https://community.cloudera.com/t5/Support-Questions/hdfs-client-takes-20s-to-failover-to-alternate-namenode/m-p/208698#M170655 <P>Hi, I'm facing completely same issue with HDP2.6.2.</P><P>HDFS client have to wait about 20 seconds when the 1st NameNode is powered off.</P><P>(Actually, we had this issue then the 1st NameNode had kernel hang (kernel panic).)</P><P>Do you find good solution or workaround???</P><P>If so, please share it. Any information will help us !</P> Tue, 18 Sep 2018 15:36:25 GMT tomo_hirano 2018-09-18T15:36:25Z