incubator-hawq git commit: HAWQ-1495 Updated Readme with a note to run tests parallely to avoid answer file mismatch

[rl...@apache.org]

Repository: incubator-hawq
Updated Branches:
  refs/heads/master c8501c652 -> 4cd0c565b


HAWQ-1495 Updated Readme with a note to run tests parallely to avoid answer file mismatch


Project: http://git-wip-us.apache.org/repos/asf/incubator-hawq/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-hawq/commit/4cd0c565
Tree: http://git-wip-us.apache.org/repos/asf/incubator-hawq/tree/4cd0c565
Diff: http://git-wip-us.apache.org/repos/asf/incubator-hawq/diff/4cd0c565

Branch: refs/heads/master
Commit: 4cd0c565b0d9d58b0955d8ccd6d794538b184d58
Parents: c8501c6
Author: Shubham Sharma <sh...@gmail.com>
Authored: Mon Jul 3 16:40:19 2017 -0700
Committer: rlei <rl...@pivotal.io>
Committed: Wed Sep 6 10:18:46 2017 +0800

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 src/test/feature/README.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/4cd0c565/src/test/feature/README.md
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diff --git a/src/test/feature/README.md b/src/test/feature/README.md
index 4048f7a..f0370ba 100644
--- a/src/test/feature/README.md
+++ b/src/test/feature/README.md
@@ -15,8 +15,9 @@ Before building the code of feature tests part, just make sure your compiler sup
 1. Make sure HAWQ is running correctly. If not, `init` or `start` HAWQ at first. Note please don't set locale related arguments for hawq init.
 2. Load environment configuration by running `source $INSTALL_PREFIX/greenplum_path.sh`.
 3. Load hdfs configuration. For example, `export HADOOP_HOME=/Users/wuhong/hadoop-2.7.2 && export PATH=${PATH}:${HADOOP_HOME}/bin`. Since some test cases need `hdfs` and `hadoop` command, just ensure these commands work before running. Otherwise you will get failure.
-4. Run the cases with`./parallel-run-feature-test.sh 8 ./feature-test`(in this case 8 threads in parallel), you could use `--gtest_filter` option to filter test cases(both positive and negative patterns are supported). Please see more options by running `./feature-test --help`. 
-5.You can also run cases with `./parallel-run-feature-test.sh 8 ./feature-test --gtest_schedule` (eg. --gtest_schedule=./full_tests.txt) if you want to run cases in both parallel way and serial way.The schedule file sample is full_tests.txt which stays in the same directory.
+4. Run the cases with`./parallel-run-feature-test.sh 8 ./feature-test`(in this case 8 threads in parallel), you could use `--gtest_filter` option to filter test cases(both positive and negative patterns are supported). Please see more options by running `./feature-test --help`. You can also run cases with `./parallel-run-feature-test.sh 8 ./feature-test --gtest_schedule` (eg. --gtest_schedule=./full_tests.txt) if you want to run cases in both parallel way and serial way.The schedule file sample is full_tests.txt which stays in the same directory.
+
+**NOTE**: To ensure all answer files(files with extension .ans) are uniform in their output format, certain properties are set in parallel-run-feature-test.sh. Therefore running tests direclty using `./feature-test` might cause some tests to fail.  
 
 # Development
 In contribution to HAWQ, we suggest developers submitting feature tests related to your feature development. In writting a featurte test, you need to write a cpp file inside corresponding folders. There are two recommended way to write this cpp file: