Robert Metzger created FLINK-4097:
-------------------------------------
Summary: Cassandra Sink throws NPE on closing if server is not
available
Key: FLINK-4097
URL: https://issues.apache.org/jira/browse/FLINK-4097
Project: Flink
Issue Type: Bug
Components: Cassandra Connector, Streaming Connectors
Affects Versions: 1.1.0
Reporter: Robert Metzger
{code}
11:41:41,515 ERROR
org.apache.flink.streaming.connectors.cassandra.CassandraSinkBase - Error
while closing session.
java.lang.NullPointerException
at
org.apache.flink.streaming.connectors.cassandra.CassandraSinkBase.close(CassandraSinkBase.java:84)
at
org.apache.flink.api.common.functions.util.FunctionUtils.closeFunction(FunctionUtils.java:45)
at
org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.dispose(AbstractUdfStreamOperator.java:107)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.disposeAllOperators(StreamTask.java:370)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:304)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:588)
at java.lang.Thread.run(Thread.java:745)
{code}
{code}
11:41:43,896 ERROR org.apache.flink.runtime.taskmanager.Task
- Task execution failed.
com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried
for query failed (tried: /127.0.0.1:9042
(com.datastax.driver.core.exceptions.TransportException: [/127.0.0.1] Cannot
connect))
at
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:231)
at
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1414)
at com.datastax.driver.core.Cluster.init(Cluster.java:162)
at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:333)
at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:308)
at com.datastax.driver.core.Cluster.connect(Cluster.java:250)
at
org.apache.flink.streaming.connectors.cassandra.CassandraSinkBase.open(CassandraSinkBase.java:67)
at
org.apache.flink.streaming.connectors.cassandra.CassandraPojoSink.open(CassandraPojoSink.java:48)
at
org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38)
at
org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:340)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:225)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:588)
at java.lang.Thread.run(Thread.java:745)
{code}
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