@ST1 I reckon it is one knonw issue. Oozie will store temp files in /tmp dir. If /tmp dir has been cleaned up , you may hit this error. As workaround,we can change the tmpdir to different dir and restart the Oozie to make it work. Go to Cloudera Manager > Oozie > Configuration > Java Configuration Options for Oozie Server Append the following, replacing "/new/directory" with the new path to use: -Djava.io.tmpdir=/new/directory ... View more