wu-sheng commented on issue #2161: how to erase oversize data in ES gracefully URL: https://github.com/apache/incubator-skywalking/issues/2161#issuecomment-454292386 Deleting data in ElasticSearch is not very high performance. The suggestions are 1. Set the ElasticSearch with more nodes. 1. Set a very long TTL to make it disable, and write your own scripts/codes to implement TTL at night 1. Similar with (2), contribute the codes to use, which support deleting data at several certain time points each day if you want to contribute to us.
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