[HAWQ-1469] Don't expose RPS warning messages to command line

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.0.0-incubating
• Component/s: Security
• Assignee: Wen Lin
• Reporter: Wen Lin
• Created: 17/May/17 09:39
• Updated: 12/Jul/17 18:50
• Resolved: 18/May/17 03:08

Description

RPS service address exposing to end-user is not secure, and we should not expose it out.

*Case 1: When master RPS is down, changing to standby RPS*
Current behavior
```
postgres=# select * from a;
WARNING: ranger plugin service from http://test1:8432/rps is unavailable : Couldn't connect to server, try another http://test5:8432/rps
ERROR: permission denied for relation(s): public.a
```
Warning should be removed.
Expected
```
postgres=# select * from a;
ERROR: permission denied for relation(s): public.a
```

*Case 2: When both RPS are down, should only print that RPS is unavailable.*
Current Behavior:
```
postgres=# select * from a;
WARNING: ranger plugin service from http://test5:8432/rps is unavailable : Couldn't connect to server, try another http://test1:8432/rps
ERROR: ranger plugin service from http://test1:8432/rps is unavailable : Couldn't connect to server. (rangerrest.c:463)
```
Expected
```
postgres=# select * from a;
ERROR: ranger plugin service is unavailable : Couldn't connect to server. (rangerrest.c:463)
```

The warning message should be printed in cvs log file.

Issue Links

• links to: GitHub Pull Request #1242