[DRILL-2572] Test case failures on Linux

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Execution - Relational Operators
• Assignee: Sudheesh Katkam
• Reporter: Sudheesh Katkam
• Created: 26/Mar/15 00:07
• Updated: 15/Jul/15 00:02
• Resolved: 26/Mar/15 16:00

Description

<copied from dev list>
I am getting unit test failures (NPEs) on my Linux VM on the latest master (commit: 8493713). I tried this multiple times (47 errors first time, 22 second time, 7 third time, 15 fourth time ..) on multiple machines.

Some setup information:

root@perfnode207:~/dev# cat /proc/version
Linux version 3.2.0-76-generic (buildd@batsu) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #111-Ubuntu SMP Tue Jan 13 22:16:09 UTC 2015

root@perfnode207:~/dev# java -version
java version "1.7.0_75"
OpenJDK Runtime Environment (IcedTea 2.5.4) (7u75-2.5.4-1~precise1)
OpenJDK 64-Bit Server VM (build 24.75-b04, mixed mode)

root@perfnode207:~/dev# mvn --version
Apache Maven 3.2.1 (ea8b2b07643dbb1b84b6d16e1f08391b666bc1e9; 2014-02-14T17:37:52+00:00)
Maven home: /usr/share/maven3
Java version: 1.7.0_75, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-7-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.2.0-76-generic", arch: "amd64", family: "unix"

And here’s how to replicate:

root@perfnode207:~/dev# git clone https://github.com/apache/drill.git drill_master
…
root@perfnode207:~/dev# cd drill_master
root@perfnode207:~/dev/drill_master# mvn clean install
…
Running org.apache.drill.TestTpchExplain#tpch12
Exception (no rows returned): org.apache.drill.exec.rpc.RpcException: NullPointerException:

Running org.apache.drill.TestTpchExplain#tpch13
Exception (no rows returned): org.apache.drill.exec.rpc.RpcException: NullPointerException:

Running org.apache.drill.TestTpchExplain#tpch14
Exception (no rows returned): org.apache.drill.exec.rpc.RpcException: NullPointerException:

Running org.apache.drill.TestTpchExplain#tpch16
Exception (no rows returned): org.apache.drill.exec.rpc.RpcException: NullPointerException:
…

I have attached (as .json and .txt) the event from Lilith for the following test:

Test Failed (d: 0 B(64.0 MiB), h: 2.8 MiB(534.0 MiB), nh: 237.7 KiB(65.3 MiB)): testEmptyResultSet(org.apache.drill.TestFrameworkTest)
org.apache.drill.exec.rpc.RpcException NullPointerException: 
at org.apache.drill.exec.rpc.user.QueryResultHandler.batchArrived(QueryResultHandler.java:157) ~[classes/:na]
at org.apache.drill.exec.rpc.user.UserClient.handleReponse(UserClient.java:93) ~[classes/:na]