这篇文章将为大家详细讲解有关ElasticSearch如何修改mapping,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。
目前网上来讲,具体实现代码很少,我找了好久只找到了Python的实现。本文基于ES官方代码的PHP SDK和bulk有一个迁移实现。
<?php
require 'vendor/autoload.php';
$hosts['hosts'] = array(
"host"=>'127.0.0.1',
"port"=>'9200',
'scheme' => 'http'
);
$client = Elasticsearch\ClientBuilder::create()
->setSSLVerification(false)
->setHosts($hosts)
->build();
for ($i = 1; $i <= 10; $i++) {
if ($i != 10) {
$params['index'] = 'index-0'.$i;
}
else {
$params['index'] = 'index-'.$i;
}
echo $params["index"]."\r\n";
$params['type'] = 'raw';
$params['scroll'] = '120s';
$params["size"] = 50000;
$params["body"] = array(
"query" => array(
"match_all" => array()
)
);
$response = $client->search($params);
$step = 1;
while (isset($response['hits']['hits']) && count($response['hits']['hits']) > 0) {
echo $step++."\t";
$scroll_id = $response['_scroll_id'];
unset($response);
$response = $client->scroll(
array(
"scroll_id" => $scroll_id,
"scroll" => "120s"
)
);
if (count($response['hits']['hits']) > 0) {
$bulk = array('index'=>$params['index']."-reindex",'type'=>$params['type']);
foreach ($response["hits"]["hits"] as $key=>$val) {
$bulk['body'][]=array(
'index' => array(
'_id'=>$val['_id']
),
);
$bulk['body'][] = $val['_source'];
}
// insert reindex
$res = $client->bulk($bulk);
unset($bulk);
} else {
break;
}
}
}
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