https://community.cloudera.com/t5/Support-Questions/Hive-queries-taking-LONG-time-to-start/m-p/155054#M117493 <P>Thanks <A rel="user" href="https://community.cloudera.com/users/7530/skurup.html" nodeid="7530">@Sumesh</A></P><P>For several minutes, I get messages like this:</P><P> DAGClientRPCImpl: GetDAGStatus via AM for app: &lt;application ID&gt; dag:&lt;dag ID&gt; IPC Client (client ID) connection to &lt;data node&gt; from &lt;edge node&gt; sending X Got ping response for sessionid: &lt;session ID&gt; after 0ms </P><P>... where X is a number that increases each time this gets printed.</P><P>This entire time, it shows "-1" as the number of "total" and "pending" mappers, and 0 for everything else.</P> Wed, 15 Mar 2017 20:06:26 GMT zack_riesland 2017-03-15T20:06:26Z