Opensearch

This article explains how to programmatically retrieve information from the KAKEN (Grants-in-Aid for Scientific Research) database. 1. Introduction KAKEN is a database for Grants-in-Aid for Scientific Research provided by the National Institute of Informatics (NII). By using the OpenSearch API, you can programmatically retrieve information about research projects. 2. Preparation: Obtaining an Application ID To use the KAKEN API, you need to obtain an Application ID from CiNii. Access the CiNii API Registration page Fill in the required information and submit your registration request After approval, you will receive an Application ID (appid) by email Note: It may take some time from registration to approval. ...

This article explains how to migrate data from Amazon Elasticsearch Service to another OpenSearch cluster. It introduces a simple and reliable migration method using the Scroll API and Bulk API. Background The need to migrate data between Elasticsearch/OpenSearch clusters can arise due to cloud service migration or cost optimization. This time, we performed a migration between the following environments. Source: Amazon Elasticsearch Service (AWS) Destination: Self-hosted OpenSearch Migration Flow Check indices on source and destination Retrieve and adjust mapping information Create indices on the destination Migrate data with Scroll API + Bulk API Verify migration results Preparation: Checking Indices First, check the index lists on both the source and destination. ...

When attempting to change the instance type from t3.small.search to t3.medium.search on a development domain in Amazon OpenSearch Service, the following message was displayed. A u t o t u n e i s n o t s u p p o r t e d i n t 2 / t 3 i n s t a n c e t y p e s . D i s a b l e a u t o t u n e o r c h a n g e y o u r i n s t a n c e t y p e . I could not find the Autotune setting in the UI, but the following page described how to do it using the CLI. ...

Overview These are notes on how to connect Django with AWS OpenSearch. The following article was helpful. https://testdriven.io/blog/django-drf-elasticsearch/ However, since the above article targets Elasticsearch, changes corresponding to OpenSearch were needed. Changes Changes for OpenSearch were needed starting from the Elasticsearch Setup section of the article. https://testdriven.io/blog/django-drf-elasticsearch/#elasticsearch-setup Specifically, the following two libraries were required. ( ( e e n n v v ) ) $ $ p p i i p p i i n n s s t t a a l l l l o d p j e a n n s g e o a - r o c p h e - n p s y e a r c h - d s l After that, by replacing django_elasticsearch_dsl with django-opensearch-dsl and elasticsearch_dsl with opensearchpy, I was able to proceed as described in the article. ...

Overview I had the opportunity to create a REST API using OpenAPI and AWS CDK, so this is a memo. The following article was very helpful. https://zenn.dev/taroman_zenn/articles/91879cec40627c The project created this time is published in the following repository. https://github.com/nakamura196/CdkOpenapi Connecting to OpenSearch The implementation is done in the following Lambda. https://github.com/nakamura196/CdkOpenapi/blob/main/lambda/search.ts Environment variables need to be passed to the Lambda, and the following was written in the ts file under lib. ...

Overview The following article was helpful for integrating Strapi with Elasticsearch. https://punits.dev/blog/integrating-elasticsearch-with-strapi/ The source code is also publicly available. https://github.com/geeky-biz/strapi-integrate-elasticsearch Here, I will note some customizations made based on the above article, including integration with Amazon OpenSearch. The customized source code is available here: https://github.com/nakamura196/strapi-integrate-opensearch Modifications The article references indexing_type, but it needed to be changed to indexing_request_type. https://github.com/nakamura196/strapi-integrate-opensearch/blob/006c533d4d7882fc9779552db31a7b0e2ada5e57/elastic/cron-search-indexing.js#L16 Additionally, to use Amazon OpenSearch instead of Elasticsearch, the following libraries need to be installed. ...

Overview I had the opportunity to connect Drupal with Amazon OpenSearch Service, so this is a personal note for future reference. The following article was helpful. https://www.acquia.com/jp/blog/intergration-with-drupal-and-elasticsearch Module Installation In addition to drupal/search_api and drupal/elasticsearch_connector, it was necessary to install nodespark/des-connector. (There may be room for improvement in how version specifications are handled.) c c c o o o m m m p p p o o o s s s e e e r r r r r r e e e q q q u u u i i i r r r e e e " ' " n d d o r r d u u e p p s a a p l l a / / r s e k e l / a a d r s e c t s h i - _ c c a s o p e n i a n : r e ^ c c 1 h t . _ o 2 c r 9 o : ' n ^ n 7 e . c x t - o d r e v ^ " 7 . 0 @ a l p h a " Then, enable them with the following. ...