ID: 50807 Comment by: skasun at tucson dot com Reported By: skasun at tucson dot com Status: Feedback Bug Type: Network related Operating System: OS X Leopard Server PHP Version: 5.3.1 New Comment:
Just a follow up, it is indeed not PHP's fault (thanks Rasmus, your response helped us determine the true cause). We have determined that launching a background process (apache for example) from the command line and then logging out will cause OSX to flag that process's Context for garbage collection. That will prevent that process's children from looking up Mach ports, which will cause getaddrinfo to return EAI_AGAIN. Since not all children are GC'd, some apache processes work, others fail. Apparently this affects Leopard and Snow Leopard. Our fix was as simple as running Apache from GNU screen. Previous Comments: ------------------------------------------------------------------------ [2010-01-20 18:30:08] [email protected] PHP doesn't do anything magic here. We are simply calling your system's getaddrinfo function. The code looks like this: if ((n = getaddrinfo(host, NULL, &hints, &res))) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "php_network_getaddresses: getaddrinfo failed: %s", PHP_GAI_STRERROR(n)); } getaddrinfo() returns 0 on success. And as you can see from the code, the error is coming from your getaddrinfo() low-level call. That error message corresponds to an EAI_AGAIN error from the call. On my system the man page just says: EAI_AGAIN The name server returned a temporary failure indication. Try again later. So, I am not sure how to help you here. I see nothing wrong with the code as evidenced by the fact that it works most of the time for you. Can you check the logs of your dns server and see why you might be getting temporary failures there? ------------------------------------------------------------------------ [2010-01-20 18:20:51] skasun at tucson dot com Description: ------------ We keep sporadically getting this error: Warning: file_get_contents() [function.file-get-contents]: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in [path to script] on line XX It has nothing to do with DNS on the machine. I can have dns_get_record return a valid response on the exact same page as that error. It's also not consistent. getaddrinfo works 90% of the time, but randomly, without any changes to the machine or the scripts, it will give the above error. Reproduce code: --------------- $page=file_get_contents("http://google.com";); Expected result: ---------------- The contents of google.com gets put into $page Actual result: -------------- 90% of the time, we get the expected result.. but then it will start failing and it may take several page reloads for it to start magically working again. Warning: file_get_contents() [function.file-get-contents]: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in [path to script] on line XX ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=50807&edit=1
