python elasticsearch dsl,如何记录或打印被调用的python elasticsearch-dsl查询
I am using elasticsearch-dsl for my python application to query elastic search.
To debug what query is actually getting generated by elasticsearch-dsl library, I am unable to log or print the final query that goes to elasticsearch.
For example, like to see the request body sent to elasticsearch like this :
{
"query": {
"query_string": {
"query": "Dav*",
"fields": ["name", "short_code"],
"analyze_wildcard": true
}
}
}
Tried to bring the elasticsearch log level to TRACE. Even then, unable to see the queries that got executed.
解决方案
Take a look at my blog post here, "Slowlog settings at index level" section. Basically, you can use slowlog to print in a separate log file Elasticsearch generates, the queries. I suggest using a very low threshold to be able to see all the queries.
For example, something like this, for a specific index:
PUT /test_index/_settings
{
"index": {
"search.slowlog.level": "trace",
"search.slowlog.threshold.query.trace": "1ms"
}
}
Or
PUT /_settings
{
"index": {
"search.slowlog.level": "trace",
"search.slowlog.threshold.query.trace": "1ms"
}
}
as a cluster-wide setting, for all the indices.
And the queries will be logged in your /logs location, a file called [CLUSTER_NAME]_index_search_slowlog.log.