ClickHouse Disk Space Critical on Default critical
Disk space on default disk is critically low, below 10%.
>>>
/ (
+
) * 100 < 10
The query calculates the percentage of free disk space on the default ClickHouse disk by dividing the available space by the total space (available + used) and multiplying by 100; the alert fires when this free‑space percentage drops below 10 %. Thus, if less than 10 % of the disk remains unfilled, the alert triggers.
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