https://community.cloudera.com/t5/Support-Questions/How-to-troubleshoot-slow-NameNode-start-up/m-p/281598#M209468 <P>Yes, it took enormously long to get rid of those deleted block and it only finished a few hours ago.</P><P>No..those blocks were essentially a massive folder (almost 1 TB) that was deleted by someone. Its slow because its just a single node and a single machine setup. Basically 1 name node, 1 secondary name node, 1 data node all all on the same box (HDP 2.6 + HCP).</P><P>&nbsp;</P><P>Are there any tuning/diagnostic guides available with regards to the parameters that you mentioned?</P><P>&nbsp;</P><P>Thank you for your help and assistance so far.</P><P>&nbsp;</P><P>&nbsp;</P> Tue, 29 Oct 2019 21:29:56 GMT Elephanta 2019-10-29T21:29:56Z