Hi Jiangjun,
It looks like maybe you are showing the output of a Rocks tool of some
sort at the bottom of your email, rather than the output of pvfs2-ping?
I'm not familiar with Rocks, so I can't help with that part. The "read
only file system" message is unrelated to PVFS itself.
Can you show the output of "mount -t pvfs2" and "pvfs2-ping -m
/mnt/pvfs2" on one of your compute nodes?
-Phil
On 04/26/2010 10:29 PM, JiangjunZheng wrote:
Dear all,
I am now using Rocks+PVFS2 for a cluster with myrinet-gm. After I run
an program (MEEP) it shows an error that it fails to write hdf5 files
to /mnt/pvfs2.
The error messages:
-------------------------------------------------------------------
error on line 450 of h5file.cpp: error opening HDF5 output file
#000: H5F.c line 1992 in H5Fcreate(): unable to create file
major(04): File interface
minor(17): Unable to open file
#001: H5F.c line 1749 in H5F_open(): unable to open file
major(04): File interface
minor(17): Unable to open file
#002: H5FD.c line 1033 in H5FD_open(): open failed
major(22): Virtual File Layer
minor(29): Unable to initialize object
#003: H5FDmpio.c line 802 in H5FD_mpio_open(): MPI_File_open failed
major(03): Internal HDF5 error
minor(78): Some MPI function failed
#004: H5FDmpio.c line 802 in H5FD_mpio_open(): MPI_ERR_IO:
input/output error
major(03): Internal HDF5 error
minor(79): MPI Error String
meep: error on line 450 of h5file.cpp: error opening HDF5 output file
#000: H5F.c line 1992 in H5Fcreate(): unable to create file
-----------------------------------------------------------------------
The configuration of PVFS2 on rocks is by using "rocks sync pvfs"
after installation of every node. By using "./pvfs2-ping -m
/mnt/pvfs2", it shows:
-----------------------------------------------------------------------
io_nodes: ['pvfs2-io-0-2', 'pvfs2-io-0-1']
metadata_nodes: ['nanohv']
Stopping PVFS2 server:
[S 04/26 15:04] PVFS2 Server on node pvfs2-io-0-2 version 2.8.1
starting...
[D 04/26 15:04] PVFS2 Server: storage space removed. Exiting.
[S 04/26 15:04] PVFS2 Server on node pvfs2-io-0-2 version 2.8.1
starting...
[D 04/26 15:04] PVFS2 Server: storage space created. Exiting.
Starting PVFS2 server: [S 04/26 15:04] PVFS2 Server on node
pvfs2-io-0-2 version 2.8.1 starting...
[ OK ]
Stopping PVFS2 server:
[S 04/26 15:04] PVFS2 Server on node pvfs2-io-0-1 version 2.8.1
starting...
[D 04/26 15:04] PVFS2 Server: storage space removed. Exiting.
[S 04/26 15:04] PVFS2 Server on node pvfs2-io-0-1 version 2.8.1
starting...
[D 04/26 15:04] PVFS2 Server: storage space created. Exiting.
Starting PVFS2 server: [S 04/26 15:04] PVFS2 Server on node
pvfs2-io-0-1 version 2.8.1 starting...
[ OK ]
Stopping PVFS2 server: cat: /var/run/pvfs2.pid: No such file or directory
kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec
... or kill -l [sigspec]
[S 04/26 15:04] PVFS2 Server on node nanohv version 2.8.1 starting...
[D 04/26 15:04] PVFS2 Server: storage space removed. Exiting.
[S 04/26 15:04] PVFS2 Server on node nanohv version 2.8.1 starting...
[D 04/26 15:04] PVFS2 Server: storage space created. Exiting.
Starting PVFS2 server: [S 04/26 15:04] PVFS2 Server on node nanohv
version 2.8.1 starting...
[ OK ]
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
variables 100% 77 0.1KB/s 00:00
scp: /opt/pvfs2/conf/variables: Read-only file system
variables 100% 77 0.1KB/s 00:00
Unmounting PVFS2 Filesystem: Mounting PVFS2 Filesystem:
-----------------------------------------------------------------------------
what does the "Read-only file system" mean? I can copy files to the
/mnt/pvfs2 folder from both the compute nodes and the server node freely.
Any suggestion is appreciated. Thanks in advance.
Best,
Jiangjun
------------------------------------------------------------------------
???????????????????????? <http://ym.163.com/?from=od2>
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