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<?php |
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/** |
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* Pure database connectivity error taxonomy. |
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* |
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* Owns string-based classification of transport-level failures: network |
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* connection drops, query-execution timeouts, packet size limits, and |
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* deadlock / lock-wait contention. These are the error classes the retry |
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* and staged-build "resumable kill" policies act on. |
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* |
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* No side effects: callers reuse the matchers without inheriting recovery |
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* behavior. |
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*/ |
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|
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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// allow-no-test-found: covered through DatabaseInfrastructureErrorTaxonomy facade by tests/ErrorClassifierTest.php and tests/StagedBuildHostQuirksTest.php |
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class ABJ_404_Solution_DatabaseConnectivityErrorTaxonomy { |
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|
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/** @var ABJ_404_Solution_Functions */ |
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private $f; |
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|
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/** |
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* @param ABJ_404_Solution_Functions $functions |
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*/ |
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public function __construct($functions) { |
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$this->f = $functions; |
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} |
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|
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/** @param string|null $errorText @return bool */ |
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public function isTransientConnectionError(?string $errorText): bool { |
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$errorText = $errorText ?? ''; |
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if ($errorText === '') { |
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return false; |
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} |
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$lower = strtolower($errorText); |
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$transientMarkers = array( |
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'server has gone away', |
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'lost connection to mysql server during query', |
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'error while sending query packet', |
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'packets out of order', |
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'connection was killed', |
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); |
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foreach ($transientMarkers as $marker) { |
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if ($this->f->strpos($lower, $marker) !== false) { |
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return true; |
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} |
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} |
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foreach (array('2006', '2013') as $code) { |
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if ($this->f->strpos($lower, '[' . $code . ']') !== false |
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|| $this->f->strpos($lower, '(' . $code . ')') !== false |
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|| $this->f->strpos($lower, 'errno ' . $code) !== false |
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|| $this->f->strpos($lower, 'errno: ' . $code) !== false |
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|| $this->f->strpos($lower, 'error: ' . $code . ' ') !== false |
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|| $this->f->strpos($lower, 'error ' . $code . ':') !== false) { |
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return true; |
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} |
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} |
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return false; |
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} |
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|
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/** @param string $errorText @return bool */ |
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public function isQueryTimeoutError(string $errorText): bool { |
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if ($errorText === '') { |
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return false; |
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} |
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return (strpos($errorText, '3024') !== false || |
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strpos($errorText, '1969') !== false || |
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stripos($errorText, 'max_execution_time') !== false || |
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stripos($errorText, 'max_statement_time') !== false); |
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} |
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|
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/** @param string $errorText @return bool */ |
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public function isPacketTooLarge(string $errorText): bool { |
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if ($errorText === '') { |
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return false; |
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} |
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$lower = strtolower($errorText); |
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return ($this->f->strpos($lower, 'max_allowed_packet') !== false || |
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$this->f->strpos($lower, 'got a packet bigger') !== false || |
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$this->f->strpos($lower, '1153') !== false); |
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} |
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|
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/** @param string $errorText @return bool */ |
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public function isDeadlockOrLockTimeoutError(string $errorText): bool { |
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if ($errorText === '') { |
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return false; |
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} |
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$lower = strtolower($errorText); |
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return ($this->f->strpos($lower, 'deadlock found') !== false || |
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$this->f->strpos($lower, 'lock wait timeout exceeded') !== false || |
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$this->f->strpos($lower, 'error 1213') !== false || |
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$this->f->strpos($lower, 'error 1205') !== false); |
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} |
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} |
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|
