index slowlog settings override other indices settings #42432
Description
Elasticsearch version : Tested with 6.6.1 and master
Description of the problem including expected versus actual behavior:
Slowlog settings are supposed to be per index. However, setting the slowlog settings for an index, override the respective settings in all other indices, even when these other settings have been previously configured.
Steps to reproduce:
- Create index
test_1and setindex.search.slowlog.level: warnandindex.search.slowlog.threshold.query.traceto 0.
curl -X PUT -H 'Content-Type: application/json' 'http://localhost:9200/test_1/_settings' -d '{"settings": {"index.search.slowlog.level": "warn", "index.search.slowlog.threshold.query.trace": 0}}'
Get the settings to verify it is set correctly
curl -uelastic:password -X GET 'http://localhost:9200/test_1/_settings'
should return
...
"test_1" : {
"settings" : {
"index" : {
"search" : {
"slowlog" : {
"level" : "warn",
"threshold" : {
"query" : {
"trace" : "0"
}
}
}
},
...
- Make a few searches
curl -X GET 'http://localhost:9200/test_1/_search'
and verify nothing is printed in the *.index_search_slowlog.log
- Create index
test_2and setindex.search.slowlog.level: traceandindex.search.slowlog.threshold.query.traceto 0.
curl -X PUT -H 'Content-Type: application/json' 'http://localhost:9200/test_2/_settings' -d '{"settings": {"index.search.slowlog.level": "warn", "index.search.slowlog.threshold.query.trace": 0}}'
Get the settings to verify it is set correctly
curl -uelastic:password -X GET 'http://localhost:9200/test_2/_settings'
should return
...
"test_2" : {
"settings" : {
"index" : {
"search" : {
"slowlog" : {
"level" : "trace",
"threshold" : {
"query" : {
"trace" : "0"
}
}
}
},
...
Verify also that the settings for test_1 have not been changed ( at least that's reported ):
curl -uelastic:password -X GET 'http://localhost:9200/test_1/_settings'
should still return
...
"test_1" : {
"settings" : {
"index" : {
"search" : {
"slowlog" : {
"level" : "warn",
"threshold" : {
"query" : {
"trace" : "0"
}
}
}
},
...
- Make a search in
test_1again
curl -X GET 'http://localhost:9200/test_1/_search'
Observe log lines such as
[2019-05-23T13:27:38,633][TRACE][i.s.s.query ] [node-0] [test_1][0] took[218.5micros], took_millis[0], total_hits[0 hits], types[], stats[], search_type[QUERY_THEN_FETCH], total_shards[1], source[{}], id[],
in the *.index_search_slowlog.log