Greetings, Pig community. I am using PigUnit (PigTest.java) in a unit test in Apache Calcite [1] and have observed intermittent test failures [2]. Happens somewhat often on Travis-CI builds. PigUnit executes scripts locally and AFAIK the cause is file permissions but it's difficult to tell for certain because reproducing locally is rare and inconsistent.
Anyone experience anything like this? Pig version is 0.16.0. Here is the stack trace of the exception that occurs when it happens (not very helpful): Tests run: 8, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 4.925 sec <<< FAILURE! - in org.apache.calcite.test.PigRelBuilderStyleTest testImplWithGroupByCountDistinct(org.apache.calcite.test.PigRelBuilderStyleTest) Time elapsed: 0.676 sec <<< ERROR! java.lang.RuntimeException: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias t at org.apache.calcite.test.PigRelBuilderStyleTest.assertScriptAndResults(PigRelBuilderStyleTest.java:253) at org.apache.calcite.test.PigRelBuilderStyleTest.testImplWithGroupByCountDistinct(PigRelBuilderStyleTest.java:149) Caused by: org.apache.pig.impl.logicalLayer.FrontendException: Unable to open iterator for alias t at org.apache.calcite.test.PigRelBuilderStyleTest.assertScriptAndResults(PigRelBuilderStyleTest.java:251) at org.apache.calcite.test.PigRelBuilderStyleTest.testImplWithGroupByCountDistinct(PigRelBuilderStyleTest.java:149) Caused by: java.io.IOException: Job terminated with anomalous status FAILED at org.apache.calcite.test.PigRelBuilderStyleTest.assertScriptAndResults(PigRelBuilderStyleTest.java:251) at org.apache.calcite.test.PigRelBuilderStyleTest.testImplWithGroupByCountDistinct(PigRelBuilderStyleTest.java:149) [1] https://github.com/apache/calcite/blob/master/pig/src/test/java/org/apache/calcite/test/PigRelBuilderStyleTest.java#L257 [2] https://issues.apache.org/jira/browse/CALCITE-1561?focusedCommentId=15901638&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15901638 Thanks! Eli
