I upgraded kaltura 11.14 to 11.16 and when I executed kaltlog I see a repetitive PHP Notice every few seconds and isn´t see others problems:
PHP Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /srv_apl/kaltura/app/infra/log/KalturaLog.php on line 192