Magento – Catalog Search indexer process unknown error

clierrormagento2reindexwamp

I'm getting a 'One or more indexers are invalid. Make sure your Magento cron job is running.' and it seems I need to run php bin/magento indexer:reindex from the CLI.
I get the index rebuilt successfully on all indexes but one the Catalog Search
This is the Command along with the full success and error message.

 PS C:\wamp64\www\magento2> php bin/magento indexer:reindex
Design Config Grid index has been rebuilt successfully in 00:00:05
Customer Grid index has been rebuilt successfully in 00:00:07
Category Products index has been rebuilt successfully in 00:00:02
Product Categories index has been rebuilt successfully in 00:00:00
Catalog Rule Product index has been rebuilt successfully in 00:00:04
Product EAV index has been rebuilt successfully in 00:00:01
Stock index has been rebuilt successfully in 00:00:01
Inventory index has been rebuilt successfully in 00:00:00
Catalog Product Rule index has been rebuilt successfully in 00:00:00
Product Price index has been rebuilt successfully in 00:00:01
Catalog Search indexer process unknown error:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>405 Method Not Allowed</title>
</head><body>
<h1>Method Not Allowed</h1>
<p>The requested method PUT is not allowed for the URL /magento2_product_1_v1.</p>
<hr>
<address>Apache/2.4.35 (Win64) PHP/7.2.10 Server at 127.0.0.1 Port 80</address>
</body></html>

I'm using –
magento 2 v2.3.0
wamp v3.1.4
php v7.2.10
windows 10

Best Answer

Check your ElasticSearch version, it probably isn't the same selected in the Magento admin panel.

This command will help you to check the version, you might change the host.

curl http://elasticsearch:9200 

{
  "name" : "jPBGI6O",
  "cluster_name" : "docker-cluster",
  "cluster_uuid" : "eR6UbtkgSJC8zO-J6jSF2A",
  "version" : {
    "number" : "6.5.4",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "d2ef93d",
    "build_date" : "2018-12-17T21:17:40.758843Z",
    "build_snapshot" : false,
    "lucene_version" : "7.5.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

Magento 2 ElasticSearch

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