.The Ceph Object Gateway requires applications to write sequentially
The Ceph Object Gateway requires applications to write sequentially from offset 0 to the end of a file. Attempting to write out of order causes the upload operation to fail. To work around this issue, use utilities like `cp`, `cat`, or `rsync` when copying files into NFS space. Always mount with the `sync` option.
Description of problem:
Cannot write a large size file on the NFS mount. Tried writing 500Mb but it fails with IO error.
[root@host mnt2]# dd if=/dev/urandom of=test2/file1 bs=10M count=50
dd: closing output file ‘test2/file1’: Input/output error
Considering S3 has a limit of 5GB in a single PUT operation, what is the maximum file size we can directly write in a directory in the NFS mount?
Version-Release number of selected component (if applicable):
ceph version 12.2.0-2.el7cp
Steps to Reproduce:
1. Configure NFS server on an RGW and configure NFS client and mount share with NFSv3.
2. Create a file and write 500Mb of data
3. Operation fails with IO error
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.