aurora git commit: Reduce log level of finding a valid leader

[serb]

Repository: aurora
Updated Branches:
  refs/heads/master 205c308c5 -> 176c96a3f


Reduce log level of finding a valid leader

Since the introduction of the Curator-backend [1], we have been logging the 
currently active leader on each request. This happens even if the queried 
scheduler is also the leading one. By reducing the log level to debug, we can 
reduce the logging noise of Aurora significantly.

```
I0630 11:38:04.871 [qtp806277656-123, Slf4jRequestLog:60] 10.x.x.x - - 
[30/Jun/2016:11:38:04 +0000] "POST //master1.example.org/api HTTP/1.1" 307 0
I0630 11:38:04.879 [qtp806277656-129, LeaderRedirect:197] Found leader 
scheduler at 
[ServiceInstance(serviceEndpoint:Endpoint(host:master2.example.org, port:8081), 
additionalEndpoints:{http=Endpoint(host:master2.example.org port:8081)}, 
status:ALIVE)]
I0630 11:38:04.879 [qtp806277656-129, LeaderRedirect:197] Found leader 
scheduler at 
[ServiceInstance(serviceEndpoint:Endpoint(host:master2.example.org, port:8081), 
additionalEndpoints:{http=Endpoint(host:master2.example.org, port:8081)}, 
status:ALIVE)]
I0630 11:38:04.880 [qtp806277656-129, LeaderRedirect:197] Found leader 
scheduler at 
[ServiceInstance(serviceEndpoint:Endpoint(host:master2.example.org, port:8081), 
additionalEndpoints:{http=Endpoint(host:master2.example.org, port:8081)}, 
status:ALIVE)]
```

[1] 
https://github.com/apache/aurora/commit/103dae6871eaa76914ab7fe17adaa174e93f537a#diff-1a20d033e88f293107537e09636007ffR190

Reviewed at https://reviews.apache.org/r/49527/


Project: http://git-wip-us.apache.org/repos/asf/aurora/repo
Commit: http://git-wip-us.apache.org/repos/asf/aurora/commit/176c96a3
Tree: http://git-wip-us.apache.org/repos/asf/aurora/tree/176c96a3
Diff: http://git-wip-us.apache.org/repos/asf/aurora/diff/176c96a3

Branch: refs/heads/master
Commit: 176c96a3f3b8ba276ad60a5c91492af048f792ef
Parents: 205c308
Author: Stephan Erb <s...@apache.org>
Authored: Fri Jul 1 21:39:46 2016 +0200
Committer: Stephan Erb <s...@apache.org>
Committed: Fri Jul 1 21:39:46 2016 +0200

----------------------------------------------------------------------
 src/main/java/org/apache/aurora/scheduler/http/LeaderRedirect.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/aurora/blob/176c96a3/src/main/java/org/apache/aurora/scheduler/http/LeaderRedirect.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/aurora/scheduler/http/LeaderRedirect.java 
b/src/main/java/org/apache/aurora/scheduler/http/LeaderRedirect.java
index 3847fb8..9bf6f52 100644
--- a/src/main/java/org/apache/aurora/scheduler/http/LeaderRedirect.java
+++ b/src/main/java/org/apache/aurora/scheduler/http/LeaderRedirect.java
@@ -194,7 +194,7 @@ class LeaderRedirect implements Closeable {
         LOG.warn("No serviceGroupMonitor in host set, will not redirect 
despite not being leader.");
         return Optional.absent();
       case 1:
-        LOG.info("Found leader scheduler at " + hostSet);
+        LOG.debug("Found leader scheduler at " + hostSet);
         return Optional.of(Iterables.getOnlyElement(hostSet));
       default:
         LOG.error("Multiple serviceGroupMonitor detected, will not redirect: " 
+ hostSet);