I have got four webservers and one fileserver, all running Karmic and kernel 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux. A folder on the fileserver on an EXT3 file system has been exported using NFSv3 with these options: rw,async,no_subtree_check and mounted on all four webservers with these options: defaults,rsize=32768,wsize=32768,noatime The webservers run Apache+PHP+APC. Some php-files include other php-files from the nfs mount, and are requested by users very frequently (~ 100 times per second). Sometimes but not always if I alter an included php-file using FTP (the FTP server is ProFTPD and runs on the fileserver), the file seems missing: user@webserver1: ~ $ ls --full-time -al /path/to/included/file.php ls: cannot access /path/to/included/file.php: No such file or directory I can repeat this command for hours, but the file keeps missing. Until I query the directory: user@webserver1: ~ $ ls --full-time -al /path/to/included/ | grep file -rwxr-xr-x 1 1002 1002 14294 2010-07-04 21:11:30.000000000 +0200 file.php and then the first command also works. Any suggestion would be welcome. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
