jstests/disk/quota.js


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// Check functioning of --quotaFiles parameter, including with respect to SERVER-3293 ('local' database).

baseName = "jstests_disk_quota";

var m = MongoRunner.runMongod({quotaFiles: 2, smallfiles: ""});
db = m.getDB( baseName );

big = new Array( 10000 ).toString();

// Insert documents until quota is exhausted.
var coll = db[ baseName ];
var res = coll.insert({ b: big });
while( !res.hasWriteError() ) {
    res = coll.insert({ b: big });
}

dotTwoDataFile = baseName + ".2";
files = listFiles( m.dbpath );
for( i in files ) {
    // Since only one data file is allowed, a .0 file is expected and a .1 file may be preallocated (SERVER-3410) but no .2 file is expected.
    assert.neq( dotTwoDataFile, files[ i ].baseName );
}

dotTwoDataFile = "local" + ".2";
// Check that quota does not apply to local db, and a .2 file can be created.
l = m.getDB( "local" )[ baseName ];
for( i = 0; i < 10000; ++i ) {
    assert.writeOK(l.insert({ b: big }));
    dotTwoFound = false;
    if ( i % 100 != 0 ) {
        continue;
    }
    files = listFiles( m.dbpath );
    for( f in files ) {
     	if ( files[ f ].baseName == dotTwoDataFile ) {
         	dotTwoFound = true;
        }
    }
    if ( dotTwoFound ) {
     	break;   
    }
}

assert( dotTwoFound );