On Wed, 16 Dec 2009 16:31:22 -0800 Sunil Mushran <sunil.mush...@oracle.com> wrote:
> Brad Plant wrote: > > I have this happen on different file systems running different mainline > > kernel versions created with different versions of ocfs2-tools. I've seen 1 > > file system "fill up" with only 40% odd in use according to df. What's > > interesting is that while 1 node can't write anymore, another node (only 2 > > nodes mounted rw) will still be able to write to the FS, but neither will > > be able to completely fill the FS. > > > > I have created new ocfs2 file systems and the problem doesn't seem to occur > > (or it gets very close be actually being full), but weeks/months later > > after being in use, the problem develops. The FS I mentioned above that > > filled up at ~40% use was about 6 months old and you could say it did it's > > fair share of "work". > > > > I just dumped some 1GB files in a directory using dd to fill up a FS (full > > at 87%) to that I could collect some debugfs.ocfs2 information. Upon not > > being able to create any further 1GB files (operations on the FS got really > > slow), I successfully created some 10MB files. I then created 100+ 1MB > > files using dd. What seemed strange is that dd kept returning "no space > > left on device", but it would always write 995328 bytes of data to the file. > > > > dd if=/dev/zero of=2156 bs=1k count=1k > > dd: writing `2156': No space left on device > > 973+0 records in > > 972+0 records out > > 995328 bytes (995 kB) copied, 0.0551648 s, 18.0 MB/s > > > > dd if=/dev/zero of=2157 bs=1k count=1k > > dd: writing `2157': No space left on device > > 973+0 records in > > 972+0 records out > > 995328 bytes (995 kB) copied, 0.0545104 s, 18.3 MB/s > > This looks like bz#1189. > http://oss.oracle.com/bugzilla/show_bug.cgi?id=1189 > > We are working on the fix. The patch is in review. > http://oss.oracle.com/osswiki/OCFS2/SmallTasksList > > If all goes well, the next release will have the fix. Thanks for the reply Sunil. I read through the 2 links you provided, but I have a question. The info mentioned modifications to mkfs to pre-allocate some area for extent stuff. Does this mean that we would have to create a new FS to fix the problem or will there also be a fix in the kernel that allows files to be moved on-disk to create some contiguous free space? Cheers, Brad _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com http://oss.oracle.com/mailman/listinfo/ocfs2-users
