I manufactured an imbalanced cluster so one region server had 300 regions and the others had very few. I then ran balancer while hitting the high-load region server with YCSB. I observed that the rate of load shedding was VERY slow since the closeRegion IPCs were getting stuck at the back of the IPC queue.
All of these important master->RS RPC calls should be set to high priority.
|Status||Patch Available [ 10002 ]||Resolved [ 5 ]|
|Resolution||Fixed [ 1 ]|
|Fix Version/s||0.90.0 [ 12313607 ]|
|Fix Version/s||0.90.1 [ 12315548 ]|
|Status||Patch Available [ 10002 ]||Open [ 1 ]|