Ted, thanks for connecting the two discussion. a topic that quite some folks are looking for solutions.
Alex, as far as my study goes, there is no direct/easy way to get the lag info that is easily consumable by regular users(i.e. not a hbase expert). >From user perspecitive, the lag can be either time or quantity. Although current hbase replication metrics contains a lot of good information, third party tool/monitor has to be applied (JMX, ganglia, etc.) On 0.94 level, the metrics info is at regionsever level, on 95.0 such info also at peer cluster level. I don't think there is plan for a table-level yet. However, the use case is valid. For example: I am replicating table t1 from cluster M1 to cluster S1; how many seconds/minutes the lag is? Well, I haven't found a good solution yet. :-) Demai On Mon, Aug 19, 2013 at 1:04 PM, Ted Yu <[email protected]> wrote: > This is related: http://search-hadoop.com/m/SrEIT1jtzPF > > Cheers > > > On Mon, Aug 19, 2013 at 12:50 PM, gordoslocos <[email protected]> > wrote: > > > I believe hbase keeps info in zk that gives you the count of pending > > operations to be replicated. Check into the rz zookeeper node in the > hbase > > replication documentation. > > > > http://hbase.apache.org/replication.html > > > > > > On 19/08/2013, at 16:42, Alex Newman <[email protected]> wrote: > > > > > I have setup HBase replication. I want to know how out of date my > > replicant > > > cluster is. How does one monitor that? > > > > > > -Alex Newman > > >
