Hello I have a simple configuration of PVFS2 [version 1.5.1]. There exists one storage server and one Metadata server.
I start them up and test them from a client. The client has a pvfs2tab file at /etc/pvfs2tab containing: tcp://node15:3334/pvfs2-fs /mnt/pvfs2 pvfs2 defaults,noauto 0 0 tcp://node23:3334/pvfs2-fs /mnt/pvfs2 pvfs2 defaults,noauto 0 0 The first is the MDS and the second is the Storage I test this configuration with the pvfs2-ping utility at the client and it looks great Two clients [node01 and node02] are now used to benchmark PVFS2 using IOR. So I have the pvfs2tab file[as above] in the /etc/pvfs2tab locations at both these clients I then run IOR: #mpirun -np 2 ./IOR -a MPIIO -k -o pvfs2:/mnt/pvfs2/N002.test But I get a bunch of "poorly formatted protocol message received" errors. I have attached the log of one such run Im puzzled. I can run PVFS2 using its utilities like pvfs2-touch, pvfs2-mkdir, pvfs2-rm and pvfs2-ls . Additionally IOR has been built for MPI-IO. Any reasons why I get such errors? As I understand I must prefix "pvfs2" to the final location of the file with the mount point. I picked this hint up from a script to run IOR for PVFS at the fisheye archives of PVFS2 [http://www.pvfs.org/fisheye/browse/PVFS/test/automated/mpiio-tests.d/ior-mpiio-2?r=1.2.8.1] I also would not need the module at the kernel side since I am bypassing the kernel and going over the network- right? Moreover I do not wish to use POSIX. Thanks a ton! Nirmal Thacker
IOR-2.10.2: MPI Coordinated Test of Parallel I/O Run began: Tue Sep 16 15:22:26 2008 Command line used: ./IOR -a MPIIO -k -o pvfs2:/mnt/pvfs2/N002.testMachine: Linux node01 Summary: api = MPIIO (version=2, subversion=0) test filename = pvfs2:/mnt/pvfs2/N002.test access = single-shared-file ordering in a file = sequential offsets ordering inter file= no tasks offsets clients = 2 (1 per node) repetitions = 1 xfersize = 262144 bytes blocksize = 1 MiB aggregate filesize = 2 MiB [E 15:22:26.310390] Error: poorly formatted protocol message received. [E 15:22:26.310816] Protocol version mismatch: received major version 2 when expecting 5. [E 14:11:38.378370] Error: poorly formatted protocol message received. [E 14:11:38.378703] Protocol version mismatch: received major version 2 when expecting 5. [E 14:11:38.378806] Please verify your PVFS2 installation [E 14:11:38.378914] and make sure that the version is consistent. [E 14:11:38.379032] msgpairarray decode error: Protocol not supported [E 15:22:26.311476] Please verify your PVFS2 installation [E 15:22:26.311683] and make sure that the version is consistent. [E 15:22:26.311906] msgpairarray decode error: Protocol not supported [E 14:11:38.379983] Error: poorly formatted protocol message received. [E 14:11:38.380162] Protocol version mismatch: received major version 2 when expecting 5. [E 14:11:38.380267] Please verify your PVFS2 installation [E 14:11:38.380362] and make sure that the version is consistent. [E 14:11:38.380451] msgpairarray decode error: Protocol not supported [E 14:11:38.380563] ERROR: could not initialize any file systems in /etc/pvfs2tab. PVFS_util_init_defaults: No such device (error class: 0) [E 15:22:26.314888] Error: poorly formatted protocol message received. [E 15:22:26.315205] Protocol version mismatch: received major version 2 when expecting 5. [E 15:22:26.315418] Please verify your PVFS2 installation [E 15:22:26.315617] and make sure that the version is consistent. [E 15:22:26.315823] msgpairarray decode error: Protocol not supported [E 15:22:26.316037] ERROR: could not initialize any file systems in /etc/pvfs2tab. PVFS_util_init_defaults: No such device (error class: 0)
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