Can you try setting the work directory to
/media/ephemeral0/var/log/mesos-slaves
instead your symlink? We statvfs which IIUC should resolve symlinks.. but
perhaps it is computing the size of the volume that the symlink resides on.
You could test this with a simple program:
symlink.c:
#include <sys/statvfs.h>
#include <iostream>
int main()
{
// First check with the symlink.
struct statvfs buf;
if (::statvfs("/tmp/mesos", &buf) < 0) {
return ErrnoError();
}
std::cerr << "/tmp/mesos bytes free: " << buf.f_bavail * buf.f_frsize <<
std::endl;
// Now try the actual path.
if (::statvfs("/media/ephemeral0/var/log/mesos-slaves", &buf) < 0) {
return ErrnoError();
}
std::cerr << "/media/ephemeral0/var/log/mesos-slaves bytes free: " <<
buf.f_bavail * buf.f_frsize << std::endl;
}
$ gcc symlink.c
$ ./a.out
On Wed, Jul 10, 2013 at 11:38 AM, Gary Malouf <[email protected]> wrote:
> Also relevant (copied from UI):
>
> Active Slaves (see all <http://localhost:5050/#/slaves>)
> ID<http://localhost:5050/#/>
> Host <http://localhost:5050/#/> CPUs <http://localhost:5050/#/>
> Mem<http://localhost:5050/#/>
> Disk <http://localhost:5050/#/> Registered <http://localhost:5050/#/>
> …3744-1
> <http://localhost:5050/#/> mesos-test-02
> <http://localhost:5050/#/slaves/201307092108-1315739402-5050-3744-1> 1 3
> GB 1
> GB 21 hours ago <http://localhost:5050/#/> …3744-0
> <http://localhost:5050/#/> mesos-test-01
> <http://localhost:5050/#/slaves/201307092108-1315739402-5050-3744-0> 1 3
> GB 1
> GB 21 hours ago <http://localhost:5050/#/>
>
>
> On Wed, Jul 10, 2013 at 2:36 PM, Gary Malouf <[email protected]>
> wrote:
>
> > It says it is taking up 65% of the available disk space. This is strange
> > since I have the work directory (/tmp/mesos) symlinked to an instance
> > volume that has almost 150GB free.
> >
> > I've put the relative terminal output below - I think the strong
> > preference would be for mesos to sensibly detect the stuff rather than it
> > be explicitly enumerated in configuration.
> >
> > slave.cpp:1233] Current disk usage 64.76%. Max allowed age: 2.47days
> >
> > [root@mesos-test-02 log]# du -hcs /media/ephemeral0/
> > 13M /media/ephemeral0/
> > 13M total
> >
> > [root@mesos-test-02 log]# df -h
> > Filesystem Size Used Avail Use% Mounted on
> > /dev/xvde1 5.0G 3.2G 1.5G 69% /
> > tmpfs 1.8G 0 1.8G 0% /dev/shm
> > /dev/xvdf 394G 211M 374G 1% /media/ephemeral0
> >
> > [root@mesos-test-02 tmp]# ls -la
> > total 232
> > drwxrwxrwt. 4 root root 4096 Jul 10 18:33 .
> > dr-xr-xr-x. 22 root root 4096 Jul 9 16:49 ..
> > -rw-r--r-- 1 root root 217689 Jul 9 21:58 chronos-1.log
> > drwxr-xr-x 2 root root 4096 Jul 10 01:03 hsperfdata_root
> > drwxrwxrwt 2 root root 4096 Jul 9 15:46 .ICE-unix
> > lrwxrwxrwx 1 root root 38 Jul 9 20:03 mesos ->
> > /media/ephemeral0/var/log/mesos-slaves
> >
> >
> > Thanks,
> >
> > Gary
> >
> >
> >
> >
> > On Tue, Jul 9, 2013 at 4:11 PM, Gary Malouf <[email protected]>
> wrote:
> >
> >> Hi everyone,
> >>
> >> I have Mesos running with Chronos. The UI shows the disk space being
> >> very low (1GB), but I have the log and slave work directories symlinked
> to
> >> locations on a disk with 374GB of free space. How does the Mesos ui
> >> determine disk space?
> >>
> >> -Gary
> >>
> >
> >
>
