Hey, I have about 7 million documents in my ES cluster using default configurations (5 shards, 1 replica). I set up 4 virtual machines with similar configurations on a 8 core server, each virtual machine assigned with 2 virtual cores and 4 GB memory. On each node I installed Elasticsearch. I did several search tests to measure query response time and the results are a bit confusing:
1. When using only a single node, I get the best response time. 2. When using a 2-node cluster response time increases significantly, meaning the response time gets worse (the more found documents the worse the response time) 3. For a three- or four-node cluster the response time improves again and is at the level of the single-node configuration. Any idea why the 2-node cluster has such a bad performance compared to the other configurations? cheers Herbert -- 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/4068f0a2-50dc-4f4a-9f51-6e12dced4e80%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
