scp or rsync multiple files in parallel from a remote host
Hi.
I'm trying to speed up an rsync command by running it in parallel. There's no real option for this other than if the files are in multiple directories (which they're not). And even then there's no way of knowing if rsync has succeeded as the process is running in the background .. and there's no return code from the process id. Any ideas?
I thought about just using scp but scripting it is proving trickier than I thought and I'm getting errors on the for loop when I try to introduce variables into the ssh part:
E.g.
Code:
RHOST=srv245005
CCMD="ls /db/remote_backup_area"
for BackupFile in 'ssh -q oracle@${RHOST} ${CCMD}'; do
echo "attempting to copy file: " $BackupFile
scp -p $hostname:/db/remote_backup_area/$file /db/local_dump_area
# or use rsync
#rsync -av -e ssh oracle@${RHOST}:/db/remote_backup_area/${BackupFile} /db/local_dump_area"
done
exit
Any help much appreciated.
Moderator's Comments:
code tags please
Last edited by jim mcnamara; 08-06-2012 at 02:47 PM..
I need to know how to successfully back up(and compress) files from a local machine to a remote host.
Will this work?
tar -cvf backup.tar -C /user/somedir | gzip backup.tar | rsh some.domain.com/user/somedir
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---
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Hope all are doing well.
We use scp (some times sftp and rsync also) for transferring big files (around 2GB each ) from 1 Network to another Network.
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Discussion started by: mohtashims
1 Replies
LEARN ABOUT DEBIAN
rsync_selinux
rsync_selinux(8) rsync Selinux Policy documentation rsync_selinux(8)NAME
rsync_selinux - Security Enhanced Linux Policy for the rsync daemon
DESCRIPTION
Security-Enhanced Linux secures the rsync server via flexible mandatory access control.
FILE_CONTEXTS
SELinux requires files to have an extended attribute to define the file type. Policy governs the access daemons have to these files. If
you want to share files using the rsync daemon, you must label the files and directories public_content_t. So if you created a special
directory /var/rsync, you would need to label the directory with the chcon tool.
chcon -t public_content_t /var/rsync
To make this change permanent (survive a relabel), use the semanage command to add the change to file context configuration:
semanage fcontext -a -t public_content_t "/var/rsync(/.*)?"
This command adds the following entry to /etc/selinux/POLICYTYPE/contexts/files/file_contexts.local:
/var/rsync(/.*)? system_u:object_r:publix_content_t:s0
Run the restorecon command to apply the changes:
restorecon -R -v /var/rsync/
SHARING FILES
If you want to share files with multiple domains (Apache, FTP, rsync, Samba), you can set a file context of public_content_t and pub-
lic_content_rw_t. These context allow any of the above domains to read the content. If you want a particular domain to write to the pub-
lic_content_rw_t domain, you must set the appropriate boolean. allow_DOMAIN_anon_write. So for rsync you would execute:
setsebool -P allow_rsync_anon_write=1
BOOLEANS
system-config-selinux is a GUI tool available to customize SELinux policy settings.
AUTHOR
This manual page was written by Dan Walsh <dwalsh@redhat.com>.
SEE ALSO selinux(8), rsync(1), chcon(1), setsebool(8), semanage(8)dwalsh@redhat.com 17 Jan 2005 rsync_selinux(8)
08-06-2012
