Ole ,
This does not work.
cat host |parallel -j2 rsync -Hav /home/User/xxx.sql {}:/home/User/xxx.sql
\;"ssh {} hostname \\\&\\\& /bin/mysql --user=root --password=password DB
</home/User/xxx.sql"
sh: ./\: Permission denied
sh: /home/User/xxx.sql: No such file or directory
building file list ... done
sent 92 bytes received 20 bytes 20.36 bytes/sec
total size is 677 speedup is 6.04
sh: ./\: Permission denied
sh: /home/User/xxx.sql: No such file or directory
building file list ... done
sent 92 bytes received 20 bytes 20.36 bytes/sec
total size is 677 speedup is 6.04
If i remove the " near the ssh {} then also it fails saying that file xxx.sql
not found (on localhost). I see the file is rsynced. but command fails to run.
thanks.
----- Original Message -----
From: Ole Tange <[email protected]>
To: p sena <[email protected]>
Cc: "[email protected]" <[email protected]>
Sent: Tuesday, July 9, 2013 10:58 PM
Subject: Re: help on remote ssh cmd
On Tue, Jul 9, 2013 at 5:58 AM, p sena <[email protected]> wrote:
> Seemed both the commands didn't worked ? But the way I showed you it worked
> ( parallel -j 1 --basefile some-file-2-copy -S H1,H2 ::: "hostname &&
> /home/username/that-file-copied" "hostname &&
> /home/username/that-file-copied") , is that way Ok, is it doing the things
> parallel ?
-j1 forces to run one job per host.
While the above will probably run "hostname &&
/home/username/that-file-copied" on both, that is not necessarily true
if you have many hosts: If the command finishes on H1 before GNU
Parallel gets the command started on H100, then GNU Parallel may start
it on H1 instead.
So what you are doing does not scale and may cause problems.
This guarantees what you want:
cat hosts.txt | parallel -j10 rsync -Hav
/home/username/that-file-copied {}:/home/username/that-file-copied \;
ssh {} hostname \\\&\\\& /home/username/that-file-copied
/Ole
