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socket_manager: add feature to take over another server #150

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socket_manager: add feature to take over another server #150

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Commits on Sep 3, 2024

  1. socket_manager: add feature to take over another server 

    Another process can take over UDP/TCP sockets without downtime.

    server = ServerEngine::SocketManager::Server.take_over_another_server(path)

This starts a new server that has all UDP/TCP sockets of the
existing server.
It receives the sockets from the existing server and stops it
after starts a new server.

This may not be the primary use case assumed by ServerEngine, but
we need this feature to replace both the server and the workers
with a new process without downtime.
Currently, ServerEngine does not provide this feature for
network servers.

At the moment, I assume that the application side uses this
feature ad hoc, but, in the future, this could be used to support
live reload for entire network servers.

ref: fluent/fluentd#4622

Signed-off-by: Daijiro Fukuda <[email protected]>
    @daipom @ashie
    daipom authored and ashie committed Sep 3, 2024
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Commits on Oct 15, 2024

  1. socket_manager_spec: add tests 

    Signed-off-by: Shizuo Fujita <[email protected]>
    @Watson1978
    Watson1978 committed Oct 15, 2024
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