Sandor Magyari created AMBARI-16225:
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Summary: Blueprint Deployed Clusters Throw Exceptions On Startup
Key: AMBARI-16225
URL: https://issues.apache.org/jira/browse/AMBARI-16225
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: ambari-2.4.0
Reporter: Sandor Magyari
Assignee: Sandor Magyari
Priority: Critical
Fix For: ambari-2.4.0
After deploying a cluster with standard services (ZK, HDFS, etc) using
blueprints, when user restarts Ambari, there are exceptions like below as the
server is starting up.
{code}
java.lang.NullPointerException
at
org.apache.ambari.server.controller.internal.Stack.<init>(Stack.java:164)
at
org.apache.ambari.server.topology.BlueprintImpl.parseStack(BlueprintImpl.java:292)
at
org.apache.ambari.server.topology.BlueprintImpl.<init>(BlueprintImpl.java:66)
at
org.apache.ambari.server.topology.BlueprintFactory.getBlueprint(BlueprintFactory.java:87)
at
org.apache.ambari.server.topology.PersistedStateImpl$ReplayedTopologyRequest.<init>(PersistedStateImpl.java:334)
at
org.apache.ambari.server.topology.PersistedStateImpl.getAllRequests(PersistedStateImpl.java:154)
at
org.apache.ambari.server.topology.TopologyManager.ensureInitialized(TopologyManager.java:126)
at
org.apache.ambari.server.topology.TopologyManager.onHostHeartBeatLost(TopologyManager.java:386)
at
org.apache.ambari.server.state.host.HostImpl$HostHeartbeatLostTransition.transition(HostImpl.java:408)
at
org.apache.ambari.server.state.host.HostImpl$HostHeartbeatLostTransition.transition(HostImpl.java:396)
at
org.apache.ambari.server.state.fsm.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:354)
at
org.apache.ambari.server.state.fsm.StateMachineFactory.doTransition(StateMachineFactory.java:294)
at
org.apache.ambari.server.state.fsm.StateMachineFactory.access$300(StateMachineFactory.java:39)
at
org.apache.ambari.server.state.fsm.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:440)
at
org.apache.ambari.server.state.host.HostImpl.handleEvent(HostImpl.java:584)
at
org.apache.ambari.server.agent.HeartbeatMonitor.doWork(HeartbeatMonitor.java:159)
at
org.apache.ambari.server.agent.HeartbeatMonitor.run(HeartbeatMonitor.java:120)
at java.lang.Thread.run(Thread.java:745)
{code}
Looks like a the AMC is not initialized yet as the heartbeat from agents is
being handled. It doesn't seem to affect operation of the cluster, but it looks
really bad.
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