When using solr 1.4 replication, I see that the lucene-write.lock file
is being replicated to slaves. I'm importing data from a db every 5
minutes using cron to trigger a DIH delta-import. Replication polls
every 60 seconds and the master is configured to take a snapshot
(replicateAfter) commit.
Why should the lock file be replicated to slaves?
The lock file isn't stale on the master and is absent unless the delta-
import is in process. I've not tried it yet, but with the lock file
replicated, it seems like promotion of a slave to a master in a
failure recovery scenario requires the manual removal of the lock file.
-Bryan