Reduce verbosity of zookeeper logging (#1547)

* reduce more log verbosity

heron/common/src/java/com/twitter/heron/common/utils/logging/LoggingHelper.java

@@ -70,11 +70,16 @@ public static void loggerInit(Level level, boolean isRedirectStdOutErr, String f
 
     rootLogger.setLevel(level);
 
+    if (rootLogger.getLevel().intValue() < Level.WARNING.intValue()) {
+      // zookeeper logging scares me. if people want this, we can patch to config-drive this
+      Logger.getLogger("org.apache.zookeeper").setLevel(Level.WARNING);
+    }
+
     if (isRedirectStdOutErr) {
 
       // Remove ConsoleHandler if present, to avoid StackOverflowError.
       // ConsoleHandler writes to System.err and since we are redirecting
-      // System.err to Logger, it results in an infinte loop.
+      // System.err to Logger, it results in an infinite loop.
       for (Handler handler : rootLogger.getHandlers()) {
         if (handler instanceof ConsoleHandler) {
           rootLogger.removeHandler(handler);

third_party/pex/_pex.py

@@ -132,7 +132,7 @@ def main():
         poptions.disable_cache = options.disable_cache
 
 
-        print("pex options: %s" % poptions)
+        #print("pex options: %s" % poptions)
         os.environ["PATH"] = ".:%s:/bin:/usr/bin" % poptions.python
 
         # The version of pkg_resources.py (from setuptools) on some distros is too old for PEX. So
@@ -156,8 +156,8 @@ def main():
 
         # Add prebuilt libraries listed in the manifest.
         reqs = manifest.get('requirements', {}).keys()
-        if len(reqs) > 0:
-          print("pex requirements: %s" % reqs)
+        #if len(reqs) > 0:
+        #  print("pex requirements: %s" % reqs)
         pex_builder = build_pex(reqs, poptions,
                                 resolver_options_builder, interpreter=interpreter)