2016-02-06 16:00:53,440 WARN [main]: conf.HiveAuthzConf (HiveAuthzConf.java:get(206)) - Using the deprecated config setting hive.sentry.provider instead of sentry.provider
2016-02-06 16:00:53,510 WARN [main]: metastore.SentryMetaStoreFilterHook (SentryMetaStoreFilterHook.java:filterDb(134)) - Error getting DB list 
java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:187)
at com.google.common.cache.LocalCache.get(LocalCache.java:3964)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969)
at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4829)
at org.apache.hadoop.security.Groups.getGroups(Groups.java:182)
at org.apache.sentry.provider.common.HadoopGroupMappingService.getGroups(HadoopGroupMappingService.java:60)
at org.apache.sentry.provider.common.ResourceAuthorizationProvider.getGroups(ResourceAuthorizationProvider.java:165)
at org.apache.sentry.provider.common.ResourceAuthorizationProvider.doHasAccess(ResourceAuthorizationProvider.java:97)
at org.apache.sentry.provider.common.ResourceAuthorizationProvider.hasAccess(ResourceAuthorizationProvider.java:91)
at org.apache.sentry.binding.hive.authz.HiveAuthzBinding.authorize(HiveAuthzBinding.java:274)
at org.apache.sentry.binding.hive.HiveAuthzBindingHook.filterShowDatabases(HiveAuthzBindingHook.java:710)
at org.apache.sentry.binding.metastore.SentryMetaStoreFilterHook.filterDb(SentryMetaStoreFilterHook.java:131)
at org.apache.sentry.binding.metastore.SentryMetaStoreFilterHook.filterDatabases(SentryMetaStoreFilterHook.java:59)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getAllDatabases(HiveMetaStoreClient.java:1031)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:156)
at com.sun.proxy.$Proxy10.getAllDatabases(Unknown Source)
at org.apache.hadoop.hive.ql.metadata.Hive.getAllDatabases(Hive.java:1234)
at org.apache.hadoop.hive.ql.metadata.Hive.reloadFunctions(Hive.java:174)
at org.apache.hadoop.hive.ql.metadata.Hive.<clinit>(Hive.java:166)
at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:503)
at org.apache.hive.service.cli.CLIService.applyAuthorizationConfigPolicy(CLIService.java:127)
at org.apache.hive.service.cli.CLIService.init(CLIService.java:112)
at org.apache.hive.service.CompositeService.init(CompositeService.java:59)
at org.apache.hive.service.server.HiveServer2.init(HiveServer2.java:100)
at org.apache.hive.service.server.HiveServer2.startHiveServer2(HiveServer2.java:345)
at org.apache.hive.service.server.HiveServer2.access$700(HiveServer2.java:74)
at org.apache.hive.service.server.HiveServer2$StartOptionExecutor.execute(HiveServer2.java:588)
at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:461)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

When I start hiveserver2 ,this exception allways happens. and when login in hive with beeline ,I got no databases or tables.

regards

rube