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memory usage optimization, rename methods, remove memchached dependency from the model

main
ghost 1 year ago
parent
cbabea595b
commit
11e02da66d
4 changed files with 149 additions and 91 deletions
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  1. 2
      crontab/cleaner.php
  2. 10
      crontab/crawler.php
  3. 150
      library/mysql.php
  4. 6
      public/top.php

2
crontab/cleaner.php
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@ -60,7 +60,7 @@ try {
foreach ($db->getCleanerQueue(CLEAN_HOST_LIMIT, time() - CLEAN_HOST_SECONDS_OFFSET) as $host) { foreach ($db->getCleanerQueue(CLEAN_HOST_LIMIT, time() - CLEAN_HOST_SECONDS_OFFSET) as $host) {
// Get robots.txt if exists // Get robots.txt if exists
$curl = new Curl($host->hostURL . '/robots.txt', CRAWL_CURLOPT_USERAGENT); $curl = new Curl($host->url . '/robots.txt', CRAWL_CURLOPT_USERAGENT);
// Update curl stats // Update curl stats
$httpRequestsTotal++; $httpRequestsTotal++;

10
crontab/crawler.php
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@ -277,7 +277,7 @@ foreach ($db->getManifestCrawlQueue(CRAWL_MANIFEST_LIMIT, time() - CRAWL_MANIFES
foreach ($db->getHostRobotsCrawlQueue(CRAWL_ROBOTS_LIMIT, time() - CRAWL_ROBOTS_SECONDS_OFFSET) as $host) { foreach ($db->getHostRobotsCrawlQueue(CRAWL_ROBOTS_LIMIT, time() - CRAWL_ROBOTS_SECONDS_OFFSET) as $host) {
// Get robots.txt // Get robots.txt
$curl = new Curl($host->hostURL . '/robots.txt', CRAWL_CURLOPT_USERAGENT); $curl = new Curl($host->url . '/robots.txt', CRAWL_CURLOPT_USERAGENT);
// Update curl stats // Update curl stats
$httpRequestsTotal++; $httpRequestsTotal++;
@ -308,13 +308,13 @@ foreach ($db->getHostRobotsCrawlQueue(CRAWL_ROBOTS_LIMIT, time() - CRAWL_ROBOTS_
// Replace relative paths // Replace relative paths
$hostSitemapPath = trim($hostSitemapPath, '/'); $hostSitemapPath = trim($hostSitemapPath, '/');
$hostSitemapPath = str_replace($host->hostURL, '', $hostSitemapPath); $hostSitemapPath = str_replace($host->url, '', $hostSitemapPath);
$hostSitemapPath = sprintf('%s%s', $host->hostURL, $hostSitemapPath); $hostSitemapPath = sprintf('%s%s', $host->url, $hostSitemapPath);
// Set default path when not exists // Set default path when not exists
} else { } else {
$hostSitemapPath = sprintf('%s/sitemap.xml', $host->hostURL); $hostSitemapPath = sprintf('%s/sitemap.xml', $host->url);
} }
// Init sitemap data // Init sitemap data
@ -329,7 +329,7 @@ foreach ($db->getHostRobotsCrawlQueue(CRAWL_ROBOTS_LIMIT, time() - CRAWL_ROBOTS_
// Add host page // Add host page
if (filter_var($link, FILTER_VALIDATE_URL) && preg_match(CRAWL_URL_REGEXP, $link) && // validate link format if (filter_var($link, FILTER_VALIDATE_URL) && preg_match(CRAWL_URL_REGEXP, $link) && // validate link format
$linkHostURL->string == $host->hostURL && // this host links only $linkHostURL->string == $host->url && // this host links only
$robots->uriAllowed($linkURI->string) && // page allowed by robots.txt rules $robots->uriAllowed($linkURI->string) && // page allowed by robots.txt rules
$host->crawlPageLimit > $db->getTotalHostPages($host->hostId) && // pages quantity not reached host limit $host->crawlPageLimit > $db->getTotalHostPages($host->hostId) && // pages quantity not reached host limit
!$db->findHostPageByCRC32URI($host->hostId, crc32($linkURI->string))) { // page does not exists !$db->findHostPageByCRC32URI($host->hostId, crc32($linkURI->string))) { // page does not exists

150
library/mysql.php
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@ -3,18 +3,13 @@
class MySQL { class MySQL {
private PDO $_db; private PDO $_db;
private Memcached $_memcached;
public function __construct(string $host, int $port, string $database, string $username, string $password, Memcached $memcached = null) { public function __construct(string $host, int $port, string $database, string $username, string $password) {
$this->_db = new PDO('mysql:dbname=' . $database . ';host=' . $host . ';port=' . $port . ';charset=utf8', $username, $password, [PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8']); $this->_db = new PDO('mysql:dbname=' . $database . ';host=' . $host . ';port=' . $port . ';charset=utf8', $username, $password, [PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8']);
$this->_db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $this->_db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$this->_db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ); $this->_db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);
$this->_db->setAttribute(PDO::ATTR_TIMEOUT, 600); $this->_db->setAttribute(PDO::ATTR_TIMEOUT, 600);
if ($memcached) {
$this->_memcached = $memcached;
}
} }
// System // System
@ -96,7 +91,22 @@ class MySQL {
return $query->fetchAll(); return $query->fetchAll();
} }
public function getHost(int $crc32url) { public function getHost(int $hostId) {
$query = $this->_db->prepare("SELECT *,
IF (`port` IS NOT NULL,
CONCAT(`scheme`, '://', `name`, ':', `port`),
CONCAT(`scheme`, '://', `name`)
) AS `url`
FROM `host` WHERE `hostId` = ? LIMIT 1");
$query->execute([$hostId]);
return $query->fetch();
}
public function getHostByCRC32URL(int $crc32url) {
$query = $this->_db->prepare('SELECT * FROM `host` WHERE `crc32url` = ? LIMIT 1'); $query = $this->_db->prepare('SELECT * FROM `host` WHERE `crc32url` = ? LIMIT 1');
@ -204,17 +214,26 @@ class MySQL {
public function getTopHostPages(int $limit = 100) { public function getTopHostPages(int $limit = 100) {
if ($this->_memcached) { // Get ID (to prevent memory over usage)
$query = $this->_db->query("SELECT `hostPage`.`hostPageId`
if ($result = $this->_memcached->get(sprintf('MySQL.getTopHostPages.%s', $limit))) { FROM `hostPage`
JOIN `host` ON (`hostPage`.`hostId` = `host`.`hostId`)
return $result; WHERE `host`.`status` = '1'
} AND `hostPage`.`httpCode` = 200
} AND `hostPage`.`rank` > 0
AND `hostPage`.`timeBanned` IS NULL
AND `hostPage`.`mime` IS NOT NULL
ORDER BY `rank` DESC
LIMIT " . (int) $limit);
$query = $this->_db->query(" SELECT // Get required page details
foreach ($query->fetchAll() as $top) {
`hostPage`.`hostId`, $query = $this->_db->prepare("SELECT `hostPage`.`hostId`,
`hostPage`.`hostPageId`, `hostPage`.`hostPageId`,
`hostPage`.`uri`, `hostPage`.`uri`,
`hostPage`.`rank`, `hostPage`.`rank`,
@ -236,21 +255,16 @@ class MySQL {
FROM `hostPage` FROM `hostPage`
JOIN `host` ON (`hostPage`.`hostId` = `host`.`hostId`) JOIN `host` ON (`hostPage`.`hostId` = `host`.`hostId`)
WHERE `host`.`status` = '1' WHERE `hostPage`.`hostPageId` = ?
AND `hostPage`.`httpCode` = 200
AND `hostPage`.`rank` > 0
AND `hostPage`.`timeBanned` IS NULL
AND `hostPage`.`mime` IS NOT NULL
ORDER BY `rank` DESC
LIMIT " . (int) $limit); LIMIT 1");
$result = $query->fetchAll(); $query->execute([$top->hostPageId]);
if ($this->_memcached) { if ($query->rowCount()) {
$this->_memcached->set(sprintf('MySQL.getTopHostPages.%s', $limit), $result, time() + 3600); $result[] = $query->fetch();
}
} }
return $result; return $result;
@ -582,10 +596,12 @@ class MySQL {
// Cleaner tools // Cleaner tools
public function getCleanerQueue(int $limit, int $timeFrom) { public function getCleanerQueue(int $limit, int $timeFrom) {
$query = $this->_db->prepare("SELECT *, IF (`port` IS NOT NULL, $result = [];
CONCAT(`scheme`, '://', `name`, ':', `port`),
CONCAT(`scheme`, '://', `name`) // Get ID (to prevent memory over usage)
) AS `hostURL` FROM `host` $query = $this->_db->prepare("SELECT `hostId`
FROM `host`
WHERE (`timeUpdated` IS NULL OR `timeUpdated` < ? ) AND `host`.`status` <> ? WHERE (`timeUpdated` IS NULL OR `timeUpdated` < ? ) AND `host`.`status` <> ?
@ -595,7 +611,13 @@ class MySQL {
$query->execute([$timeFrom, 0]); $query->execute([$timeFrom, 0]);
return $query->fetchAll(); // Get required page details
foreach ($query->fetchAll() as $host) {
$result[] = $this->getHost($host->hostId);
}
return (object) $result;
} }
public function getHostPagesBanned() { public function getHostPagesBanned() {
@ -702,7 +724,13 @@ class MySQL {
FROM `hostPage` FROM `hostPage`
JOIN `host` ON (`host`.`hostId` = `hostPage`.`hostId`) JOIN `host` ON (`host`.`hostId` = `hostPage`.`hostId`)
WHERE (`hostPage`.`timeUpdated` IS NULL OR `hostPage`.`timeUpdated` < ? OR (`hostPage`.`uri` = '/' AND `hostPage`.`timeUpdated` < ?)) WHERE (
`hostPage`.`timeUpdated` IS NULL OR
`hostPage`.`timeUpdated` < ? OR (
`hostPage`.`uri` = '/' AND
`hostPage`.`timeUpdated` < ?
)
)
AND `host`.`status` <> ? AND `host`.`status` <> ?
AND `hostPage`.`timeBanned` IS NULL"); AND `hostPage`.`timeBanned` IS NULL");
@ -714,6 +742,35 @@ class MySQL {
public function getHostPageCrawlQueue(int $limit, int $hostPageTimeFrom, int $hostPageHomeTimeFrom) { public function getHostPageCrawlQueue(int $limit, int $hostPageTimeFrom, int $hostPageHomeTimeFrom) {
$result = [];
// Get ID (to prevent memory over usage)
$query = $this->_db->prepare("SELECT `hostPage`.`hostPageId`
FROM `hostPage`
JOIN `host` ON (`host`.`hostId` = `hostPage`.`hostId`)
WHERE (
`hostPage`.`timeUpdated` IS NULL OR
`hostPage`.`timeUpdated` < ?
OR (
`hostPage`.`uri` = '/' AND
`hostPage`.`timeUpdated` < ?
)
)
AND `host`.`status` <> ?
AND `hostPage`.`timeBanned` IS NULL
ORDER BY LENGTH(`hostPage`.`uri`) ASC, RAND()
LIMIT " . (int) $limit);
$query->execute([$hostPageTimeFrom, $hostPageHomeTimeFrom, 0]);
// Get required page details
foreach ($query->fetchAll() as $queue) {
$query = $this->_db->prepare("SELECT `hostPage`.`hostId`, $query = $this->_db->prepare("SELECT `hostPage`.`hostId`,
`hostPage`.`hostPageId`, `hostPage`.`hostPageId`,
`hostPage`.`uri`, `hostPage`.`uri`,
@ -739,18 +796,17 @@ class MySQL {
FROM `hostPage` FROM `hostPage`
JOIN `host` ON (`host`.`hostId` = `hostPage`.`hostId`) JOIN `host` ON (`host`.`hostId` = `hostPage`.`hostId`)
WHERE (`hostPage`.`timeUpdated` IS NULL OR `hostPage`.`timeUpdated` < ? OR (`hostPage`.`uri` = '/' AND `hostPage`.`timeUpdated` < ?)) WHERE `hostPage`.`hostPageId` = ? LIMIT 1");
AND `host`.`status` <> ?
AND `hostPage`.`timeBanned` IS NULL
ORDER BY LENGTH(`hostPage`.`uri`) ASC, RAND() $query->execute([$queue->hostPageId]);
LIMIT " . (int) $limit); if ($query->rowCount()) {
$query->execute([$hostPageTimeFrom, $hostPageHomeTimeFrom, 0]); $result[] = $query->fetch();
}
}
return $query->fetchAll(); return (object) $result;
} }
public function updateHostPageCrawlQueue(int $hostPageId, int $timeUpdated, int $httpCode, int $size) { public function updateHostPageCrawlQueue(int $hostPageId, int $timeUpdated, int $httpCode, int $size) {
@ -764,10 +820,10 @@ class MySQL {
public function getHostRobotsCrawlQueue(int $limit, int $timeFrom) { public function getHostRobotsCrawlQueue(int $limit, int $timeFrom) {
$query = $this->_db->prepare("SELECT *, IF (`port` IS NOT NULL, $result = [];
CONCAT(`scheme`, '://', `name`, ':', `port`),
CONCAT(`scheme`, '://', `name`) // Get ID (to prevent memory over usage)
) AS `hostURL` $query = $this->_db->prepare("SELECT `hostId`
FROM `host` FROM `host`
@ -779,7 +835,13 @@ class MySQL {
$query->execute([$timeFrom, 0]); $query->execute([$timeFrom, 0]);
return $query->fetchAll(); // Get required page details
foreach ($query->fetchAll() as $host) {
$result[] = $this->getHost($host->hostId);
}
return (object) $result;
} }
public function getManifestCrawlQueue(int $limit, int $timeFrom) { public function getManifestCrawlQueue(int $limit, int $timeFrom) {

6
public/top.php
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@ -9,12 +9,8 @@ require_once(__DIR__ . '/../library/sphinxql.php');
// Connect Sphinx search server // Connect Sphinx search server
$sphinx = new SphinxQL(SPHINX_HOST, SPHINX_PORT); $sphinx = new SphinxQL(SPHINX_HOST, SPHINX_PORT);
// Connect Memcached
$memcached = new Memcached();
$memcached->addServer(MEMCACHED_HOST, MEMCACHED_PORT);
// Connect database // Connect database
$db = new MySQL(DB_HOST, DB_PORT, DB_NAME, DB_USERNAME, DB_PASSWORD, $memcached); $db = new MySQL(DB_HOST, DB_PORT, DB_NAME, DB_USERNAME, DB_PASSWORD);
// Define page basics // Define page basics
$totalPages = $sphinx->getHostPagesTotal(); $totalPages = $sphinx->getHostPagesTotal();

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