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HAProxy - Load balancer
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Willy Tarreau 7764a57d32 BUG/MEDIUM: threads: cpu-map designating a single thread/process are ignored 
Since commit 81492c989 ("MINOR: threads: flatten the per-thread cpu-map"),
we don't keep the proc*thread matrix anymore to represent the full binding
possibilities, but only the proc and thread ones. The problem is that the
per-process binding is not the same for each thread and for the process,
and the proc[] array was assumed to store the per-proc first thread value
when doing this change. Worse, the logic present there tries to deal with
thread ranges and process ranges in a way which automatically exclused the
other possibility (since ranges cannot be used on both) but as such fails
to apply changes if neither the process nor the thread is expressed as a
range.

The real problem comes from the fact that specifying cpu-map 1/1 doesn't
yet reveal if the per-process mask or the per-thread mask needs to be
updated. In practice it's the thread one but then the current storage
doesn't allow to store the binding of the first thread of each other
process in nbproc>1 configurations.

When removing the proc*thread matrix, what ought to have been kept was
both the thread column for process 1 and the process line for threads 1,
but instead only the thread column was kept. This patch reintroduces the
storage of the configuration for the first thread of each process so that
it is again possible to store either the per-thread or per-process
configuration.

As a partial workaround for existing configurations, it is possible to
systematically indicate at least two processes or two threads at once
and map them by pairs or more so that at least two values are present
in the range. E.g :

  # set processes 1-4 to cpus 0-3 :

     cpu-map auto:1-4/1 0 1 2 3
  # or:
     cpu-map 1-2/1 0 1
     cpu-map 2-3/1 2 3

  # set threads 1-4 to cpus 0-3 :

     cpu-map auto:1/1-4 0 1 2 3
  # or :
     cpu-map 1/1-2 0 1
     cpu-map 3/3-4 2 3

This fix must be backported to 2.0.
2019-07-16 15:23:09 +02:00
.github/ISSUE_TEMPLATE DOC: add github issue templates 2019-01-17 22:53:55 +01:00
contrib DOC: contrib: spoa_server Add some hints for building spoa_server 2019-07-05 16:31:50 +02:00
doc MEDIUM: mworker-prog: Add user/group options to program section 2019-07-15 16:43:16 +02:00
ebtree CLEANUP: fix typos in comments in ebtree 2018-11-18 22:23:15 +01:00
examples CLEANUP: removed obsolete examples an move a few to better places 2019-06-15 21:25:06 +02:00
include BUG/MEDIUM: threads: cpu-map designating a single thread/process are ignored 2019-07-16 15:23:09 +02:00
reg-tests REGTESTS: checks: tcp-check connect to multiple ports 2019-07-16 10:20:52 +02:00
scripts CLEANUP: removed obsolete examples an move a few to better places 2019-06-15 21:25:06 +02:00
src BUG/MEDIUM: threads: cpu-map designating a single thread/process are ignored 2019-07-16 15:23:09 +02:00
tests CLEANUP: fix a misspell in tests/filltab25.c 2018-11-18 22:23:15 +01:00
.cirrus.yml BUILD: enable freebsd builds on cirrus-ci 2019-05-16 09:27:51 +02:00
.gitignore DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
.travis.yml BUILD: travis-ci: TFO and GETADDRINFO are now enabled by default 2019-06-15 23:24:47 +02:00
BRANCHES DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
CHANGELOG [RELEASE] Released version 2.1-dev0 2019-06-16 21:49:47 +02:00
CONTRIBUTING DOC: Fix typos in CONTRIBUTING 2019-06-15 21:25:06 +02:00
INSTALL DOC: this is a development branch again. 2019-06-17 13:35:23 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS DOC: wurfl: added point of contact in MAINTAINERS file 2019-04-23 11:00:23 +02:00
Makefile BUILD: makefile: do not rely on shell substitutions to determine git version 2019-06-22 08:28:32 +02:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
ROADMAP DOC: update the outdated ROADMAP file 2019-06-15 21:59:54 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.0.0 2019-06-16 20:00:26 +02:00
VERSION [RELEASE] Released version 2.1-dev0 2019-06-16 21:49:47 +02:00

README 

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)