On 12/13/2012 02:37 PM, coni wrote: > Hi i've got a warning message in tail command: > "tail -f /vc/log/apache2/access_log" - report to bug. > > tail (GNU coreutils) 8.20 > Packaged by Gentoo (8.20 (p1.0)) > > - file system type ceph > > message: > > tail: unrecognized file system type 0x00c36400 for > '/vc/log/apache2/access_log'. > please report this to [email protected]. reverting to polling > > Regards: > Conrad.
Thanks for the report. As a distributed network file system, CEPH seems to be a "remote" file system, i.e. not supporting inotify. Conrad, would you mind giving us your full name, so that we can mention it correctly in THANKS.in? Here comes the patch. Have a nice day, Berny >From 5997134899c9abd5efd635a446fb1a3975483a82 Mon Sep 17 00:00:00 2001 From: Bernhard Voelker <[email protected]> Date: Fri, 14 Dec 2012 10:11:51 +0100 Subject: [PATCH] tail,stat: improve support for the ceph file system Teach tail -f that it must use polling on ceph file systems, and let stat -f --format=%T report the file system type name, "ceph". Website: http://ceph.com/ * src/stat.c (human_fstype): Add a case: ceph, 0x00c36400, remote. * NEWS (Improvements): Mention it. * THANKS.in: Update. Reported by Conrad <[email protected]> in http://bugs.gnu.org/13172. --- NEWS | 6 ++++++ THANKS.in | 1 + src/stat.c | 2 ++ 3 files changed, 9 insertions(+), 0 deletions(-) diff --git a/NEWS b/NEWS index e22d3a9..1ee2c17 100644 --- a/NEWS +++ b/NEWS @@ -59,6 +59,12 @@ GNU coreutils NEWS -*- outline -*- nl no longer supports the --page-increment option which was deprecated since coreutils-7.5. Use --line-increment instead. +** Improvements + + stat and tail now know about CEPH. stat -f --format=%T now reports the file + system type, and tail -f uses polling for files on CEPH file systems. + + ** Build-related Perl is now more of a prerequisite. It has long been required in order diff --git a/THANKS.in b/THANKS.in index f0ef9b8..802e52d 100644 --- a/THANKS.in +++ b/THANKS.in @@ -129,6 +129,7 @@ Clark Morgan [email protected] Clement Wang [email protected] Colin Plumb [email protected] Collin Rogowski [email protected] +Conrad ?? [email protected] Cray-Cyber Project http://www.cray-cyber.org Cristian Cadar [email protected] Cyril Bouthors [email protected] diff --git a/src/stat.c b/src/stat.c index 51f4b90..6283566 100644 --- a/src/stat.c +++ b/src/stat.c @@ -266,6 +266,8 @@ human_fstype (STRUCT_STATVFS const *statfsbuf) return "binfmt_misc"; case S_MAGIC_BTRFS: /* 0x9123683E local */ return "btrfs"; + case S_MAGIC_CEPH: /* 0x00c36400 remote */ + return "ceph"; case S_MAGIC_CGROUP: /* 0x0027E0EB local */ return "cgroupfs"; case S_MAGIC_CIFS: /* 0xFF534D42 remote */ -- 1.7.7
