Files
mongo/jstests/disk/preallocate.js

45 lines
1.3 KiB
JavaScript

// check that there is preallocation, and there are 2 files
var baseName = "jstests_preallocate";
var m = MongoRunner.runMongod({});
var getTotalNonLocalSize = function() {
var totalNonLocalDBSize = 0;
m.getDBs().databases.forEach( function(dbStats) {
// We accept the local database's space overhead.
if (dbStats.name == "local") return;
// Databases with "sizeOnDisk=1" and "empty=true" dont' actually take up space o disk.
// See SERVER-11051.
if (dbStats.sizeOnDisk == 1 && dbStats.empty) return;
totalNonLocalDBSize += dbStats.sizeOnDisk;
});
return totalNonLocalDBSize;
}
assert.eq( 0, getTotalNonLocalSize() );
m.getDB( baseName ).createCollection( baseName + "1" );
// Windows does not currently use preallocation
expectedMB = 64 + 16;
if ( m.getDB( baseName ).serverBits() < 64 )
expectedMB /= 4;
assert.soon(function() { return getTotalNonLocalSize() >= expectedMB * 1024 * 1024; },
"\n\n\nFAIL preallocate.js expected second file to bring total size over " +
expectedMB + "MB" );
MongoRunner.stopMongod(m);
m = MongoRunner.runMongod({restart: true, cleanData: false, dbpath: m.dbpath});
size = getTotalNonLocalSize();
m.getDB( baseName ).createCollection( baseName + "2" );
sleep( 2000 ); // give prealloc a chance
assert.eq( size, getTotalNonLocalSize() );