How to Migrate Your Data to Milvus Seamlessly: A Comprehensive Guide

This post introduces the Milvus Migration tool, a Go-based utility designed to facilitate data migration to Milvus 2.x from Milvus 1.x, FAISS, and Elasticsearch 7.0+. It details the architecture and workflow for migrating data from these sources, including parsing original data files, transforming them into Milvus 2.x format, and using bulkInsert. For Elasticsearch migrations, it highlights fetching data via the scroll API and migrating various field types beyond dense vectors. The post outlines the tool's feature set, including supported data sources, interaction modes (CLI, API, Go module), and file format support (local, S3, OSS, GCP). It also defines key API interfaces like /start, /dump, /load, and /get_job, and provides detailed examples for migrating from Elasticsearch and Milvus 1.x, including configuration file examples and execution steps.