pan3793 commented on code in PR #5089:
URL: https://github.com/apache/kyuubi/pull/5089#discussion_r1272369721
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kyuubi-server/src/main/scala/org/apache/kyuubi/session/KyuubiSessionManager.scala:
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@@ -63,6 +63,8 @@ class KyuubiSessionManager private (name: String) extends
SessionManager(name) {
private var batchLimiter: Option[SessionLimiter] = None
lazy val (signingPrivateKey, signingPublicKey) = SignUtils.generateKeyPair()
+ var engineBuilderSemaphore: Option[Semaphore] = None
Review Comment:
```suggestion
var engineStartupProcessSemaphore: Option[Semaphore] = None
```
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