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HAProxy - Load balancer
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Released version 3.5-dev1 with the following main changes :
- BUG/MEDIUM: check: Skip tcpcheck post-config for external checks
- BUG/MEDIUM: check: Ignore small-buffer option when starting an external check
- MINOR: check: Don't dump buffers state in check traces for external checks
- BUG/MEDIUM: server/checks: Support healtcheck keyword on default-server lines
- BUG/MEDIUM: mux_quic: prevent risk of infinite loop on recv
- OPTIM: mux_quic: remove QCS from recv_list on reset
- BUG/MINOR: mux_quic: do not interrupt recv on error/incomplete data
- BUG/MINOR: tcpcheck: Override external check if healthcheck section is set
- REGTESTS: checks: Add script for external healthchecks
- BUG/MEDIUM: regex: initialize the match array earlier during boot
- BUG/MEDIUM: threads: Fiw build when using no thread
- BUG/MEDIUM: xprt_qmux: implement ->get_ssl_sock_ctx() to get the SSL laye
- CLEANUP: sessions: simplify the sess_priv_conns pool name
- MINOR: pools: reject creation of pools containing invalid chars in their name
- BUG/MINOR: acl: report "ACL" not "map" in ACL ID lookup failures
- MINOR: memprof: make in_memprof a bitfield instead of a counter
- MINOR: memprof: be careful to account allocations only once
- BUG/MEDIUM: checks: Dequeue checks on purge
- MINOR: servers: Add a back-pointer to the server in srv_per_thread
- MEDIUM: servers: Move to a per-thread idle connection cleanup task
- REGTESTS: Fix log matching in healthcheck-section.vtc
- BUG/MINOR: quic: fix Initial length value in sent packets
- BUILD: servers: Fix build with -std=gnu89
- BUG/MEDIUM: acme: stuck ACME task when authz is already "valid"
- MINOR: acme: introduce acme_challenge_ready() for reuse outside the CLI
- MINOR: h3: extend trace verbosity
- MINOR: h3: trace HTTP headers on FE side
- MINOR: h3: trace HTTP headers on BE side
- BUILD: h3: fix compilation with USE_TRACE=0
- MINOR: lua: add REGISTER_HLUA_STATE_INIT() to register state init callbacks
- MEDIUM: lua: move longjmp annotation macros to hlua.h
- MINOR: acme/lua: implement ACME.challenge_ready() Lua function
- BUG/MEDIUM: ktls: defer enabling TLS ULP on a socket until connected
- MINOR: errors: add ha_diag_notice() to report diag-level notifications
- BUG/MINOR: cpu-topo: use ha_diag_notice() to report thread creations
- MINOR: acme: publish ACME_NEWCERT event via event_hdl
- MINOR: acme: publish ACME_DEPLOY event via event_hdl
- EXAMPLES: lua/acme: add a dns-01 handler for Gandi LiveDNS API
- DOC: acme: add mentions of lua features
- MINOR: tasks: Introduce __task_set_state_and_tid
- MINOR: tasks: Add __task_get_new_tid_field()
- MINOR: tasks: Introduce __task_get_current_owner
- MINOR: tasks: Use __task_get_current_owner() in task_kill.
- MINOR: tasks: Start using __task_set_state_and_tid()
- MEDIUM: tasks: Remove the per-thread group wait queue
- MINOR: tasks: Use __task_set_state_and_tid() in task_instant_wakeup()
- MINOR: tasks: Remove wq_lock and the per-thread group wait queues
- MEDIUM: tasks: Redispatch shared tasks when the thread is loaded
- BUG/MEDIUM: h3: Properly handle PUSH_PROMISE on backend connections
- BUG/MINOR: server: fix add server with consistent hash balancing
- MINOR: lua: export hlua_pusherror() and check_args()
- REORG: httpclient/lua: move the lua httpclient code to http_client.c
- MEDIUM: httpclient/lua: allow multiple requests from a single core.httpclient() instance
- MEDIUM: httpclient: set res.status to 0 upon SF_ERR_MASK
- DOC: httpclient: document status 0 on internal error
- DEBUG: stconn: Add a BUG_ON on shut flags when the endpoint is shut
- BUG/MINOR: http-ana: Remove a debugging memset on redirect
- BUG/MEDIUM: http-ana: Don't ignore L7 retry errors
- BUG/MINOR: mux-h1: Properly resolve file path for 'h1-case-adjust-file'
- BUG/MINOR: quic: fix rxbuf settings on backend side
- EXAMPLES: lua/acme: fix acme-gandi-livedns.lua configuration example
- BUG/MEDIUM: ssl: Don't free the early data buffer too early
- BUG/MINOR: hpack-tbl: add missing NULL check after hpack_dht_defrag()
- BUG/MEDIUM: mux_quic: fix freeze transfer after QCS rxbuf realign
- BUG/MEDIUM: http-act: Make a copy of the sample expr in (set/add)-headers-bin
- BUG/MEDIUM: mux-fcgi: fix uint16_t overflow in drl += drp
- OPTIM: mux-fcgi: Reorganise fcgi_conn structure to fill some holes
- BUG/MINOR: hq-interop: reject too big content
- MINOR: hq_interop: do not rely on stream layer for HTX stline encoding
- BUG/MINOR: hq-interop: prevent reset if missing content-length
- BUG/MEDIUM: hlua: Properly report EOS when http applet exits
- BUG/MINOR: hq-interop: support full demux buf on large response
- BUG/MINOR: hq-interop: support response buffer wrapping
- DOC: sched: Document the wait queue modifications
- DOC: lua: remove incorrect init tags
- BUG/MEDIUM: h3: increment unknown request payload length
- REGTESTS: quic: test H3 request without content-length
- DEBUG: cli: relax tid check in "debug dev task" for recent sched changes
- MINOR: debug: add "print" to "debug dev sched"
- BUG/MINOR: poller: fix wait time calculation that is always 1 extra ms
- BUILD: quic_pacing: add missing includes for api and activity in the file
- MINOR: task: move the profiling checks to the called functions not callers
- MINOR: task: add a new explicitly local tasklet wakeup function
- MINOR: task: make tasklet_wakeup() explicitly call _tasklet_wakeup_here()
- MINOR: task: make task_instant_wakeup() explicitly call _tasklet_wakeup_here()
- MEDIUM: task: make __tasklet_wakeup_on() only accept non-local threads
- MEDIUM: task: add a new flag TASK_RT to permit a task to skip the priority queue
- MINOR: debug: add "rt=1" to "debug dev task" to tune the RT flag
- BUG/MEDIUM: mux-fcgi: Truly drain outgoing HTX data when the stream is closed
- BUG/MEDIUM: mux-h2: Truly drain outgoing HTX data when the stream is closed
- BUG/MEDIUM: mux-spop: Truly drain outgoing data when the stream is closed
- BUG/MEDIUM: mux-quic: Drain the given amount of data in qcs_http_reset_buf()
- CLEANUP: task: remove duplicated code in __tasklet_wakeup_after()
- BUILD: task: silence a build warning with threads disabled
- MINOR: task: do not try to redistribute the WQ when single-threaded
- MEDIUM: task: add a new tasklet class for real-time: TL_RT
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HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
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)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.