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HAProxy - Load balancer
72a78e8290
On H3 DATA frame transfer from the client, some streams are not properly closed by the upper layer, despite all transfer operation completed. Data integrity is not impacted but this will prevent the stream timeout to fire and thus keep the owner session opened. In most cases, sessions are closed on QUIC idle timeout, but it may stay forever if a client emits PING frames at a regular interval to maintain it. This bug is caused by a missing EOI stream desc flag on certain condition in qc_rcv_buf(). To be triggered, we have to use the optimization when conn-stream buffer is empty and can be swapped with qcs buffer. The problem is that it will skip the function body for default copy but also a condition to check if EOI must be set. Thus this bug does not happens for every H3 post requets : it requires that conn-stream buffer is empty on last qc_rcv_buf() invocation. This was reproduced more frequently when using ngtcp2 client with one or multiple streams : $ ngtcp2-client -m POST -d ~/infra/html/10K 127.0.0.1 20443 \ http://127.0.0.1:20443/post This may fix at least partially github issue #1801. This must be backported up to 2.6. |
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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)