When a user use "rm -rf" to transaction /checkpoint file , how to recovery?

Question

Hi
I have some question.
TimesTen DataStore been started, and Transaction Log / Checkpoint file to rm file when a user accidentally,
Data for the current memory is there a way to recover?
Thank you
GooGyum

Answer 1

First, I would say though that this is probably not considered supported way to recover from such a drastic delete, but you can give this a try, they can test it out first.
If the data store is still loaded in memory,
and say the dsn is for purpose of example, "rmdsn"
and then like your user I rm rmdsn.ds*;
ttIsql rmdsn
call ttckpt();
call ttckpt();
I think if they had just deleted the checkpoint files this would work,
if I though also rm rmdsn.log* (delete the log files)
You would get an error like this when you try call ttckpt();
722: Log flusher reports error 893 (TT0893: Cannot open log file /var//DemoDataStore/rmdsn.log0. OS-detected error: No such file or directory
If I just created rmdsn.log0 in that directory, and then did ttckpt(); and had the files.
Its possible though you might have lost some transactions that were in the deleted log files and if you had replication or xla, that not having those log files might effect those aspects as well. Note, I didn't test out the delete with those features in use above.
Jim