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HAProxy - Load balancer
03bd3952a6
This flag is no longer needed now that it must always match the presence of a destination address on the backend conn_stream. Worse, before previous patch, if it were to be accidently removed while the address is present, it could result in a leak of that address since alloc_dst_address() would first be called to flush it. Its usage has a long history where addresses were stored in an area shared with the connection, but as this is no longer the case, there's no reason for putting this burden onto application-level code that should not focus on setting obscure flags. The only place where that made a small difference is in the dequeuing code in case of queue redistribution, because previously the code would first clear the flag, and only later when trying to deal with the queue, would release the address. It's not even certain whether there would exist a code path going to connect_server() without calling pendconn_dequeue() first (e.g. retries on queue timeout maybe?). Now the pendconn_dequeue() code will rely on SF_ASSIGNED to decide to clear and release the address, since that flag is always set while in a server's queue, and its clearance implies that we don't want to keep the address. At least it remains consistent and there's no more risk of leaking it. |
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The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)