ES Version and Shards Advice

Elastic Stack Elasticsearch
1

Hi Everyone,

Im a newbie with ES and I just have some general questions (I’m just looking for advice)

  • Current Installed ES version
    Version: 5.2.2
    lucene_version: 6.4.1
  1. Version Question
  • Im looking at upgrading ES from 5.2.2 to version 5.5.3, would anyone advise against 5.5.3 version ?
    (I do prefer to stay a few versions behind the latest release)
  1. Index Size / Shards Configuration

"Test-index" : {
"settings" : {
"index.analysis.analyzer.phonetic_analyzer.filter.3" : "stop",
"index.analysis.analyzer.phonetic_analyzer.filter.4" : "unique",
"index.number_of_shards" : "5",
"index.number_of_replicas" : "1",
"index.version.created" : "190899"
}

  • Current Index Size and Doc

“Test-index" : {
"index" : {
"primary_size" : "4.5gb",
"primary_size_in_bytes" : 4852459028,
"size" : "8.8gb",
"size_in_bytes" : 9525635793
},
"translog" : {
"operations" : 144
},
"docs" : {
"num_docs" : 1016496,
"max_doc" : 1166314,
"deleted_docs" : 149818
},

  • A maximum growth of 2Gig within the next year

Question

  • As you can see we are only using a small index, I would like to implement 1 shard and 1 replication for “Test-index” instead of 5 shards (default) what I believe is an over kill for current size and the number of docs.. When performance testing 1 shard with 1m docs the results were excellent (reindexing speed and query response time)

Any input would be great or tips

Cheers

Reid

2

I understand you don’t want to try 6.0.0 but really latest 5.x version is probably more stable, more secured, more .... than 5.5 :slight_smile:
So I’d go for latest 5.6.
Be aware that there won’t be any 5.5 update but there will probably some 5.6 updates.

1 shard for your index is probably enough indeed.

3

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