Github user kkhatua commented on the issue:
https://github.com/apache/drill/pull/1203
@arina-ielchiieva You're correct about the inability to shutdown other
Drillbits from the WebUI. But, from what @dvjyothsna explained, it seems that
this was the result of a technical hurdle with HTTP**S** protocol. My
understanding was that issuing shutdown to secure remote nodes won't work
because of lack of certificates for those nodes, making it difficult for the
remote Drillbit to authenticate the shutdown command. Keeping that in mind, the
SHUTDOWN buttons would appear only for unsecured Drillbits, i.e. when
Authentication is **_not_** enabled.
https://github.com/kkhatua/drill/blob/dd507ea95a7d0ef4904092ef4fc43ee3b44ef058/exec/java-exec/src/main/resources/rest/index.ftl#L100
For setups requiring Authentication, the shutdown button would not appear.
---
