Date: Thu, 28 Jul 2005 14:49:46 -0700 (PDT) From: Philip Hallstrom <freebsd@philip.pjkh.com> To: "Marc G. Fournier" <scrappy@hub.org> Cc: freebsd-questions@freebsd.org Subject: Re: Determine processing holding open a 52+Gig file ... Message-ID: <20050728144620.A67924@wolf.pjkh.com> In-Reply-To: <20050728183517.O43872@ganymede.hub.org> References: <20050728183517.O43872@ganymede.hub.org>
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> 'k, this is the second time its happened ... on a file system that is > currently 35% full (52G free), all the disk space disappeared ... > > Is there a way of finding out what process is holding open this "immense" > file? I'm pretty sure lsof can tell you... either just plain "lsof" or maybe with the directory name... # lsof +D /tmp COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME postgres 66218 postgres 5u unix 0xd9c93680 0t0 /tmp/.s.PGSQL.5432 sshd 66325 greg 7u unix 0xd9d02800 0t0 /tmp/ssh-xIDIHoLn/agent.66325 +D D This option causes lsof to search for all open instances of directory D and all the files and directories it contains to its complete depth. Processing of the +D option does not follow symbolic links within D unless the -x or -x l option is also specified. Nor does it search for open files on file system mount points on subdirectories of D unless the -x or -x f option is also specified. Note: the authority of the user of this option limits it to searching for files that the user has permission to examine with the system stat(2) function. Further note: lsof may process this option slowly and require a large amount of dynamic memory to do it. This is because it must descend the entire directory tree, rooted at D, calling stat(2) for each file and directory, building a list of all the files it finds, and searching that list for a match with every open file. When directory D is large, these steps can take a long time, so use this option prudently.
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