What's the recommendation for the best way for detecting replication slave replication health, using Solr 1.4 Java replication? The current "details" command returns a lot of useful data, but it's not obvious how best to extract the answer to the simple question: "is replication ok, slow or failed?"
For example, it would be helpful if there were a pair of status values that summarized the slave information like so: str name "slavestatus" OK - last replication poll succeeded or first poll hasn't completed ERROR - last poll failed DISABLED - disabled long name "secondsBehind" Estimate of replication lag. Maybe min(seconds diff between master and slave indexVersion, seconds since last successful poll). No value reported if the master is unreachable. Shawn