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Merge from trunk r1600:
* src/ejabberd_rdbms.erl: fix SQL database reconnection issues (EJAB-764) and add odbc_start_interval configuration directive (default to 30 seconds). * src/odbc/ejabberd_odbc.erl: likewise. * src/odbc/ejabberd_odbc_sup.erl: likewise. * doc/guide.tex: likewise. SVN Revision: 1601
This commit is contained in:
Jérôme Sautret
parent
7224ec8cb4
commit
a4ee23edfe
@ -1,3 +1,12 @@
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2008-10-06 Jerome Sautret <jerome.sautret@process-one.net>
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* src/ejabberd_rdbms.erl: fix SQL database reconnection
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issues (EJAB-764) and add odbc_start_interval configuration
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directive (default to 30 seconds).
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* src/odbc/ejabberd_odbc.erl: likewise.
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* src/odbc/ejabberd_odbc_sup.erl: likewise.
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* doc/guide.tex: likewise.
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2008-10-03 Jerome Sautret <jerome.sautret@process-one.net>
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* src/odbc/odbc_queries.erl: Fix syntax error on update_roster_sql query.
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190
doc/guide.tex
190
doc/guide.tex
@ -1388,6 +1388,152 @@ Examples:
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\end{verbatim}
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\end{itemize}
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<<<<<<< .courant
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=======
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Appendix \ref{i18ni10n} provides more details about internationalization and localization.
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\makesubsection{includeconfigfile}{Include Additional Configuration Files}
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\ind{options!includeconfigfile}\ind{includeconfigfile}
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The option \option{include\_config\_file} in a configuration file instructs \ejabberd{} to include other configuration files immediately.
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The basic usage is:
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\begin{verbatim}
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{include_config_file, <filename>}.
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\end{verbatim}
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It is also possible to specify suboptions:
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\begin{verbatim}
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{include_config_file, <filename>, [<suboption>, <suboption>, ...]}.
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\end{verbatim}
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The filename can be indicated either as an absolute path,
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or relative to the main \ejabberd{} configuration file.
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It isn't possible to use wildcards.
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The file must exist and be readable.
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The allowed suboptions are:
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\begin{description}
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\titem{\{disallow, [<option>, <option>, ...]\}} Disallows the usage of those options in the included configuration file.
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The options that match this criteria are not accepted.
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The default value is an empty list: \term{[]}
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\titem{\{allow\_only, [<option>, <option>, ...]\}} Allows only the usage of those options in the included configuration file.
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The options that do not match this criteria are not accepted.
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The default value is: \term{all}
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\end{description}
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This is a basic example:
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\begin{verbatim}
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{include_config_file, "/etc/ejabberd/additional.cfg"}.
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\end{verbatim}
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In this example, the included file is not allowed to contain a \term{listen} option.
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If such an option is present, the option will not be accepted.
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The file is in a subdirectory from where the main configuration file is.
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\begin{verbatim}
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{include_config_file, "./example.org/additional_not_listen.cfg", [{disallow, [listen]}]}.
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\end{verbatim}
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In this example, \term{ejabberd.cfg} defines some ACL and Access rules,
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and later includes another file with additional rules:
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\begin{verbatim}
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{acl, admin, {user, "admin", "localhost"}}.
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{access, announce, [{allow, admin}]}.
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{include_config_file, "/etc/ejabberd/acl_and_access.cfg", [{allow_only, [acl, access]}]}.
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\end{verbatim}
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and content of the file \term{acl\_and\_access.cfg} can be, for example:
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\begin{verbatim}
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{acl, admin, {user, "bob", "localhost"}}.
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{acl, admin, {user, "jan", "localhost"}}.
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\end{verbatim}
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\makesubsection{optionmacros}{Option Macros in Configuration File}
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\ind{options!optionmacros}\ind{optionmacros}
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In the \ejabberd{} configuration file,
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it is possible to define a macro for a value
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and later use this macro when defining an option.
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A macro is defined with this syntax:
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\begin{verbatim}
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{define_macro, '<MACRO>', <value>}.
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\end{verbatim}
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The \term{MACRO} must be surrounded by single quotation marks,
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and all letters in uppercase; check the examples bellow.
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The \term{value} can be any valid arbitrary Erlang term.
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The first definition of a macro is preserved,
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and additional definitions of the same macro are forgotten.
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Macros are processed after
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additional configuration files have been included,
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so it is possible to use macros that
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are defined in configuration files included before the usage.
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It isn't possible to use a macro in the definition
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of another macro.
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There are two ways to use a macro:
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\begin{description}
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\titem{'<MACRO>'}
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You can put this instead of a value in an \ejabberd{} option,
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and will be replaced with the \term{value} previously defined.
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If the macro is not defined previously,
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the program will crash and report an error.
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\titem{\{use\_macro, '<MACRO>', <defaultvalue>\}}
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Use a macro even if it may not be defined.
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If the macro is not defined previously,
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the provided \term{defaultvalue} is used.
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This usage behaves as if it were defined and used this way:
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\begin{verbatim}
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{define_macro, '<MACRO>', <defaultvalue>}.
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'<MACRO>'
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\end{verbatim}
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\end{description}
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This example shows the basic usage of a macro:
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\begin{verbatim}
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{define_macro, 'LOG_LEVEL_NUMBER', 5}.
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{loglevel, 'LOG_LEVEL_NUMBER'}.
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\end{verbatim}
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The resulting option interpreted by \ejabberd{} is: \term{\{loglevel, 5\}}.
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This example shows that values can be any arbitrary Erlang term:
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\begin{verbatim}
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{define_macro, 'USERBOB', {user, "bob", "localhost"}}.
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{acl, admin, 'USERBOB'}.
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\end{verbatim}
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The resulting option interpreted by \ejabberd{} is: \term{\{acl, admin, \{user, "bob", "localhost"\}\}}.
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This complex example:
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\begin{verbatim}
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{define_macro, 'NUMBER_PORT_C2S', 5222}.
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{define_macro, 'PORT_S2S_IN', {5269, ejabberd_s2s_in, []}}.
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{listen,
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[
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{'NUMBER_PORT_C2S', ejabberd_c2s, []},
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'PORT_S2S_IN',
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{{use_macro, 'NUMBER_PORT_HTTP', 5280}, ejabberd_http, []}
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]
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}.
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\end{verbatim}
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produces this result after being interpreted:
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\begin{verbatim}
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{listen,
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[
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{5222, ejabberd_c2s, []},
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{5269, ejabberd_s2s_in, []},
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{5280, ejabberd_http, []}
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]
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}.
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\end{verbatim}
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>>>>>>> .fusion-droit.r1600
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\makesection{database}{Database and LDAP Configuration}
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\ind{database}
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%TODO: this whole section is not yet 100% optimized
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@ -1444,6 +1590,13 @@ Specify in seconds: for example 28800 means 8 hours.
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{odbc_keepalive_interval, undefined}.
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\end{verbatim}
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If the connection to the database fails, \ejabberd{} waits 30 seconds before retrying.
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You can modify this interval with this option:
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\begin{verbatim}
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{odbc_start_interval, 30}.
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\end{verbatim}
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\makesubsubsection{compilemysql}{Driver Compilation}
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\ind{MySQL!Driver Compilation}
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@ -2672,6 +2825,14 @@ Options:
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This option sets the full path to the directory in which the HTML files should
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be stored. Make sure the \ejabberd{} daemon user has write access on that
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directory. The default value is \term{"www/muc"}.
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<<<<<<< .courant
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=======
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\titem{spam\_prevention}\ind{options!spam\_prevention}
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To prevent spam, the \term{spam\_prevention} option adds a special attribute
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to links that prevent their indexation by search engines. The default value
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is \term{true}, which mean that nofollow attributes will be added to user
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submitted links.
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>>>>>>> .fusion-droit.r1600
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\titem{timezone}\ind{options!timezone}
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The time zone for the logs is configurable with this option. Allowed values
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are \term{local} and \term{universal}. With the first value, the local time,
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@ -3592,8 +3753,16 @@ The command line parameters:
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\titem{-name ejabberd}
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The Erlang node will be fully identified.
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This is only useful if you plan to setup an \ejabberd{} cluster with nodes in different networks.
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<<<<<<< .courant
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\titem{-kernel inetrc "/etc/ejabberd/inetrc"}
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Indicates which IP name resolution to use. It is required if using \term{-sname}.
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=======
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\titem{-kernel inetrc "/etc/ejabberd/inetrc"}
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Indicates which IP name resolution to use.
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If using \term{-sname}, specify either this option or \term{ERL\_INETRC}.
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\titem{-kernel inet\_dist\_listen\_min 4200 inet\_dist\_listen\_min 4210}
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Define the first and last ports that \term{epmd} (section \ref{epmd}) can listen to.
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>>>>>>> .fusion-droit.r1600
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\titem{-detached}
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Starts the Erlang system detached from the system console.
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Useful for running daemons and backgrounds processes.
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@ -3775,8 +3944,14 @@ Remember to block the port so Internet doesn't have access to it.
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Once an Erlang node solved the node name of another Erlang node using EPMD and port 4369,
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the nodes communicate directly.
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<<<<<<< .courant
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The ports used in this case are random.
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You can limit the range of ports when starting Erlang with a command-line parameter, for example:
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=======
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The ports used in this case by default are random,
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but can be configured in the file \term{ejabberdctl.cfg}.
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The Erlang command-line parameter used internally is, for example:
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>>>>>>> .fusion-droit.r1600
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\begin{verbatim}
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erl ... -kernel inet_dist_listen_min 4370 inet_dist_listen_max 4375
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\end{verbatim}
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@ -4101,6 +4276,21 @@ To exit the shell, close the window or press the keys: control+c control+c.
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\makechapter{i18ni10n}{Internationalization and Localization}
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\ind{xml:lang}\ind{internationalization}\ind{localization}\ind{i18n}\ind{l10n}
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<<<<<<< .courant
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=======
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The source code of \ejabberd{} supports localization.
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The translators can edit the
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\footahref{http://www.gnu.org/software/gettext/}{gettext} .po files
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using any capable program (KBabel, Lokalize, Poedit...) or a simple text editor.
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Then gettext
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is used to extract, update and export those .po files to the .msg format read by \ejabberd{}.
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To perform those management tasks, in the \term{src/} directory execute \term{make translations}.
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The translatable strings are extracted from source code to generate the file \term{ejabberd.pot}.
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This file is merged with each .po file to produce updated .po files.
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Finally those .po files are exported to .msg files, that have a format easily readable by \ejabberd{}.
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>>>>>>> .fusion-droit.r1600
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All built-in modules support the \texttt{xml:lang} attribute inside IQ queries.
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Figure~\ref{fig:discorus}, for example, shows the reply to the following query:
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\begin{verbatim}
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@ -52,14 +52,21 @@ start_hosts() ->
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%% Start the ODBC module on the given host
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start_odbc(Host) ->
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Supervisor_name = gen_mod:get_module_proc(Host, ejabberd_odbc_sup),
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ChildSpec =
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{gen_mod:get_module_proc(Host, ejabberd_odbc_sup),
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{Supervisor_name,
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{ejabberd_odbc_sup, start_link, [Host]},
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temporary,
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transient,
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infinity,
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supervisor,
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[ejabberd_odbc_sup]},
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supervisor:start_child(ejabberd_sup, ChildSpec).
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case supervisor:start_child(ejabberd_sup, ChildSpec) of
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{ok, _PID} ->
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ok;
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_Error ->
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?ERROR_MSG("Start of supervisor ~p failed:~n~p~nRetrying...~n", [Supervisor_name, _Error]),
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start_odbc(Host)
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end.
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%% Returns true if we have configured odbc_server for the given host
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needs_odbc(Host) ->
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@ -30,7 +30,7 @@
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-behaviour(gen_server).
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%% External exports
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-export([start/1, start_link/1,
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-export([start/1, start_link/2,
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sql_query/2,
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sql_query_t/1,
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sql_transaction/2,
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@ -63,8 +63,8 @@
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start(Host) ->
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gen_server:start(ejabberd_odbc, [Host], []).
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start_link(Host) ->
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gen_server:start_link(ejabberd_odbc, [Host], []).
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start_link(Host, StartInterval) ->
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gen_server:start_link(ejabberd_odbc, [Host, StartInterval], []).
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sql_query(Host, Query) ->
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gen_server:call(ejabberd_odbc_sup:get_random_pid(Host),
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@ -131,10 +131,10 @@ escape_like(C) -> odbc_queries:escape(C).
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%% ignore |
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%% {stop, Reason}
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%%----------------------------------------------------------------------
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init([Host]) ->
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init([Host, StartInterval]) ->
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case ejabberd_config:get_local_option({odbc_keepalive_interval, Host}) of
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Interval when is_integer(Interval) ->
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timer:apply_interval(Interval*1000, ?MODULE, keep_alive, [self()]);
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KeepaliveInterval when is_integer(KeepaliveInterval) ->
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timer:apply_interval(KeepaliveInterval*1000, ?MODULE, keep_alive, [self()]);
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undefined ->
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ok;
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_Other ->
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@ -144,16 +144,16 @@ init([Host]) ->
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case SQLServer of
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%% Default pgsql port
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{pgsql, Server, DB, Username, Password} ->
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pgsql_connect(Server, ?PGSQL_PORT, DB, Username, Password);
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pgsql_connect(Server, ?PGSQL_PORT, DB, Username, Password, StartInterval);
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{pgsql, Server, Port, DB, Username, Password} when is_integer(Port) ->
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pgsql_connect(Server, Port, DB, Username, Password);
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pgsql_connect(Server, Port, DB, Username, Password, StartInterval);
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%% Default mysql port
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{mysql, Server, DB, Username, Password} ->
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mysql_connect(Server, ?MYSQL_PORT, DB, Username, Password);
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mysql_connect(Server, ?MYSQL_PORT, DB, Username, Password, StartInterval);
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{mysql, Server, Port, DB, Username, Password} when is_integer(Port) ->
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mysql_connect(Server, Port, DB, Username, Password);
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mysql_connect(Server, Port, DB, Username, Password, StartInterval);
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_ when is_list(SQLServer) ->
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odbc_connect(SQLServer)
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odbc_connect(SQLServer, StartInterval)
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end.
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%%----------------------------------------------------------------------
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@ -245,7 +245,7 @@ execute_transaction(State, F, NRestarts) ->
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%% part of init/1
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%% Open an ODBC database connection
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odbc_connect(SQLServer) ->
|
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odbc_connect(SQLServer, StartInterval) ->
|
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application:start(odbc),
|
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case odbc:connect(SQLServer,[{scrollable_cursors, off}]) of
|
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{ok, Ref} ->
|
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@ -254,8 +254,8 @@ odbc_connect(SQLServer) ->
|
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{error, Reason} ->
|
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?ERROR_MSG("ODBC connection (~s) failed: ~p~n",
|
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[SQLServer, Reason]),
|
||||
%% If we can't connect we wait for 30 seconds before retrying
|
||||
timer:sleep(30000),
|
||||
%% If we can't connect we wait before retrying
|
||||
timer:sleep(StartInterval),
|
||||
{stop, odbc_connection_failed}
|
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end.
|
||||
|
||||
@ -264,15 +264,15 @@ odbc_connect(SQLServer) ->
|
||||
|
||||
%% part of init/1
|
||||
%% Open a database connection to PostgreSQL
|
||||
pgsql_connect(Server, Port, DB, Username, Password) ->
|
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pgsql_connect(Server, Port, DB, Username, Password, StartInterval) ->
|
||||
case pgsql:connect(Server, DB, Username, Password, Port) of
|
||||
{ok, Ref} ->
|
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erlang:monitor(process, Ref),
|
||||
{ok, #state{db_ref = Ref, db_type = pgsql}};
|
||||
{error, Reason} ->
|
||||
?ERROR_MSG("PostgreSQL connection failed: ~p~n", [Reason]),
|
||||
%% If we can't connect we wait for 30 seconds before retrying
|
||||
timer:sleep(30000),
|
||||
%% If we can't connect we wait before retrying
|
||||
timer:sleep(StartInterval),
|
||||
{stop, pgsql_connection_failed}
|
||||
end.
|
||||
|
||||
@ -303,7 +303,7 @@ pgsql_item_to_odbc(_) ->
|
||||
|
||||
%% part of init/1
|
||||
%% Open a database connection to MySQL
|
||||
mysql_connect(Server, Port, DB, Username, Password) ->
|
||||
mysql_connect(Server, Port, DB, Username, Password, StartInterval) ->
|
||||
NoLogFun = fun(_Level,_Format,_Argument) -> ok end,
|
||||
case mysql_conn:start(Server, Port, Username, Password, DB, NoLogFun) of
|
||||
{ok, Ref} ->
|
||||
@ -311,9 +311,10 @@ mysql_connect(Server, Port, DB, Username, Password) ->
|
||||
mysql_conn:fetch(Ref, ["set names 'utf8';"], self()),
|
||||
{ok, #state{db_ref = Ref, db_type = mysql}};
|
||||
{error, Reason} ->
|
||||
?ERROR_MSG("MySQL connection failed: ~p~n", [Reason]),
|
||||
%% If we can't connect we wait for 30 seconds before retrying
|
||||
timer:sleep(30000),
|
||||
?ERROR_MSG("MySQL connection failed: ~p~nWaiting ~p seconds before retrying...~n",
|
||||
[Reason, StartInterval div 1000]),
|
||||
%% If we can't connect we wait before retrying
|
||||
timer:sleep(StartInterval),
|
||||
{stop, mysql_connection_failed}
|
||||
end.
|
||||
|
||||
|
||||
@ -37,13 +37,14 @@
|
||||
-include("ejabberd.hrl").
|
||||
|
||||
-define(DEFAULT_POOL_SIZE, 10).
|
||||
-define(DEFAULT_ODBC_START_INTERVAL, 30). % 30 seconds
|
||||
|
||||
start_link(Host) ->
|
||||
supervisor:start_link({local, gen_mod:get_module_proc(Host, ?MODULE)},
|
||||
?MODULE, [Host]).
|
||||
|
||||
init([Host]) ->
|
||||
N = case ejabberd_config:get_local_option({odbc_pool_size, Host}) of
|
||||
PoolSize = case ejabberd_config:get_local_option({odbc_pool_size, Host}) of
|
||||
I when is_integer(I) ->
|
||||
I;
|
||||
undefined ->
|
||||
@ -53,16 +54,27 @@ init([Host]) ->
|
||||
[Other, Host, ?DEFAULT_POOL_SIZE]),
|
||||
?DEFAULT_POOL_SIZE
|
||||
end,
|
||||
{ok, {{one_for_one, 10, 6},
|
||||
StartInterval = case ejabberd_config:get_local_option({odbc_start_interval, Host}) of
|
||||
Interval when is_integer(Interval) ->
|
||||
Interval;
|
||||
undefined ->
|
||||
?DEFAULT_ODBC_START_INTERVAL;
|
||||
_Other2 ->
|
||||
?ERROR_MSG("Wrong odbc_start_interval definition '~p' for host ~p"
|
||||
", defaulting to ~p~n",
|
||||
[_Other2, Host, ?DEFAULT_ODBC_START_INTERVAL]),
|
||||
?DEFAULT_ODBC_START_INTERVAL
|
||||
end,
|
||||
{ok, {{one_for_one, PoolSize+1, StartInterval},
|
||||
lists:map(
|
||||
fun(I) ->
|
||||
{I,
|
||||
{ejabberd_odbc, start_link, [Host]},
|
||||
{ejabberd_odbc, start_link, [Host, StartInterval*1000]},
|
||||
transient,
|
||||
brutal_kill,
|
||||
worker,
|
||||
[?MODULE]}
|
||||
end, lists:seq(1, N))}}.
|
||||
end, lists:seq(1, PoolSize))}}.
|
||||
|
||||
get_pids(Host) ->
|
||||
Proc = gen_mod:get_module_proc(Host, ?MODULE),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user