boolean forceDefrag ( ) { long megas = properties . getIntegerProperty ( HsqlDatabaseProperties . hsqldb_defrag_limit , 200 ) ; long defraglimit = megas * 1024L * 1024 ; long lostSize = cache . freeBlocks . getLostBlocksSize ( ) ; return lostSize > defraglimit ; }
Returns true if lost space is above the threshold