[rdiff-backup-users] Exception 'CRC check failed'

[Guenevere Prawiroatmodjo]

Hello,

My last backup failed because of a hardware error, which probably caused 
some corrupt files in the process. When I use --check-desination-dir on 
the backup folder the following error msg appears:


%rdiff-backup --check-destination-dir vvtp.backup
Exception 'CRC check failed' raised of class 'exceptions.IOError':
  File "/usr/lib/python2.3/site-packages/rdiff_backup/robust.py", line 32, 
in check_common_error
    try: return function(*args)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
459, in get_fp
    current_fp = self.get_first_fp()
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
496, in get_first_fp
    rpath.copyfileobj(fp, current_fp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/rpath.py", line 58, 
in copyfileobj
    inbuf = inputfp.read(blocksize)
  File "/usr/lib/python2.3/gzip.py", line 224, in read
    self._read(readsize)
  File "/usr/lib/python2.3/gzip.py", line 289, in _read
    self._read_eof()
  File "/usr/lib/python2.3/gzip.py", line 308, in _read_eof
    raise IOError, "CRC check failed"

Exception 'CRC check failed' raised of class 'exceptions.IOError':
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 295, 
in error_check_Main
    try: Main(arglist)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 315, 
in Main
    take_action(rps)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 273, 
in take_action
    elif action == "check-destination-dir": CheckDest(rps[0])
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 781, 
in CheckDest
    dest_rp.conn.regress.Regress(dest_rp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/regress.py", line 
71, in Regress
    for rf in iterate_meta_rfs(mirror_rp, inc_rpath): ITR(rf.index, rf)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/rorpiter.py", line 
281, in __call__
    last_branch.fast_process(*args)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/regress.py", line 
267, in fast_process
    if rf.metadata_rorp.isreg(): self.restore_orig_regfile(rf)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/regress.py", line 
295, in restore_orig_regfile
    rf.mirror_rp.write_from_fileobj(rf.get_restore_fp())
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
485, in get_restore_fp
    return robust.check_common_error(error_handler, get_fp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/robust.py", line 32, 
in check_common_error
    try: return function(*args)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
459, in get_fp
    current_fp = self.get_first_fp()
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
496, in get_first_fp
    rpath.copyfileobj(fp, current_fp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/rpath.py", line 58, 
in copyfileobj
    inbuf = inputfp.read(blocksize)
  File "/usr/lib/python2.3/gzip.py", line 224, in read
    self._read(readsize)
  File "/usr/lib/python2.3/gzip.py", line 289, in _read
    self._read_eof()
  File "/usr/lib/python2.3/gzip.py", line 308, in _read_eof
    raise IOError, "CRC check failed"

Traceback (most recent call last):
  File "/usr/bin/rdiff-backup", line 23, in ?
    rdiff_backup.Main.error_check_Main(sys.argv[1:])
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 295, 
in error_check_Main
    try: Main(arglist)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 315, 
in Main
    take_action(rps)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 273, 
in take_action
    elif action == "check-destination-dir": CheckDest(rps[0])
  File "/usr/lib/python2.3/site-packages/rdiff_backup/Main.py", line 781, 
in CheckDest
    dest_rp.conn.regress.Regress(dest_rp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/regress.py", line 
71, in Regress
    for rf in iterate_meta_rfs(mirror_rp, inc_rpath): ITR(rf.index, rf)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/rorpiter.py", line 
281, in __call__
    last_branch.fast_process(*args)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/regress.py", line 
267, in fast_process
    if rf.metadata_rorp.isreg(): self.restore_orig_regfile(rf)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/regress.py", line 
295, in restore_orig_regfile
    rf.mirror_rp.write_from_fileobj(rf.get_restore_fp())
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
485, in get_restore_fp
    return robust.check_common_error(error_handler, get_fp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/robust.py", line 32, 
in check_common_error
    try: return function(*args)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
459, in get_fp
    current_fp = self.get_first_fp()
  File "/usr/lib/python2.3/site-packages/rdiff_backup/restore.py", line 
496, in get_first_fp
    rpath.copyfileobj(fp, current_fp)
  File "/usr/lib/python2.3/site-packages/rdiff_backup/rpath.py", line 58, 
in copyfileobj
    inbuf = inputfp.read(blocksize)
  File "/usr/lib/python2.3/gzip.py", line 224, in read
    self._read(readsize)
  File "/usr/lib/python2.3/gzip.py", line 289, in _read
    self._read_eof()
  File "/usr/lib/python2.3/gzip.py", line 308, in _read_eof
    raise IOError, "CRC check failed"
IOError: CRC check failed


I'm using rdiff-backup version 1.1.5 on a Linux 2.6.16.30 debian 
distribution.

How do I solve this error? If the broken hardware is replaced, should I 
make a new backup or just fix the corrupt files? Could there be any other 
corrupt hardware causing this problem (like RAM)?

If you have any suggestions, please let me know.


Thanks,

Guenevere