Just to clarify one of the things I'm really trying to figure out:
If I need to bulk insert several hundred thousand nt:files/nt:folders,
because I'm migrating from an old system, what is the best strategy
concerning my JCR Session? Should I be able to use a single Session
the entire time as long as I'm doing a session.save() after I copy each
file?
Thanks!
Steve
Steven Githens wrote:
Hello,
Thomas Mueller wrote:
Hi
Do you mean that Jackrabbit prints the 'resizeAll' line, and then
nothing else for a minute? Don't just blame the most frequent / last
entry in the log file ;-) I suggest to use a profiler, for example the
YourKit Java Profiler, if possible.
I'll definately put in some more YourKit time. You're right, it was
just hanging on something in the Cluster package, before I removed
it. Just wondering if there was something obvious I was doing wrong.
Is there a penalty for rapidly opening and closing sessions?
Yes, it is slow. Opening connections (database or Jackrabbit) is quite
slow. Don't do it if you don't need it.
Ok. In the past (it was on 1.3.1 or earlier) when I've ran tried to
really ramp things up, I actually started running out of file handles
and getting POSIX'ish sorts of errors. (usually I'm running some sort
of Linux distro). Granted, this is a different scenerio.
Given a huge set of files to convert, I'm just not sure at the moment
how many things I should do at a time before retiring the session.
Maybe you should think about using a different persistence manager.
What do you use now? See
http://wiki.apache.org/jackrabbit/PersistenceManagerFAQ for details.
Regards,
Thomas
We've been just using the SimpleDbPersistenceManager, but I did start
looking into the BundlePersistenceManager today. I've yet to look at
the DataStore stuff, or get the extra code for it, but am hoping to
try it as soon as I get a chance.
Thanks!
Steve
