更新 magento2 产品索引时，elastic search 报错 - status 429
问题：magento2.4的站点，执行 bin/magento indexer:reindex 后，elastic search 报错。内容如下：
Catalog Search index process error during indexation process:
{"error":{"root_cause":[{"type":"cluster_block_exception","reason":"index [magento2_mazia_243_product_1_v45] blocked by: [TOO_MANY_REQUESTS/12/disk usage exceeded flood-stage watermark, index has read-only-allow-delete block];"}],"type":"cluster_block_exception","reason":"index [magento2_mazia_243_product_1_v45] blocked by: [TOO_MANY_REQUESTS/12/disk usage exceeded flood-stage watermark, index has read-only-allow-delete block];"},"status":429}尝试：按网上说的，调整elastic search设置后就可以了：
curl -XPUT -H "Content-Type: application/json" http://localhost:9200/_cluster/settings -d '{ "transient": { "cluster.routing.allocation.disk.threshold_enabled": false } }'
curl -XPUT -H "Content-Type: application/json" http://localhost:9200/_all/_settings -d '{"index.blocks.read_only_allow_delete": null}'参考：https://stackoverflow.com/questions/63689953/magento-2-4-reindex-issue-with-elasticsearch