Re: [BackupPC-users] problems on Red Hat Enterprise Linux 6.0

Shang-Lin Chen Mon, 09 Apr 2012 18:27:49 -0700

On 04/09/2012 01:20 PM, Pedro M. S. Oliveira wrote:


Check out selinux, use audit2allow to enable ssh root access.

selinux is disabled on this host, and the user on the backup server islogging into the backuppc account on the host and running sudo, so Idon't think it needs ssh access to root.

On the other side it appears that you have a dirty shell you may tryrsync -e. Another guess is that you are trying to backup a device,socket or other special file and still another one, check thebackuppctopdir (wherever its mounted)

I tried adding "-e ssh" to the rsync command before the argument list,and I'm getting the same results.

As a test, I also tried only backing up a single directory containingone file, instead of the entire system. That backup also hung until Ikilled it, with the Xferlog showing the tcgetattr error, so I don'tthink there are any special files causing problems.

The backup directory on the BackupPC server should be fine, since thebackups from all the other hosts are fine.


Still working on this...

Shang-Lin

Cheers,
Pedro Oliveira
www.linux-geex.com <http://www.linux-geex.com>

On Apr 9, 2012 7:18 PM, "Shang-Lin Chen" <sc...@gps.caltech.edu<mailto:sc...@gps.caltech.edu>> wrote:


    I recently upgraded a host from Red Hat Enterprise Linux 4 to Red Hat
    Enterprise Linux 6. Since then, BackupPC backups have not been
    working.

    I'm using rsync over ssh. I commented out 'Defaults requiretty' from
    visudo on the upgraded host and added '-tt' flags to the ssh
    command to
    get rid of error messages about lack of a tty. Now, when I start a
    full
    backup, the backup begins to run, but 20 hours later, it's still
    running
    until it exits with the message: "Aborting backup up after signal
    ALRM."
    This looks like a timeout. Full backups of this host used to take less
    than four hours.

    When I look in the last bad XferLog, I see the following:

    full backup started for directory / (baseline backup #433)
    Running: /usr/bin/ssh -tt -q -x -l backuppc myhostname sudo
    /usr/bin/rsync --server --sender --numeric-ids --perms --owner
    --group -D --links --hard-links --times --block-size=2048
    --recursive --one-file-system --ignore-times . /
    Xfer PIDs are now 15493
    Got remote protocol 1701274484
    Fatal error (bad version): tcgetattr: Invalid argument

    Sent exclude: /proc
    Sent exclude: /tmp
    Sent exclude: /wavearchive*
    Remote[66]: nvalid argument

    followed by a very long list of symbols and characters that
    probably indicate files being backed up, such as:

    ?I?O?    . ?VcOmA  mnt ?  K?A
    lost+found@?_O?A  netC?`O?A  media ?  K  dev  yk?O  boot ?x`OmA
    .autorelabel<?`O??  srv ?  K?A  opt ?iO         .autofsck<?`O??
     etc0 j O?A  backup1 +[jO?A  usr ??iO?A  sys ?`O  home ?  K
     cgroup O?=L  sbin0:>tOmA  miscC?`O?A  var M?`O  selinux ?o`O
     root ?? OhA  www     rcO?A  bin :>tOmA  lib08>tO  opt/sun ?iO?A:
     /javadb ?iO8  /register.htmlC4(??J??8  demo ?iO?A:  ocs ?iO:
     javadoc ?iO8  LICENSE^,%??J???
    index.html? ?  RELEASE-NOTES.html,V?  NOTICE% ?  3RDPARTY?+8  bin

?iO?A: lib ?iO8 demo/README.txtZ 1??J??8 templates ?iO?A?databases ? programs 8 templates/server.policy? 3??J??:

     databases/toursdb.jar?? 4??J8% ?iO?A?% /log 8&
    service.propertiesu 4??J??8( g0 ?iO?A8&
    log/logmirror.ctrl03??J???- .ctrl0?- 1.dat ?&seg0/c90.dat`?,
    311.dat ?, 150.dat ?, 371.dat ?, 1f1.dat ?, 31.dat@?, 161.dat ?,
    251.dat@?, 1b1.dat@?, 2c1.dat ?, 101.dat ?, 3b1.dat ?, a1.dat`?,
    111.dat ?, 461.dat ?, 20.datp?- 41.dat ?, 51.dat@?, 4c0.dat??,
    230.dat@ ?, 1d1.dat ?, 4d1.dat??, 361.dat ?- 40.dat :, b1.dat
    4??J:, 331.dat 3??J?, 260.dat ?, 3a1.dat ?, 41.dat@?, 200.dat ?-
    d0.dat ?, 420.dat0?, 130.dat ?, 211.dat ?, 10.dat ?, 3c0.dat ?-
    00.dat ?, 1a1.dat :, f0.dat 4??J:, 180.dat?3??J?, 221.dat ?,
    411.dat ?, 510.dat ?, 121.dat :, c0.dat 4??J:, 281.dat 3??J?,
    450.dat0?, 501.dat ?, 2a1.dat ?, 4f0.dat ?, 1c0.dat ?, 290.dat ?,
    480.dat  ?, 81.dat ?, 1e0.dat ?, 400.dat ?, 191.dat@?, 2e1.dat ?,
    3e1.dat ?, 4a1.datp?, 141.dat ?, 380.dat ?, 271.dat ?, 391.dat ?-
    51.dat ?, 491.datp?- e1.dat?:, e1.dat 4??J:, 321.dat 3??J?,
    2f0.dat ?, 441.dat ?, 71.dat ?, 4b1.dat??, 3d1.dat ?, 431.dat :,
    d1.dat 4??J:, 171.dat 3??J?, 2b1.dat ?, 60.dat ?, 3f1.dat ?,
    471.dat 8 programs/vtis ?iO?A? simplemobile 8        demo.html"
    3??J???
    csfull.cssV58  localcal ?iO?A8  derbylogo128_bluebg.png? 3??J??8
     toursdb ?iO?A?  nserverdemo ?  scores 8  navbar.html? 3??J???
     readme.html? 8  workingwithderby ?iO?A?  simple 8  vtis/README?
    2??J??8" java ?iO?A?" data ?" sql ?" java/org ?* /apache ?1
    /derbyDemo ?; /vtis ?@ /core ?A snapshot ?A example 8A
    core/VTIHelper.java8 2??J???F FlatFileVTI.javaM ?F XmlVTI.java?.?F
    VTITemplate.javaC|?FQueryRow.java? ?K VTIHelper.java 5?F
    XMLRow.javau ?F
    StringColumnVTI.javaa@?A#snapshot/SubscriptionSignature.javaN ?K
    napshotQuery.java| ?K ubscription.java?T?A example/VTIs.java? ?I
    DerbyJiraReportVTI.java? ?I WorldDBSnapshot.java? ?I
    ApacheServerLogVTI.javat ?I SubversionLogVTI.java? ?I
    LineListVTI.java" ?I PropertyFileVTI.java? ?"
    data/DerbyJiraReport.xml ? ?' svn_log.txt?t

    Could somebody help figure out what's going on here?

    Thanks,
    Shang-Lin

    
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--
Shang-Lin Chen
Southern California Earthquake Data Center (SCEDC)
System administrator/Programmer
http://www.data.scec.org

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Re: [BackupPC-users] problems on Red Hat Enterprise Linux 6.0

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