JVM memory filling up warning
JVM memory is filling up (> 80%)
>>>
(sum by (instance)(
{area="heap"}) / sum by (instance)(
{area="heap"})) * 100 > 80
The query computes, for each instance, the heap memory usage percentage by dividing jvm_memory_used_bytes{area="heap"} by jvm_memory_max_bytes{area="heap"}, multiplying by 100, and triggers the alert when that percentage exceeds 80 %. In other words, the alert fires as soon as any JVM instance’s heap usage goes above 80 % of its configured maximum.
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