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Docs will be ready in 0.16 release

This commit is contained in:
Feng 2016-01-24 17:47:18 +08:00
parent 548c5fe5d0
commit 87fe788ce2
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36
docs/Catalogs
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@ -1,36 +0,0 @@
ReadMe
Overview
C1000K
Goals
Features
Plugins
Supports
Twitter
QuickStart
Getting Started
Overview
Goals
Features
Plugins
Supports
Twitter
FAQ
UserGuide
Installation
Configuration
Administration
Cluster
PluginGuide
Plugin Guide
Plugins
DesignGuide
Architecture
TuningGuide

177
docs/Makefile
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# Makefile for Sphinx documentation
#
# You can set these variables from the command line.
SPHINXOPTS =
SPHINXBUILD = sphinx-build
PAPER =
BUILDDIR = build
# User-friendly check for sphinx-build
ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
endif
# Internal variables.
PAPEROPT_a4 = -D latex_paper_size=a4
PAPEROPT_letter = -D latex_paper_size=letter
ALLSPHINXOPTS = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
# the i18n builder cannot share the environment and doctrees with the others
I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
help:
@echo "Please use \`make <target>' where <target> is one of"
@echo " html to make standalone HTML files"
@echo " dirhtml to make HTML files named index.html in directories"
@echo " singlehtml to make a single large HTML file"
@echo " pickle to make pickle files"
@echo " json to make JSON files"
@echo " htmlhelp to make HTML files and a HTML help project"
@echo " qthelp to make HTML files and a qthelp project"
@echo " devhelp to make HTML files and a Devhelp project"
@echo " epub to make an epub"
@echo " latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
@echo " latexpdf to make LaTeX files and run them through pdflatex"
@echo " latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
@echo " text to make text files"
@echo " man to make manual pages"
@echo " texinfo to make Texinfo files"
@echo " info to make Texinfo files and run them through makeinfo"
@echo " gettext to make PO message catalogs"
@echo " changes to make an overview of all changed/added/deprecated items"
@echo " xml to make Docutils-native XML files"
@echo " pseudoxml to make pseudoxml-XML files for display purposes"
@echo " linkcheck to check all external links for integrity"
@echo " doctest to run all doctests embedded in the documentation (if enabled)"
clean:
rm -rf $(BUILDDIR)/*
html:
$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
@echo
@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
dirhtml:
$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
@echo
@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
singlehtml:
$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
@echo
@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
pickle:
$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
@echo
@echo "Build finished; now you can process the pickle files."
json:
$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
@echo
@echo "Build finished; now you can process the JSON files."
htmlhelp:
$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
@echo
@echo "Build finished; now you can run HTML Help Workshop with the" \
".hhp project file in $(BUILDDIR)/htmlhelp."
qthelp:
$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
@echo
@echo "Build finished; now you can run "qcollectiongenerator" with the" \
".qhcp project file in $(BUILDDIR)/qthelp, like this:"
@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/ErlangMQTTBroker.qhcp"
@echo "To view the help file:"
@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/ErlangMQTTBroker.qhc"
devhelp:
$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
@echo
@echo "Build finished."
@echo "To view the help file:"
@echo "# mkdir -p $$HOME/.local/share/devhelp/ErlangMQTTBroker"
@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/ErlangMQTTBroker"
@echo "# devhelp"
epub:
$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
@echo
@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
latex:
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
@echo
@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
@echo "Run \`make' in that directory to run these through (pdf)latex" \
"(use \`make latexpdf' here to do that automatically)."
latexpdf:
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
@echo "Running LaTeX files through pdflatex..."
$(MAKE) -C $(BUILDDIR)/latex all-pdf
@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
latexpdfja:
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
@echo "Running LaTeX files through platex and dvipdfmx..."
$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
text:
$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
@echo
@echo "Build finished. The text files are in $(BUILDDIR)/text."
man:
$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
@echo
@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
texinfo:
$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
@echo
@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
@echo "Run \`make' in that directory to run these through makeinfo" \
"(use \`make info' here to do that automatically)."
info:
$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
@echo "Running Texinfo files through makeinfo..."
make -C $(BUILDDIR)/texinfo info
@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
gettext:
$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
@echo
@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
changes:
$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
@echo
@echo "The overview file is in $(BUILDDIR)/changes."
linkcheck:
$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
@echo
@echo "Link check complete; look for any errors in the above output " \
"or in $(BUILDDIR)/linkcheck/output.txt."
doctest:
$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
@echo "Testing of doctests in the sources finished, look at the " \
"results in $(BUILDDIR)/doctest/output.txt."
xml:
$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
@echo
@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
pseudoxml:
$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
@echo
@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."

3
docs/README.md
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@ -1,3 +0,0 @@
Documents for eMQTT Projects

242
docs/make.bat
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@ -1,242 +0,0 @@
@ECHO OFF
REM Command file for Sphinx documentation
if "%SPHINXBUILD%" == "" (
set SPHINXBUILD=sphinx-build
)
set BUILDDIR=build
set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% source
set I18NSPHINXOPTS=%SPHINXOPTS% source
if NOT "%PAPER%" == "" (
set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
set I18NSPHINXOPTS=-D latex_paper_size=%PAPER% %I18NSPHINXOPTS%
)
if "%1" == "" goto help
if "%1" == "help" (
:help
echo.Please use `make ^<target^>` where ^<target^> is one of
echo. html to make standalone HTML files
echo. dirhtml to make HTML files named index.html in directories
echo. singlehtml to make a single large HTML file
echo. pickle to make pickle files
echo. json to make JSON files
echo. htmlhelp to make HTML files and a HTML help project
echo. qthelp to make HTML files and a qthelp project
echo. devhelp to make HTML files and a Devhelp project
echo. epub to make an epub
echo. latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter
echo. text to make text files
echo. man to make manual pages
echo. texinfo to make Texinfo files
echo. gettext to make PO message catalogs
echo. changes to make an overview over all changed/added/deprecated items
echo. xml to make Docutils-native XML files
echo. pseudoxml to make pseudoxml-XML files for display purposes
echo. linkcheck to check all external links for integrity
echo. doctest to run all doctests embedded in the documentation if enabled
goto end
)
if "%1" == "clean" (
for /d %%i in (%BUILDDIR%\*) do rmdir /q /s %%i
del /q /s %BUILDDIR%\*
goto end
)
%SPHINXBUILD% 2> nul
if errorlevel 9009 (
echo.
echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
echo.installed, then set the SPHINXBUILD environment variable to point
echo.to the full path of the 'sphinx-build' executable. Alternatively you
echo.may add the Sphinx directory to PATH.
echo.
echo.If you don't have Sphinx installed, grab it from
echo.http://sphinx-doc.org/
exit /b 1
)
if "%1" == "html" (
%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%/html
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The HTML pages are in %BUILDDIR%/html.
goto end
)
if "%1" == "dirhtml" (
%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The HTML pages are in %BUILDDIR%/dirhtml.
goto end
)
if "%1" == "singlehtml" (
%SPHINXBUILD% -b singlehtml %ALLSPHINXOPTS% %BUILDDIR%/singlehtml
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The HTML pages are in %BUILDDIR%/singlehtml.
goto end
)
if "%1" == "pickle" (
%SPHINXBUILD% -b pickle %ALLSPHINXOPTS% %BUILDDIR%/pickle
if errorlevel 1 exit /b 1
echo.
echo.Build finished; now you can process the pickle files.
goto end
)
if "%1" == "json" (
%SPHINXBUILD% -b json %ALLSPHINXOPTS% %BUILDDIR%/json
if errorlevel 1 exit /b 1
echo.
echo.Build finished; now you can process the JSON files.
goto end
)
if "%1" == "htmlhelp" (
%SPHINXBUILD% -b htmlhelp %ALLSPHINXOPTS% %BUILDDIR%/htmlhelp
if errorlevel 1 exit /b 1
echo.
echo.Build finished; now you can run HTML Help Workshop with the ^
.hhp project file in %BUILDDIR%/htmlhelp.
goto end
)
if "%1" == "qthelp" (
%SPHINXBUILD% -b qthelp %ALLSPHINXOPTS% %BUILDDIR%/qthelp
if errorlevel 1 exit /b 1
echo.
echo.Build finished; now you can run "qcollectiongenerator" with the ^
.qhcp project file in %BUILDDIR%/qthelp, like this:
echo.^> qcollectiongenerator %BUILDDIR%\qthelp\ErlangMQTTBroker.qhcp
echo.To view the help file:
echo.^> assistant -collectionFile %BUILDDIR%\qthelp\ErlangMQTTBroker.ghc
goto end
)
if "%1" == "devhelp" (
%SPHINXBUILD% -b devhelp %ALLSPHINXOPTS% %BUILDDIR%/devhelp
if errorlevel 1 exit /b 1
echo.
echo.Build finished.
goto end
)
if "%1" == "epub" (
%SPHINXBUILD% -b epub %ALLSPHINXOPTS% %BUILDDIR%/epub
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The epub file is in %BUILDDIR%/epub.
goto end
)
if "%1" == "latex" (
%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
if errorlevel 1 exit /b 1
echo.
echo.Build finished; the LaTeX files are in %BUILDDIR%/latex.
goto end
)
if "%1" == "latexpdf" (
%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
cd %BUILDDIR%/latex
make all-pdf
cd %BUILDDIR%/..
echo.
echo.Build finished; the PDF files are in %BUILDDIR%/latex.
goto end
)
if "%1" == "latexpdfja" (
%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
cd %BUILDDIR%/latex
make all-pdf-ja
cd %BUILDDIR%/..
echo.
echo.Build finished; the PDF files are in %BUILDDIR%/latex.
goto end
)
if "%1" == "text" (
%SPHINXBUILD% -b text %ALLSPHINXOPTS% %BUILDDIR%/text
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The text files are in %BUILDDIR%/text.
goto end
)
if "%1" == "man" (
%SPHINXBUILD% -b man %ALLSPHINXOPTS% %BUILDDIR%/man
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The manual pages are in %BUILDDIR%/man.
goto end
)
if "%1" == "texinfo" (
%SPHINXBUILD% -b texinfo %ALLSPHINXOPTS% %BUILDDIR%/texinfo
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The Texinfo files are in %BUILDDIR%/texinfo.
goto end
)
if "%1" == "gettext" (
%SPHINXBUILD% -b gettext %I18NSPHINXOPTS% %BUILDDIR%/locale
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The message catalogs are in %BUILDDIR%/locale.
goto end
)
if "%1" == "changes" (
%SPHINXBUILD% -b changes %ALLSPHINXOPTS% %BUILDDIR%/changes
if errorlevel 1 exit /b 1
echo.
echo.The overview file is in %BUILDDIR%/changes.
goto end
)
if "%1" == "linkcheck" (
%SPHINXBUILD% -b linkcheck %ALLSPHINXOPTS% %BUILDDIR%/linkcheck
if errorlevel 1 exit /b 1
echo.
echo.Link check complete; look for any errors in the above output ^
or in %BUILDDIR%/linkcheck/output.txt.
goto end
)
if "%1" == "doctest" (
%SPHINXBUILD% -b doctest %ALLSPHINXOPTS% %BUILDDIR%/doctest
if errorlevel 1 exit /b 1
echo.
echo.Testing of doctests in the sources finished, look at the ^
results in %BUILDDIR%/doctest/output.txt.
goto end
)
if "%1" == "xml" (
%SPHINXBUILD% -b xml %ALLSPHINXOPTS% %BUILDDIR%/xml
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The XML files are in %BUILDDIR%/xml.
goto end
)
if "%1" == "pseudoxml" (
%SPHINXBUILD% -b pseudoxml %ALLSPHINXOPTS% %BUILDDIR%/pseudoxml
if errorlevel 1 exit /b 1
echo.
echo.Build finished. The pseudo-XML files are in %BUILDDIR%/pseudoxml.
goto end
)
:end

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Chat
====

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Applications
============
.. toctree::
:maxdepth: 2
push
chat

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Push
====

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docs/source/conf.py
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# -*- coding: utf-8 -*-
#
# Erlang MQTT Broker documentation build configuration file, created by
# sphinx-quickstart on Tue Jan 12 22:54:45 2016.
#
# This file is execfile()d with the current directory set to its
# containing dir.
#
# Note that not all possible configuration values are present in this
# autogenerated file.
#
# All configuration values have a default; values that are commented out
# serve to show the default.
import sys
import os
from recommonmark.parser import CommonMarkParser
# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
#sys.path.insert(0, os.path.abspath('.'))
# -- General configuration ------------------------------------------------
# If your documentation needs a minimal Sphinx version, state it here.
#needs_sphinx = '1.0'
# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
'sphinx.ext.autodoc',
'sphinx.ext.doctest',
'sphinx.ext.intersphinx',
'sphinx.ext.todo',
'sphinx.ext.coverage',
'sphinx.ext.ifconfig',
]
# Add any paths that contain templates here, relative to this directory.
templates_path = ['_templates']
source_parsers = {'.md': CommonMarkParser}
# The suffix of source filenames.
source_suffix = '.rst'
# The encoding of source files.
#source_encoding = 'utf-8-sig'
# The master toctree document.
master_doc = 'index'
# General information about the project.
project = u'Erlang MQTT Broker'
copyright = u'2016, Feng Lee'
# The version info for the project you're documenting, acts as replacement for
# |version| and |release|, also used in various other places throughout the
# built documents.
#
# The short X.Y version.
version = '0.15'
# The full version, including alpha/beta/rc tags.
release = '0.15.0'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#language = None
# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
#today = ''
# Else, today_fmt is used as the format for a strftime call.
#today_fmt = '%B %d, %Y'
# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
exclude_patterns = []
# The reST default role (used for this markup: `text`) to use for all
# documents.
#default_role = None
# If true, '()' will be appended to :func: etc. cross-reference text.
#add_function_parentheses = True
# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
#add_module_names = True
# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
#show_authors = False
# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'sphinx'
# A list of ignored prefixes for module index sorting.
#modindex_common_prefix = []
# If true, keep warnings as "system message" paragraphs in the built documents.
#keep_warnings = False
# -- Options for HTML output ----------------------------------------------
# The theme to use for HTML and HTML Help pages. See the documentation for
# a list of builtin themes.
html_theme = 'default'
# Theme options are theme-specific and customize the look and feel of a theme
# further. For a list of options available for each theme, see the
# documentation.
#html_theme_options = {}
# Add any paths that contain custom themes here, relative to this directory.
#html_theme_path = []
# The name for this set of Sphinx documents. If None, it defaults to
# "<project> v<release> documentation".
#html_title = None
# A shorter title for the navigation bar. Default is the same as html_title.
#html_short_title = None
# The name of an image file (relative to this directory) to place at the top
# of the sidebar.
#html_logo = None
# The name of an image file (within the static path) to use as favicon of the
# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
#html_favicon = None
# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
html_static_path = ['_static']
# Add any extra paths that contain custom files (such as robots.txt or
# .htaccess) here, relative to this directory. These files are copied
# directly to the root of the documentation.
#html_extra_path = []
# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
# using the given strftime format.
#html_last_updated_fmt = '%b %d, %Y'
# If true, SmartyPants will be used to convert quotes and dashes to
# typographically correct entities.
#html_use_smartypants = True
# Custom sidebar templates, maps document names to template names.
#html_sidebars = {}
# Additional templates that should be rendered to pages, maps page names to
# template names.
#html_additional_pages = {}
# If false, no module index is generated.
#html_domain_indices = True
# If false, no index is generated.
#html_use_index = True
# If true, the index is split into individual pages for each letter.
#html_split_index = False
# If true, links to the reST sources are added to the pages.
#html_show_sourcelink = True
# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
#html_show_sphinx = True
# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
#html_show_copyright = True
# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it. The value of this option must be the
# base URL from which the finished HTML is served.
#html_use_opensearch = ''
# This is the file name suffix for HTML files (e.g. ".xhtml").
#html_file_suffix = None
# Output file base name for HTML help builder.
htmlhelp_basename = 'ErlangMQTTBrokerdoc'
# -- Options for LaTeX output ---------------------------------------------
latex_elements = {
# The paper size ('letterpaper' or 'a4paper').
#'papersize': 'letterpaper',
# The font size ('10pt', '11pt' or '12pt').
#'pointsize': '10pt',
# Additional stuff for the LaTeX preamble.
#'preamble': '',
}
# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title,
# author, documentclass [howto, manual, or own class]).
latex_documents = [
('index', 'ErlangMQTTBroker.tex', u'Erlang MQTT Broker Documentation',
u'Feng Lee', 'manual'),
]
# The name of an image file (relative to this directory) to place at the top of
# the title page.
#latex_logo = None
# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
#latex_use_parts = False
# If true, show page references after internal links.
#latex_show_pagerefs = False
# If true, show URL addresses after external links.
#latex_show_urls = False
# Documents to append as an appendix to all manuals.
#latex_appendices = []
# If false, no module index is generated.
#latex_domain_indices = True
# -- Options for manual page output ---------------------------------------
# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [
('index', 'erlangmqttbroker', u'Erlang MQTT Broker Documentation',
[u'Feng Lee'], 1)
]
# If true, show URL addresses after external links.
#man_show_urls = False
# -- Options for Texinfo output -------------------------------------------
# Grouping the document tree into Texinfo files. List of tuples
# (source start file, target name, title, author,
# dir menu entry, description, category)
texinfo_documents = [
('index', 'ErlangMQTTBroker', u'Erlang MQTT Broker Documentation',
u'Feng Lee', 'ErlangMQTTBroker', 'One line description of project.',
'Miscellaneous'),
]
# Documents to append as an appendix to all manuals.
#texinfo_appendices = []
# If false, no module index is generated.
#texinfo_domain_indices = True
# How to display URL addresses: 'footnote', 'no', or 'inline'.
#texinfo_show_urls = 'footnote'
# If true, do not generate a @detailmenu in the "Top" node's menu.
#texinfo_no_detailmenu = False
# -- Options for Epub output ----------------------------------------------
# Bibliographic Dublin Core info.
epub_title = u'Erlang MQTT Broker'
epub_author = u'Feng Lee'
epub_publisher = u'Feng Lee'
epub_copyright = u'2016, Feng Lee'
# The basename for the epub file. It defaults to the project name.
#epub_basename = u'Erlang MQTT Broker'
# The HTML theme for the epub output. Since the default themes are not optimized
# for small screen space, using the same theme for HTML and epub output is
# usually not wise. This defaults to 'epub', a theme designed to save visual
# space.
#epub_theme = 'epub'
# The language of the text. It defaults to the language option
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#epub_language = ''
# The scheme of the identifier. Typical schemes are ISBN or URL.
#epub_scheme = ''
# The unique identifier of the text. This can be a ISBN number
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#epub_identifier = ''
# A unique identification for the text.
#epub_uid = ''
# A tuple containing the cover image and cover page html template filenames.
#epub_cover = ()
# A sequence of (type, uri, title) tuples for the guide element of content.opf.
#epub_guide = ()
# HTML files that should be inserted before the pages created by sphinx.
# The format is a list of tuples containing the path and title.
#epub_pre_files = []
# HTML files shat should be inserted after the pages created by sphinx.
# The format is a list of tuples containing the path and title.
#epub_post_files = []
# A list of files that should not be packed into the epub file.
epub_exclude_files = ['search.html']
# The depth of the table of contents in toc.ncx.
#epub_tocdepth = 3
# Allow duplicate toc entries.
#epub_tocdup = True
# Choose between 'default' and 'includehidden'.
#epub_tocscope = 'default'
# Fix unsupported image types using the PIL.
#epub_fix_images = False
# Scale large images.
#epub_max_image_width = 0
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#epub_show_urls = 'inline'
# If false, no index is generated.
#epub_use_index = True
# Example configuration for intersphinx: refer to the Python standard library.
intersphinx_mapping = {'http://docs.python.org/': None}

55
docs/source/design/ClientSession.md
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## Transient Client/Session Sequence1
```
Client1->SM: {start_session, {true, ClientId, self()}}
SM-->Session: {destory, ClientId}
Session-->Session: {shutdown, destroy}
Session-->Client2: exit({shutdown, destroy})
Client2-->CM: {'DOWN', MRef, process, Pid, Reason}
SM-->Client1: {ok, SessPid}
Client1-->CM: {register, Client1}
```
![Transient Client/Session Sequence1](TransientSessionSeq1.png)
## Transient Client/Session Sequence2
```
Client1->SM: {start_session, {true, ClientId, self()}}
SM-->Session: {destory, ClientId}
Session-->Session: {shutdown, destroy}
SM-->Client1: {ok, SessPid}
Client1-->CM: {register, Client1}
Session-->Client2: exit({shutdown, destroy})
Client2-->CM: {'DOWN', MRef, process, Pid, Reason}
```
![Transient Client/Session Sequence2](TransientSessionSeq2.png)
## Persistent Client/Session Sequence1
```
Client1->SM: {start_session, {true, ClientId, self()}}
SM-->Session: {resume, ClientId, ClientPid}
Session-->Client2: {shutdown, conflict, {ClientId, Pid}}
Client2-->CM: {unregister, ClientId, self()}
SM-->Client1: {ok, SessPid}
Client1-->CM: {register, Client1}
```
![Persistent Client/Session Sequence1](PersistentSessionSeq1.png)
## Persistent Client/Session Sequence2
```
Client1->SM: {start_session, {true, ClientId, self()}}
SM-->Session: {resume, ClientId, ClientPid}
SM-->Client1: {ok, SessPid}
Client1-->CM: {register, Client1}
Session-->Client2: {shutdown, conflict, {ClientId, Pid}}
Client2-->CM: {unregister, ClientId, self()}
```
![Persistent Client/Session Sequence2](PersistentSessionSeq2.png)

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Architecture
===========
Philosophy
----------
Focuse on scalable, stable transport and router.
Control plane and Flow plane.
Multiple Backends

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Clustering
==========

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GUID
====
Each QoS1/2 MQTT message is identified by a 128 bits, k-ordered GUID(global unique ID).
Structure
---------
::
--------------------------------------------------------
| Timestamp | NodeID + PID | Sequence |
|<------- 64bits ------->|<--- 48bits --->|<- 16bits ->|
--------------------------------------------------------
1. Timestamp: erlang:system_time if Erlang >= R18, otherwise os:timestamp
2. NodeId: encode node() to 2 bytes integer
3. Pid: encode pid to 4 bytes integer
4. Sequence: 2 bytes sequence in one process

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Design Guide
------------
.. toctree::
architecture
clustering
pubsub
route
qos
pool
guid
metrics
stats

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Metrics
=======

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Pool
====

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PubSub
======

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QoS
===
PacketId
MessageId
QoS0
QoS1
QoS2

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Route
=====
Topic Trie
Topic -> Node1, Node2, Node3, ...
Topic -> Pid1, Pid2, Pid3, ...

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Statistics
==========

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Backends
========

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Hooks
=====

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Developer Guide
---------------
.. toctree::
modules
hooks
plugins

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Modules
=======

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Plugins
=======

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.. Erlang MQTT Broker documentation master file, created by
sphinx-quickstart on Tue Jan 12 22:54:45 2016.
You can adapt this file completely to your liking, but it should at least
contain the root `toctree` directive.
Welcome to Erlang MQTT Broker's documentation!
==============================================
Overview
--------
TODO: emqttd is a massively scalable and clusterable MQTT V3.1/V3.1.1 broker written in Erlang/OTP. emqttd support both MQTT V3.1/V3.1.1 protocol specification with extended features.
Features
--------
* Feature1
* Feature2
QuickStart
----------
``hahal``
Contents
--------
.. _get-started:
.. toctree::
:maxdepth: 2
:caption: Getting Started
intro/overview
intro/quick_started
intro/getting_started
.. _user-guide:
.. toctree::
:maxdepth: 2
user/index
.. _dev-guide:
.. toctree::
:maxdepth: 2
dev/index
.. _tune-guide:
.. toctree::
:maxdepth: 2
tune/index
.. _design-guide:
.. toctree::
:maxdepth: 2
design/index
.. _apps-guide:
.. toctree::
:maxdepth: 2
apps/index
Supports
----------
* Feature1
* Feature2

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Featrues
========
* Full MQTT V3.1/V3.1.1 protocol specification support
* QoS0, QoS1, QoS2 Publish and Subscribe
* Session Management and Offline Messages
* Retained Messages Support
* Last Will Message Support
* TCP/SSL Connection Support
* MQTT Over Websocket(SSL) Support
* HTTP Publish API Support
* .. _$SYS/brokers/#: https://github.com/emqtt/emqtt/wiki/$SYS-Topics-of-Broker Support
* Client Authentication with clientId, ipaddress
* Client Authentication with username, password.
* Client ACL control with ipaddress, clientid, username.
* Cluster brokers on several servers.
* Bridge brokers locally or remotely
* 500K+ concurrent clients connections per server
* Extensible architecture with plugin support
* Passed eclipse paho interoperability tests

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Getting Started
---------------
.. toctree::
overview
features

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Overview
========
emqttd is a massively scalable and clusterable MQTT V3.1/V3.1.1 broker written in Erlang/OTP. emqttd support both MQTT V3.1/V3.1.1 protocol specification with extended features.
emqttd could connect Sensor, Mobile, Web Browser and Application Server with asynchronous PUB/SUB messsages.
.. image:: ../_images/emqttd.png
Philosophy
----------
Focuse on scalable connection layer and message router layer.
Goals
-----
TODO:...
emqttd is aimed to provide a solid, enterprise grade, extensible open-source MQTT broker for IoT(M2M) applications that need to support ten millions of concurrent MQTT clients.
* Easy to install
* Massively scalable
* Easy to extend
* Solid stable

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Download and Install
=====================
Download binary packeges for linux, mac and freebsd from http://emqtt.io/downloads
::
tar xvf emqttd-ubuntu64-0.7.0-alpha.tgz && cd emqttd
# start console
./bin/emqttd console
# start as daemon
./bin/emqttd start
# check status
./bin/emqttd_ctl status
# stop
./bin/emqttd stop
Build from Source
==================
::
git clone https://github.com/emqtt/emqttd.git
cd emqttd && make && make dist

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.. toctree::
intro

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MQTT Introduce
==============

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0.13.0 Benchmark (2015-11-08)
=============================
Benchmark with the [emqtt_benchmark](https://github.com/emqtt/emqtt_benchmark) tool.
Server: 8 Core, 32G Memory CentOS6.
etc/vm.args
-----------
::
## max process numbers
+P 1000000
## Sets the maximum number of simultaneously existing ports for this system
+Q 409600
## max atom number
## +t
## Set the distribution buffer busy limit (dist_buf_busy_limit) in kilobytes.
## Valid range is 1-2097151. Default is 1024.
## +zdbbl 8192
##-------------------------------------------------------------------------
## Env
##-------------------------------------------------------------------------
## Increase number of concurrent ports/sockets, deprecated in R17
-env ERL_MAX_PORTS 409600
-env ERTS_MAX_PORTS 409600
250K Subscribers on five nodes
------------------------------
Create 50K connections on each node and subscribe test/%i topics::
./emqtt_bench_sub -h server -p 1883 -c 50000 -i 5 -t test/%i -q 1
Publish 4K msg/sec on server
------------------------------
Publish qos1 messages at the rate of 4K(msg/sec) on the server::
./emqtt_bench_pub -h localhost -c 40 -i 10 -I 10 -t test/%i -q 1
Each node will receive 4k msg/sec.
Benchmark Result
----------------
250K Connections,
50K Topics,
250K Subscribers,
4K Qos1 Messages/Sec In,
20K Qos1 Messages/Sec Out,
12M+(bps) In, 56M+(bps) Out Traffic
Consumed about 3.1G memory and 400+ CPU.
./bin/emqttd_ctl broker
-----------------------
sysdescr : Erlang MQTT Broker
version : 0.13.0
uptime : 20 minutes, 25 seconds
datetime : 2015-11-08 10:38:30
./bin/emqttd_ctl broker stats
-----------------------
```
clients/count : 250040
clients/max : 250040
queues/count : 0
queues/max : 0
retained/count : 2
retained/max : 2
sessions/count : 0
sessions/max : 0
subscribers/count : 250000
subscribers/max : 250000
topics/count : 50050
topics/max : 50050
```
./bin/emqttd_ctl listeners
-----------------------
```
listener on http:8083
acceptors : 4
max_clients : 64
current_clients : 0
shutdown_count : []
listener on mqtts:8883
acceptors : 4
max_clients : 512
current_clients : 0
shutdown_count : []
listener on mqtt:1883
acceptors : 64
max_clients : 1000000
current_clients : 250040
shutdown_count : []
listener on http:18083
acceptors : 4
max_clients : 512
current_clients : 0
shutdown_count : []
```
./bin/emqttd_ctl vm
-----------------------
```
cpu/load1 : 13.44
cpu/load5 : 10.43
cpu/load15 : 5.98
memory/total : 2710277048
memory/processes : 1420519328
memory/processes_used : 1419564424
memory/system : 1289757720
memory/atom : 512601
memory/atom_used : 486464
memory/binary : 380872488
memory/code : 13077799
memory/ets : 408483440
process/limit : 1048576
process/count : 500353
io/max_fds : 500000
io/active_fds : 75
```
./bin/emqttd_ctl recon node_stats
---------------------------------
```
{[{process_count,500353},
{run_queue,41},
{error_logger_queue_len,0},
{memory_total,2698242896},
{memory_procs,1408734784},
{memory_atoms,486706},
{memory_bin,380825008},
{memory_ets,408483456}],
[{bytes_in,256851},
{bytes_out,1202095},
{gc_count,24423},
{gc_words_reclaimed,4092612},
{reductions,1850034},
{scheduler_usage,[{1,0.46640942781698586},
{2,0.5293768498814092},
{3,0.441425019999723},
{4,0.45550895378436373},
{5,0.45318168320081786},
{6,0.4627325387117833},
{7,0.5144161001107628},
{8,0.46406643808409137}]}]}
```

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etc/app.config for C1000K
=========================
::
{mqtt, 1883, [
%% Size of acceptor pool
{acceptors, 64},
%% Maximum number of concurrent clients
{max_clients, 1000000},
%% Socket Access Control
{access, [{allow, all}]},
%% Connection Options
{connopts, [
%% Rate Limit. Format is 'burst, rate', Unit is KB/Sec
%% {rate_limit, "100,10"} %% 100K burst, 10K rate
]},
%% Socket Options
{sockopts, [
%Tune buffer if hight thoughtput
%{recbuf, 4096},
%{sndbuf, 4096},
%{buffer, 4096},
%{nodelay, true},
{backlog, 1024}
]}
]},

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etc/vm.args for C1000K
======================
::
## 12 threads/core.
+A 64
## Max process numbers > connections * 2
## 2M
+P 2097152
## Sets the maximum number of simultaneously existing ports for this system
## 1M
+Q 1048576
## Increase number of concurrent ports/sockets, deprecated in R17
-env ERL_MAX_PORTS 1048576
-env ERTS_MAX_PORTS 1048576
## Mnesia and SSL will create temporary ets tables
## 16K
-env ERL_MAX_ETS_TABLES 16384

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Tune Guide
----------
.. toctree::
:maxdepth: 1
linux_kernel_tuning
etc_vm_args
etc_app_config
benchmark_0.13.0

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Linux Kernel Tuning for C1000K concurrent connections::
# system-wide limit on max opened files for all processes
# sysctl -n fs.nr_open
# 1M
sysctl -w fs.file-max=1048576
sysctl -w fs.nr_open=1048576
ulimit -n 1048576
# Increase number of incoming connections
net.core.somaxconn = 65536
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
sysctl -w net.ipv4.tcp_rmem='1024 4096 16384'
sysctl -w net.ipv4.tcp_wmem='1024 4096 16384'
sysctl -w net.core.rmem_max=16384
sysctl -w net.core.wmem_max=16384
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.core.rmem_default = 16777216
net.core.wmem_default = 16777216
net.core.optmem_max = 2048000
net.core.netdev_max_backlog = 50000
net.ipv4.tcp_rmem = 4096 4096 16777216
net.ipv4.tcp_wmem = 4096 4096 16777216
net.ipv4.tcp_max_syn_backlog = 30000
net.ipv4.tcp_max_tw_buckets = 2000000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_fin_timeout = 10
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.tcp_slow_start_after_idle = 0
net.ipv4.ip_local_port_range = 8000 65535
net.netfilter.nf_conntrack_max = 1000000
net.netfilter.nf_conntrack_tcp_timeout_time_wait = 30
vm.min_free_kbytes = 65536
vm.swappiness = 0
vm.overcommit_memory = 1
/etc/sysctl.conf
----------------
::
fs.file-max = 1048576
/etc/security/limits.conf
-------------------------
::
* soft nofile 1048576
* hard nofile 1048576
## Kernel/Network Tunings from @galvezlj
Server side:
```
fs.file-max = 1000000
net.core.somaxconn = 65536
net.ipv4.ip_local_port_range = 500 65535
net.nf_conntrack_max = 1000000
net.netfilter.nf_conntrack_max = 1000000
net.ipv4.tcp_rmem = 4096 4096 16777216
net.ipv4.tcp_wmem = 4096 4096 16777216
```
Client side:
```
sysctl -w net.ipv4.ip_local_port_range="500 65535"
echo 1000000 > /proc/sys/fs/nr_open
```
## Kernel/Network Tunings from my benchmark server
```
fs.file-max = 1000000
net.core.somaxconn = 65536
net.core.wmem_max = 124928
net.core.rmem_max = 124928
net.core.wmem_default = 124928
net.core.rmem_default = 124928
net.core.dev_weight = 64
net.core.netdev_max_backlog = 1000
net.core.message_cost = 5
net.core.message_burst = 10
net.core.optmem_max = 20480
net.core.busy_poll = 0
net.core.busy_read = 0
net.core.netdev_budget = 300
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_sack = 1
net.ipv4.tcp_retrans_collapse = 1
net.ipv4.ip_default_ttl = 64
net.ipv4.tcp_syn_retries = 5
net.ipv4.tcp_synack_retries = 5
net.ipv4.tcp_max_orphans = 262144
net.ipv4.tcp_max_tw_buckets = 262144
net.ipv4.ip_dynaddr = 0
net.ipv4.tcp_keepalive_time = 7200
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.tcp_keepalive_intvl = 75
net.ipv4.tcp_retries1 = 3
net.ipv4.tcp_retries2 = 15
net.ipv4.tcp_fin_timeout = 60
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_recycle = 0
net.ipv4.tcp_abort_on_overflow = 0
net.ipv4.tcp_max_syn_backlog = 2048
net.ipv4.ip_local_port_range = 32768 61000
net.ipv4.inet_peer_threshold = 65664
net.ipv4.inet_peer_minttl = 120
net.ipv4.inet_peer_maxttl = 600
net.ipv4.inet_peer_gc_mintime = 10
net.ipv4.inet_peer_gc_maxtime = 120
net.ipv4.tcp_mem = 3080640 4107520 6161280
net.ipv4.tcp_wmem = 4096 16384 4194304
net.ipv4.tcp_rmem = 4096 87380 4194304
net.ipv4.tcp_app_win = 31
net.ipv4.tcp_adv_win_scale = 2
net.ipv4.tcp_tw_reuse = 0
net.ipv4.tcp_frto = 2
net.ipv4.tcp_frto_response = 0
net.ipv4.tcp_low_latency = 0
net.ipv4.tcp_no_metrics_save = 0
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_tso_win_divisor = 3
net.ipv4.tcp_congestion_control = cubic
net.ipv4.tcp_abc = 0
net.ipv4.tcp_mtu_probing = 0
net.ipv4.tcp_base_mss = 512
net.ipv4.tcp_workaround_signed_windows = 0
net.ipv4.tcp_challenge_ack_limit = 100
net.ipv4.tcp_limit_output_bytes = 131072
net.ipv4.tcp_dma_copybreak = 4096
net.ipv4.tcp_slow_start_after_idle = 1
net.ipv4.tcp_available_congestion_control = cubic reno
net.ipv4.tcp_allowed_congestion_control = cubic reno
net.ipv4.tcp_max_ssthresh = 0
net.ipv4.tcp_thin_linear_timeouts = 0
net.ipv4.tcp_thin_dupack = 0
net.ipv4.tcp_min_tso_segs = 2
net.ipv4.udp_mem = 3080640 4107520 6161280
net.ipv4.udp_rmem_min = 4096
net.ipv4.udp_wmem_min = 4096
net.ipv4.conf.all.forwarding = 0
net.ipv4.conf.all.mc_forwarding = 0
net.ipv4.conf.all.accept_redirects = 1
net.ipv4.conf.all.secure_redirects = 1
net.ipv4.conf.all.shared_media = 1
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.all.send_redirects = 1
net.ipv4.conf.all.src_valid_mark = 0
net.ipv4.conf.all.medium_id = 0
net.ipv4.conf.all.bootp_relay = 0
net.ipv4.conf.all.log_martians = 0
net.ipv4.conf.all.tag = 0
vm.min_free_kbytes = 67584
vm.swappiness = 60
vm.overcommit_memory = 0
```

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ACL
===

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Admin
=====

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Authentication
==============

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Clustering
==========
Suppose we cluster two nodes on hosts:
Node | Host | IpAddress
-----|--------|-------------
node1(disc_copy)| host1 | 192.168.0.10
node2(ram_copy) | host2 | 192.168.0.20
Configure and start 'node1'
---------------------------
configure 'etc/vm.args'::
-name emqttd@192.168.0.10
If host1, host2 added to /etc/hosts of OS::
-name emqttd@host1
Start node1::
./bin/emqttd start
.. NOTE:: Notice that data/mnesia/* should be removed before you start the broker with different node name.
Configure and start 'node2'
---------------------------
Configure 'etc/vm.args'::
-name emqttd@192.168.0.20
or::
-name emqttd@host2
Then start node2::
./bin/emqttd start
Cluster two nodes
---------------------------
Run './bin/emqttd_ctl cluster' on host2::
./bin/emqttd_ctl cluster emqttd@192.168.0.10
Check cluster status
---------------------------
And then check clustered status on any host::
./bin/emqttd_ctl cluster

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Configuration
=============
TODO:...
Configuration files include:
+-------------------+-----------------------------------+
| File | Description |
+-------------------+-----------------------------------+
| etc/vm.args | Erlang VM Arguments |
+-------------------+-----------------------------------+
| etc/app.config | emqttd Broker Configuration |
+-------------------+-----------------------------------+
| etc/acl.config | ACL Rules Config |
+-------------------+-----------------------------------+
| etc/clients.config| Authentication with clientId |
+-------------------+-----------------------------------+
| etc/ssl/* | SSL certificate and key files |
+-------------------+-----------------------------------+
etc/vm.args
-----------
Configure/Optimize the Erlang VM::
##-------------------------------------------------------------------------
## Name of the node
##-------------------------------------------------------------------------
-name emqttd@127.0.0.1
## Cookie for distributed erlang
-setcookie emqttdsecretcookie
##-------------------------------------------------------------------------
## Flags
##-------------------------------------------------------------------------
## Heartbeat management; auto-restarts VM if it dies or becomes unresponsive
## (Disabled by default..use with caution!)
##-heart
-smp true
## Enable kernel poll and a few async threads
+K true
## 12 threads/core.
+A 48
## max process numbers
+P 8192
## Sets the maximum number of simultaneously existing ports for this system
+Q 8192
## max atom number
## +t
## Set the distribution buffer busy limit (dist_buf_busy_limit) in kilobytes.
## Valid range is 1-2097151. Default is 1024.
## +zdbbl 8192
## CPU Schedulers
## +sbt db
##-------------------------------------------------------------------------
## Env
##-------------------------------------------------------------------------
## Increase number of concurrent ports/sockets, deprecated in R17
-env ERL_MAX_PORTS 8192
-env ERTS_MAX_PORTS 8192
-env ERL_MAX_ETS_TABLES 1024
## Tweak GC to run more often
-env ERL_FULLSWEEP_AFTER 1000
.. NOTE:: +P Number > 2 * Max Connections
etc/app.config
--------------
TODO: The main configuration file for emqttd broker. Configure authentication, ACL, mqtt protocol parameters and listeners of the broker.
TODO: The file is erlang format.
Authentication and ACL::
%% Authentication and Authorization
{access, [
%% Authetication. Anonymous Default
{auth, [
%% Authentication with username, password
%{username, []},
%% Authentication with clientid
%{clientid, [{password, no}, {file, "etc/clients.config"}]},
%% Authentication with LDAP
% {ldap, [
% {servers, ["localhost"]},
% {port, 389},
% {timeout, 30},
% {user_dn, "uid=$u,ou=People,dc=example,dc=com"},
% {ssl, fasle},
% {sslopts, [
% {"certfile", "ssl.crt"},
% {"keyfile", "ssl.key"}]}
% ]},
%% Allow all
{anonymous, []}
]},
%% ACL config
{acl, [
%% Internal ACL module
{internal, [{file, "etc/acl.config"}, {nomatch, allow}]}
]}
]},
MQTT Packet, Client, Session, MQueue::
{mqtt, [
%% Packet
{packet, [
%% Max ClientId Length Allowed
{max_clientid_len, 1024},
%% Max Packet Size Allowed, 64K default
{max_packet_size, 65536}
]},
%% Client
{client, [
%% Socket is connected, but no 'CONNECT' packet received
{idle_timeout, 20} %% seconds
%TODO: Network ingoing limit
%{ingoing_rate_limit, '64KB/s'}
%TODO: Reconnet control
]},
%% Session
{session, [
%% Max number of QoS 1 and 2 messages that can be “in flight” at one time.
%% 0 means no limit
{max_inflight, 100},
%% Retry interval for redelivering QoS1/2 messages.
{unack_retry_interval, 60},
%% Awaiting PUBREL Timeout
{await_rel_timeout, 20},
%% Max Packets that Awaiting PUBREL, 0 means no limit
{max_awaiting_rel, 0},
%% Statistics Collection Interval(seconds)
{collect_interval, 0},
%% Expired after 2 days
{expired_after, 48}
]},
%% Session
{queue, [
%% Max queue length. enqueued messages when persistent client disconnected,
%% or inflight window is full.
{max_length, 100},
%% Low-water mark of queued messages
{low_watermark, 0.2},
%% High-water mark of queued messages
{high_watermark, 0.6},
%% Queue Qos0 messages?
{queue_qos0, true}
]}
]},
Broker Options::
{broker, [
%% System interval of publishing broker $SYS messages
{sys_interval, 60},
%% Retained messages
{retained, [
%% Expired after seconds, never expired if 0
{expired_after, 0},
%% Max number of retained messages
{max_message_num, 100000},
%% Max Payload Size of retained message
{max_playload_size, 65536}
]},
%% PubSub and Router
{pubsub, [
%% Default should be scheduler numbers
%% {pool_size, 8},
%% Subscription: disc | ram | false
{subscription, ram},
%% Route shard
{route_shard, false},
%% Route delay, false | integer
{route_delay, false},
%% Route aging time(seconds)
{route_aging, 5}
]},
%% Bridge
{bridge, [
%%TODO: bridge queue size
{max_queue_len, 10000},
%% Ping Interval of bridge node
{ping_down_interval, 1} %seconds
]}
]},
Extended Modules::
{modules, [
%% Client presence management module.
%% Publish messages when client connected or disconnected
{presence, [{qos, 0}]}
%% Subscribe topics automatically when client connected
%% {subscription, [
%% %% Subscription from stored table
%% stored,
%%
%% %% $u will be replaced with username
%% {"$Q/username/$u", 1},
%%
%% %% $c will be replaced with clientid
%% {"$Q/client/$c", 1}
%% ]}
%% Rewrite rules
%% {rewrite, [{file, "etc/rewrite.config"}]}
]},
Listeners::
{listeners, [
{mqtt, 1883, [
%% Size of acceptor pool
{acceptors, 16},
%% Maximum number of concurrent clients
{max_clients, 8192},
%% Socket Access Control
{access, [{allow, all}]},
%% Connection Options
{connopts, [
%% Rate Limit. Format is 'burst, rate', Unit is KB/Sec
%% {rate_limit, "100,10"} %% 100K burst, 10K rate
]},
%% Socket Options
{sockopts, [
%Set buffer if hight thoughtput
%{recbuf, 4096},
%{sndbuf, 4096},
%{buffer, 4096},
%{nodelay, true},
{backlog, 1024}
]}
]},
{mqtts, 8883, [
%% Size of acceptor pool
{acceptors, 4},
%% Maximum number of concurrent clients
{max_clients, 512},
%% Socket Access Control
{access, [{allow, all}]},
%% SSL certificate and key files
{ssl, [{certfile, "etc/ssl/ssl.crt"},
{keyfile, "etc/ssl/ssl.key"}]},
%% Socket Options
{sockopts, [
{backlog, 1024}
%{buffer, 4096},
]}
]},
%% WebSocket over HTTPS Listener
%% {https, 8083, [
%% %% Size of acceptor pool
%% {acceptors, 4},
%% %% Maximum number of concurrent clients
%% {max_clients, 512},
%% %% Socket Access Control
%% {access, [{allow, all}]},
%% %% SSL certificate and key files
%% {ssl, [{certfile, "etc/ssl/ssl.crt"},
%% {keyfile, "etc/ssl/ssl.key"}]},
%% %% Socket Options
%% {sockopts, [
%% %{buffer, 4096},
%% {backlog, 1024}
%% ]}
%%]},
%% HTTP and WebSocket Listener
{http, 8083, [
%% Size of acceptor pool
{acceptors, 4},
%% Maximum number of concurrent clients
{max_clients, 64},
%% Socket Access Control
{access, [{allow, all}]},
%% Socket Options
{sockopts, [
{backlog, 1024}
%{buffer, 4096},
]}
]}
]},
etc/acl.config
--------------
Configuration file for ACL::
%%%-----------------------------------------------------------------------------
%%%
%%% -type who() :: all | binary() |
%%% {ipaddr, esockd_access:cidr()} |
%%% {client, binary()} |
%%% {user, binary()}.
%%%
%%% -type access() :: subscribe | publish | pubsub.
%%%
%%% -type topic() :: binary().
%%%
%%% -type rule() :: {allow, all} |
%%% {allow, who(), access(), list(topic())} |
%%% {deny, all} |
%%% {deny, who(), access(), list(topic())}.
%%%
%%%-----------------------------------------------------------------------------
{allow, {user, "dashboard"}, subscribe, ["$SYS/#"]}.
{allow, {ipaddr, "127.0.0.1"}, pubsub, ["$SYS/#", "#"]}.
{deny, all, subscribe, ["$SYS/#", {eq, "#"}]}.
{allow, all}.
.. NOTE:: Allow 'localhost' to pubsub '$SYS/#' and '#' by default.
etc/clients.config
------------------
TODO:
testclientid0
testclientid1 127.0.0.1
testclientid2 192.168.0.1/24

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/etc/init.d/emqttd
==================
::
#!/bin/sh
#
# emqttd Startup script for emqttd.
#
# chkconfig: 2345 90 10
# description: emqttd is mqtt broker.
# source function library
. /etc/rc.d/init.d/functions
# export HOME=/root
start() {
echo "starting emqttd..."
cd /opt/emqttd && ./bin/emqttd start
}
stop() {
echo "stopping emqttd..."
cd /opt/emqttd && ./bin/emqttd stop
}
restart() {
stop
start
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
*)
echo $"Usage: $0 {start|stop}"
RETVAL=2
esac
chkconfig
---------
::
chmod +x /etc/init.d/emqttd
chkconfig --add emqttd
chkconfig --list
boot test on ubuntu
-------------------
::
service emqttd start
erlexec: HOME must be set
-------------------
uncomment '# export HOME=/root' if "HOME must be set" error.
Referrence
---------
.. `How to make unix service see environment variables?`_: http://unix.stackexchange.com/questions/44370/how-to-make-unix-service-see-environment-variables/44378#44378

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HTTP API
========
emqttd support HTTP API to publish message from your application server to MQTT clients. For example::
curl -v --basic -u user:passwd -d "qos=1&retain=0&topic=/a/b/c&message=hello from http..." -k http://localhost:8083/mqtt/publish
HTTP API URL
-----------
::
HTTP POST http://host:8083/mqtt/publish
HTTP Parameters
---------------
+---------+-----------------+
| Name | Description |
+-------------------+-------+
| client | ClientId |
+-------------------+-------+
| qos | QoS(0, 1, 2) |
+-------------------+-------+
| retain | Retain(0, 1) |
+-------------------+-------+
| topic | Topic |
+-------------------+-------+
| message | Message |
+-------------------+-------+

17
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User Guide
----------
.. toctree::
:maxdepth: 2
install
configuration
authentication
acl
http
websocket
admin
systopics
logs
trace

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Installation
============
TODO: ...
emqttd is cross-platform, could run on windows, linux, freebsd and mac os x.
emqttd is easy to install and takes about 5 minutes to download and startup.
Install on Linux, Freebsd and Mac OS X
--------------------------------------
Download binary packages from http://emqtt.io/downloads, and then::
unzip emqttd-platform-0.x.y-beta.zip && cd emqttd
Startup with console for debug::
./bin/emqttd console
All the MQTT Packets(RECV/SENT) will be printed on console.
Startup as daemon::
./bin/emqttd start
TCP Ports used by emqttd:
+-----------+-----------------------------+
| Port | Description |
+-----------+-----------------------------+
| 1883 | MQTT |
+-----------+-----------------------------+
| 8883 | MQTT(SSL) |
+-----------+-----------------------------+
| 8083 | MQTT Over WebSocket |
+-----------+-----------------------------+
Check the broker status::
./bin/emqttd_ctl status
Stop the broker::
./bin/emqttd stop
Install on Windows
------------------
Download windows package from http://emqtt.io/downloads.
Start console to check if emqttd works::
.\bin\emqttd console
.. NOTE:: execute '.\bin\emqttd', should not cd to 'bin' folder.
A console window will show if the broker started successfully.
Register emqttd as window service::
.\bin\emqttd install
Starte emqttd service::
.\bin\emqttd start
.. NOTE:: The console window should be closed if opened.
Stop emqttd service::
.\bin\emqttd stop
Uninstall emqttd service::
.\bin\emqttd uninstall
Build from Source
-----------------
emqttd requires Erlang R17+ to build from source.
Erlang R17+ and git client should be installed before building emqttd.
::
git clone https://github.com/emqtt/emqttd.git
cd emqttd
git submodule update --init --recursive
make && make dist
cd rel/emqttd && ./bin/emqttd console

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Logs
====

205
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$SYS Topics
===========
$SYS Topics of broker is started with::
$SYS/brokers/${node}
${node} is erlang node name of clustered brokers. For example::
$SYS/brokers/emqttd@host1/version
$SYS/brokers/emqttd@host2/version
Broker $SYS Topics
------------------
Topic | Description
-------------------------------|------------
$SYS/brokers | Broker nodes
$SYS/brokers/${node}/version | Broker Version
$SYS/brokers/${node}/uptime | Broker Uptime
$SYS/brokers/${node}/datetime | Broker DateTime
$SYS/brokers/${node}/sysdescr | Broker Description
 
Client $SYS Topics
------------------
Start with: $SYS/brokers/${node}/clients/
Topic | Payload(json) | Description
----------------------|---------------------|---------------
${clientid}/connected | {ipaddress: "127.0.0.1", username: "test", session: false, version: 3, connack: 0, ts: 1432648482} | Publish when client connected
${clientid}/disconnected | {reason: "normal" | "keepalive_timeout" | "conn_closed"}
Parameters of 'connected' Payload::
ipaddress: "127.0.0.1",
username: "test",
session: false,
protocol: 3,
connack: 0,
ts: 1432648482
Parameters of 'disconnected' Payload::
reason: normal,
ts: 1432648486
Statistics $SYS Topics
----------------------
Start with '$SYS/brokers/${node}/stats/'
Client Stats
----------------------
Topic | Description
-------------------------------------|------------
clients/count | count of current connected clients
clients/max | max connected clients in the same time
Session Stats
----------------------
Topic | Description
-----------------|------------
sessions/count | count of current sessions
sessions/max | max number of sessions
Subscriber Stats
----------------------
Topic | Description
------------------|------------
subscriptions/count | count of current subscriptions
subscriptions/max | max number of subscriptions
Topic Stats
----------------------
Topic | Description
------------------|------------
topics/count | count of current topics
topics/max | max number of topics
Queue Stats
----------------------
Topic | Description
------------------|------------
queues/count | count of current queues
queues/max | max number of queues
Metrics $SYS Topics
----------------------
Start with '$SYS/brokers/${node}/metrics/'
Bytes sent and received
----------------------
Topic | Description
------------------------------------|------------
bytes/received | MQTT Bytes Received since broker started
bytes/sent | MQTT Bytes Sent since the broker started
Packets sent and received
-------------------------
Topic | Description
-------------------------|------------
packets/received | MQTT Packets received
packets/sent | MQTT Packets sent
packets/connect | MQTT CONNECT Packet received
packets/connack | MQTT CONNACK Packet sent
packets/publish/received | MQTT PUBLISH packets received
packets/publish/sent | MQTT PUBLISH packets sent
packets/subscribe | MQTT SUBSCRIBE Packets received
packets/suback | MQTT SUBACK packets sent
packets/unsubscribe | MQTT UNSUBSCRIBE Packets received
packets/unsuback | MQTT UNSUBACK Packets sent
packets/pingreq | MQTT PINGREQ packets received
packets/pingresp | MQTT PINGRESP Packets sent
packets/disconnect | MQTT DISCONNECT Packets received
Messages sent and received
---------------------------
Topic | Description
---------------------------------------|-------------------
messages/received | Messages Received
messages/sent | Messages Sent
messages/retained | Messages Retained
messages/stored | TODO: Messages Stored
messages/dropped | Messages Dropped
Alarm Topics
---------------------------
Start with '$SYS/brokers/${node}/alarms/'
Topic | Description
-----------------|-------------------
${alarmId}/alert | New Alarm
${alarmId}/clear | Clear Alarm
Logs
---------------------------
'$SYS/brokers/${node}/logs/${severity}'
Severity | Description
-----------|-------------------
debug | Debug Log
info | Info Log
notice | Notice Log
warning | Warning Log
error | Error Log
critical | Critical Log
Sysmon
---------------------------
Start with '$SYS/brokers/${node}/sysmon/'
Topic | Description
-----------------|-------------------
long_gc | Long GC Warning
long_schedule | Long Schedule
large_heap | Large Heap Warning
busy_port | Busy Port Warning
busy_dist_port | Busy Dist Port
Logs(TODO)
---------------------------
'$SYS/brokers/${node}/log/${severity}'
Severity | Description
------------|-------------------
debug | Debug
info | Info Log
notice | Notice Log
warning | Warning Log
error | Error Log
critical | Critical Log
alert | Alert Log
VM Load Topics(TODO)
---------------------------
Start with '$SYS/brokers/${node}/vm/'
Topic | Description
-----------------|-------------------
memory/* | TODO
cpu/* | TODO
processes/* | TODO
Sys Interval
---------------------------
sys_interval: 1 minute default

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emqttd could trace packets received/sent from/to specific client, or trace publish/subscribe to specific topic.
emqttd use lager:trace_file api and write trace log to file.
TODO: NOTICE
Trace client
-------------
```
./bin/emqttd_ctl trace client "ClientId" "trace_clientid.log"
```
Trace topic
-------------
```
./bin/emqttd_ctl trace topic "Topic" "trace_topic.log"
```
Stop Trace
-------------
```
./bin/emqttd_ctl trace client "ClientId" off
./bin/emqttd_ctl trace topic "Topic" off
```
Lookup Traces
-------------
```
./bin/emqttd_ctl trace list
```

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WebSocket
=========
emqttd supports MQTT over WebSocket(SSL).
URI
----
::
ws(s)://host:8083/mqtt
Sec-WebSocket-Protocol
----------------------
::
'mqttv3.1', 'mqttv3.1.1'