// Test unsafe management of nsdt on update command yield SERVER-3208

prefixNS = db.jstests_updatef;
prefixNS.save( {} );

t = db.jstests_updatef_actual;
t.drop();

t.save( {a:0,b:[]} );
for( i = 0; i < 1000; ++i ) {
	t.save( {a:100} );
}
t.save( {a:0,b:[]} );

db.getLastError();
// Repeatedly rename jstests_updatef to jstests_updatef_ and back.  This will
// invalidate the jstests_updatef_actual NamespaceDetailsTransient object.
s = startParallelShell( "for( i=0; i < 100; ++i ) { db.jstests_updatef.renameCollection( 'jstests_updatef_' ); db.jstests_updatef_.renameCollection( 'jstests_updatef' ); }" );

for( i=0; i < 20; ++i ) {
    t.update( {a:0}, {$push:{b:i}}, false, true );
}

s();