[GitHub] zentol commented on a change in pull request #6469: [FLINK-10016] Make YARN/Kerberos end-to-end test stricter

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zentol commented on a change in pull request #6469: [FLINK-10016] Make YARN/Kerberos end-to-end test stricter
URL: https://github.com/apache/flink/pull/6469#discussion_r206860142
 
 

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 File path: flink-end-to-end-tests/test-scripts/test_yarn_kerberos_docker.sh
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 @@ -106,12 +107,22 @@ until docker exec -it master bash -c "export HADOOP_CLASSPATH=\`hadoop classpath
 done
 
 docker exec -it master bash -c "kinit -kt /home/hadoop-user/hadoop-user.keytab hadoop-user"
+docker exec -it master bash -c "hdfs dfs -ls $OUTPUT_PATH"
 OUTPUT=$(docker exec -it master bash -c "hdfs dfs -cat $OUTPUT_PATH/*")
 docker exec -it master bash -c "kdestroy"
 echo "$OUTPUT"
 
 if [[ ! "$OUTPUT" =~ "consummation,1" ]]; then
     echo "Output does not contain (consummation, 1) as required"
+    mkdir -p $TEST_DATA_DIR/logs
+    echo "Hadoop logs:"
+    docker cp master:/var/log/hadoop/* $TEST_DATA_DIR/logs/
+    for f in $TEST_DATA_DIR/logs/*; do
+        echo "$f:"
 
 Review comment:
   how large can these become? Remember that travis has a 5mb limit for log output!

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