Github user zjffdu commented on the issue:
https://github.com/apache/zeppelin/pull/2668
@Leemoonsoo Recovery feature is controlled `zeppelin.recovery.enabled` by
in zeppelin-site.xml, if it is enabled, interpreter process won't be killed.
see
https://github.com/apache/zeppelin/pull/2668/files#diff-3477d79f3012453f20c3727ec60338e9R230---
