Issue with rebuilding poller cache on cacti

Hi,
I have added around 65000 graphs on the cacti server for monitoring. Now the newly added rrds won't start updatingunless I rebuilt the poller cache. The issue is when I try to rebuild the poller cache is that I get the following error.Kindly help me in this regard.
PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 71 bytes) in /var/www/cacti/cli/rebuild_poller_cache.php on line 104

/* start rebuilding the poller cache */if (sizeof($poller_data) > 0) {        foreach ($poller_data as $data) {                if (!$debug) print ".";                $local_data_ids[] = $data["id"];line: 104>>  $poller_items = array_merge($poller_items, update_poller_cache($data["id"]));
                debug("Data Source Item '$current_ds' of '$total_ds' updated");                $current_ds++;        }
RegardsRizwan 		 	   		  
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