boinc/doc/database.html

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<title>The BOINC Database</title>
<body bgcolor=ffffff>
<h2>The BOINC Database</h2>
<p>
BOINC uses a relational database to keep track of participants, work
and result.
The reference implementation uses MySQL, but any SQL database can be used.
<p>
In boinc/html_user/ there is a file called db_name containing only the
name of the database for that project.
Each BOINC project will have a different database name.
This allows for access to different databases through the webpages of projects.
<p>
The database tables are as follows:
<dl>
<dt> platform
<dd> Compilation targets of the core client and/or applications.
<dt> app
<dd> Applications.
The core client is treated as an application; its name is "core_client".
<dt> app_version
<dd> Versions of applications.
Each record includes a URL for
downloading the executable, and the MD5 checksum of the executable.
<dt> user
<dd> Describes users, including their email address, name, web
password, and authenticator.
<dt> preferences
<dd> Describes preferences.
The actual preference information is
stored in an XML document in a "blob" field of this table.
<dt> host
<dd> Describes hosts.
<dt> workunit
<dd> Describes workunits.
The input file descriptions are stored in an XML document in a blob field.
Includes counts of the number of
results linked to this workunit, and the numbers that have been sent,
that have succeeded, and that have failed.
<dt> result
<dd> Describes results.
Includes a "state" (whether the result has been dispatched).
Stores a number of items relevant only after the
result has been returned: CPU time, exit status, and validation status.
</dl>