Am Sun, 15 Feb 2009 21:38:54 -0800 (PST) schrieb Matthew Dillon <[email protected]>:
> :I have what appears to be a 'Catch 22', wherein: > : > :hammer mirror-stream /master <user>@<remote_IP>:/new_slave > : > :returns: > : > :PFS slave /new-slave does not exist. > :Do you want to create a new slave PFS? (yes|no) No terminal for > response :Aborting operation > :validate_mrec_header: short read > : > :'No terminal for response' .was ass u me ed to be a byproduct of > comign :in off an Xfce4-terminal (Xorg & Xfce4 are quite happy on > 2.3.0, BTW) : > :Dropped back out to the raw tty0 console and tried it from there. > : > :No joy. > > Definitely a bug in the hammer utility, I'm not sure there is > anything I can do about it though because the remote ssh > connection has no channel to accept a Y or N answer... stdin and > stdout are used for the protocol stream and I think stderr is output > only. > > In anycase, I think what this means is that this feature currently > only works if the slave is local (non-ssh connection). So you > would be able to do it with <remote_master> <local_slave>. Hm, I remember that we implemented this feature (auto-creation of slaves) so that it can operate over ssh. And IIRC, it once worked for me using ssh (I am not sure if this was a remote machine or not). Does this mean, it is broken? > :Command *appear* to succeed if/as/when I *manually* create > 'new_slave' :in advance with a matching shared_uuid. A local > mirror-copy to it :suceeds, with new_slave showing the files mirrored. > : > :However, while the -vvv flag gives 5-sec updates, they all show a > newer :starting point that pfs-status has for the target, and the > contents of :the slave never change. > > You must access the slave via its softlink to get the latest > version synced from the master. If you try to access the slave via a > null-mount you will be accessing a snapshot of the slave, not the > current state of the slave. The null mount locks in the transaction > id of the slave. > > :By way of contrast, mirror-stream between on-box master and on-box > slave : - same command otherwise - works fine. No chdir needed to > see the :updates, just a 'View, Reload' in thunar and sputniks. > > You are probably accessing it via the softlink, yes? The gui is > probably using an absolute path. If you were to CD into a > sub-directory (even through the softlink), you would be accessing a > snapshot as-of when you did the CD, not the latest synced copy. > > :Query: Can the loop that seeks a 'yes' be changed to a 5-second > :countdown-timer with a message such as: > : > :Creating <new_slave> Hit Ctrl-c to abort > : > :.absent which it JFDI. > : > :Thanks, > : > :Bill Hacker > > That won't work, the target over an ssh link has no tty channel. > > Adding an option to create the slave automatically and passing it > to the target hammer utility when it is run via the ssh, so it never > has to ask at all, would work. If someone would like to do that and > submit a patch, I don't think it would take more then 20 minutes of > programming. You mean, something like a -f (force) option? Should be damn easy to implement. I can do that, once I sit in front of a real computer (with DragonFly) again :) Regards, Michael
