Log management application

[sana]

i have an index of logs collected using logstash, now i want to classify the fields, for example collect all the exception in the field "exception" and store them so i can use them later in my log management java application any advice on how to do that

[warkolm (Mark Walkom)]

You can easily run an aggregation to find out what they are, but what do you mean by "collect these?"

[sana]

i meant i already have all my logs in the elastic search such as this example:

{
"_index" : "logstash-2018.02.19",
"_type" : "doc",
"_id" : "daUerWEBZrue2cT4uG7q",
"_score" : 1.0,
"_source" : {
"app" : "core",
"threadname" : "[DiscoveryClient-CacheRefreshExecutor-0]",
"exception" : "ConnectTimeout",
"@version" : "1",
"host" : "sana-OptiPlex-3020",
"@timestamp" : "2018-02-19T08:12:04.836Z",
"LEVEL" : "WARN",
"type" : "syslog",
"path" : "/home/sana/Bureau/core/dataAndTranslation-2018-01-17.0.log",
"message" : "RetryableEurekaHttpClient: Request execution failed with message: org.apache.http.conn.ConnectTimeoutException: Connect to jhipster-registry:8761 timed out",
"logtime" : "2018-01-17 17:54:37,400"
}
},

and i want throught A spring boot application to do a vertical split: send all the values that exception could have and save them in mongodb collection.
so please how to do this aggregation using spring boot and elasticsearch