1. 21 Dec, 2003 1 commit
  2. 20 Dec, 2003 2 commits
  3. 19 Dec, 2003 8 commits
  4. 18 Dec, 2003 7 commits
    • Leigh B. Stoller's avatar
      Added check to make sure that uid does not already exist. This is · 7e50b223
      Leigh B. Stoller authored
      usually handled via uid cookie we get back from the browser, but if
      the user Clicks stop or maybe has cookies off, we don't that info.
      7e50b223
    • Robert Ricci's avatar
      Add two new features to assign: · 40ada0ba
      Robert Ricci authored
      In the top file, you can provide a 'node-hint', which is similar to a
      'fix-node' in that it specifies a starting mapping for the virtual
      node. Unlike a fixed node, however, assign is allowed to move hinted
      nodes around all it wants.
      
      Add a '-t' option to assign that allows you to give a starting
      temperature, instead of going through the usual melting process.
      
      Together, these may be helpful with the pre-pass we're planning on
      incorporating into assign. During that pass, assign will be working
      on a coarsened version of the virtual graph, so there may be some
      places where decisions are made poorly due to the reduced information.
      After one run has been done with the coarsened version, we can run
      assign again with the full version of the graph, but with 'node-hints'
      that start virtual nodes where the first run decided. This will allow
      assign to fine-tune the results of the first mapping.
      
      Of course, we don't want this second run to take too long, so we'll
      want to start it with a low initial temperature (so that it basically
      just does hill-climbing), and probably use a fractional '-H' argument
      to prevent it from spending too long on large topologies.
      40ada0ba
    • Leigh B. Stoller's avatar
      Fix · 2c285e2a
      Leigh B. Stoller authored
      2c285e2a
    • Leigh B. Stoller's avatar
      Add log entry. · 1105ebe7
      Leigh B. Stoller authored
      1105ebe7
    • Leigh B. Stoller's avatar
      First try at solving the problem of validating user input for the · 8dbead16
      Leigh B. Stoller authored
      zillions of DB fields that we have to set. My solution was to add a
      meta table that describes what is a legal value for each table/slot
      for which we take from user input. The table looks like this right
      now, but is likely to adapt as we get more experience with this
      approach (or it might get tossed if it turns out to be a pain in the
      ass!).
      
      	CREATE TABLE table_regex (
      	  table_name varchar(64) NOT NULL default '',
      	  column_name varchar(64) NOT NULL default '',
      	  column_type enum('text','int','float') default NULL,
      	  check_type enum('regex','function','redirect') default NULL,
      	  check tinytext NOT NULL,
      	  min int(11) NOT NULL default '0',
      	  max int(11) NOT NULL default '0',
      	  comment tinytext,
      	  UNIQUE KEY table_name (table_name,column_name)
      	) TYPE=MyISAM;
      
      Entries in this table look like this:
      
      	('virt_nodes','vname','text','regex','^[-\\w]+$',1,32,NULL);
      
      Which says that the vname slot of the virt_nodes table (which we trust the
      user to give us in some form) is a text field to be checked with the given
      regex (perlre of course), and that the min/max length of the text field is
      1 and 32 chars respectively.
      
      Now, you wouldn't want to write the same regex over and over, and since we
      use the same fields in many tables (like pid, eid, vname, etc) there is an
      option to redirect to another entry (recursively). So, for "PID" I do this:
      
              ('eventlist','pid','text','redirect','projects:pid',0,0,NULL);
      
      which redirects to:
      
      	('projects','pid','text','regex','^[a-zA-Z][-\\w]+$',2,12,NULL);
      
      And, for many fields you just want to describe generically what could go
      into it. For that I have defined some default fields. For example, a user
      description:
      
              ('experiment,'usr_name','text','redirect','default:tinytext',0,0,NULL);
      
      which redirects to:
      
      	('default','tinytext','text','regex','^[\\040-\\176]*$',0,256,NULL);
      
      and this says that a tinytext (in our little corner of the database
      universe) field can have printable characters (but not a newline), and
      since its a tinytext field, its maxlen is 256 chars.
      
      You also have integer fields, but these are little more irksome in the
      details.
      
      	('default','tinyint,'int,'regex','^[\\d]+$',-128,127,NULL);
      
      and you would use this anyplace you do not care about the min/max values
      being something specific in the tinyint range. The range for a float is of
      course stated as an integer, and thats kinda bogus, but we do not have many
      floats, and they generally do not take on specific values anyway.
      
      A note about the min/max fields and redirecting. If the initial entry has
      non-zero min/max fields, those are the min mac fields used. Otherwise they
      come from the default. So for example, you can do this:
      
          ('experiments','mem_usage','int','redirect','default:tinyint',0,5,NULL);
      
      So, you can redirect to the standard "tinyint" regular expression, but you
      still get to define min/max for the specific field.
      
      Isn't this is really neat and really obtuse too? Sure, you can say it.
      
      Anyway, xmlconvert now sends all of its input through these checks (its
      all wrapped up in library calls), and if a slot does not have an entry, it
      throws an error so that we are forced to define entries for new slots as we
      add them.
      
      In the web page, I have changed all of the public pages (login, join
      project, new project, and a couple of others) to also use these checks.
      As with the perl code, its all wrapped up in a library. Lots more code
      needs to be changed of course, but this is a start.
      8dbead16
    • Leigh B. Stoller's avatar
      Minor changes and cleanup. Also fix up the problem with duplicate · da4a4125
      Leigh B. Stoller authored
      addslashes getting called, once in the web interface and again in the
      perl backend.
      da4a4125
    • Leigh B. Stoller's avatar
      Minor changes. · 710ddd95
      Leigh B. Stoller authored
      710ddd95
  5. 17 Dec, 2003 6 commits
  6. 16 Dec, 2003 16 commits