Hi, I'm trying to improve the indexing performances.I follow these instructions https://www.elastic.co/blog/performance-considerations-elasticsearch-indexing http://www.elastic.co/guide/en/elasticsearch/guide/master/indexing-performance.html
and created 20 different indexes by changing translog,merge,refresh...etc while "*number_of_shards:1,number_of_replica:0" part is common.* I found that the best performed index was* actually **default settings + refresh_interval:"10s"(not **refresh_interval:"-1") *in terms of doc count accuracy or load average or lesser bulk queue*.* Can anyone explain why this settings is the best? In addition,I can observe when refresh thread is active,the segments count decrease.What is exactly the refresh thread doing? thanks -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAHm3ZsrZNVJtOj__YO6enFqKDt4T1Hxi_pT94W9YQx7bNe%3Dg1g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
