nicknezis commented on pull request #3741:
URL: https://github.com/apache/incubator-heron/pull/3741#issuecomment-984966124
Tested a deployment of `acking` topology without specifying any parameters.
When trying to kill the topology, I received the following stack trace in the
`heron-apiserver`:
```
[2021-12-02 20:10:38 +0000] [INFO]
org.apache.heron.statemgr.zookeeper.curator.CuratorStateManager: Closing the
tunnel processes
2021-12-02 20:10:38,231 ERROR
org.apache.heron.apiserver.resources.TopologyResource kill qtp2045766957-13
error killing topology acking
java.lang.IllegalStateException: closed
at okio.RealBufferedSource.select(RealBufferedSource.java:93)
at okhttp3.internal.Util.bomAwareCharset(Util.java:467)
at okhttp3.ResponseBody.string(ResponseBody.java:181)
at
org.apache.heron.scheduler.kubernetes.KubernetesUtils.errorMessageFromResponse(KubernetesUtils.java:77)
at
org.apache.heron.scheduler.kubernetes.V1Controller.deleteStatefulSets(V1Controller.java:313)
at
org.apache.heron.scheduler.kubernetes.V1Controller.killTopology(V1Controller.java:165)
at
org.apache.heron.scheduler.kubernetes.KubernetesScheduler.onKill(KubernetesScheduler.java:113)
at
org.apache.heron.scheduler.client.LibrarySchedulerClient.killTopology(LibrarySchedulerClient.java:61)
at
org.apache.heron.scheduler.RuntimeManagerRunner.killTopologyHandler(RuntimeManagerRunner.java:173)
at
org.apache.heron.scheduler.RuntimeManagerRunner.call(RuntimeManagerRunner.java:98)
at
org.apache.heron.scheduler.RuntimeManagerMain.callRuntimeManagerRunner(RuntimeManagerMain.java:498)
at
org.apache.heron.scheduler.RuntimeManagerMain.manageTopology(RuntimeManagerMain.java:411)
at
org.apache.heron.apiserver.actions.TopologyRuntimeAction.execute(TopologyRuntimeAction.java:39)
at
org.apache.heron.apiserver.resources.TopologyResource.kill(TopologyResource.java:498)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
```
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