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// Test removal of Records that have been reused since the remove operation began. SERVER-5198
t = db.jstests_removeb;
t.drop();
t.ensureIndex( { a:1 } );
// Make the index multikey to trigger cursor dedup checking.
t.insert( { a:[ -1, -2 ] } );
t.remove();
// Insert some data.
for( i = 0; i < 20000; ++i ) {
t.insert( { a:i } );
}
db.getLastError();
p = startParallelShell(
// Wait until the remove operation (below) begins running.
'while( db.jstests_removeb.count() == 20000 );' +
// Insert documents with increasing 'a' values. These inserted documents may
// reuse Records freed by the remove operation in progress and will be
// visited by the remove operation if it has not completed.
'for( i = 20000; i < 40000; ++i ) {' +
' db.jstests_removeb.insert( { a:i } );' +
' db.getLastError();' +
' if (i % 1000 == 0) {' +
' print( i-20000 + \" of 20000 documents inserted\" );' +
' }' +
'}'
);
// Remove using the a:1 index in ascending direction.
t.remove( { a:{ $gte:0 } } );
assert( !db.getLastError(), 'The remove operation failed.' );
p();
t.drop();
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