Oleg Nechiporenko created AMBARI-14898:
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Summary: Alerts: Ability to customize props and thresholds on
SCRIPT alerts via Ambari Web UI
Key: AMBARI-14898
URL: https://issues.apache.org/jira/browse/AMBARI-14898
Project: Ambari
Issue Type: Bug
Components: ambari-web
Affects Versions: 2.4.0
Reporter: Oleg Nechiporenko
Assignee: Oleg Nechiporenko
Fix For: 2.4.0
Script alerts, such as *Ambari Agent / Host Disk Usage* needs to have some
metrics Externalized.
The Usage screens relies on the alert_disk_space.py script to collect metrics
such as Disk utilization (percentage) and directory being checked.
The problem is that the directories being check in this script are:
1. ROOT ("/")
2. /usr/hdp
If ROOT is OK, then "/usr/hdp" is checked subsequently. However if ROOT is NOT
OK (>80% utilization) then "/usr/hdp" is ignored and the "CRITICAL" tag applies
to ROOT.
This would work on a OOTB standard cluster. However, many users, have
Partitions for the hadoop directories. In this instance, "/" is static, no new
content will be added. In this instance being at 80 or 90% is OK, this
directory will never grow beyond that.
"/usr/hdp" is a separate partition that grows in time.
Based on the above described check, the 80% of the root partition will trigger
a "CRITICAL" message, although the "/usr/hdp" partition is OK.
The selection of what directory is being checked should be EXTERNALIZED to a
configurable property to avoid these kinds of misleading messages.
CONVERSELY --- what constitutes "OK" "WARN" or "CRIT" (the percentage that
triggers these) should be left up to the user, not hardcoded in the script.
This is a request to externalize the directories that should be checked, as
well as the Percentages into an external configurable property.
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