Fix Replication related tests

For TestStatsReplicationScenariosACIDNoAutogather:

this test is running "alone" because but still; it sometimes runs more than 40m which results in a timeout
a jira search reveals that was pretty common:
https://issues.apache.org/jira/issues/?jql=text%20~%20%22TestStatsReplicationScenariosACIDNoAutogather%22%20order%20by%20updated%20desc

from the hive logs:

• it seems like after a few minutes this test starts there is an exception:

  2019-12-10T22:43:19,594 DEBUG [Finalizer] metastore.HiveMetaStoreClient: Unable to shutdown metastore client. Will try closing transport directly.
  org.apache.thrift.transport.TTransportException: java.net.SocketException: Socket closed
          at org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.java:161) ~[libthrift-0.9.3-1.jar:0.9.3-1]
          at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:73) ~[libthrift-0.9.3-1.jar:0.9.3-1]
          at org.apache.thrift.TServiceClient.sendBaseOneway(TServiceClient.java:66) ~[libthrift-0.9.3-1.jar:0.9.3-1]
          at com.facebook.fb303.FacebookService$Client.send_shutdown(FacebookService.java:436) ~[libfb303-0.9.3.jar:?]
          at com.facebook.fb303.FacebookService$Client.shutdown(FacebookService.java:430) ~[libfb303-0.9.3.jar:?]
          at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.close(HiveMetaStoreClient.java:776) [hive-standalone-metastore-common-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_102]
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_102]
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_102]
          at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_102]
          at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:212) [hive-standalone-metastore-common-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
          at com.sun.proxy.$Proxy62.close(Unknown Source) [?:?]
          at org.apache.hadoop.hive.ql.metadata.Hive.close(Hive.java:542) [hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
          at org.apache.hadoop.hive.ql.metadata.Hive.finalize(Hive.java:514) [hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
          at java.lang.System$2.invokeFinalize(System.java:1270) [?:1.8.0_102]
          at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:98) [?:1.8.0_102]
          at java.lang.ref.Finalizer.access$100(Finalizer.java:34) [?:1.8.0_102]
          at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:210) [?:1.8.0_102]
  Caused by: java.net.SocketException: Socket closed
          at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:116) ~[?:1.8.0_102]
          at java.net.SocketOutputStream.write(SocketOutputStream.java:153) ~[?:1.8.0_102]
          at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) ~[?:1.8.0_102]
          at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) ~[?:1.8.0_102]
          at org.apache.thrift.transport.TIOStreamTransport.flush(TIOStreamTransport.java:159) ~[libthrift-0.9.3-1.jar:0.9.3-1]
  

• after that some NoSuchObjectExceptions follow
• and then some replications seems to happen

I don't fully understand this; I'll attach the logs...