deploy app to docker hung when docker host was stopped

[aledsage]

I tried to deploy an app to a jclouds:docker location. However, the VM for the docker host was stopped. It seemed to hang forever - I stopped waiting after what felt like 10 minutes. The thread's stacktrace is below.

I expected to get back a nice error after some TCP timeouts, possibly with some retries, to tell me that it couldn't connect.

Provisioning machine in JcloudsPortforwardingSubnetLocation[docker:http://10.47.2.109:4243:notused]

Task[provisioning (docker:http://10.47.2.109:4243) [SUB-TASK, Wrapped[contextEntity:MySqlNodeImpl{id=BTlxffly}]]; TFD0T5Gd]
Submitted by Task[DST manager (internal) [Wrapped[contextEntity:MySqlNodeImpl{id=BTlxffly}]]; PYgBh3sT]

In progress, thread waiting (notify) on com.google.common.util.concurrent.AbstractFuture$Sync@c0624a4f
At: com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:285)
com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116)
com.google.common.util.concurrent.Uninterruptibles.getUninterruptibly(Uninterruptibles.java:135)
com.google.common.cache.LocalCache$LoadingValueReference.waitForValue(LocalCache.java:3552)
com.google.common.cache.LocalCache$Segment.waitForLoadingValue(LocalCache.java:2298)
com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2285)
com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193)
com.google.common.cache.LocalCache.get(LocalCache.java:3932)
com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3936)
com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4806)
org.jclouds.rest.suppliers.MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier.get(MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier.java:121)
org.jclouds.compute.domain.internal.TemplateBuilderImpl.getImages(TemplateBuilderImpl.java:866)
org.jclouds.compute.domain.internal.TemplateBuilderImpl.build(TemplateBuilderImpl.java:680)
brooklyn.location.jclouds.templates.PortableTemplateBuilder.newJcloudsTemplate(PortableTemplateBuilder.java:52)
brooklyn.location.jclouds.templates.PortableTemplateBuilder.build(PortableTemplateBuilder.java:30)
brooklyn.location.jclouds.JcloudsLocation.buildTemplate(JcloudsLocation.java:1029)
brooklyn.location.jclouds.JcloudsLocation.obtainOnce(JcloudsLocation.java:555)
brooklyn.location.jclouds.JcloudsLocation.obtain(JcloudsLocation.java:493)
io.cloudsoft.networking.portforwarding.subnet.JcloudsPortforwardingSubnetLocation.obtain(JcloudsPortforwardingSubnetLocation.java:96)
io.cloudsoft.networking.portforwarding.subnet.JcloudsPortforwardingSubnetLocation.obtain(JcloudsPortforwardingSubnetLocation.java:34)
brooklyn.entity.software.MachineLifecycleEffectorTasks$5$1.call(MachineLifecycleEffectorTasks.java:229)
brooklyn.entity.software.MachineLifecycleEffectorTasks$5$1.call(MachineLifecycleEffectorTasks.java:1)
brooklyn.util.task.Tasks.withBlockingDetails(Tasks.java:83)
brooklyn.entity.software.MachineLifecycleEffectorTasks$5.call(MachineLifecycleEffectorTasks.java:227)
brooklyn.entity.software.MachineLifecycleEffectorTasks$5.call(MachineLifecycleEffectorTasks.java:1)
brooklyn.util.task.DynamicSequentialTask$DstJob.call(DynamicSequentialTask.java:296)
brooklyn.util.task.BasicExecutionManager$3.call(BasicExecutionManager.java:353)