cxzl25 commented on code in PR #5662:
URL: https://github.com/apache/kyuubi/pull/5662#discussion_r1582078092
##########
kyuubi-server/src/main/scala/org/apache/kyuubi/engine/EngineRef.scala:
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@@ -366,4 +374,48 @@ private[kyuubi] class EngineRef(
}
}
}
+
+ private def getAdaptivePoolId(poolSize: Int): Int = {
+ val sessionThreshold = conf.get(ENGINE_POOL_ADAPTIVE_SESSION_THRESHOLD)
+ val metricsSpace =
+
s"/metrics/${serverSpace}_${KYUUBI_VERSION}_${shareLevel}_$engineType/$sessionUser"
+ DiscoveryClientProvider.withDiscoveryClient(conf) { client =>
+ tryWithLock(client) {
+ if (client.pathNonExists(metricsSpace)) {
+ client.create(metricsSpace, "PERSISTENT")
+ }
+ }
+ val metrics = client.getChildren(metricsSpace)
+ if (metrics.isEmpty) {
+ return Random.nextInt(poolSize)
+ } else {
+ engineType match {
+ case SPARK_SQL =>
+ val engineMetricsMap = metrics.map { p =>
+ objectMapper.readValue(
+ new String(client.getData(s"$metricsSpace/$p")),
+ classOf[Map[String, Int]])
+ }
+ if (engineMetricsMap.isEmpty) {
+ return Random.nextInt(poolSize)
+ } else {
+ val candidate = engineMetricsMap.filter(_.contains("poolID"))
+ .minBy { map =>
+ (
+ map.getOrElse("openSessionCount", sessionThreshold),
Review Comment:
```suggestion
map.getOrElse("openSessionCount", 0),
```
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