Re: [boost] [E] Re: Inter pod communication using shared memory

Hi all You should not store STL containers in shared memory. Shared memory pages may be mapped to different addresses in different processes. If the STL container uses pointers to nodes (like list, map etc. do), these pointers are only valid for processes that mapped the shared memory to the address. And it is not possible to always map the shared memory to the same address. You should use the containers from Boost.Interprocess, because they store address offsets instead of pointers == addresses. Best regards René Am Fr., 30. Aug. 2024 um 02:56 Uhr schrieb Murali Kishore via Boost < boost@lists.boost.org>:

Hi all, Adding to above question,

scenario details: if kubernetes pods are created in the same machine with enabling shared memory so that both pods can access this shared area. In this case, if we run one process in pod 1 and another process in pod2, and these processes are using boost interprocess to create/find class objects, STL containers.

I am able to create the above scenario and run 2 pods and verified class object sharing using boost interprocess library, want to check with you all if there are any risks in using this way w.r.t performance and stability (unexpected behaviour).

Are there any limitations/ design aspects that need to be taken care while using boost library ?

Regards, Murali Kishore

On Thu, Aug 29, 2024 at 3:55 PM Murali Bathina via Boost < boost@lists.boost.org> wrote:

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Yes Ion, like boost inter process, is it possible to use boost library for using shared memory between Kubernetes pods?

Regards, Murali

-----Original Message----- From: Boost On Behalf Of Ion Gaztañaga via Boost Sent: Wednesday, August 28, 2024 4:42 PM To: Murali Bathina via Boost Cc: Ion Gaztañaga Subject: [E] Re: [boost] Inter pod communication using shared memory

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El 28/08/2024 a las 11:15, Murali Bathina via Boost escribió:

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Hi all,

Is Boost supports inter pod communication using shared memory or other ways like boost interprocess communication. Looking inputs on this.

Regards, Murali

I don't fully understand your question. Are you are talking about Kubernetes pods? In this case any network communication stack will work and Boost has tools for that (Asio, Beast, etc.)

Best,

Ion

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-- Regards, Murali Kishore

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