turboFei commented on code in PR #6040:
URL: https://github.com/apache/kyuubi/pull/6040#discussion_r1477415856
##########
externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/SparkSQLEngine.scala:
##########
@@ -170,18 +170,41 @@ case class SparkSQLEngine(spark: SparkSession) extends
Serverable("SparkSQLEngin
val maxLifetime = conf.get(ENGINE_SPARK_MAX_LIFETIME)
val deregistered = new AtomicBoolean(false)
if (maxLifetime > 0) {
+ val gracefulPeriod = conf.get(ENGINE_SPARK_MAX_LIFETIME_GRACEFUL_PERIOD)
val checkTask: Runnable = () => {
- if (!shutdown.get && System.currentTimeMillis() - getStartTime >
maxLifetime) {
+ val elapsedTime = System.currentTimeMillis() - getStartTime
+ if (!shutdown.get && elapsedTime > maxLifetime) {
if (deregistered.compareAndSet(false, true)) {
- info(s"Spark engine has been running for more than $maxLifetime
ms," +
- s" deregistering from engine discovery space.")
- frontendServices.flatMap(_.discoveryService).foreach(_.stop())
+ ThreadUtils.runInNewThread("engine-de-register", isDaemon = false)
{
+ // for ETCD, the de-registering process might be blocked, so
deregister it async
+ info(s"Spark engine has been running for more than $maxLifetime
ms," +
+ s" deregistering from engine discovery space.")
+ frontendServices.flatMap(_.discoveryService).foreach(_.stop())
Review Comment:
```
09:46:29.180 vertx-blocked-thread-checker WARN BlockedThreadChecker: Thread
Thread[vert.x-eventloop-thread-0,5,main] has been blocked for 19018 ms, time
limit is 2000 ms
io.vertx.core.VertxException: Thread blocked
at java.lang.Thread.sleep(Native Method)
at
org.apache.kyuubi.ha.client.ServiceDiscovery.stopGracefully(ServiceDiscovery.scala:71)
at
org.apache.kyuubi.ha.client.etcd.EtcdDiscoveryClient$DeRegisterWatcher.$anonfun$onNext$2(EtcdDiscoveryClient.scala:384)
at
org.apache.kyuubi.ha.client.etcd.EtcdDiscoveryClient$DeRegisterWatcher.$anonfun$onNext$2$adapted(EtcdDiscoveryClient.scala:381)
at
org.apache.kyuubi.ha.client.etcd.EtcdDiscoveryClient$DeRegisterWatcher$$Lambda$2964/1803489267.apply(Unknown
Source)
at
scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
at
scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
at
org.apache.kyuubi.ha.client.etcd.EtcdDiscoveryClient$DeRegisterWatcher.onNext(EtcdDiscoveryClient.scala:381)
at
io.etcd.jetcd.impl.WatchImpl$WatcherImpl.onNext(WatchImpl.java:307)
at
io.etcd.jetcd.impl.WatchImpl$WatcherImpl$$Lambda$2892/1233911532.handle(Unknown
Source)
at
io.vertx.grpc.stub.StreamObserverReadStream.onNext(StreamObserverReadStream.java:37)
at
io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onMessage(ClientCalls.java:468)
at
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInternal(ClientCallImpl.java:667)
at
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInContext(ClientCallImpl.java:654)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at
io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)
at
io.vertx.grpc.VertxChannelBuilder.lambda$null$0(VertxChannelBuilder.java:305)
at
io.vertx.grpc.VertxChannelBuilder$$Lambda$2847/1899882869.handle(Unknown Source)
at
io.vertx.core.impl.ContextInternal.dispatch(ContextInternal.java:276)
```
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