[erlang-questions] Setting maximum amount of data allocated by an Erlang node.
Mon Sep 7 08:00:46 CEST 2015
> On 7 sep 2015, at 03:23, Theepan <vasdeveloper@REDACTED> wrote:
> Hi Lukas,
> I presume that erts_alloc is a control layer on top of malloc/calloc/realloc or their variants to handle different types of allocations. The question is, if a limit is set -- of course, with very clear knowledge of what is being done -- can we expect relevant exception/error from the LIB/STDLIB/BIF functions?
From some, but far from all. When you run out of memory it is almost always a catastrophic failure resulting in an erlang vm crash.
>> On Mon, Sep 7, 2015 at 3:15 AM, Lukas Larsson <lukas@REDACTED> wrote:
>> Hello Akash,
>>> On Sat, Sep 5, 2015 at 1:53 AM, Akash Chowdhury <achowdhury918@REDACTED> wrote:
>>> b) for maximum amount of data allocated by an Erlang node
>> Yes it is possible since at least 17.0 to limit the amount of memory the VM uses on OSs with a good virtual memory management interface. You need to supply two memory allocator flags in combination: +MMscs <Limit in MB> +Musac false. You can read up on what they do in the erts_alloc manual.
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