20 lines
1014 B
YAML
20 lines
1014 B
YAML
---
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features:
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- |
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The override ``rabbitmq_memory_high_watermark`` can be used to set the
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maximum size of the erlang Virtual Machine before the garbage collection
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is triggered. The default is lowered to ``0.2``, from ``0.4`` as the
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garbage collection can require 2x of allocated amount during its
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operation. This can result in a equivalent use of ``0.4``, resulting in
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40% of memory usage, visible to the rabbitMQ container. The original
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default setting of ``0.4`` can lead to 80% memory allocation of rabbitMQ,
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potentially leading to a scenario where the underlying Linux kernel
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is killing the process due to shortage of virtual memory.
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upgrade:
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The rabbitMQ high watermark is set to ``0.2`` rather than ``0.4`` to
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prevent possible OOM situations, which limits the maximum memory usage
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by rabbitMQ to 40% rather than 80% of the memory visible to the rabbitMQ
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container. The override ``rabbitmq_memory_high_watermark`` can be used
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to alter the limit.
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