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When a full message is received for a stream, MUX is responsible to set EOI flag. This was done through rcv_buf stream callback by checking if QCS HTX buffer contained the EOM flag. This is not correct for HTTP without body. In this case, QCS HTX buffer is never used. Only a local HTX buffer is used to transfer headers just as stream endpoint is created. As such, EOI is never transmitted to the upper layer. If the transfer occur without any issue, this does not seem to cause any problem. However, in case the transfer is aborted, the stream is never released which cause a memory leak and prevent the process soft-stop. To fix this, also check if EOM is put by application layer during headers conversion. If true, this is transferred through a new argument to qc_attach_sc() MUX function which is responsible to set the EOI flag. This issue was reproduced using h2load with hundred of connections. h2load is interrupted with a SIGINT which causes streams to never be closed on haproxy side. This should be backported up to 2.6. |
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| INSTALL | ||
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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)