diff --git a/src/ruby/ext/grpc/rb_call.c b/src/ruby/ext/grpc/rb_call.c
index 6da7d3c8305..f4ae6fab846 100644
--- a/src/ruby/ext/grpc/rb_call.c
+++ b/src/ruby/ext/grpc/rb_call.c
@@ -607,19 +607,19 @@ static VALUE grpc_rb_call_run_batch(VALUE self, VALUE cqueue, VALUE tag,
     rb_raise(grpc_rb_eCallError,
              "grpc_call_start_batch failed with %s (code=%d)",
              grpc_call_error_detail_of(err), err);
-    return;
+    return Qnil;
   }
   ev = grpc_rb_completion_queue_pluck_event(cqueue, tag, timeout);
   if (ev == NULL) {
     grpc_run_batch_stack_cleanup(&st);
     rb_raise(grpc_rb_eOutOfTime, "grpc_call_start_batch timed out");
-    return;
+    return Qnil;
   }
   if (ev->data.op_complete != GRPC_OP_OK) {
     grpc_run_batch_stack_cleanup(&st);
     rb_raise(grpc_rb_eCallError, "start_batch completion failed, (code=%d)",
              ev->data.op_complete);
-    return;
+    return Qnil;
   }
 
   /* Build and return the BatchResult struct result */
diff --git a/src/ruby/grpc.gemspec b/src/ruby/grpc.gemspec
index c6335791025..19b3e21cb6d 100755
--- a/src/ruby/grpc.gemspec
+++ b/src/ruby/grpc.gemspec
@@ -26,7 +26,7 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'google-protobuf', '~> 3.0.0alpha.1.1'
   s.add_dependency 'googleauth', '~> 0.4'  # reqd for interop tests
-  s.add_dependency 'logging', '~> 1.8'
+  s.add_dependency 'logging', '~> 2.0'
   s.add_dependency 'minitest', '~> 5.4'  # reqd for interop tests
 
   s.add_development_dependency 'simplecov', '~> 0.9'
diff --git a/src/ruby/lib/grpc.rb b/src/ruby/lib/grpc.rb
index b0f68035cd6..80b5743e914 100644
--- a/src/ruby/lib/grpc.rb
+++ b/src/ruby/lib/grpc.rb
@@ -30,6 +30,7 @@
 require 'grpc/errors'
 require 'grpc/grpc'
 require 'grpc/logconfig'
+require 'grpc/notifier'
 require 'grpc/version'
 require 'grpc/core/time_consts'
 require 'grpc/generic/active_call'
diff --git a/src/ruby/lib/grpc/generic/active_call.rb b/src/ruby/lib/grpc/generic/active_call.rb
index 43ba5499059..947c39cd226 100644
--- a/src/ruby/lib/grpc/generic/active_call.rb
+++ b/src/ruby/lib/grpc/generic/active_call.rb
@@ -188,7 +188,7 @@ module GRPC
     # @param marshalled [false, true] indicates if the object is already
     # marshalled.
     def remote_send(req, marshalled = false)
-      logger.debug("sending #{req.inspect}, marshalled? #{marshalled}")
+      logger.debug("sending #{req}, marshalled? #{marshalled}")
       if marshalled
         payload = req
       else
diff --git a/src/ruby/lib/grpc/generic/bidi_call.rb b/src/ruby/lib/grpc/generic/bidi_call.rb
index b813ab5b542..4ca3004d6f0 100644
--- a/src/ruby/lib/grpc/generic/bidi_call.rb
+++ b/src/ruby/lib/grpc/generic/bidi_call.rb
@@ -123,8 +123,7 @@ module GRPC
         break if req.equal?(END_OF_READS)
         yield req
       end
-      @loop_th.join
-      @enq_th.join
+      @enq_th.join if @enq_th.alive?
     end
 
     # during bidi-streaming, read the requests to send from a separate thread
diff --git a/src/ruby/lib/grpc/generic/rpc_server.rb b/src/ruby/lib/grpc/generic/rpc_server.rb
index 88c24aa92bb..3375fcf20ac 100644
--- a/src/ruby/lib/grpc/generic/rpc_server.rb
+++ b/src/ruby/lib/grpc/generic/rpc_server.rb
@@ -54,6 +54,18 @@ module GRPC
   end
   module_function :handle_signals
 
+  # Sets up a signal handler that adds signals to the signal handling global.
+  #
+  # Signal handlers should do as little as humanly possible.
+  # Here, they just add themselves to $grpc_signals
+  #
+  # RpcServer (and later other parts of gRPC) monitors the signals
+  # $grpc_signals in its own non-signal context.
+  def trap_signals
+    %w(INT TERM).each { |sig| trap(sig) { $grpc_signals << sig } }
+  end
+  module_function :trap_signals
+
   # Pool is a simple thread pool.
   class Pool
     # Default keep alive period is 1s
@@ -172,17 +184,6 @@ module GRPC
     # Signal check period is 0.25s
     SIGNAL_CHECK_PERIOD = 0.25
 
-    # Sets up a signal handler that adds signals to the signal handling global.
-    #
-    # Signal handlers should do as little as humanly possible.
-    # Here, they just add themselves to $grpc_signals
-    #
-    # RpcServer (and later other parts of gRPC) monitors the signals
-    # $grpc_signals in its own non-signal context.
-    def self.trap_signals
-      %w(INT TERM).each { |sig| trap(sig) { $grpc_signals << sig } }
-    end
-
     # setup_cq is used by #initialize to constuct a Core::CompletionQueue from
     # its arguments.
     def self.setup_cq(alt_cq)
@@ -299,12 +300,12 @@ module GRPC
     # Runs the server in its own thread, then waits for signal INT or TERM on
     # the current thread to terminate it.
     def run_till_terminated
-      self.class.trap_signals
+      GRPC.trap_signals
       t = Thread.new { run }
       wait_till_running
       loop do
         sleep SIGNAL_CHECK_PERIOD
-        break unless handle_signals
+        break unless GRPC.handle_signals
       end
       stop
       t.join
diff --git a/src/ruby/lib/grpc/notifier.rb b/src/ruby/lib/grpc/notifier.rb
new file mode 100644
index 00000000000..caa18bbed6d
--- /dev/null
+++ b/src/ruby/lib/grpc/notifier.rb
@@ -0,0 +1,60 @@
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# GRPC contains the General RPC module.
+module GRPC
+  # Notifier is useful high-level synchronization primitive.
+  class Notifier
+    attr_reader :payload, :notified
+    alias_method :notified?, :notified
+
+    def initialize
+      @mutex    = Mutex.new
+      @cvar     = ConditionVariable.new
+      @notified = false
+      @payload  = nil
+    end
+
+    def wait
+      @mutex.synchronize do
+        @cvar.wait(@mutex) until notified?
+      end
+    end
+
+    def notify(payload)
+      @mutex.synchronize do
+        return Error.new('already notified') if notified?
+        @payload  = payload
+        @notified = true
+        @cvar.signal
+        return nil
+      end
+    end
+  end
+end
diff --git a/src/ruby/spec/generic/client_stub_spec.rb b/src/ruby/spec/generic/client_stub_spec.rb
index 88c6b44c229..98d68ccfbb8 100644
--- a/src/ruby/spec/generic/client_stub_spec.rb
+++ b/src/ruby/spec/generic/client_stub_spec.rb
@@ -29,37 +29,8 @@
 
 require 'grpc'
 
-# Notifier is useful high-level synchronization primitive.
-class Notifier
-  attr_reader :payload, :notified
-  alias_method :notified?, :notified
-
-  def initialize
-    @mutex    = Mutex.new
-    @cvar     = ConditionVariable.new
-    @notified = false
-    @payload  = nil
-  end
-
-  def wait
-    @mutex.synchronize do
-      @cvar.wait(@mutex) until notified?
-    end
-  end
-
-  def notify(payload)
-    @mutex.synchronize do
-      return Error.new('already notified') if notified?
-      @payload  = payload
-      @notified = true
-      @cvar.signal
-      return nil
-    end
-  end
-end
-
 def wakey_thread(&blk)
-  n = Notifier.new
+  n = GRPC::Notifier.new
   t = Thread.new do
     blk.call(n)
   end