Hi,
We're using the new replication and it's working pretty well. There's
one detail I'd like to get some more information about.
As the replication works, it creates versions of the index in the data
directory. Originally we had index/, but now there are dated versions
such as index.20100127044500/, which are the replicated versions.
Each copy is sized in the vicinity of 65G. With our current hard drive
it's fine to have two around, but 3 gets a little dicey. Sometimes
we're finding that the replication doesn't always clean up after
itself. I would like to understand this better, or to not have this
happen. It could be a configuration issue.
Some more specific questions:
- Is it safe to remove the index/ directory (that doesn't have the
date on it)? I think I tried this once and the whole thing broke,
however maybe something else was wrong at the time.
- Is there a way to know which one is the current one? (I'm looking at
the file index.properties, and it seems to be correct, but sometimes
there's a newer version in the directory, which later is removed)
- Could it be that the index does not finish replicating in the poll
interval I give it? What happens if, say there's a poll interval X and
replicating the index happens to take longer than X sometimes. (Our
current poll interval is 45 minutes, and every time I'm watching it it
completes in time.)
Thanks in advance
Mark
