Symptoms
Task Collect disk usage statistics on host fails:
Task ID TASK_ID
Task name Collect disk usage statistics on host _HOSTNAME_
Task description Collect disk usage statistics on host _HOSTNAME_
Parent task ID 61
Method name refreshUsageStatistics
Execution status Failed
Start not earlier than Jan-19-2018 00:04
Finished Jan-19-2018 00:04
Output Host #HOST_ID does not exist.
Execution Log Purged
Cause
Task TASK_ID was created by periodic task 61 that was started 18 January 23:00:
61 Update disk usage statistics Jan-18-2018 23:00:00 Jan-18-2018 23:00:11 Successful
But slave node HOSTNAME was removed after 18 January 23:00:
117062490 Cleanup host _HOSTNAME_ Jan-18-2018 23:48:26 Jan-18-2018 23:48:27 cleanupHost2867 Successful
Resolution
It is safe to cancel task TASK_ID Collect disk usage statistics on host