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HAProxy - Load balancer
4ae29be18c
This may happen when the initilization of a new QUIC conn fails with qc_new_conn() when receiving an Initial paquet. This is done after having allocated a CID with new_quic_cid() called by quic_rx_pkt_retrieve_conn() which stays in the listener connections tree without a QUIC connection attached to. Then when the listener receives another Initial packet for the same CID, quic_rx_pkt_retrieve_conn() returns NULL again (no QUIC connection) but with an thread ID already bound to the connection, leading the datagram to be requeued in the same datagram handler thread queue. And so on. To fix this, the connection is created after having created the connection ID. If this fails, the connection is deallocated. During the race condition, when two different threads handle two datagrams for the same connection, in addition to releasing the newer created connection ID, the newer QUIC connection must also be released. Must be backported as far as 2.7. |
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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)