GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/16109
[SPARK-18588][Tests]Fix flaky test:
KafkaSourceStressForDontFailOnDataLossSuite
## What changes were proposed in this pull request?
Fixed the following failures:
```
org.scalatest.exceptions.TestFailedDueToTimeoutException: The code passed
to eventually never returned normally. Attempted 3745 times over
1.0000790851666665 minutes. Last failure message: assertion failed:
failOnDataLoss-0 not deleted after timeout.
```
```
sbt.ForkMain$ForkError:
org.apache.spark.sql.streaming.StreamingQueryException: Query query-66
terminated with exception: null
at
org.apache.spark.sql.execution.streaming.StreamExecution.org$apache$spark$sql$execution$streaming$StreamExecution$$runBatches(StreamExecution.scala:252)
at
org.apache.spark.sql.execution.streaming.StreamExecution$$anon$1.run(StreamExecution.scala:146)
Caused by: sbt.ForkMain$ForkError: java.lang.NullPointerException: null
at java.util.ArrayList.addAll(ArrayList.java:577)
at
org.apache.kafka.clients.Metadata.getClusterForCurrentTopics(Metadata.java:257)
at org.apache.kafka.clients.Metadata.update(Metadata.java:177)
at
org.apache.kafka.clients.NetworkClient$DefaultMetadataUpdater.handleResponse(NetworkClient.java:605)
at
org.apache.kafka.clients.NetworkClient$DefaultMetadataUpdater.maybeHandleCompletedReceive(NetworkClient.java:582)
at
org.apache.kafka.clients.NetworkClient.handleCompletedReceives(NetworkClient.java:450)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:269)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.clientPoll(ConsumerNetworkClient.java:360)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:224)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:192)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.awaitPendingRequests(ConsumerNetworkClient.java:260)
at
org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:222)
at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.ensurePartitionAssignment(ConsumerCoordinator.java:366)
at
org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:978)
at
org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:938)
at
...
```
## How was this patch tested?
Tested in #16048 by running many times.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark fix-kafka-flaky-test
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16109.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #16109
----
commit 0901a65fadc7053bac325552bd1822108a246e75
Author: Shixiong Zhu <[email protected]>
Date: 2016-11-29T01:02:58Z
Fix flaky test: KafkaSourceStressForDontFailOnDataLossSuite
----
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