|
|
|
public function getClusterList() |
|
|
|
|
476
|
|
|
{ |
477
|
|
|
$this->connect(); |
478
|
|
|
return array_keys($this->resultScan['cluster.list']); |
|
|
|
|
479
|
|
|
} |
480
|
|
|
|
481
|
|
|
/** |
482
|
|
|
* list all tables on all nodes |
483
|
|
|
* |
484
|
|
|
* @return array |
|
|
|
|
485
|
|
|
* @throws Exception\TransportException |
486
|
|
|
*/ |
487
|
|
|
public function getTables($resultDetail = false) |
|
|
|
|
488
|
|
|
{ |
489
|
|
|
$this->connect(); |
490
|
|
|
$list = []; |
491
|
|
|
foreach ($this->tables as $db_name=>$tables) |
|
|
|
|
492
|
|
|
{ |
493
|
|
|
foreach ($tables as $table_name=>$nodes) |
|
|
|
|
494
|
|
|
{ |
|
|
|
|
495
|
|
|
|
496
|
|
|
if ($resultDetail) |
497
|
|
|
{ |
498
|
|
|
$list[$db_name . '.' . $table_name] = $nodes; |
|
|
|
|
499
|
|
|
} else |
|
|
|
|
500
|
|
|
{ |
501
|
|
|
$list[$db_name . '.' . $table_name] = array_keys($nodes); |
|
|
|
|
502
|
|
|
} |
503
|
|
|
} |
504
|
|
|
} |
505
|
|
|
return $list; |
|
|
|
|
506
|
|
|
} |
507
|
|
|
|
508
|
|
|
/** |
509
|
|
|
* Table size on cluster |
510
|
|
|
* |
511
|
|
|
* @param string $database_table |
|
|
|
|
512
|
|
|
* @return array|null |
|
|
|
|
513
|
|
|
* |
514
|
|
|
* @throws Exception\TransportException |
515
|
|
|
*/ |
516
|
|
|
public function getSizeTable($database_table) |
|
|
|
|
517
|
|
|
{ |
518
|
|
|
$nodes = $this->getNodesByTable($database_table); |
|
|
|
|
519
|
|
|
// scan need node`s |
520
|
|
|
foreach ($nodes as $node) |
521
|
|
|
{ |
522
|
|
|
if (empty($this->_table_size_cache[$node])) |
|
|
|
|
523
|
|
|
{ |
524
|
|
|
$this->_table_size_cache[$node] = $this->client($node)->tablesSize(true); |
|
|
|
|
525
|
|
|
} |
526
|
|
|
} |
527
|
|
|
|
528
|
|
|
$sizes = []; |
529
|
|
|
foreach ($this->_table_size_cache as $node=>$rows) |
|
|
|
|
530
|
|
|
{ |
531
|
|
|
foreach ($rows as $row) |
532
|
|
|
{ |
533
|
|
|
$sizes[$row['database'] . '.' . $row['table']][$node] = $row; |
|
|
|
|
534
|
|
|
@$sizes[$row['database'] . '.' . $row['table']]['total']['sizebytes'] += $row['sizebytes']; |
535
|
|
|
|
|
|
|
|
536
|
|
|
|
537
|
|
|
|
|
|
|
|
538
|
|
|
} |
539
|
|
|
} |
540
|
|
|
|
541
|
|
|
if (empty($sizes[$database_table])) |
|
|
|
|
542
|
|
|
{ |
543
|
|
|
return null; |
544
|
|
|
} |
545
|
|
|
return $sizes[$database_table]['total']['sizebytes']; |
|
|
|
|
546
|
|
|
} |
|
|
|
|
547
|
|
|
|
548
|
|
|
|
549
|
|
|
/** |
550
|
|
|
* Truncate on all nodes |
551
|
|
|
* @deprecated |
|
|
|
|
552
|
|
|
* @param string $database_table |
553
|
|
|
* @return array |
|
|
|
|
554
|
|
|
* @throws Exception\TransportException |
555
|
|
|
*/ |
556
|
|
|
public function truncateTable($database_table, $timeOut = 2000) |
|
|
|
|
557
|
|
|
{ |
558
|
|
|
$out = []; |
|
|
|
|
559
|
|
|
list($db, $table) = explode('.', $database_table); |
|
|
|
|
560
|
|
|
$nodes = $this->getMasterNodeForTable($database_table); |
|
|
|
|
561
|
|
|
// scan need node`s |
562
|
|
|
foreach ($nodes as $node) |
|
|
|
|
563
|
|
|
{ |
564
|
|
|
$def = $this->client($node)->getTimeout(); |
565
|
|
|
$this->client($node)->database($db)->setTimeout($timeOut); |
566
|
|
|
$out[$node] = $this->client($node)->truncateTable($table); |
|
|
|
|
567
|
|
|
$this->client($node)->setTimeout($def); |
568
|
|
|
} |
569
|
|
|
return $out; |
|
|
|
|
570
|
|
|
} |
571
|
|
|
|
572
|
|
|
/** |
573
|
|
|
* is_leader node |
574
|
|
|
* |
575
|
|
|
* @param string $database_table |
|
|
|
|
576
|
|
|
* @return array |
|
|
|
|
577
|
|
|
* @throws Exception\TransportException |
578
|
|
|
*/ |
579
|
|
|
public function getMasterNodeForTable($database_table) |
|
|
|
|
580
|
|
|
{ |
581
|
|
|
$list = $this->getTables(true); |
582
|
|
|
|
583
|
|
|
if (empty($list[$database_table])) { |
|
|
|
|
584
|
|
|
return []; |
585
|
|
|
} |
586
|
|
|
|
|
|
|
|
587
|
|
|
|
588
|
|
|
$result = []; |
589
|
|
|
foreach ($list[$database_table] as $node=>$row) |
|
|
|
|
590
|
|
|
{ |
591
|
|
|
if ($row['is_leader']) { |
|
|
|
|
592
|
|
|
$result[] = $node; |
593
|
|
|
} |
594
|
|
|
} |
595
|
|
|
return $result; |
|
|
|
|
596
|
|
|
} |
|
|
|
|
597
|
|
|
/** |
598
|
|
|
* Find nodes by : db_name.table_name |
599
|
|
|
* |
600
|
|
|
* @param string $database_table |
|
|
|
|
601
|
|
|
* @return array |
|
|
|
|
602
|
|
|
* @throws Exception\TransportException |
603
|
|
|
*/ |
604
|
|
|
public function getNodesByTable($database_table) |
|
|
|
|
605
|
|
|
{ |
606
|
|
|
$list = $this->getTables(); |
607
|
|
|
if (empty($list[$database_table])) { |
|
|
|
|
608
|
|
|
throw new QueryException('Not find :' . $database_table); |
|
|
|
|
609
|
|
|
} |
610
|
|
|
return $list[$database_table]; |
|
|
|
|
611
|
|
|
} |
612
|
|
|
|
613
|
|
|
/** |
614
|
|
|
* Error string |
615
|
|
|
* |
616
|
|
|
* @return string|bool |
617
|
|
|
*/ |
618
|
|
|
public function getError() |
619
|
|
|
{ |
620
|
|
|
if (is_array($this->error)) { |
|
|
|
|
621
|
|
|
return json_encode($this->error); |
|
|
|
|
622
|
|
|
} |
623
|
|
|
return $this->error; |
|
|
|
|
624
|
|
|
} |
|
|
|
|
625
|
|
|
|
626
|
|
|
} |
|
|
|
|
627
|
|
|
|