We have updated ELK stack (elasticsearch, logstash, kibana) to 5.X version. After update we have noticed that the storage size of newly created indexes increased significantly.
Index before update
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
yellow open logstash-2017.01.31 jnxZq8LATZ6R94JOVEjfqA 5 1 9680414 0 7.1gb 7.1g
Index with similar number of documents after update
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
yellow open logstash-2017.02.16 ZXsln-u8Tw67l6VsxM6_MQ 5 1 9163431 0 11.3gb 11.3gb
The entire ELK stack is running on one node. Logstash index template has not been altered, index has default logstash settings
{
"logstash-2017.02.20" : {
"settings" : {
"index" : {
"creation_date_string" : "2017-02-19T23:00:14.083Z",
"refresh_interval" : "5s",
"number_of_shards" : "5",
"provided_name" : "logstash-2017.02.20",
"creation_date" : "1487545214083",
"number_of_replicas" : "1",
"uuid" : "ZGUp-KO5QJiHDQaO3ZcHgQ",
"version" : {
"created_string" : "5.2.0",
"created" : "5020099"
}
}
}
}
}
Is this normal behaviour after update ?
Regards,
Ivan Janes