Migrating 3 million records from Oracle to Elastic search using logstash
问题 We are trying to migrate around 3 million records from oracle to Elastic Search using Logstash. We are applying a couple of jdbc_streaming filters as a part of our logstash script, one to load connecting nested objects and another to run a hierarchical query to load data to another nested object in the index. We are able to index 0.4 million records in 24 hours. The total size occupied by .4 million records is around 300MB. We tried multiple approaches to migrate data quickly into elastic