Region servers replicate data written to them, so look at how your regions are distributed.
J-D On Tue, Aug 27, 2013 at 11:29 AM, Demai Ni <nid...@gmail.com> wrote: > hi, guys, > > I am using hbase 0.94.9. And setup replication from a 4-nodes master(3 > regserver) to a 3-nodes slave(2 regserver). > > I can tell that all source regservers can successfully replicate data. > However, it seems for each particular table, only one regserver will handle > its replication at each given table. > > For example, I am using YCSB to load 1,000,000 rows with workloada, with 16 > threads. During the load period, I looked at the ageOfLastShippedOp and > sizeOfLogQueue. I can tell one of the regserver from Master is doing the > replication. While values of both age and sizeOfLog are growing, another > two regserver doesn't come into help. > > So does that mean: for each table and process, only one regionserver will > do the replication regardless how long the queue is? Or did I miss some > setup configuration? > > Thanks. > > Demai >
