https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-switch-HDFS-to-using-Quorum-based-storage/m-p/26808#M5661 <P>This turned out to be a configuration setting issue.</P><P>&nbsp;</P><P>"<SPAN>dfs.namenode.shared.edits.dir" had a directory value in it, and needed to be cleared.</SPAN></P> Tue, 28 Apr 2015 16:08:02 GMT Mythobeast 2015-04-28T16:08:02Z https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-switch-HDFS-to-using-Quorum-based-storage/m-p/26786#M5660 <P>I installed a Cloudera Hadoop cluster last week, and shifted HDFS to high availability via it's automated "Enable High Availability" button. Now it's giving me the warning message "<A target="_blank" href="http://hadoopmanager0001p1mdw1.sendgrid.net:7180/cmf/services/6/config">HDFS High Availability using shared NFS mounts is not supported with CDH 5.0 and later versions. You are advised to switch your HDFS HA setup to Quorum-based Storage. You must switch your HDFS HA setup to Quorum-based Storage before attempting to upgrade to CDH 5.</A>"<BR /><BR />I can't find any documentation on how I might go about this. It all seems to assume that it was done correctly when the system did the conversion. How can I fix this?</P> Fri, 16 Sep 2022 09:27:07 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-switch-HDFS-to-using-Quorum-based-storage/m-p/26786#M5660 Mythobeast 2022-09-16T09:27:07Z https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-switch-HDFS-to-using-Quorum-based-storage/m-p/26808#M5661 <P>This turned out to be a configuration setting issue.</P><P>&nbsp;</P><P>"<SPAN>dfs.namenode.shared.edits.dir" had a directory value in it, and needed to be cleared.</SPAN></P> Tue, 28 Apr 2015 16:08:02 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-switch-HDFS-to-using-Quorum-based-storage/m-p/26808#M5661 Mythobeast 2015-04-28T16:08:02Z