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JvmSettings for cassandra #364

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MJ11FS opened this issue Apr 7, 2020 · 0 comments
Open

JvmSettings for cassandra #364

MJ11FS opened this issue Apr 7, 2020 · 0 comments

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@MJ11FS
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MJ11FS commented Apr 7, 2020

Issue:
The way JVM xmx and xms are calculated limits each Cassandra container to 25% of memory defined in cdc.Spec.Resources.Limits.Memory().Value(). If we set container requests and limits to 10G our cassandra container will be only set with 2.5G of mem. Why is the value so low?

cassandra-operator/pkg/controller/cassandradatacenter/configmap.go

Line 222 in d36f6a0

jvmHeapSize := maxInt64(minInt64(memoryLimit/2, GIBIBYTE), minInt64(memoryLimit/4, 8*GIBIBYTE))

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@MJ11FS