Thanks for your explanation. Now it's clear for me. Regards!
Yong On Tue, Apr 10, 2012 at 6:13 PM, Gary Helmling <ghelml...@gmail.com> wrote: > Each and every HRegion on a given region server will have it's own > distinct instance of your configured RegionObserver class. > RegionCoprocessorEnvironment.getRegion() returns a reference to the > HRegion containing the current coprocessor instance. > > The hierarchy is essentially: > > HRegionServer > \_ HRegion > \_ RegionCoprocessorHost > \_ <your RegionObserver instance> > > (repeated for each HRegion). > > This blog post by Mingjie may help explain things a bit more: > https://blogs.apache.org/hbase/entry/coprocessor_introduction > > > --gh > > > > On Tue, Apr 10, 2012 at 2:30 AM, yonghu <yongyong...@gmail.com> wrote: >> Hello, >> >> The description of this method is " /** @return the region associated >> with this coprocessor */" and the return value is an HRegion instance. >> If I configure the region-coprocessor class in hbase-site.xml. It >> means that this coprocessor will be applied to every HRegion which >> resides on this Region Server (if I understand right). Why this >> method only return one HRgion instance not a list of HRgion >> instances?Suppose that a region server has two HRegions, one is for >> table 'test1', the other is for table 'test2'. Which HRgion instance >> will be returned if I call RegionCoprocessorEnvironment.getReion()? >> >> Thanks! >> >> Yong
