mmiklavc commented on issue #1470: METRON-2193 Upgrade Enrichments for HBase 2.0.2 URL: https://github.com/apache/metron/pull/1470#issuecomment-520664576 I'm currently hunting the source of this issue down for this PR. It's clearly a classpath conflict of some sort, but it will take a bit of sleuthing to find out why the dep is a problem now and wasn't in HDP 2.x. ``` 2019-08-12 22:19:15,038 ERROR [RS_OPEN_REGION-regionserver/node1:16020-3] coprocessor.CoprocessorHost: The coprocessor org.apache.metron.hbase.coprocessor.EnrichmentCoprocessor threw java.lang.LinkageError: loader constraint violation: loader (instance of org/apache/hadoop/hbase/util/CoprocessorClassLoader) previously initiated loading for a different type with name "org/apache/hadoop/conf/Configuration" java.lang.LinkageError: loader constraint violation: loader (instance of org/apache/hadoop/hbase/util/CoprocessorClassLoader) previously initiated loading for a different type with name "org/apache/hadoop/conf/Configuration" at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at org.apache.hadoop.hbase.util.CoprocessorClassLoader.loadClass(CoprocessorClassLoader.java:317) at org.apache.hadoop.hbase.util.CoprocessorClassLoader.loadClass(CoprocessorClassLoader.java:289) at org.apache.metron.hbase.coprocessor.EnrichmentCoprocessor.getZookeeperUrl(EnrichmentCoprocessor.java:151) at org.apache.metron.hbase.coprocessor.EnrichmentCoprocessor.createCacheWriter(EnrichmentCoprocessor.java:133) at org.apache.metron.hbase.coprocessor.EnrichmentCoprocessor.start(EnrichmentCoprocessor.java:122) at org.apache.hadoop.hbase.coprocessor.BaseEnvironment.startup(BaseEnvironment.java:72) at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.checkAndLoadInstance(CoprocessorHost.java:263) at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.load(CoprocessorHost.java:226) at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.load(CoprocessorHost.java:185) at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.loadTableCoprocessors(RegionCoprocessorHost.java:378) at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.<init>(RegionCoprocessorHost.java:274) at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:806) at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:706) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.hbase.regionserver.HRegion.newHRegion(HRegion.java:6845) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7042) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7015) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6973) at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6924) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:283) at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:108) at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) ```
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