Hi *HBase : 0.98.1 CDH 5.1.1*
When i am trying to attach CoPro jar to table in RS logs i am getting following Exceptions ERROR org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost:* Failed to load coprocessor * org.apache.hadoop.hbase.coprocessor.RowCountEndpointCoPro java.io.IOException: *Cannot load external coprocessor class * org.apache.hadoop.hbase.coprocessor.RowCountEndpointCoPro at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.load(CoprocessorHost.java:208) at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.loadTableCoprocessors(RegionCoprocessorHost.java:207) at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.<init>(RegionCoprocessorHost.java:163) at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:623) at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:530) at sun.reflect.GeneratedConstructorAccessor15.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.hbase.regionserver.HRegion.newHRegion(HRegion.java:4137) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4448) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4421) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4377) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:4328) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:465) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:139) at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:128) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: *java.lang.ClassNotFoundException: org.apache.hadoop.hbase.coprocessor.RowCountEndpointCoPro* at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at org.apache.hadoop.hbase.util.CoprocessorClassLoader.loadClass(CoprocessorClassLoader.java:275) at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.load(CoprocessorHost.java:206) *command used to load the jar* alter'vsc_sample',METHOD=>'table_att','coprocessor'=>'hdfs://InCites-head.amers1b.ciscloud:8020/user/cloud/ICDS/CoPro/lib/RowCountCoPro0.004.jar|org.apache.hadoop.hbase.coprocessor.RowCountEndpointCoPro|1001' -- *Regards* *VIKRAM SINGH CHANDEL* Please do not print this email unless it is absolutely necessary,Reduce. Reuse. Recycle. Save our planet.