Hello Community,

I've been trying to execute the next step in the documentation.

https://www.cloudera.com/documentation/enterprise/5-12-x/topics/sg_hdfs_sentry_sync.html

I have done every step on Enabling the HDFS-Sentry Plugin Using Cloudera Manager and stepped into an error on starting HDFS Service that HDFS didn't find Sentry Plugin Class, that got solved by executing

# yum install sentry-hdfs-plugin

I managed, then, to start HDFS Service, but then Hive Metastore Server stopped with the next error.

[main]: Metastore Thrift Server threw an exception...
MetaException(message:Failed to instantiate listener named: org.apache.sentry.binding.metastore.SentryMetastorePostEventListener, reason: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.sentry.hdfs.MetastorePlugin not found)
	at org.apache.hadoop.hive.metastore.MetaStoreUtils.getMetaStoreListeners(MetaStoreUtils.java:1514)
	at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:555)
	at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:78)
	at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:84)
	at org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:6313)
	at org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:6308)
	at org.apache.hadoop.hive.metastore.HiveMetaStore.startMetaStore(HiveMetaStore.java:6558)
	at org.apache.hadoop.hive.metastore.HiveMetaStore.main(HiveMetaStore.java:6485)
	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)

I was looking for some answer as it seems to be an easy problem, but I found nothing related so I think it will be interesting to have it here to help others.

Now I am working with Cloudera Trial Enterprise Virtual Machine, before passing this to our production environment with more hosts, so I am trying to prevent most of the errors here before passing to the new scenario.

Thank you