wu-sheng commented on code in PR #9575:
URL: https://github.com/apache/skywalking/pull/9575#discussion_r964947369
##########
docs/en/concepts-and-designs/lal.md:
##########
@@ -240,6 +240,61 @@ metrics:
exp: http_response_time.sum(['le', 'service',
'instance']).increase('PT5M').histogram().histogram_percentile([50,70,90,99])
```
+### SlowSql
+
+SlowSql aims to convert LogData to DatabaseSlowStatement. It extracts data
from `parsed` result and save them as DatabaseSlowStatement. SlowSql will not
abort or edit logs, you can use other LAL for further processing.
+We need to set a log tag("isSlowSql") to enable it. If logs sent to OAP does
not have this tag, slowSql processing will be skipped.The example to set the
tag is following:
+``` json
+[{"tags":{"data":[{"key":"isSlowSql","value":"true"}]},"body":{"json":{"json":"{\"time\":\"20220906153959\",\"id\":\"cb92c1a5b-2691e-fb2f-457a-9c72a392d9ed\",\"service\":\"root[root]@[localhost]\",\"statement\":\"select
sleep(2);\",\"layer\":\"MYSQL\",\"query_time\":2000}"}},"service":"root[root]@[localhost]"}]
+```
+
+- `serviceName`
+
+`serviceName` extracts the service name from the `parsed` result, and set it
into the `DatabaseSlowStatement`, which will be persisted (if
+not dropped) and is used to associate with TopNDatabaseStatement and service.
+
+- `timeBucket`
+
+`timeBucket` extracts the time bucket from the `parsed` result, and set it
into the `DatabaseSlowStatement`, which will be
+persisted (if not dropped) and is used to associate with TopNDatabaseStatement.
+
+- `statement`
+
+`statement` extracts the time bucket from the `parsed` result, and set it into
the `DatabaseSlowStatement`, which will be
+persisted (if not dropped) and is used to associate with TopNDatabaseStatement.
+
+- `latency`
+
+`latency` extracts the latency from the `parsed` result, and set it into the
`DatabaseSlowStatement`, which will be
+persisted (if not dropped) and is used to associate with TopNDatabaseStatement.
+
+- `id`
+
+`id` extracts the id from the `parsed` result, and set it into the
`DatabaseSlowStatement`, which will be persisted (if not
+dropped) and is used to associate with TopNDatabaseStatement.
+
+- `layer`
+
+`layer` extracts the
[layer](../../../oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/Layer.java)
from the `parsed` result, and set it into the `DatabaseSlowStatement`, which
will be persisted (if
+not dropped) and is used to associate with service.
+
+Example :
+
+```groovy
+filter {
+ json{
+ }
+ slowSql {
+ serviceName parsed.service as String
+ id parsed.id as String
+ statement parsed.statement as String
+ latency parsed.query_time as Long
+ layer parsed.layer as String
+ timeBucket parsed.time as Long
+ }
+ }
Review Comment:
<img width="545" alt="image"
src="https://user-images.githubusercontent.com/5441976/188909382-51f3235e-e8ee-4298-a3dd-a06ea8793963.png";>
I noticed this is not well formated.
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