diff --git a/docs/configuration/settings.md b/docs/configuration/settings.md
index ece26a1a65c..5ab7ed90c9d 100644
--- a/docs/configuration/settings.md
+++ b/docs/configuration/settings.md
@@ -352,16 +352,16 @@ You can configure the Kyuubi properties in `$KYUUBI_HOME/conf/kyuubi-defaults.co
### Metrics
-| Key | Default | Meaning | Type | Since |
-|---------------------------------|----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|-------|
-| kyuubi.metrics.console.interval | PT5S | How often should report metrics to console | duration | 1.2.0 |
-| kyuubi.metrics.enabled | true | Set to true to enable kyuubi metrics system | boolean | 1.2.0 |
-| kyuubi.metrics.json.interval | PT5S | How often should report metrics to JSON file | duration | 1.2.0 |
-| kyuubi.metrics.json.location | metrics | Where the JSON metrics file located | string | 1.2.0 |
-| kyuubi.metrics.prometheus.path | /metrics | URI context path of prometheus metrics HTTP server | string | 1.2.0 |
-| kyuubi.metrics.prometheus.port | 10019 | Prometheus metrics HTTP server port | int | 1.2.0 |
-| kyuubi.metrics.reporters | JSON | A comma-separated list for all metrics reporters - CONSOLE - ConsoleReporter which outputs measurements to CONSOLE periodically.
- JMX - JmxReporter which listens for new metrics and exposes them as MBeans.
- JSON - JsonReporter which outputs measurements to json file periodically.
- PROMETHEUS - PrometheusReporter which exposes metrics in Prometheus format.
- SLF4J - Slf4jReporter which outputs measurements to system log periodically.
| set | 1.2.0 |
-| kyuubi.metrics.slf4j.interval | PT5S | How often should report metrics to SLF4J logger | duration | 1.2.0 |
+| Key | Default | Meaning | Type | Since |
+|---------------------------------|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|-------|
+| kyuubi.metrics.console.interval | PT5S | How often should report metrics to console | duration | 1.2.0 |
+| kyuubi.metrics.enabled | true | Set to true to enable kyuubi metrics system | boolean | 1.2.0 |
+| kyuubi.metrics.json.interval | PT5S | How often should report metrics to JSON file | duration | 1.2.0 |
+| kyuubi.metrics.json.location | metrics | Where the JSON metrics file located | string | 1.2.0 |
+| kyuubi.metrics.prometheus.path | /metrics | URI context path of prometheus metrics HTTP server | string | 1.2.0 |
+| kyuubi.metrics.prometheus.port | 10019 | Prometheus metrics HTTP server port | int | 1.2.0 |
+| kyuubi.metrics.reporters | PROMETHEUS | A comma-separated list for all metrics reporters - CONSOLE - ConsoleReporter which outputs measurements to CONSOLE periodically.
- JMX - JmxReporter which listens for new metrics and exposes them as MBeans.
- JSON - JsonReporter which outputs measurements to json file periodically.
- PROMETHEUS - PrometheusReporter which exposes metrics in Prometheus format.
- SLF4J - Slf4jReporter which outputs measurements to system log periodically.
| set | 1.2.0 |
+| kyuubi.metrics.slf4j.interval | PT5S | How often should report metrics to SLF4J logger | duration | 1.2.0 |
### Operation
diff --git a/docs/deployment/migration-guide.md b/docs/deployment/migration-guide.md
index 27dad2aba92..58df0fcc629 100644
--- a/docs/deployment/migration-guide.md
+++ b/docs/deployment/migration-guide.md
@@ -24,6 +24,9 @@
To restore previous behavior, set `kyuubi.metadata.store.jdbc.database.type=DERBY` and
`kyuubi.metadata.store.jdbc.url=jdbc:derby:memory:kyuubi_state_store_db;create=true`.
+* Since Kyuubi 1.8, PROMETHEUS is changed as the default metrics reporter. To restore previous behavior,
+ set `kyuubi.metrics.reporters=JSON`.
+
## Upgrading from Kyuubi 1.7.1 to 1.7.2
* Since Kyuubi 1.7.2, for Kyuubi BeeLine, please use `--python-mode` option to run python code or script.
diff --git a/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala b/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala
index fe11f6eb18b..9bc2e63243a 100644
--- a/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala
+++ b/kyuubi-metrics/src/main/scala/org/apache/kyuubi/metrics/MetricsConf.scala
@@ -46,7 +46,7 @@ object MetricsConf {
.transformToUpperCase
.toSet()
.checkValues(ReporterType)
- .createWithDefault(Set(JSON.toString))
+ .createWithDefault(Set(PROMETHEUS.toString))
val METRICS_CONSOLE_INTERVAL: ConfigEntry[Long] = buildConf("kyuubi.metrics.console.interval")
.doc("How often should report metrics to console")
diff --git a/kyuubi-server/src/test/scala/org/apache/kyuubi/events/handler/ServerJsonLoggingEventHandlerSuite.scala b/kyuubi-server/src/test/scala/org/apache/kyuubi/events/handler/ServerJsonLoggingEventHandlerSuite.scala
index 2f794ed4819..1dc24aeec94 100644
--- a/kyuubi-server/src/test/scala/org/apache/kyuubi/events/handler/ServerJsonLoggingEventHandlerSuite.scala
+++ b/kyuubi-server/src/test/scala/org/apache/kyuubi/events/handler/ServerJsonLoggingEventHandlerSuite.scala
@@ -34,6 +34,7 @@ import org.apache.kyuubi._
import org.apache.kyuubi.client.util.BatchUtils._
import org.apache.kyuubi.config.KyuubiConf
import org.apache.kyuubi.events.ServerEventHandlerRegister
+import org.apache.kyuubi.metrics.MetricsConf
import org.apache.kyuubi.operation.HiveJDBCTestHelper
import org.apache.kyuubi.operation.OperationState._
import org.apache.kyuubi.server.KyuubiServer
@@ -56,6 +57,7 @@ class ServerJsonLoggingEventHandlerSuite extends WithKyuubiServer with HiveJDBCT
.set(KyuubiConf.SERVER_EVENT_JSON_LOG_PATH, serverLogRoot)
.set(KyuubiConf.ENGINE_SPARK_EVENT_LOGGERS, Seq("JSON"))
.set(KyuubiConf.ENGINE_EVENT_JSON_LOG_PATH, engineLogRoot)
+ .set(MetricsConf.METRICS_REPORTERS, Set.empty[String])
}
override protected def jdbcUrl: String = getJdbcUrl