Synnefo » snf-ganeti

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  <!ENTITY dhdate      "<date>February 12, 2009</date>">

  <!-- SECTION should be 1-8, maybe w/ subsection other parameters are

       allowed: see man(7), man(1). -->

  <!ENTITY dhsection   "<manvolnum>8</manvolnum>">

  <!ENTITY dhucpackage "<refentrytitle>gnt-debug</refentrytitle>">

  <!ENTITY dhpackage   "gnt-debug">

  <!ENTITY debian      "<productname>Debian</productname>">

  <!ENTITY gnu         "<acronym>GNU</acronym>">

  <!ENTITY gpl         "&gnu; <acronym>GPL</acronym>">

  <!ENTITY footer SYSTEM "footer.sgml">

]>

<refentry>

  <refentryinfo>

    <copyright>

      <year>2006</year>

      <year>2007</year>

      <year>2008</year>

      <year>2009</year>

      <holder>Google Inc.</holder>

    </copyright>

    &dhdate;

  </refentryinfo>

  <refmeta>

    &dhucpackage;

    &dhsection;

    <refmiscinfo>ganeti 2.0</refmiscinfo>

  </refmeta>

  <refnamediv>

    <refname>&dhpackage;</refname>

    <refpurpose>debug commands</refpurpose>

  </refnamediv>

  <refsynopsisdiv>

    <cmdsynopsis>

      <command>&dhpackage; </command>

      <arg choice="req">command</arg>

      <arg>arguments...</arg>

    </cmdsynopsis>

  </refsynopsisdiv>

  <refsect1>

    <title>DESCRIPTION</title>

    <para>

      The <command>&dhpackage;</command> is used for debugging the

      ganeti system.

    </para>

  </refsect1>

  <refsect1>

    <title>COMMANDS</title>

    <refsect2>

      <title>ALLOCATOR</title>

      <cmdsynopsis>

        <command>allocator</command>

        <arg>--debug</arg>

        <arg>--dir <replaceable>DIRECTION</replaceable></arg>

        <arg choice="req">--algorithm <replaceable>ALLOCATOR</replaceable>

        </arg>

        <arg>--mode <replaceable>MODE</replaceable></arg>

        <arg>--mem <replaceable>MEMORY</replaceable></arg>

        <arg>--disks <replaceable>DISKS</replaceable></arg>

        <arg>--disk-template <replaceable>TEMPLATE</replaceable></arg>

        <arg>--nics <replaceable>NICS</replaceable></arg>

        <arg>--os-type <replaceable>OS</replaceable></arg>

        <arg>--vcpus <replaceable>VCPUS</replaceable></arg>

        <arg>--tags <replaceable>TAGS</replaceable></arg>

        <arg choice="req"><replaceable>instance</replaceable></arg>

      </cmdsynopsis>

      <para>

        Executes a test run of the <emphasis>iallocator</emphasis> framework.

      </para>

      <para>

        The command will build input for a given iallocator script

        (named with the <option>--algorithm</option> option), and

        either show this input data (if

        <replaceable>DIRECTION</replaceable> is

        <emphasis>in</emphasis>) or run the iallocator script and show

        its output (if <replaceable>DIRECTION</replaceable> is

        <emphasis>out</emphasis>).

      </para>

      <para>

        If the <replaceable>MODE</replaceable> is

        <emphasis>allocate</emphasis>, then an instance definition is

        built from the other arguments and sent to the script,

        otherwise (<replaceable>MODE</replaceable> is

        <emphasis>relocate</emphasis>) an existing instance name must

        be passed as the first argument.

      </para>

      <para>

        This build of ganeti will look for iallocator scripts in the

        following directories: <filename

        class="directory">@CUSTOM_IALLOCATOR_SEARCH_PATH@</filename>;

        for more details about this framework, see the HTML or PDF

        documentation.

      </para>

    </refsect2>

    <refsect2>

      <title>DELAY</title>

      <cmdsynopsis>

        <command>delay</command>

        <arg>--debug</arg>

        <arg>--no-master</arg>

        <arg choice="opt" rep="repeat">-n <replaceable>NODE</replaceable></arg>

        <arg choice="req"><replaceable>duration</replaceable></arg>

      </cmdsynopsis>

      <para>

        Run a test opcode (a sleep) on the master (internally in the

        command) and on selected nodes (via an RPC call). This server

        no other purpose but to execute a test operation.

      </para>

      <para>

        The <option>-n</option> option can be given multiple times to

        select the nodes for the RPC call. By default, the delay will

        also be executed on the master, unless the

        <option>--no-master</option> option is passed.

      </para>

      <para>

        The <replaceable>delay</replaceable> argument will be

        interpreted as a floating point number.

      </para>

    </refsect2>

    <refsect2>

      <title>SUBMIT-JOB</title>

      <cmdsynopsis>

        <command>submit-job</command>

        <arg choice="opt">--verbose</arg>

        <arg choice="opt">--timing-stats</arg>

        <arg choice="opt">--job-repeat <option>N</option></arg>

        <arg choice="opt">--op-repeat <option>N</option></arg>

        <arg choice="req" rep="repeat">opcodes_file</arg>

      </cmdsynopsis>

      <para>

        This command builds a list of opcodes from JSON-format files

        and submits for each file a job to the master daemon. It can

        be used to test some options that are not available via the

        command line.

      </para>

      <para>

        The <option>verbose</option> option will job the job IDs of

        the submitted jobs and the progress in waiting for the jobs;

        the <option>timing-stats</option> option will show some

        overall statistics with the number of total opcodes and jobs

        submitted, and time time for each stage (submit, exec, total).

      </para>

      <para>

        The <option>job-repeat</option> and <option>op-repeat</option>

        options allow to submit multiple copies of the passed

        arguments; the job repeat will cause N copies of each job

        (input file) to be submitted (equivalent to passing the

        arguments N times) while the op repeat will cause each job to

        contain multiple copies of the opcodes (equivalent to each

        file containing N copies of the opcodes).

      </para>

    </refsect2>

  </refsect1>

  &footer;

</refentry>

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