I use ElasticSearch 5.6. When running snapshot, I run http://localhost:9200/_cluster/health but did not get response for more than 10 sec. I can also see when snapshot runs, machines have a lot of costs at disk/network IO. Such a delay does not happen if I do not run snapshot. I check _cluster/he…

Does creating snapshot make cluster slow?

Jianzhou_Z (Joe C) October 14, 2018, 4:40pm 5

Will old GC be the problem of the slowdown? I made another post: Does GC at snapshot affect performance? can users force GC?

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